Can I edit the pixels of the UIImage's property CGImage

Question

UIImage has a read-only property CGImage. I have to read its pixels to a memory block and edit them and then make a new UIImage to replace the old one. I want to know if th

Answer 1

This may help you out.

When you're done, you can use CGImageCreate to create a CGImageRef, then use +[UIImage imageWithCGImage:] to create a new UIImage.