How can I convert images to bytes and bytes to image?

Question

How to convert images to bytes and send out to a stream, then receive bytes from the input stream, and convert the bytes into images again?

Answer 1

For getting bytes from an image:

NSData *imageData = UIImageJPEGRepresentation(image, imageQuality);

For getting an image from bytes:

UIImage *image = [UIImage imageWithData: imageData];

BTW, If you need the bytes from the NSData just call its bytes method.