diff --git a/Classes/OpenCVTestViewController.m b/Classes/OpenCVTestViewController.m
index 466b32b..6f848ec 100644
--- a/Classes/OpenCVTestViewController.m
+++ b/Classes/OpenCVTestViewController.m
@@ -164,7 +164,9 @@ - (void) opencvFaceDetect:(UIImage *)overlayImage  {
 			[pool release];
 		}
 		
-		imageView.image = [UIImage imageWithCGImage:CGBitmapContextCreateImage(contextRef)];
+        CGImageRef markeredImageRef = CGBitmapContextCreateImage(contextRef);
+        imageView.image = [UIImage imageWithCGImage:markeredImageRef];
+        CGImageRelease(markeredImageRef);
 		CGContextRelease(contextRef);
 		CGColorSpaceRelease(colorSpace);