Cannot remove clipping mask

[hn24]

Hi, not sure it's a bug, but im going to remove my background from my tif file using clipping path.

I found the Windows command from the here and it worked fine:
magick identify -quiet -format "%[8BIM:1999,2998:#1]" image.jpg |^ magick -quiet image.jpg ( - -alpha off -negate -morphology erode diamond:1 -blur 0x1 -level 50x100% ) ^ -alpha off -compose copy_opacity -composite ^ result.png

Also, someone has the same question with me, the code look like does the extract thing that the command do, but it's not work

using (MagickImage image = new MagickImage(bytes))
            {
                using (MagickImage image2 = new MagickImage(image.Clone()))
                {
                    image2.Alpha(AlphaOption.Off);
                    image2.Negate();
                    image2.Morphology(MorphologyMethod.Erode, Kernel.Diamond, 1);
                    image2.Blur();
                    image2.Level(new Percentage(50), new Percentage(100));

                    image.Alpha(AlphaOption.Off);
                    image.Composite(image2, CompositeOperator.CopyAlpha);

                    image.Write(AppDomain.CurrentDomain.BaseDirectory + "\\Image.png");
                }
            }

Just want to convert it to C#, can you help me?
My image: my-image.zip
My expected image:

[dlemstra]

You are very close but the difference here is that you are not reading the clipping path when you clone it. Your command would translate to this:

using (var image = new MagickImage("image.jpg"))
{
    // magick identify -quiet -format "%[8BIM:1999,2998:#1]" \
    var clippingPathData = Encoding.ASCII.GetBytes(image.GetClippingPath());

    // ( - <= The '-' means the image is read from stdin
    using (var clippingPath = new MagickImage(clippingPathData))
    {
        // -alpha off
        clippingPath.Alpha(AlphaOption.Off);

        // -negate
        clippingPath.Negate();

        // -morphology erode diamond:1
        clippingPath.Morphology(MorphologyMethod.Erode, Kernel.Diamond, 1);

        // -blur 0x1
        clippingPath.Blur(Channels.All);

        // -level 50x100% )
        clippingPath.Level(new Percentage(50), new Percentage(100));

        // -alpha off
        image.Alpha(AlphaOption.Off);

        // -compose copy_opacity -composite
        image.Composite(clippingPath, CompositeOperator.CopyAlpha);

        image.Write("result.png");
    }
}

[hn24]

thanks you, it works exactly what i want.