I am making an iOS app and I got a UIImage - I want to compress it into .png file and save it to the app's documents folder - I already have the path and all I need is how to convert the UIImage to .png and save it.
Thanks, Matan.
so the code is:
UIImage *yourImage = ...; //the image you have
NSString *targetPath = ...; // something like ~/Library/Documents/myImage.png
[UIImagePNGRepresentation(yourImage) writeToFile:targetPath atomically:YES];
For PNG:
UIImagePNGRepresentation
Returns the data for the specified image in PNG format
NSData * UIImagePNGRepresentation (
UIImage *image
);
If you wanted JPEG instead:
UIImageJPEGRepresentation
Returns the data for the specified image in JPEG format.
NSData * UIImageJPEGRepresentation (
UIImage *image,
CGFloat compressionQuality
);
Image compression form is JPEG you can use different quality of jpg image
// for getting png image
NSData*theImageData=UIImagePNGRepresentation(theImage);
// for JPG compression change fill value between less than 1
NSData*theImageData=UIImageJPEGRepresentation(theImage, 1);
// for converting raw data image to UIImage
UIImage *imageOrignal=[UIImage imageWithData:theImageData];
// for saving in to photos gallery
UIImageWriteToSavedPhotosAlbum(imageOrignal,nil,nil,nil);
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