iphone - Scaling Images are very slow - Help

Question

I am scaling images by myself using the following codes. The code is fine and the images are scaled without problem.

UIImage *originImg = img;
size = newSiz         


        

Answer 1

You could try either:

CGContextSetInterpolationQuality(context, kCGInterpolationNone);

or

CGContextSetInterpolationQuality(context, kCGInterpolationLow);

and see if either of those produce any performance differences with an acceptable quality level.