Legacy ImageMagick Discussions Archive

Code: Select all

convert image001.tif +repage \
\( -clone 0 -scale x1! -scale 321x522! -auto-level -threshold 55% -negate \) \
\( -clone 1 \) \
-compose over -composite \
\( -clone 0 -scale 1x! -scale 321x522! -auto-level -threshold 55% -negate \) \
\( -clone 1 \) \
-compose over -composite result1.tiff

Code: Select all

convert image001.tif +repage \
\( -clone 0 -scale x1! -scale 321x522! -auto-level -threshold 50% -morphology erode diamond:2 -negate \) \
\( -clone 1 \) \
-compose over -composite \
\( -clone 0 -scale 1x! -scale 321x522! -auto-level -threshold 50% -morphology erode diamond:2 -negate \) \
\( -clone 1 \) \
-compose over -composite result2:

Code: Select all

private static void RemoveLines(MagickImage original, MagickImage image, string geometryValue)
{
	// -scale x1! and -scale 1x!
	image.Scale(new MagickGeometry(geometryValue));

	// -scale 321x522! (resize to original width/height)
	MagickGeometry geometry = new MagickGeometry(original.Width, original.Height);
	geometry.IgnoreAspectRatio = true;
	image.Scale(geometry);

	image.AutoLevel(); // -auto-level
	image.Threshold(50); // -threshold 50%
	image.Morphology(MorphologyMethod.Erode, Kernel.Diamond, 2); // -morphology erode diamond:2

	// ( -clone 1 )
	using (MagickImage clone = image.Clone())
	{
		image.Negate(); // -negate (this needs to be done after the clone in Magick.NET)

		// -compose over -composite (one of the images is used as a clipmask because there are 3 images)
		image.ClipMask = clone.Clone();
		image.Composite(original, Gravity.Center);
		image.ClipMask = null;
	}
}

public static void RemoveLines()
{
	using (MagickImage image = new MagickImage("image001.tif")) // image001.tif
	{
		image.RePage(); // +repage

		using (MagickImage original = image.Clone())
		{
			using (MagickImage firstClone= original.Clone()) // -clone 0
			{
				RemoveLines(original, firstClone, "x1!"); // -scale x1!
				using (MagickImage secondClone = firstClone.Clone()) // -clone 0
				{
					RemoveLines(secondClone , firstClone, "1x!"); // -scale x1!
					firstClone.Write("result2.tiff");
				}
			}
		}
	}
}