Red Eye Correction - objective-c

Question

To add red eye correction effect, I had followed this link:
How to remove red eye from image in iPhone?
Installed above library via pods. Added following code in my class.
UIImage *redEyeImage = [UIImage imageNamed:#"Userimage"];
if (redEyeImage) {
UIImage *newRemovedRedEyeImage = [redEyeImage redEyeCorrection];
if (newRemovedRedEyeImage) {
imgView.image = newRemovedRedEyeImage;
}
}
but I didn't get the required output. Is there anything I am missing? Or is there any other library to implement this concept. Please suggest.
Thanks!

Answer 1

You could set breakpoints on the lines right after both if statements and then run your app and see if they're being hit (perhaps redEyeImage doesn't exist or newRemovedRedEyeImage doesn't.
Another simple way to check is:
UIImage *redEyeImage;
UIImage *newRemovedRedEyeImage;
redEyeImage = [UIImage imageNamed:#"Userimage"];
if (redEyeImage) {
newRemovedRedEyeImage = [redEyeImage redEyeCorrection];
if (newRemovedRedEyeImage) {
imgView.image = newRemovedRedEyeImage;
}
}
NSLog(#"redEyeImage: %#", (redEyeImage != nil ? #"exists" : #"nil"));
NSLog(#"newRemovedRedEyeImage: %#", (newRemovedRedEyeImage != nil ? #"exists" : #"nil"));
then run this and see what the two logs at the bottom print.

Answer 2

Finally I resolved this issue with following code:
UIImage *img = [UIImage imageNamed:#"images.png"];
CIImage *image = [[CIImage alloc]initWithImage:img];
NSLog(#"after ciimage: %#", kCIImageAutoAdjustEnhance);
NSDictionary *options = [NSDictionary dictionaryWithObject:#"NO" forKey:kCIImageAutoAdjustEnhance];
NSLog(#"options: %#", options);
NSArray *adjustments = [image autoAdjustmentFiltersWithOptions:options];
NSLog(#"adjustments: %# ", adjustments);
for (CIFilter * filter in adjustments)
{
[filter setValue:image forKey:kCIInputImageKey];
image = filter.outputImage;
}
CIContext *context = [CIContext contextWithOptions:nil];
CGImageRef cgImage = [context createCGImage:image fromRect:image.extent];
UIImage *enhancedImage = [[UIImage alloc] initWithCGImage:cgImage];
CGImageRelease(cgImage);
self.img.image = enhancedImage;