Legacy ImageMagick Discussions Archive

Thanks for all the suggestions but there might be something wrong with the Magick.Net implementation.
Even when using Quantum values, if I use ColorCMYK(255, 0, 0, 0) my color comes out red. If I use ColorCMYK(0, 255, 0, 0) my color comes out green. So ColorCMYK() seems to be setting RGB values ...

I cannot make the change in RGB because the color space is much smaller than CMYK.

Iv'e tried


image.TransformColorSpace(ColorProfile.SRGB, ColorProfile.USWebCoatedSWOP);
image.ColorSpace = ColorSpace.CMYK;


These commands should have changed the colorspace, and Photoshop shows the colorspace of the file as CMYK/8.

If I use

MagickColor destColor = new ColorCMYK(255, 0, 0, 0 ...

I have a PNG image generated by a QR code generator that I want to convert to CMYK and change the color.


using (MagickImage image = new MagickImage(inputFile))
{
image.Format = MagickFormat.Jpg;

image.AddProfile(ColorProfile.SRGB);
image.TransformColorSpace(ColorProfile.SRGB, ColorProfile ...