CGSize imageSize = [imageView.image size];
  CGRect imageExtent = CGRectMake(0,0,imageSize.width,imageSize.height);

  // Create a context containing the image.
  UIGraphicsBeginImageContext(imageSize);
  CGContextRef context = UIGraphicsGetCurrentContext();
  [imageView.image drawAtPoint:CGPointMake(0, 0)];

  // Draw the hue on top of the image.
  CGContextSetBlendMode(context, kCGBlendModeHue);
  [color set];

  UIBezierPath *imagePath = [UIBezierPath bezierPathWithRect:imageExtent];
  [imagePath fill];

  // Retrieve the new image.
  UIImage *result = UIGraphicsGetImageFromCurrentImageContext();
  imageView.image= result;

  UIGraphicsEndImageContext();