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copied!<p>Is your goal is to obtain just the exact copy of what you are editing, but with the size of the original image? I guess it could be obtained by something like this:</p> <pre><code>- (UIImage *)padImage:(UIImage *)img to:(CGSize)size { if (size.width < img.size.width && size.height < img.size.height) return img; size.width = MAX(size.width, img.size.width); size.height = MAX(size.height, img.size.height); CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); CGContextRef context = CGBitmapContextCreate(NULL, size.width, size.height, 8, 0, colorSpace, kCGImageAlphaPremultipliedLast); CGRect centeredRect = CGRectMake((size.width - img.size.width)/2.0, (size.height - img.size.height)/2.0, img.size.width, img.size.height); CGContextDrawImage(context, centeredRect, [img CGImage]); CGImageRef imageRef = CGBitmapContextCreateImage(context); CGColorSpaceRelease(colorSpace); CGContextRelease(context); UIImage *paddedImage = [UIImage imageWithCGImage:imageRef]; CGImageRelease(imageRef); return paddedImage; } // final image size must be 640x480 - (void)generateFinalImage { float rotatableCanvasWidth = 495.0; float rotatableCanvasHeight = 320.0; UIImage *tmp = self.importedRawImage; CGSize size = self.importedRawImage.size; NSLog(NSStringFromCGSize(size)); tmp = [self padImage:tmp to:CGSizeMake(rotatableCanvasWidth, rotatableCanvasHeight)]; CIImage *ciImage = [[CIImage alloc] initWithImage:[tmp imageWithTransform:self.importedImageView.transform]]; CGPoint center = CGPointMake(size.width / 2.0, size.height / 2.0); CIContext *context = [CIContext contextWithOptions:nil]; CGRect r = ciImage.extent; r.origin.x = (r.size.width - rotatableCanvasHeight) / 2.0; r.origin.y = (r.size.height - rotatableCanvasWidth) / 2.0; r.size.width = rotatableCanvasHeight; r.size.height = rotatableCanvasWidth; self.finalImage = [UIImage imageWithCGImage:[context createCGImage:ciImage fromRect:r] scale:1.0 orientation:UIImageOrientationUp]; self.finalImage = [self.finalImage resizedImage:CGSizeMake(100.0f, 134.0f) interpolationQuality:kCGInterpolationHigh]; self.previewImageView.image = self.finalImage; } </code></pre>

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