Write UIImage along with metadata (EXIF, GPS, TIFF) in iPhone's Photo library

Question

I am developing a project, where the requirements are: - User will open the camera through the application - Upon capturing an Image, some data will be appended to the captu

Answer 1

Getting meta data from cam captured image within an application:

UIImage *pTakenImage= [info objectForKey:@"UIImagePickerControllerOriginalImage"];

NSMutableDictionary *imageMetadata = [[NSMutableDictionary alloc] initWithDictionary:[info objectForKey:UIImagePickerControllerMediaMetadata]];

now to save image to library with extracted metadata:

ALAssetsLibrary* library = [[ALAssetsLibrary alloc] init];
[library writeImageToSavedPhotosAlbum:[sourceImage CGImage] metadata:imageMetadata completionBlock:Nil];
[library release];

or want to save to local directory

CGImageDestinationAddImageFromSource(destinationPath,sourceImage,0, (CFDictionaryRef)imageMetadata);