ChannelCombiner Class

Syntax

public class ChannelCombiner : PipelineElement

Remarks

Merging channels into a single image allows the creating of color images by combining several grayscale images. It is useful when, for example, you have 4 grayscale bitmaps prepared for printing (cyan, magenta, yellow, and black) and you need to make a color preview of the resulting image. The easiest way to merge channels into one image is to use one of the following descendant classes:

• RgbChannelCombiner is specified to work with RGB images.
• CmykChannelCombiner is specified to work with CMYK images.
• GrayscaleChannelCombiner is specified to work with grayscale images containing the alpha channel.

Examples

The following code creates a CMYK image by combining 4 grayscale bitmaps (one bitmap per color channel):

using (var combiner = new CmykChannelCombiner())
using (var writer = new TiffWriter(@"Images\Output\Cmyk_test_combined.tif"))
{
    combiner.C = new TiffReader(@"Images\Cmyk_test_Channel_C.tif");
    combiner.M = new TiffReader(@"Images\Cmyk_test_Channel_M.tif");
    combiner.Y = new TiffReader(@"Images\Cmyk_test_Channel_Y.tif");
    combiner.K = new TiffReader(@"Images\Cmyk_test_Channel_K.tif");
    combiner.AutoDisposeSources = true;
    Pipeline.Run(combiner + writer);
}

Inheritance Hierarchy

Thread Safety

See Also

Reference

• ChannelCombiner Members
• Aurigma.GraphicsMill Namespace

Manual

• Reading and Writing Channels