How to change the skin color of face from the source image in ios?

Question

MY code: How to manage RGB value for differet shades of face,and how to apply? this code will change the color of face along with hair,but i want 1.only face to be colored excl

Answer 1

Try Masking the image ... it will help to change the specific range of colors defined in mask

Code:

- (UIImage *)doctorTheImage:(UIImage *)originalImage
{

   const float brownsMask[6] = {85, 255, 85, 255, 85, 255};


    UIImageView *imageView = [[UIImageView alloc] initWithImage:originalImage];

    UIGraphicsBeginImageContext(originalImage.size);
    CGContextRef context = UIGraphicsGetCurrentContext();

    CGContextSetRGBFillColor (context, 1.0,1.0, 1.0, 1);


    CGContextFillRect(context, CGRectMake(0, 0, imageView.image.size.width, imageView.image.size.height));

    CGImageRef brownRef = CGImageCreateWithMaskingColors(imageView.image.CGImage, brownsMask);

    CGRect imageRect = CGRectMake(0, 0, imageView.image.size.width, imageView.image.size.height);

    CGContextTranslateCTM(context, 0, imageView.image.size.height);
    CGContextScaleCTM(context, 1.0, -1.0);
    //CGImageRef whiteRef = CGImageCreateWithMaskingColors(brownRef, whiteMask);
    CGContextDrawImage (context, imageRect, brownRef);

    //[originalImage drawInRect:CGRectMake(0, 0, imageView.image.size.width, imageView.image.size.height)];

    CGImageRelease(brownRef);
   // CGImageRelease(whiteRef);

    UIImage *doctoredImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return doctoredImage;
}