UIImage+CGImagePropertyOrientation

UIImage+CGImagePropertyOrientation.m

@implementation UIImage (CGImagePropertyOrientation)

- (CGImagePropertyOrientation)cgImagePropertyOrientation {
    switch (self.imageOrientation) {
        case UIImageOrientationUp:
            return kCGImagePropertyOrientationUp;
        case UIImageOrientationDown:
            return kCGImagePropertyOrientationDown;
        case UIImageOrientationLeft:
            return kCGImagePropertyOrientationLeft;
        case UIImageOrientationRight:
            return kCGImagePropertyOrientationRight;
        case UIImageOrientationUpMirrored:
            return kCGImagePropertyOrientationUpMirrored;
        case UIImageOrientationDownMirrored:
            return kCGImagePropertyOrientationDownMirrored;
        case UIImageOrientationLeftMirrored:
            return kCGImagePropertyOrientationLeftMirrored;
        case UIImageOrientationRightMirrored:
            return kCGImagePropertyOrientationRightMirrored;
        default:
            return kCGImagePropertyOrientationUp;
    }
}

@end

default is redundant.