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Summary:
Using UIImageJPEGRepresentation to convert a UIImage produces a magenta cast/tint in the shadow area of images.

Side by side comparison between a file modified on another device and a file saved as a jpg on a 5S. The 5S appears to save the file with a slight color tint. This may be due to a color profile influencing this code:
    NSData *data = UIImageJPEGRepresentation(image, 1.0);
    [data writeToURL:outputURL atomically:YES];

Steps to Reproduce:
NSFileManager *defaultManager = [NSFileManager defaultManager];
NSURL *docsURL = [[defaultManager URLsForDirectory:NSDocumentDirectory
                                             inDomains:NSUserDomainMask] lastObject];
NSURL *outputURL = [docsURL URLByAppendingPathComponent:@"new.jpg"];

UIImage *image = [UIImage imageNamed:@"gray.jpg"];
NSData *data = UIImageJPEGRepresentation(image, 1.0);
[data writeToURL:outputURL atomically:YES];

UIImage *newImage = [UIImage imageWithContentsOfFile:[outputURL path] ];

imageView.image = image;
imageView2.image = newImage;
        
        UIImage *newImage = [UIImage imageWithData:imageData];

        NSData *jpegData = UIImageJPEGRepresentation(newImage, 1.0);
        [jpegData writeToFile:filePath atomically:YES];

Expected Results:
that the two images be identical visually and in the file system

Actual Results:
new.jpg has a magenta cast/tint

Version:
iOS 7.0.x iPhone 5s

Notes:


Configuration:


Attachments:
'gray.jpg' was successfully uploaded.