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QImage : convert 8-bit image to 4-bit image



  • Hi, I would like to convert 8-bit images to 4-bit images to be exploited on older systems that are limited to 16 colors per palette like the Sega Genesis.

    Would you have a method or idea to convert images to 4-bit with QImage?

    thanks in advance



  • A quick scan of the QImage reference shows that for color indexed images 8 bit is the smallest depth supported. If you want to do 4 bit then you will have to read the pixel data from the 8 bit image and use means external to Qt to downsample it.



  • Thanks for your response. :)


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