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Grayscale conversion adds 0.5 to every pixel value

See original GitHub issue

Hi!

I’m having strange results when converting an image to grayscale with the latest version (7.0.7.700). The following simple code demonstrates the problem:

MagickImage img = new MagickImage("pathtoimagefile");
img.Grayscale(PixelIntensityMethod.Average);

If I take look the pixel values a completely black image has values of 0.5 on R, G and B channels. Different PixelIntensityMethods give the same result.

Best regards

Issue Analytics

State:
Created 6 years ago
Comments:11 (5 by maintainers)

Top GitHub Comments

1reaction

dlemstracommented, Mar 11, 2018

@48design Can you give it another try with the latest release?

0reactions

48designcommented, Mar 29, 2018

Sorry, had to stop the project for a while… YES, it works! Thank you very much.

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