Fixed memory leaks.

Author: kpmaalej

Classes/ImageFilter.m

@@ -84,6 +84,7 @@ - (UIImage*) applyFilter:(FilterCallback)filter context:(void*)context
 	int length = CFDataGetLength(m_DataRef);
 	CFMutableDataRef m_DataRefEdit = CFDataCreateMutableCopy(NULL,length,m_DataRef);
     UInt8 * m_PixelBuf = (UInt8 *) CFDataGetMutableBytePtr(m_DataRefEdit);
+    CFRelease(m_DataRefEdit);
 
 	for (int i=0; i<length; i+=4)
 	{
@@ -425,6 +426,7 @@ - (UIImage*) applyBlendFilter:(FilterBlendCallback)filter other:(UIImage*)other
 	int length = CFDataGetLength(m_DataRef);
 	CFMutableDataRef m_DataRefEdit = CFDataCreateMutableCopy(NULL,length,m_DataRef);
     UInt8 * m_PixelBuf = (UInt8 *) CFDataGetMutableBytePtr(m_DataRefEdit);
+    CFRelease(m_DataRefEdit);
 
 	CGImageRef otherImage = other.CGImage;
 	CFDataRef m_OtherDataRef = CGDataProviderCopyData(CGImageGetDataProvider(otherImage));  
@@ -773,10 +775,12 @@ - (UIImage*) applyConvolve:(NSArray*)kernel
 	int length = CFDataGetLength(m_DataRef);
 	CFMutableDataRef m_DataRefEdit = CFDataCreateMutableCopy(NULL,length,m_DataRef);
     UInt8 * m_PixelBuf = (UInt8 *) CFDataGetMutableBytePtr(m_DataRefEdit);
+    CFRelease(m_DataRefEdit);
 
     int outputLength = CFDataGetLength(m_OutDataRef);
 	CFMutableDataRef m_OutDataRefEdit = CFDataCreateMutableCopy(NULL,outputLength,m_DataRef);
     UInt8 * m_OutPixelBuf = (UInt8 *) CFDataGetMutableBytePtr(m_OutDataRefEdit);
+    CFRelease(m_OutDataRefEdit);
 
 	int h = CGImageGetHeight(inImage);
 	int w = CGImageGetWidth(inImage);
@@ -961,6 +965,7 @@ - (UIImage*) vignette
 	int length = CFDataGetLength(m_DataRef);
 	CFMutableDataRef m_DataRefEdit = CFDataCreateMutableCopy(NULL,length,m_DataRef);
     UInt8 * m_PixelBuf = (UInt8 *) CFDataGetMutableBytePtr(m_DataRefEdit);
+    CFRelease(m_DataRefEdit);
 	memset(m_PixelBuf,0,length);
 
 	CGContextRef ctx = CGBitmapContextCreate(m_PixelBuf,  
@@ -1000,6 +1005,7 @@ - (UIImage*) darkVignette
 	int length = CFDataGetLength(m_DataRef);
 	CFMutableDataRef m_DataRefEdit = CFDataCreateMutableCopy(NULL,length,m_DataRef);
     UInt8 * m_PixelBuf = (UInt8 *) CFDataGetMutableBytePtr(m_DataRefEdit);
+    CFRelease(m_DataRefEdit);
 	memset(m_PixelBuf,0,length);
 
 	CGContextRef ctx = CGBitmapContextCreate(m_PixelBuf,