问题
I'm building an Iphone app that needs to convert a UIImage to a CGImageRef. I have no idea how to do this and would love some help. I have no background in working with images... :)
回答1:
It is as simple as image.CGImage where image is a UIImage object.
回答2:
CGImageRef cgImage = [someImage CGImage];
回答3:
write folowing to get CGImage from UIImage: Suppose u have an UIImage object ex imageObject then,
CGImage imageRef = imageObject.CGImage
来源：https://stackoverflow.com/questions/6067307/uiimage-cgimageref