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#1 Posted : Thursday, January 23, 2020 4:59:02 PM(UTC)
Matthew Bresson

Groups: Registered, Tech Support, Administrators
Posts: 105

Was thanked: 3 time(s) in 3 post(s)

When using the LoadCmykPlanes method, the image will load each plane onto a separate page. When running some image processing commands you need to run the command on each plane of the CMYK image. For more information on how to handle CMYK images see the below link:

Attached is a simple .NET Framework console application showcasing how to run image processing commands on a CMYK color space image.

Here are the relevant code snippets:


         // Load CMYK Image
         _image = _codecs.LoadCmykPlanes(sourceFile, 8, 1);

         for (int i = 1; i <= _image.PageCount; i++)
            _image.Page = i;

            RotateCommand command = new RotateCommand();
            command.Angle = 90 * 100;
            command.FillColor = new RasterColor(255, 255, 255);
            command.Flags = RotateCommandFlags.Resize;

         _codecs.SaveCmykPlanes(_image, destFile, RasterImageFormat.JpegCmyk422, 0, 1, CodecsSavePageMode.Overwrite);

File Attachment(s):
v20_PreProcessingCMYKImages.zip (158kb) downloaded 30 time(s).
Matt Bresson
Developer Support Engineer
LEAD Technologies, Inc.

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