New Post: Composite Multiply Gray Scaled Images

convert 1.jpg -auto-level output.jpg

using (var image = new ImageMagick.MagickImage("1.jpg"))
{
    image.AutoLevel();
    image.Write("output.jpg");
}

using (var image = new ImageMagick.MagickImage("1.jpg"))
{
    double min = 100 * image.Statistics().Composite().Minimum / Quantum.Max;
    double max = 100 * image.Statistics().Composite().Maximum / Quantum.Max;
    image.Level(new Percentage(min), new Percentage(max));
    image.Write("output.jpg");
}