diff --git a/.classpath b/.classpath
index 6c635c0..7bc01d9 100644
--- a/.classpath
+++ b/.classpath
@@ -3,5 +3,7 @@
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="gen"/>
 	<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
+	<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
 	<classpathentry kind="output" path="bin/classes"/>
 </classpath>
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1984168..3e3726e 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -4,7 +4,7 @@
       android:versionCode="1"
       android:versionName="1.0">
 
-    <uses-sdk android:minSdkVersion="5" android:targetSdkVersion="5"/>
+    <uses-sdk android:minSdkVersion="7" android:targetSdkVersion="7"/>
     
     <uses-feature android:name="android.hardware.camera"/>
     <uses-permission android:name="android.permission.CAMERA"/>
diff --git a/project.properties b/project.properties
index 05c1419..5a70945 100644
--- a/project.properties
+++ b/project.properties
@@ -8,4 +8,4 @@
 # project structure.
 
 # Project target.
-target=android-5
+target=android-7
diff --git a/src/com/jwetherell/motion_detection/MotionDetectionActivity.java b/src/com/jwetherell/motion_detection/MotionDetectionActivity.java
index 162edaf..50d1f91 100644
--- a/src/com/jwetherell/motion_detection/MotionDetectionActivity.java
+++ b/src/com/jwetherell/motion_detection/MotionDetectionActivity.java
@@ -239,7 +239,7 @@ public void run() {
                         }
 
                         Bitmap bitmap = null;
-                        if (Preferences.SAVE_CHANGES && img != null) {
+                        if (Preferences.SAVE_CHANGES) {
                             if (Preferences.USE_RGB) bitmap = ImageProcessing.rgbToBitmap(img, width, height);
                             else bitmap = ImageProcessing.lumaToGreyscale(img, width, height);
                         }
diff --git a/src/com/jwetherell/motion_detection/detection/LumaMotionDetection.java b/src/com/jwetherell/motion_detection/detection/LumaMotionDetection.java
index 8f9a085..c1c8d3b 100644
--- a/src/com/jwetherell/motion_detection/detection/LumaMotionDetection.java
+++ b/src/com/jwetherell/motion_detection/detection/LumaMotionDetection.java
@@ -41,8 +41,8 @@ protected static boolean isDifferent(int[] first, int width, int height) {
         int totDifferentPixels = 0;
         for (int i = 0, ij = 0; i < height; i++) {
             for (int j = 0; j < width; j++, ij++) {
-                int pix = (0xff & ((int) first[ij]));
-                int otherPix = (0xff & ((int) mPrevious[ij]));
+                int pix = (0xff & (first[ij]));
+                int otherPix = (0xff & (mPrevious[ij]));
 
                 // Catch any pixels that are out of range
                 if (pix < 0) pix = 0;
diff --git a/src/com/jwetherell/motion_detection/detection/RgbMotionDetection.java b/src/com/jwetherell/motion_detection/detection/RgbMotionDetection.java
index 3a29212..36c9308 100644
--- a/src/com/jwetherell/motion_detection/detection/RgbMotionDetection.java
+++ b/src/com/jwetherell/motion_detection/detection/RgbMotionDetection.java
@@ -42,8 +42,8 @@ protected static boolean isDifferent(int[] first, int width, int height) {
         int totDifferentPixels = 0;
         for (int i = 0, ij = 0; i < height; i++) {
             for (int j = 0; j < width; j++, ij++) {
-                int pix = (0xff & ((int) first[ij]));
-                int otherPix = (0xff & ((int) mPrevious[ij]));
+                int pix = (0xff & (first[ij]));
+                int otherPix = (0xff & (mPrevious[ij]));
 
                 // Catch any pixels that are out of range
                 if (pix < 0) pix = 0;
diff --git a/src/com/jwetherell/motion_detection/image/ImageProcessing.java b/src/com/jwetherell/motion_detection/image/ImageProcessing.java
index 7c375d5..6e08216 100644
--- a/src/com/jwetherell/motion_detection/image/ImageProcessing.java
+++ b/src/com/jwetherell/motion_detection/image/ImageProcessing.java
@@ -112,7 +112,7 @@ public static int[] decodeYUV420SPtoLuma(byte[] yuv420sp, int width, int height)
 
         for (int j = 0, yp = 0; j < height; j++) {
             for (int i = 0; i < width; i++, yp++) {
-                int y = (0xff & ((int) yuv420sp[yp])) - 16;
+                int y = (0xff & (yuv420sp[yp])) - 16;
                 if (y < 0) y = 0;
                 hsl[yp] = y;
             }
@@ -142,7 +142,7 @@ public static int[] decodeYUV420SPtoRGB(byte[] yuv420sp, int width, int height)
         for (int j = 0, yp = 0; j < height; j++) {
             int uvp = frameSize + (j >> 1) * width, u = 0, v = 0;
             for (int i = 0; i < width; i++, yp++) {
-                int y = (0xff & ((int) yuv420sp[yp])) - 16;
+                int y = (0xff & (yuv420sp[yp])) - 16;
                 if (y < 0) y = 0;
                 if ((i & 1) == 0) {
                     v = (0xff & yuv420sp[uvp++]) - 128;