Legacy ImageMagick Discussions Archive

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    class Program
    {
        static void Main(string[] args)
        {
            // Definir variables

            byte sigma;
            short radius;
            int originalX;
            int originalY;

            //Reading the file 

            using (MagickImageCollection images = new MagickImageCollection())
            {
                //First image
                MagickImage raw = new MagickImage(@"D:\test01.jpg");
                images.Add(raw);

                // Record original size
                originalX = raw.Width;
                originalY = raw.Height;

                // Gaussian Blur
                Console.WriteLine("Please enter sigma value for Gaussian blur:");
                radius = short.Parse(Console.ReadLine());
                Console.WriteLine("Please enter radius value for Gaussian blur:");
                sigma = byte.Parse(Console.ReadLine());

                    // Speed up
                    raw.Scale(new Percentage(10));
                    raw.GaussianBlur(radius,sigma);
                    raw.Resize(originalX,originalY);

                 // Write
                 raw.Write(@"D:\test01_gaussianblur.jpg");

                 // Second image
                 MagickImage blur = new MagickImage(@"D:\test01_gaussianblur.jpg");
                 images.Add(blur);

                 using (MagickImage flattened = images.Combine(); My doubt is here, how can i perform a subtraction?
             {
                 flattened.Write(@"D:\test01_flattened.jpg");
             }
         }
            Console.ReadLine();
         }
    }
}

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raw.Composite(blur, CompositeOperator.ModulusSubtract);