- (UIImage*)filteredImage:(UIImage*)image {

        CIImage *ciImage = [[CIImage alloc] initWithImage:image];
        CIFilter *filter = [CIFilter filterWithName:@"CIHighlightShadowAdjust" keysAndValues:kCIInputImageKey, [filter outputImage], nil];
        [filter setDefaults];

        CGFloat luci   = _luciSlider.value;//*_luciSlider.value;
        [filter setValue:[NSNumber numberWithFloat:luci] forKey:@"inputHighlightAmount"];

        CIContext *context = [CIContext contextWithOptions:nil];

        CIImage *outputImage = [filter outputImage];
        CGImageRef cgImage = [context createCGImage:outputImage fromRect:[outputImage extent]];

        UIImage *result = [UIImage imageWithCGImage:cgImage];

        CGImageRelease(cgImage);

        return result;
    }