jeroen created IMAGING-352:
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             Summary: [PngWriter] Allow custom PaletteFactory
                 Key: IMAGING-352
                 URL: https://issues.apache.org/jira/browse/IMAGING-352
             Project: Commons Imaging
          Issue Type: Improvement
            Reporter: jeroen


There is currently no way to supply a custom Palette when generating an indexed 
PNG file. Allowing this enables users to use different quantization algorithms, 
e.g. Wu's. ( [https://dl.acm.org/doi/pdf/10.1145/146443.146475] / 
[https://gist.github.com/bert/1192520] )



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