For example, I can convert the second image into NSData and then place it inside metadata inside the first image and then when I open the first image and read the metadata I can get the NSData and tur
This question already has answers here: How to create a colored 1x1 UIImage on the iPhone dynamically?
I need to add EXIF metadata to a UIImage taken either from the camera or an album, then save the image to an album. How can I do this?
For example the Exif standard has a \"User Comment\" tag that has a limit of 256 characters I believe.
I have an UIImage* loadedPoofSprite which I initialize like so: NSMutableDictionary* loadedDictionary=[NSDictionary dictionaryWithContentsOfFile:[NSString stringWithFormat:@\"%@/%@\",Main_Bundle_Path
I need to populate a number of UIImageView instances (about 10) with UIImage instances from ALAssets. I don\'t want to lock up the main thread while doing that so want to do as much as possible in a b
I am trying to figure out how I can shrink and save a UIImage, read it back in later, and then convert back to the original size without losing quality. I have managed to do the resizing and saving, b
I want to get images from UIImagePickerControllerSourceTypePhotoLibrary, before choosing the image from image library, i want to know the memory size of that particular image . I\'m using
I understand how to programmatically load images for my app from a URL ins开发者_如何学运维tead of packaging them within the app but how do I handle the 1x vs 2x issue? I can serve both versions from
For an ios app I\'m writing, I\'d like to take an photo from the photo library and then let the user \"clean it up\", essentially deleting parts of it that are not needed. For example, suppose the use
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