speccy Posted July 26, 2010 Share Posted July 26, 2010 Hi, I want a two-colour image, with pixels being either black or white - nothing in-between. I have a grey-scale image. How do I make all the non-white pixels black? Thanks. Quote Link to comment Share on other sites More sharing options...
Sfifer Posted July 26, 2010 Share Posted July 26, 2010 Change the contrast. That should in theory make your grayscale image all black and white pixels Quote Blog Twitter My Gallery Link to comment Share on other sites More sharing options...
Sarkut Posted July 26, 2010 Share Posted July 26, 2010 Two other options: Threshold Multi-Threshold Quote Link to comment Share on other sites More sharing options...
speccy Posted July 27, 2010 Author Share Posted July 27, 2010 Thanks for the replies. Setting the brightness to -100 and the contrast to 80 did the trick for me. Quote Link to comment Share on other sites More sharing options...
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