Undefined reference to 'cv::Mat:: ' related errors

[MjiS]

Hi,
I have tried building and running your repository. When I compile it on Ubuntu I get the following errors which I think are related to my OpenCV version or NCNN.
Can you specify the version you have used or recommend?
Currently, I'm using the latest OpenCV and NCNN versions.

[onuralpszr]

@MjiS why don't you use cmake/make build ? I see that you doing manually ?

[MjiS]

Thank you for replying. I actually did use cmake. But I'm still unable to fix this issue.
I have tried installing OpenCV using the following links:
1, https://pyimagesearch.com/2016/10/24/ubuntu-16-04-how-to-install-opencv/
2, https://cv-tricks.com/installation/opencv-4-1-ubuntu18-04/

I tried fixing the linking issue of OpenCV but I'm still unable to resolve it.

[onuralpszr]

@MjiS what is your distro ? Because I have CI on repo is basically compile for ubuntu system

https://github.com/onuralpszr/GFPGAN-ncnn-vulkan/blob/main/.github/workflows/build_devCI.yml.

You can clearly see how I got Vulkan and install Opencv. I didn't compile opencv and I used what ubuntu offer me in their repo. Also Ubuntu on github uses Ubuntu 22.04. I did not use olders systems since they are EOL.

[MjiS]

I am also using Ubuntu 22.04.2 LTS. Thanks for pointing out the workflow.
I will try your approach of Windows as you have gently updated the workflow too 😃

[onuralpszr]

I am also using Ubuntu 22.04.2 LTS. Thanks for pointing out the workflow. I will try your approach of Windows as you have gently updated the workflow too 😃

We have workflow for windows but I did not tested fully yet. We just compile it.

[MjiS]

I am also using Ubuntu 22.04.2 LTS. Thanks for pointing out the workflow. I will try your approach of Windows as you have gently updated the workflow too 😃

We have workflow for windows but I did not tested fully yet. We just compile it.

I tried it on windows and Ubuntu but I am still stuck with the issues. Can you provide an .exe file so I can test it on my hardware.

[MjiS]

OpenCV errors are gone and now I'm getting these error related to NCNN.

Command I used:
g++ -o main gfpgan-ncnn-vulkan-demo.cpp face.cpp gfpgan.cpp realesrgan.cpp -I/home/mji/opencv-4.0.0/build/lib/include/opencv4 -I/home/mji/opencv-4.0.0/build/lib -lopencv_gapi -lopencv_highgui -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_video -lopencv_calib3d -lopencv_features2d -lopencv_dnn -lopencv_flann -lopencv_videoio -lopencv_imgcodecs -lopencv_imgproc -lopencv_core -I/home/mji/Pictures/GFPGAN-ncnn-vulkan/src/external/ncnn/src -I/home/mji/Pictures/GFPGAN-ncnn-vulkan/src/build/external/ncnn/src -I/home/mji/Pictures/GFPGAN-ncnn-vulkan/src/include -I/usr/include/opencv4

Error Log:
/usr/bin/ld: warning: libopencv_imgproc.so.4.0, needed by /usr/local/lib/libopencv_gapi.so, may conflict with libopencv_imgproc.so.4.5d
/usr/bin/ld: warning: libopencv_core.so.4.0, needed by /usr/local/lib/libopencv_gapi.so, may conflict with libopencv_core.so.4.5d
/usr/bin/ld: /tmp/ccx8osO7.o: in function Face::Face()': face.cpp:(.text+0x1084): undefined reference to ncnn::Net::Net()'
/usr/bin/ld: /tmp/ccx8osO7.o: in function Face::~Face()': face.cpp:(.text+0x10b6): undefined reference to ncnn::Net::clear()'
/usr/bin/ld: face.cpp:(.text+0x10c2): undefined reference to ncnn::Net::~Net()' /usr/bin/ld: /tmp/ccx8osO7.o: in function Face::load(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)':
face.cpp:(.text+0x10fa): undefined reference to ncnn::Net::load_param(char const*)' /usr/bin/ld: face.cpp:(.text+0x1152): undefined reference to ncnn::Net::load_model(char const*)'
/usr/bin/ld: /tmp/ccx8osO7.o: in function Face::detect(cv::Mat const&, std::vector<Object, std::allocator<Object> >&, float, float)': face.cpp:(.text+0x18a3): undefined reference to ncnn::Mat::from_pixels_resize(unsigned char const*, int, int, int, int, int, ncnn::Allocator*)'
/usr/bin/ld: face.cpp:(.text+0x1970): undefined reference to ncnn::Option::Option()' /usr/bin/ld: face.cpp:(.text+0x19fc): undefined reference to ncnn::copy_make_border(ncnn::Mat const&, ncnn::Mat&, int, int, int, int, int, float, ncnn::Option const&)'
/usr/bin/ld: face.cpp:(.text+0x1a3f): undefined reference to ncnn::Mat::substract_mean_normalize(float const*, float const*)' /usr/bin/ld: face.cpp:(.text+0x1a58): undefined reference to ncnn::Net::create_extractor() const'
/usr/bin/ld: face.cpp:(.text+0x1a78): undefined reference to ncnn::Extractor::input(char const*, ncnn::Mat const&)' /usr/bin/ld: face.cpp:(.text+0x1b1d): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)'
/usr/bin/ld: face.cpp:(.text+0x1bb8): undefined reference to ncnn::Mat::create(int, unsigned long, ncnn::Allocator*)' /usr/bin/ld: face.cpp:(.text+0x20a8): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)'
/usr/bin/ld: face.cpp:(.text+0x2143): undefined reference to ncnn::Mat::create(int, unsigned long, ncnn::Allocator*)' /usr/bin/ld: face.cpp:(.text+0x2c11): undefined reference to ncnn::Extractor::~Extractor()'
/usr/bin/ld: face.cpp:(.text+0x3460): undefined reference to ncnn::Extractor::~Extractor()' /usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::GFPGAN()':
gfpgan.cpp:(.text+0x12e): undefined reference to ncnn::Net::Net()' /usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::~GFPGAN()':
gfpgan.cpp:(.text+0x2d8): undefined reference to ncnn::Net::clear()' /usr/bin/ld: gfpgan.cpp:(.text+0x2ea): undefined reference to ncnn::Net::~Net()'
/usr/bin/ld: /tmp/ccSKszU8.o: in function generate_noise(int const&, int const&, int const&, float const*)': gfpgan.cpp:(.text+0x5e5): undefined reference to ncnn::Mat::create(int, int, int, unsigned long, ncnn::Allocator*)'
/usr/bin/ld: /tmp/ccSKszU8.o: in function relu(ncnn::Mat&, float const&)': gfpgan.cpp:(.text+0x807): undefined reference to ncnn::Option::Option()'
/usr/bin/ld: gfpgan.cpp:(.text+0x825): undefined reference to ncnn::create_layer(char const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x83b): undefined reference to ncnn::ParamDict::ParamDict()'
/usr/bin/ld: gfpgan.cpp:(.text+0x85c): undefined reference to ncnn::ParamDict::set(int, float)' /usr/bin/ld: gfpgan.cpp:(.text+0x921): undefined reference to ncnn::ParamDict::~ParamDict()'
/usr/bin/ld: gfpgan.cpp:(.text+0x948): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: /tmp/ccSKszU8.o: in function binary_add(ncnn::Mat const&, ncnn::Mat const&, ncnn::Mat&)':
gfpgan.cpp:(.text+0x99e): undefined reference to ncnn::Option::Option()' /usr/bin/ld: gfpgan.cpp:(.text+0x9bc): undefined reference to ncnn::create_layer(char const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x9d2): undefined reference to ncnn::ParamDict::ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x9eb): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x12df): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x136d): undefined reference to ncnn::ParamDict::~ParamDict()'
/usr/bin/ld: /tmp/ccSKszU8.o: in function binary_mul(ncnn::Mat const&, ncnn::Mat const&, ncnn::Mat&)': gfpgan.cpp:(.text+0x13c3): undefined reference to ncnn::Option::Option()'
/usr/bin/ld: gfpgan.cpp:(.text+0x13e1): undefined reference to ncnn::create_layer(char const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x13f7): undefined reference to ncnn::ParamDict::ParamDict()'
/usr/bin/ld: gfpgan.cpp:(.text+0x1410): undefined reference to ncnn::ParamDict::set(int, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x1d04): undefined reference to ncnn::ParamDict::~ParamDict()'
/usr/bin/ld: gfpgan.cpp:(.text+0x1d92): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: /tmp/ccSKszU8.o: in function innerproduct(ncnn::Mat const&, float const*, float const*, int const&, int const&, ncnn::Mat&)':
gfpgan.cpp:(.text+0x1e02): undefined reference to ncnn::Option::Option()' /usr/bin/ld: gfpgan.cpp:(.text+0x1e30): undefined reference to ncnn::create_layer(char const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x1e46): undefined reference to ncnn::ParamDict::ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x1e63): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x1e7c): undefined reference to ncnn::ParamDict::set(int, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x1ea5): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x1fc4): undefined reference to ncnn::Mat::create(int, unsigned long, ncnn::Allocator*)' /usr/bin/ld: gfpgan.cpp:(.text+0x1fe9): undefined reference to ncnn::Mat::create(int, unsigned long, ncnn::Allocator*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x2142): undefined reference to ncnn::ModelBinFromMatArray::ModelBinFromMatArray(ncnn::Mat const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x2161): undefined reference to ncnn::ModelBinFromMatArray::~ModelBinFromMatArray()'
/usr/bin/ld: gfpgan.cpp:(.text+0x2382): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x23b0): undefined reference to ncnn::ModelBinFromMatArray::~ModelBinFromMatArray()'
/usr/bin/ld: gfpgan.cpp:(.text+0x254d): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: /tmp/ccSKszU8.o: in function concat(ncnn::Mat const&, ncnn::Mat const&, int, ncnn::Mat&)':
gfpgan.cpp:(.text+0x25af): undefined reference to ncnn::Option::Option()' /usr/bin/ld: gfpgan.cpp:(.text+0x25cd): undefined reference to ncnn::create_layer(char const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x25e3): undefined reference to ncnn::ParamDict::ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x25fd): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x2ef1): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x2f7f): undefined reference to ncnn::ParamDict::~ParamDict()'
/usr/bin/ld: /tmp/ccSKszU8.o: in function convolution(ncnn::Mat const&, float const*, int, int, int, int, ncnn::Mat&)': gfpgan.cpp:(.text+0x2ff8): undefined reference to ncnn::Option::Option()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3020): undefined reference to ncnn::create_layer(char const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x3036): undefined reference to ncnn::ParamDict::ParamDict()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3050): undefined reference to ncnn::ParamDict::set(int, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x306a): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x3083): undefined reference to ncnn::ParamDict::set(int, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x30b4): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x30cd): undefined reference to ncnn::ParamDict::set(int, int)' /usr/bin/ld: /tmp/ccSKszU8.o:gfpgan.cpp:(.text+0x30e7): more undefined references to ncnn::ParamDict::set(int, int)' follow
/usr/bin/ld: /tmp/ccSKszU8.o: in function convolution(ncnn::Mat const&, float const*, int, int, int, int, ncnn::Mat&)': gfpgan.cpp:(.text+0x3254): undefined reference to ncnn::Mat::create(int, unsigned long, ncnn::Allocator*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x32fb): undefined reference to ncnn::ModelBinFromMatArray::ModelBinFromMatArray(ncnn::Mat const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x331a): undefined reference to ncnn::ModelBinFromMatArray::~ModelBinFromMatArray()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3532): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x3560): undefined reference to ncnn::ModelBinFromMatArray::~ModelBinFromMatArray()'
/usr/bin/ld: gfpgan.cpp:(.text+0x36f4): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: /tmp/ccSKszU8.o: in function scale(ncnn::Mat const&, float const&, int, ncnn::Mat&)':
gfpgan.cpp:(.text+0x375b): undefined reference to ncnn::Option::Option()' /usr/bin/ld: gfpgan.cpp:(.text+0x377c): undefined reference to ncnn::create_layer(char const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x3792): undefined reference to ncnn::ParamDict::ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x37ac): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x37c5): undefined reference to ncnn::ParamDict::set(int, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x38cd): undefined reference to ncnn::Mat::create(int, unsigned long, ncnn::Allocator*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x394c): undefined reference to ncnn::ModelBinFromMatArray::ModelBinFromMatArray(ncnn::Mat const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x396b): undefined reference to ncnn::ModelBinFromMatArray::~ModelBinFromMatArray()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3b83): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x3bb1): undefined reference to ncnn::ModelBinFromMatArray::~ModelBinFromMatArray()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3d45): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: /tmp/ccSKszU8.o: in function upsample(ncnn::Mat const&, float const&, ncnn::Mat&)':
gfpgan.cpp:(.text+0x3da1): undefined reference to ncnn::Option::Option()' /usr/bin/ld: gfpgan.cpp:(.text+0x3dbf): undefined reference to ncnn::create_layer(char const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x3dd5): undefined reference to ncnn::ParamDict::ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x3dee): undefined reference to ncnn::ParamDict::set(int, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x3e0f): undefined reference to ncnn::ParamDict::set(int, float)' /usr/bin/ld: gfpgan.cpp:(.text+0x3e30): undefined reference to ncnn::ParamDict::set(int, float)'
/usr/bin/ld: gfpgan.cpp:(.text+0x3ef9): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x3f20): undefined reference to ncnn::ParamDict::~ParamDict()'
/usr/bin/ld: /tmp/ccSKszU8.o: in function clip(ncnn::Mat&, float const&, float const&)': gfpgan.cpp:(.text+0x3f76): undefined reference to ncnn::Option::Option()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3f94): undefined reference to ncnn::create_layer(char const*)' /usr/bin/ld: gfpgan.cpp:(.text+0x3faa): undefined reference to ncnn::ParamDict::ParamDict()'
/usr/bin/ld: gfpgan.cpp:(.text+0x3fcb): undefined reference to ncnn::ParamDict::set(int, float)' /usr/bin/ld: gfpgan.cpp:(.text+0x3fec): undefined reference to ncnn::ParamDict::set(int, float)'
/usr/bin/ld: gfpgan.cpp:(.text+0x40b1): undefined reference to ncnn::ParamDict::~ParamDict()' /usr/bin/ld: gfpgan.cpp:(.text+0x40d8): undefined reference to ncnn::ParamDict::~ParamDict()'
/usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::modulated_conv(ncnn::Mat&, ncnn::Mat&, float const*, float const*, float const*, int, int, int, int, int, int, ncnn::Mat&)': gfpgan.cpp:(.text+0x42d3): undefined reference to ncnn::Mat::create(int, int, int, int, unsigned long, ncnn::Allocator*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x4f29): undefined reference to ncnn::Mat::create(int, int, int, int, unsigned long, ncnn::Allocator*)' /usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::to_rgbs(ncnn::Mat&, ncnn::Mat&, ncnn::Mat&, int, int, int, float const*, float const*, float const*, float const*)':
gfpgan.cpp:(.text+0x6500): undefined reference to ncnn::Mat::reshape(int, int, int, ncnn::Allocator*) const' /usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::style_convs_modulated_conv(ncnn::Mat&, ncnn::Mat, int, int, ncnn::Mat&, int, int, int, float const*, float const*, float const*, float const*, float const*)':
gfpgan.cpp:(.text+0x7068): undefined reference to ncnn::Mat::reshape(int, int, int, ncnn::Allocator*) const' /usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::load_weights(char const*, std::vector<StyleConvWeights, std::allocator >&, std::vector<ToRgbConvWeights, std::allocator >&, ncnn::Mat&)':
gfpgan.cpp:(.text+0x838b): undefined reference to ncnn::Mat::reshape(int, int, int, ncnn::Allocator*) const' /usr/bin/ld: gfpgan.cpp:(.text+0x83a9): undefined reference to ncnn::Mat::clone(ncnn::Allocator*) const'
/usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': gfpgan.cpp:(.text+0x8eb3): undefined reference to ncnn::Net::load_param(char const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x8f15): undefined reference to ncnn::Net::load_model(char const*)' /usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::process(cv::Mat const&, ncnn::Mat&)':
gfpgan.cpp:(.text+0x905d): undefined reference to ncnn::Mat::from_pixels_resize(unsigned char const*, int, int, int, int, int, ncnn::Allocator*)' /usr/bin/ld: gfpgan.cpp:(.text+0x9085): undefined reference to ncnn::Mat::substract_mean_normalize(float const*, float const*)'
/usr/bin/ld: gfpgan.cpp:(.text+0x90a5): undefined reference to ncnn::Net::create_extractor() const' /usr/bin/ld: gfpgan.cpp:(.text+0x90c5): undefined reference to ncnn::Extractor::input(char const*, ncnn::Mat const&)'
/usr/bin/ld: gfpgan.cpp:(.text+0x915b): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x9274): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x9296): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)' /usr/bin/ld: gfpgan.cpp:(.text+0x93d2): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)'
/usr/bin/ld: gfpgan.cpp:(.text+0x93f4): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)' /usr/bin/ld: /tmp/ccSKszU8.o:gfpgan.cpp:(.text+0x9530): more undefined references to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)' follow
/usr/bin/ld: /tmp/ccSKszU8.o: in function GFPGAN::process(cv::Mat const&, ncnn::Mat&)': gfpgan.cpp:(.text+0xe90c): undefined reference to ncnn::Extractor::~Extractor()'
/usr/bin/ld: gfpgan.cpp:(.text+0x11021): undefined reference to ncnn::Extractor::~Extractor()' /usr/bin/ld: /tmp/cc2aVPxj.o: in function RealESRGAN::RealESRGAN()':
realesrgan.cpp:(.text+0x4f): undefined reference to ncnn::Net::Net()' /usr/bin/ld: /tmp/cc2aVPxj.o: in function RealESRGAN::~RealESRGAN()':
realesrgan.cpp:(.text+0xa6): undefined reference to ncnn::Net::clear()' /usr/bin/ld: realesrgan.cpp:(.text+0xb6): undefined reference to ncnn::Net::~Net()'
/usr/bin/ld: /tmp/cc2aVPxj.o: in function RealESRGAN::load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)': realesrgan.cpp:(.text+0xf2): undefined reference to ncnn::Net::load_param(char const*)'
/usr/bin/ld: realesrgan.cpp:(.text+0x14e): undefined reference to ncnn::Net::load_model(char const*)' /usr/bin/ld: /tmp/cc2aVPxj.o: in function RealESRGAN::inference(cv::Mat const&, ncnn::Mat&, int, int)':
realesrgan.cpp:(.text+0x1186): undefined reference to ncnn::Mat::from_pixels(unsigned char const*, int, int, int, ncnn::Allocator*)' /usr/bin/ld: realesrgan.cpp:(.text+0x11a2): undefined reference to ncnn::Mat::substract_mean_normalize(float const*, float const*)'
/usr/bin/ld: realesrgan.cpp:(.text+0x11bc): undefined reference to ncnn::Net::create_extractor() const' /usr/bin/ld: realesrgan.cpp:(.text+0x11d6): undefined reference to ncnn::Extractor::input(char const*, ncnn::Mat const&)'
/usr/bin/ld: realesrgan.cpp:(.text+0x11f5): undefined reference to ncnn::Extractor::extract(char const*, ncnn::Mat&, int)' /usr/bin/ld: realesrgan.cpp:(.text+0x1206): undefined reference to ncnn::Extractor::~Extractor()'
/usr/bin/ld: realesrgan.cpp:(.text+0x1377): undefined reference to `ncnn::Extractor::~Extractor()'
collect2: error: ld returned 1 exit status

[onuralpszr]

Do not include opencv twice from 2 different source and please USE "cmake" it will make easier. just install cmake and

git clone --recursive https://github.com/onuralpszr/GFPGAN-ncnn-vulkan.git
cd GFPGAN-ncnn-vulkan
mkdir build
cd build
cmake ..
make -j2

If you already install opencv and vulkanSDK , which I can see that you have opencv part done you should be able to install without problem.

[MjiS]

I did use cmake and here are the log for cmake ..
`$ cmake ..
-- The C compiler identification is GNU 11.4.0
-- The CXX compiler identification is GNU 11.4.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
-- Found Vulkan: /usr/lib/x86_64-linux-gnu/libvulkan.so
-- Vulkan_INCLUDE_DIRS: /usr/include
-- Vulkan_LIBRARIES: /usr/lib/x86_64-linux-gnu/libvulkan.so
-- Vulkan_LIBRARY: /usr/lib/x86_64-linux-gnu/libvulkan.so
-- Vulkan_FOUND: TRUE
-- Found glslangValidator: /usr/bin/glslangValidator
-- Found OpenCV: /usr/local (found version "4.0.0")
-- OpenCV_LIBS: opencv_calib3d;opencv_core;opencv_dnn;opencv_features2d;opencv_flann;opencv_gapi;opencv_highgui;opencv_imgcodecs;opencv_imgproc;opencv_ml;opencv_objdetect;opencv_photo;opencv_stitching;opencv_video;opencv_videoio;opencv_aruco;opencv_bgsegm;opencv_bioinspired;opencv_ccalib;opencv_datasets;opencv_dnn_objdetect;opencv_dpm;opencv_face;opencv_freetype;opencv_fuzzy;opencv_hfs;opencv_img_hash;opencv_line_descriptor;opencv_optflow;opencv_phase_unwrapping;opencv_plot;opencv_reg;opencv_rgbd;opencv_saliency;opencv_shape;opencv_stereo;opencv_structured_light;opencv_superres;opencv_surface_matching;opencv_text;opencv_tracking;opencv_videostab;opencv_xfeatures2d;opencv_ximgproc;opencv_xobjdetect;opencv_xphoto
-- OpenCV_INCLUDE_DIRS: /usr/local/include/opencv4
-- Found OpenMP_C: -fopenmp (found version "4.5")
-- Found OpenMP_CXX: -fopenmp (found version "4.5")
-- Found OpenMP: TRUE (found version "4.5")
OPENMP FOUND
-- CMAKE_INSTALL_PREFIX = /usr/local
-- NCNN_VERSION_STRING = 1.0.20231003
-- Performing Test NCNN_COMPILER_SUPPORT_GNU_INLINE_ASM
-- Performing Test NCNN_COMPILER_SUPPORT_GNU_INLINE_ASM - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_FMA
-- Performing Test NCNN_COMPILER_SUPPORT_X86_FMA - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_XOP
-- Performing Test NCNN_COMPILER_SUPPORT_X86_XOP - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_F16C
-- Performing Test NCNN_COMPILER_SUPPORT_X86_F16C - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX2
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX2 - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512 - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX_VNNI
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX_VNNI - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512_VNNI
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512_VNNI - Success
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512_BF16
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512_BF16 - Failed
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512_FP16
-- Performing Test NCNN_COMPILER_SUPPORT_X86_AVX512_FP16 - Failed
CMake Warning at external/ncnn/CMakeLists.txt:496 (message):
The compiler does not support avx512 bf16 extension. NCNN_AVX512BF16 will
be OFF.

CMake Warning at external/ncnn/CMakeLists.txt:503 (message):
The compiler does not support avx512 fp16 extension. NCNN_AVX512FP16 will
be OFF.

-- Target arch: x86 64bit
-- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY
-- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY - Success
-- Performing Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY
-- Performing Test COMPILER_HAS_HIDDEN_INLINE_VISIBILITY - Success
-- Performing Test COMPILER_HAS_DEPRECATED_ATTR
-- Performing Test COMPILER_HAS_DEPRECATED_ATTR - Success
-- Found OpenMP_C: -fopenmp (found version "4.5")
-- Found OpenMP_CXX: -fopenmp (found version "4.5")
-- Performing Test HAVE_BUILTIN_BSWAP16
-- Performing Test HAVE_BUILTIN_BSWAP16 - Success
-- Performing Test HAVE_BUILTIN_BSWAP32
-- Performing Test HAVE_BUILTIN_BSWAP32 - Success
-- Performing Test HAVE_BUILTIN_BSWAP64
-- Performing Test HAVE_BUILTIN_BSWAP64 - Success
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libGL.so
-- Performing Test HAVE_MATH_LIBRARY
-- Performing Test HAVE_MATH_LIBRARY - Failed
-- Adding -lm flag.
-- Looking for include file GLUT/glut.h
-- Looking for include file GLUT/glut.h - not found
-- Looking for include file GL/glut.h
-- Looking for include file GL/glut.h - not found
-- Looking for include file OpenGL/glut.h
-- Looking for include file OpenGL/glut.h - not found
-- Looking for include file shlwapi.h
-- Looking for include file shlwapi.h - not found
-- Looking for include file unistd.h
-- Looking for include file unistd.h - found
-- Looking for include file wincodec.h
-- Looking for include file wincodec.h - not found
-- Looking for include file windows.h
-- Looking for include file windows.h - not found
-- Performing Test WEBP_HAVE_FLAG_SSE41
-- Performing Test WEBP_HAVE_FLAG_SSE41 - Failed
-- Performing Test WEBP_HAVE_FLAG_SSE41
-- Performing Test WEBP_HAVE_FLAG_SSE41 - Success
-- Performing Test WEBP_HAVE_FLAG_SSE2
-- Performing Test WEBP_HAVE_FLAG_SSE2 - Success
-- Performing Test WEBP_HAVE_FLAG_MIPS32
-- Performing Test WEBP_HAVE_FLAG_MIPS32 - Failed
-- Performing Test WEBP_HAVE_FLAG_MIPS32
-- Performing Test WEBP_HAVE_FLAG_MIPS32 - Failed
-- Performing Test WEBP_HAVE_FLAG_MIPS_DSP_R2
-- Performing Test WEBP_HAVE_FLAG_MIPS_DSP_R2 - Failed
-- Performing Test WEBP_HAVE_FLAG_MIPS_DSP_R2
-- Performing Test WEBP_HAVE_FLAG_MIPS_DSP_R2 - Failed
-- Performing Test HAS_COMPILE_FLAG
-- Performing Test HAS_COMPILE_FLAG - Failed
-- Performing Test WEBP_HAVE_FLAG_NEON
-- Performing Test WEBP_HAVE_FLAG_NEON - Failed
-- Performing Test WEBP_HAVE_FLAG_NEON
-- Performing Test WEBP_HAVE_FLAG_NEON - Failed
-- Performing Test WEBP_HAVE_FLAG_MSA
-- Performing Test WEBP_HAVE_FLAG_MSA - Failed
-- Performing Test WEBP_HAVE_FLAG_MSA
-- Performing Test WEBP_HAVE_FLAG_MSA - Failed
-- Performing Test HAS_COMPILE_FLAG
-- Performing Test HAS_COMPILE_FLAG - Failed
-- Configuring done
-- Generating done
-- Build files have been written to: /home/mji/Music/GFPGAN-ncnn-vulkan/src/build`

Here is the command for compilation:

g++ -o main gfpgan-ncnn-vulkan-demo.cpp face.cpp gfpgan.cpp realesrgan.cpp -L/home/mji/Documents/ncnn/build/install/lib -lncnn -fopenmp -lvulkan -L/home/mji/opencv-4.0.0/build/lib -lopencv_gapi -lopencv_highgui -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_video -lopencv_calib3d -lopencv_features2d -lopencv_dnn -lopencv_flann -lopencv_videoio -lopencv_imgcodecs -lopencv_imgproc -lopencv_core -I/home/mji/Music/GFPGAN-ncnn-vulkan/src/external/ncnn/src -I/home/mji/Music/GFPGAN-ncnn-vulkan/src/build/external/ncnn/src -I/home/mji/Music/GFPGAN-ncnn-vulkan/src/include -I/usr/include/opencv4 -L/usr/lib/x86_64-linux-gnu/ -lglslang

Here are the logs:
/usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::destroy_gpu_instance()':
gpu.cpp:(.text+0xead): undefined reference to glslang::FinalizeProcess()' /usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::create_gpu_instance()':
gpu.cpp:(.text+0x4a18): undefined reference to glslang::InitializeProcess()' /usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::compile_spirv_module(char const*, int, ncnn::Option const&, std::vector<unsigned int, std::allocator >&)':
gpu.cpp:(.text+0xabc5): undefined reference to glslang::TShader::TShader(EShLanguage)' /usr/bin/ld: gpu.cpp:(.text+0xabe7): undefined reference to glslang::TShader::setStringsWithLengths(char const* const*, int const*, int)'
/usr/bin/ld: gpu.cpp:(.text+0xac04): undefined reference to glslang::TShader::addProcesses(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)' /usr/bin/ld: gpu.cpp:(.text+0xac16): undefined reference to glslang::TShader::setEntryPoint(char const*)'
/usr/bin/ld: gpu.cpp:(.text+0xac21): undefined reference to glslang::TShader::setSourceEntryPoint(char const*)' /usr/bin/ld: gpu.cpp:(.text+0xae1d): undefined reference to glslang::TShader::parse(TBuiltInResource const*, int, EProfile, bool, bool, EShMessages, glslang::TShader::Includer&)'
/usr/bin/ld: gpu.cpp:(.text+0xae5c): undefined reference to glslang::TShader::getInfoLog()' /usr/bin/ld: gpu.cpp:(.text+0xae7c): undefined reference to glslang::TShader::getInfoDebugLog()'
/usr/bin/ld: gpu.cpp:(.text+0xaea6): undefined reference to glslang::TShader::~TShader()' /usr/bin/ld: gpu.cpp:(.text+0xafb1): undefined reference to glslang::GlslangToSpv(glslang::TIntermediate const&, std::vector<unsigned int, std::allocator >&, glslang::SpvOptions*)'
/usr/bin/ld: gpu.cpp:(.text+0xafc0): undefined reference to glslang::TShader::~TShader()' /usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::compile_spirv_module(char const*, int, ncnn::Option const&, std::vector<unsigned int, std::allocator >&) [clone .cold]':
gpu.cpp:(.text.unlikely+0x317): undefined reference to glslang::TShader::~TShader()' /usr/bin/ld: /tmp/ccahi8bk.o: in function to_ocv(ncnn::Mat const&, cv::Mat&)':
gfpgan-ncnn-vulkan-demo.cpp:(.text+0xd69): undefined reference to cv::Mat::Mat()' /usr/bin/ld: /tmp/ccahi8bk.o: in function paste_faces_to_input_image(cv::Mat const&, cv::Mat&, cv::Mat&)':
gfpgan-ncnn-vulkan-demo.cpp:(.text+0xf67): undefined reference to cv::Mat::Mat()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x10ed): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x11e0): undefined reference to cv::Mat::Mat()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1323): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: /tmp/ccahi8bk.o:gfpgan-ncnn-vulkan-demo.cpp:(.text+0x146e): more undefined references to cv::Mat::Mat()' follow /usr/bin/ld: /tmp/ccd8ZbuM.o: in function Object::Object(Object&&)':
face.cpp:(.text.ZN6ObjectC2EOS[ZN6ObjectC5EOS]+0x7a): undefined reference to cv::Mat::Mat(cv::Mat&&)' /usr/bin/ld: /tmp/ccd8ZbuM.o: in function void _gnu_cxx::new_allocatorcv::Mat::construct<cv::Mat, cv::Mat>(cv::Mat*, cv::Mat&&)':
face.cpp:(.text.ZN9__gnu_cxx13new_allocatorIN2cv3MatEE9constructIS2_JS2_EEEvPT_DpOT0[ZN9__gnu_cxx13new_allocatorIN2cv3MatEE9constructIS2_JS2_EEEvPT_DpOT0]+0x47): undefined reference to cv::Mat::Mat(cv::Mat&&)' /usr/bin/ld: /tmp/ccDZB8rU.o: in function RealESRGAN::to_ocv(cv::Mat const&, ncnn::Mat const&)':
realesrgan.cpp:(.text+0xe88): undefined reference to cv::Mat::Mat()' /usr/bin/ld: /tmp/ccDZB8rU.o: in function RealESRGAN::tile_process(cv::Mat const&, cv::Mat&)':
realesrgan.cpp:(.text+0x14df): undefined reference to cv::Mat::Mat()' /usr/bin/ld: realesrgan.cpp:(.text+0x15e0): undefined reference to cv::Mat::Mat(cv::Size, int)'
collect2: error: ld returned 1 exit status
`

[MjiS]

Update:
Command
g++ -o main gfpgan-ncnn-vulkan-demo.cpp face.cpp gfpgan.cpp realesrgan.cpp -L/home/mji/Documents/ncnn/build/install/lib -lncnn -fopenmp -lvulkan -I/home/mji/opencv-4.0.0/build/lib/include/opencv4 -L/home/mji/opencv-4.0.0/build/lib -lopencv_gapi -lopencv_core -lopencv_highgui -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_video -lopencv_calib3d -lopencv_features2d -lopencv_dnn -lopencv_flann -lopencv_videoio -lopencv_imgcodecs -lopencv_imgproc -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/external/ncnn/src -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/build/external/ncnn/src -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/include -I/usr/include/opencv4 -L/usr/lib/x86_64-linux-gnu -lglslang -lSPIRV -lHLSL -lOSDependent -lOGLCompiler

Error Log:
/usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::destroy_gpu_instance()': gpu.cpp:(.text+0xead): undefined reference to glslang::FinalizeProcess()'
/usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::create_gpu_instance()': gpu.cpp:(.text+0x4a18): undefined reference to glslang::InitializeProcess()'
/usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::compile_spirv_module(char const*, int, ncnn::Option const&, std::vector<unsigned int, std::allocator<unsigned int> >&)': gpu.cpp:(.text+0xabc5): undefined reference to glslang::TShader::TShader(EShLanguage)'
/usr/bin/ld: gpu.cpp:(.text+0xabe7): undefined reference to glslang::TShader::setStringsWithLengths(char const* const*, int const*, int)' /usr/bin/ld: gpu.cpp:(.text+0xac04): undefined reference to glslang::TShader::addProcesses(std::vector<std::__cxx11::basic_string<char, std::char_traits, std::allocator >, std::allocator<std::__cxx11::basic_string<char, std::char_traits, std::allocator > > > const&)'
/usr/bin/ld: gpu.cpp:(.text+0xac16): undefined reference to glslang::TShader::setEntryPoint(char const*)' /usr/bin/ld: gpu.cpp:(.text+0xac21): undefined reference to glslang::TShader::setSourceEntryPoint(char const*)'
/usr/bin/ld: gpu.cpp:(.text+0xae1d): undefined reference to glslang::TShader::parse(TBuiltInResource const*, int, EProfile, bool, bool, EShMessages, glslang::TShader::Includer&)' /usr/bin/ld: gpu.cpp:(.text+0xae5c): undefined reference to glslang::TShader::getInfoLog()'
/usr/bin/ld: gpu.cpp:(.text+0xae7c): undefined reference to glslang::TShader::getInfoDebugLog()' /usr/bin/ld: gpu.cpp:(.text+0xaea6): undefined reference to glslang::TShader::~TShader()'
/usr/bin/ld: gpu.cpp:(.text+0xafc0): undefined reference to glslang::TShader::~TShader()' /usr/bin/ld: /home/mji/Documents/ncnn/build/install/lib/libncnn.a(gpu.cpp.o): in function ncnn::compile_spirv_module(char const*, int, ncnn::Option const&, std::vector<unsigned int, std::allocator >&) [clone .cold]':
gpu.cpp:(.text.unlikely+0x317): undefined reference to glslang::TShader::~TShader()' /usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function std::_Rb_tree_node<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > >* std::_Rb_tree<int, std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> >, std::_Select1st<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > >, std::less, glslang::pool_allocator<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > > >::_M_copy<false, std::_Rb_tree<int, std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> >, std::_Select1st<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > >, std::less, glslang::pool_allocator<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > > >::_Alloc_node>(std::_Rb_tree_node<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > >, std::_Rb_tree_node_base, std::_Rb_tree<int, std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> >, std::_Select1st<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > >, std::less, glslang::pool_allocator<std::pair<int const, glslang::TVector<glslang::TIntermConstantUnion const*> > > >::_Alloc_node&) [clone .isra.0]':
(.text+0xb23): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)' /usr/bin/ld: (.text+0xb32): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: (.text+0xb67): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)' /usr/bin/ld: (.text+0xbfb): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: (.text+0xc0a): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0xc42): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function std::_Rb_tree_node<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > >* std::_Rb_tree<int, std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> >, std::_Select1st<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > >, std::less<int>, glslang::pool_allocator<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > > >::_M_copy<false, std::_Rb_tree<int, std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> >, std::_Select1st<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > >, std::less<int>, glslang::pool_allocator<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > > >::_Alloc_node>(std::_Rb_tree_node<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > >*, std::_Rb_tree_node_base*, std::_Rb_tree<int, std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> >, std::_Select1st<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > >, std::less<int>, glslang::pool_allocator<std::pair<int const, glslang::TVector<glslang::TIntermTyped const*> > > >::_Alloc_node&) [clone .isra.0]': (.text+0xd23): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: (.text+0xd32): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0xd67): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: (.text+0xdfb): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)' /usr/bin/ld: (.text+0xe0a): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: (.text+0xe42): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)' /usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function (anonymous namespace)::TGlslangToSpvTraverser::convertGlslangToSpvType(glslang::TType const&, glslang::TLayoutPacking, glslang::TQualifier const&, bool, bool)':
(.text+0xffc2): undefined reference to glslang::TIntermediate::getMemberAlignment(glslang::TType const&, int&, int&, glslang::TLayoutPacking, bool)' /usr/bin/ld: (.text+0x100c9): undefined reference to glslang::TIntermediate::getMemberAlignment(glslang::TType const&, int&, int&, glslang::TLayoutPacking, bool)'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function (anonymous namespace)::TGlslangToSpvTraverser::convertGlslangStructToSpvType(glslang::TType const&, glslang::TVector<glslang::TTypeLoc> const*, glslang::TLayoutPacking, glslang::TQualifier const&)': (.text+0x11fa9): undefined reference to glslang::TIntermediate::getMemberAlignment(glslang::TType const&, int&, int&, glslang::TLayoutPacking, bool)'
/usr/bin/ld: (.text+0x12088): undefined reference to glslang::TIntermediate::improperStraddle(glslang::TType const&, int, int)' /usr/bin/ld: (.text+0x125ef): undefined reference to glslang::TIntermediate::getMemberAlignment(glslang::TType const&, int&, int&, glslang::TLayoutPacking, bool)'
/usr/bin/ld: (.text+0x12d5f): undefined reference to glslang::TIntermediate::getBaseAlignmentScalar(glslang::TType const&, int&)' /usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function (anonymous namespace)::TGlslangToSpvTraverser::visitBinary(glslang::TVisit, glslang::TIntermBinary*)':
(.text+0x1bd5b): undefined reference to glslang::TIntermediate::getBaseAlignmentScalar(glslang::TType const&, int&)' /usr/bin/ld: (.text+0x1c5cc): undefined reference to glslang::TIntermediate::getBaseAlignmentScalar(glslang::TType const&, int&)'
/usr/bin/ld: (.text+0x1c750): undefined reference to glslang::TIntermediate::getBaseAlignmentScalar(glslang::TType const&, int&)' /usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function (anonymous namespace)::TGlslangToSpvTraverser::getSymbolId(glslang::TIntermSymbol const*)':
(.text+0x2089a): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0x21060): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function (anonymous namespace)::TGlslangToSpvTraverser::visitUnary(glslang::TVisit, glslang::TIntermUnary*)': (.text+0x261b1): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function (anonymous namespace)::TGlslangToSpvTraverser::visitAggregate(glslang::TVisit, glslang::TIntermAggregate*)': (.text+0x29b65): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: (.text+0x2acc9): undefined reference to glslang::TIntermediate::findLinkerObjects() const' /usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function glslang::GlslangToSpv(glslang::TIntermediate const&, std::vector<unsigned int, std::allocator >&, spv::SpvBuildLogger*, glslang::SpvOptions*)':
(.text+0x2c8b5): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0x2c8bd): undefined reference to glslang::TPoolAllocator::push()'
/usr/bin/ld: (.text+0x2c8f0): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0x2c963): undefined reference to glslang::GetKhronosToolId()'
/usr/bin/ld: (.text+0x2d1e3): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0x2d1eb): undefined reference to glslang::TPoolAllocator::pop()'
/usr/bin/ld: (.text+0x2d597): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text+0x2d659): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function glslang::TType::setFieldName(std::__cxx11::basic_string<char, std::char_traits<char>, glslang::pool_allocator<char> > const&)': (.text._ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE[_ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE]+0x1a): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: (.text._ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE[_ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE]+0x27): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)' /usr/bin/ld: (.text._ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE[_ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE]+0x2f): undefined reference to glslang::GetThreadPoolAllocator()'
/usr/bin/ld: (.text._ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE[_ZN7glslang5TType12setFieldNameERKNSt7__cxx1112basic_stringIcSt11char_traitsIcENS_14pool_allocatorIcEEEE]+0x98): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)' /usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function glslang::TType::TType(glslang::TType const&, int, bool)':
(.text._ZN7glslang5TTypeC2ERKS0_ib[_ZN7glslang5TTypeC5ERKS0_ib]+0x247): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text._ZN7glslang5TTypeC2ERKS0_ib[_ZN7glslang5TTypeC5ERKS0_ib]+0x254): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: (.text._ZN7glslang5TTypeC2ERKS0_ib[_ZN7glslang5TTypeC5ERKS0_ib]+0x2b2): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text._ZN7glslang5TTypeC2ERKS0_ib[_ZN7glslang5TTypeC5ERKS0_ib]+0x2bf): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: (.text._ZN7glslang5TTypeC2ERKS0_ib[ZN7glslang5TTypeC5ERKS0_ib]+0x2c7): undefined reference to glslang::GetThreadPoolAllocator()' /usr/bin/ld: (.text._ZN7glslang5TTypeC2ERKS0_ib[_ZN7glslang5TTypeC5ERKS0_ib]+0x325): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function glslang::TType::operator==(glslang::TType const&) const': (.text._ZNK7glslang5TTypeeqERKS0_[_ZNK7glslang5TTypeeqERKS0_]+0x3e0): undefined reference to glslang::TSpirvTypeParameter::operator==(glslang::TSpirvTypeParameter const&) const'
/usr/bin/ld: /usr/lib/x86_64-linux-gnu/libSPIRV.a(GlslangToSpv.cpp.o): in function glslang::TIntermConstantUnion const*& std::vector<glslang::TIntermConstantUnion const*, glslang::pool_allocator<glslang::TIntermConstantUnion const*> >::emplace_back<glslang::TIntermConstantUnion const*>(glslang::TIntermConstantUnion const*&&)': (.text._ZNSt6vectorIPKN7glslang20TIntermConstantUnionENS0_14pool_allocatorIS3_EEE12emplace_backIJS3_EEERS3_DpOT_[_ZNSt6vectorIPKN7glslang20TIntermConstantUnionENS0_14pool_allocatorIS3_EEE12emplace_backIJS3_EEERS3_DpOT_]+0xfd): undefined reference to glslang::TPoolAllocator::allocate(unsigned long)'
/usr/bin/ld: /tmp/cczFxPGm.o: in function to_ocv(ncnn::Mat const&, cv::Mat&)': gfpgan-ncnn-vulkan-demo.cpp:(.text+0xd69): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: /tmp/cczFxPGm.o: in function paste_faces_to_input_image(cv::Mat const&, cv::Mat&, cv::Mat&)': gfpgan-ncnn-vulkan-demo.cpp:(.text+0xf67): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x10ed): undefined reference to cv::Mat::Mat()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x11e0): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1323): undefined reference to cv::Mat::Mat()' /usr/bin/ld: /tmp/cczFxPGm.o:gfpgan-ncnn-vulkan-demo.cpp:(.text+0x146e): more undefined references to cv::Mat::Mat()' follow
/usr/bin/ld: /tmp/ccGocYoK.o: in function Object::Object(Object&&)': face.cpp:(.text._ZN6ObjectC2EOS_[_ZN6ObjectC5EOS_]+0x7a): undefined reference to cv::Mat::Mat(cv::Mat&&)'
/usr/bin/ld: /tmp/ccGocYoK.o: in function void __gnu_cxx::new_allocator<cv::Mat>::construct<cv::Mat, cv::Mat>(cv::Mat*, cv::Mat&&)': face.cpp:(.text._ZN9__gnu_cxx13new_allocatorIN2cv3MatEE9constructIS2_JS2_EEEvPT_DpOT0_[_ZN9__gnu_cxx13new_allocatorIN2cv3MatEE9constructIS2_JS2_EEEvPT_DpOT0_]+0x47): undefined reference to cv::Mat::Mat(cv::Mat&&)'
/usr/bin/ld: /tmp/ccN0MHMH.o: in function RealESRGAN::to_ocv(cv::Mat const&, ncnn::Mat const&)': realesrgan.cpp:(.text+0xe88): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: /tmp/ccN0MHMH.o: in function RealESRGAN::tile_process(cv::Mat const&, cv::Mat&)': realesrgan.cpp:(.text+0x14df): undefined reference to cv::Mat::Mat()'
/usr/bin/ld: realesrgan.cpp:(.text+0x15e0): undefined reference to `cv::Mat::Mat(cv::Size, int)'
collect2: error: ld returned 1 exit status

[onuralpszr]

g++ -o main gfpgan-ncnn-vulkan-demo.cpp face.cpp gfpgan.cpp realesrgan.cpp -L/home/mji/Documents/ncnn/build/install/lib -lncnn -fopenmp -lvulkan -I/home/mji/opencv-4.0.0/build/lib/include/opencv4 -L/home/mji/opencv-4.0.0/build/lib -lopencv_gapi -lopencv_core -lopencv_highgui -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_video -lopencv_calib3d -lopencv_features2d -lopencv_dnn -lopencv_flann -lopencv_videoio -lopencv_imgcodecs -lopencv_imgproc -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/external/ncnn/src -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/build/external/ncnn/src -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/include -I/usr/include/opencv4 -L/usr/lib/x86_64-linux-gnu -lglslang -lSPIRV -lHLSL -lOSDependent -lOGLCompiler

Did you type this yourself ?

[onuralpszr]

First please remove that opencv 4.0.0 from path and do this commands. I see that you have vulkan so that should be fine.

sudo apt update
sudo apt install libopencv-dev python3-opencv -y
git clone --recursive https://github.com/onuralpszr/GFPGAN-ncnn-vulkan.git
cd GFPGAN-ncnn-vulkan
mkdir build && cd build
cmake ../src
cmake --build . -j 2

[MjiS]

g++ -o main gfpgan-ncnn-vulkan-demo.cpp face.cpp gfpgan.cpp realesrgan.cpp -L/home/mji/Documents/ncnn/build/install/lib -lncnn -fopenmp -lvulkan -I/home/mji/opencv-4.0.0/build/lib/include/opencv4 -L/home/mji/opencv-4.0.0/build/lib -lopencv_gapi -lopencv_core -lopencv_highgui -lopencv_ml -lopencv_objdetect -lopencv_photo -lopencv_stitching -lopencv_video -lopencv_calib3d -lopencv_features2d -lopencv_dnn -lopencv_flann -lopencv_videoio -lopencv_imgcodecs -lopencv_imgproc -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/external/ncnn/src -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/build/external/ncnn/src -I/home/mji/Documents/GFPGAN-ncnn-vulkan/src/include -I/usr/include/opencv4 -L/usr/lib/x86_64-linux-gnu -lglslang -lSPIRV -lHLSL -lOSDependent -lOGLCompiler

Did you type this yourself ?

I used gpt for this command as per gpt's suggestion, order of import matters. Previous commands were typed by me.

Don't use this and use what I sent and also please install opencv via commands I typed as well. Use "cmake" it is so much easier to control and compile, you don't need to think THOSE commands at all. And remove opencv 4.0.0 from your path and etc. Re-check my workflow and my commands I sent you.

[MjiS]

I'm really Sorry for being a noob as I'm new to all this and c++ from a non tech. background.

Well the issue is that I have tried your approach but when I compile it, it gives error as following:

And by using your approach I can't find opencv.hpp for that I have to build OpenCV using CMAKE and then I can specify the opencv.hpp file but it still doesn't work.

Here is the Command and Error Log:

g++ -o main gfpgan-ncnn-vulkan-demo.cpp -I/home/mji/Music/GFPGAN-ncnn-vulkan/src/external/ncnn/src/ -I/home/mji/Music/GFPGAN-ncnn-vulkan/build/external/ncnn/src/ -I/home/mji/Music/GFPGAN-ncnn-vulkan/src/include/ -I/usr/local/include/opencv4
/usr/bin/ld: /tmp/cczkwUbb.o: in function to_ocv(ncnn::Mat const&, cv::Mat&)': gfpgan-ncnn-vulkan-demo.cpp:(.text+0xad): undefined reference to cv::Mat::zeros(cv::Size_, int)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0xdb0): undefined reference to cv::Mat::convertTo(cv::_OutputArray const&, int, double, double) const' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0xdf1): undefined reference to cv::Mat::copyTo(cv::OutputArray const&) const'
/usr/bin/ld: /tmp/cczkwUbb.o: in function paste_faces_to_input_image(cv::Mat const&, cv::Mat&, cv::Mat&)': gfpgan-ncnn-vulkan-demo.cpp:(.text+0x101a): undefined reference to cv::warpAffine(cv::InputArray const&, cv::OutputArray const&, cv::InputArray const&, cv::Size, int, int, cv::Scalar const&)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1082): undefined reference to cv::Mat::ones(cv::Size_<int>, int)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x10a7): undefined reference to cv::operator*(cv::MatExpr const&, double)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x11a0): undefined reference to cv::warpAffine(cv::_InputArray const&, cv::_OutputArray const&, cv::_InputArray const&, cv::Size_<int>, int, int, cv::Scalar_<double> const&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1234): undefined reference to cv::getStructuringElement(int, cv::Size, cv::Point)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x12e3): undefined reference to cv::erode(cv::_InputArray const&, cv::_OutputArray const&, cv::_InputArray const&, cv::Point_<int>, int, int, cv::Scalar_<double> const&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x13ab): undefined reference to cv::bitwise_and(cv::_InputArray const&, cv::_InputArray const&, cv::OutputArray const&, cv::InputArray const&)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x140f): undefined reference to cv::countNonZero(cv::_InputArray const&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x14c6): undefined reference to cv::getStructuringElement(int, cv::Size, cv::Point)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x159d): undefined reference to cv::erode(cv::_InputArray const&, cv::_OutputArray const&, cv::_InputArray const&, cv::Point_<int>, int, int, cv::Scalar_<double> const&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1672): undefined reference to cv::GaussianBlur(cv::_InputArray const&, cv::OutputArray const&, cv::Size, double, double, int)'
/usr/bin/ld: /tmp/cczkwUbb.o: in function main': gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1d87): undefined reference to cv::imread(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1df6): undefined reference to GFPGAN::GFPGAN()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1ea7): undefined reference to GFPGAN::load(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1f10): undefined reference to Face::Face()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1f8e): undefined reference to Face::load(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x1fd9): undefined reference to RealESRGAN::RealESRGAN()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x2057): undefined reference to RealESRGAN::load(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x20c2): undefined reference to RealESRGAN::tile_process(cv::Mat const&, cv::Mat&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x2121): undefined reference to Face::detect(cv::Mat const&, std::vector<Object, std::allocator >&, float, float)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x214f): undefined reference to Face::align_warp_face(cv::Mat&, std::vector<Object, std::allocator<Object> > const&, std::vector<cv::Mat, std::allocator<cv::Mat> >&, std::vector<cv::Mat, std::allocator<cv::Mat> >&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x2208): undefined reference to GFPGAN::process(cv::Mat const&, ncnn::Mat&)'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x247c): undefined reference to cv::imwrite(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cv::_InputArray const&, std::vector<int, std::allocator<int> > const&)' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x2508): undefined reference to RealESRGAN::~RealESRGAN()'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x2517): undefined reference to Face::~Face()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x2526): undefined reference to GFPGAN::~GFPGAN()'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x28ce): undefined reference to RealESRGAN::~RealESRGAN()' /usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x28e6): undefined reference to Face::~Face()'
/usr/bin/ld: gfpgan-ncnn-vulkan-demo.cpp:(.text+0x28fe): undefined reference to GFPGAN::~GFPGAN()' /usr/bin/ld: /tmp/cczkwUbb.o: in function cv::Mat::~Mat()':
gfpgan-ncnn-vulkan-demo.cpp:(.text._ZN2cv3MatD2Ev[_ZN2cv3MatD5Ev]+0x3d): undefined reference to cv::fastFree(void*)' /usr/bin/ld: /tmp/cczkwUbb.o: in function cv::Mat::release()':
gfpgan-ncnn-vulkan-demo.cpp:(.text._ZN2cv3Mat7releaseEv[_ZN2cv3Mat7releaseEv]+0x4f): undefined reference to cv::Mat::deallocate()' /usr/bin/ld: /tmp/cczkwUbb.o: in function cv::Mat::operator=(cv::Mat&&)':
gfpgan-ncnn-vulkan-demo.cpp:(.text.ZN2cv3MataSEOS0[ZN2cv3MataSEOS0]+0xeb): undefined reference to `cv::fastFree(void*)'
collect2: error: ld returned 1 exit status