On 3/24/21 6:20 AM, William F Pokorny wrote:

> There, though, I've since found some issues in the ppm/png formats (of 
> v3.8) if using other than linear encoding/decoding of those images. 
> Still not sorted everything with png and it's the format I'd most want 
> to use due the non-lossy compression.
> 
> Anyway... Onward! :-)
> 
> Bill P.

Thought I'd check Warp's site - it's defunct.
archive.org has a snapshot.
He's got a git
https://github.com/WarpRules/WPngImage

Maybe you'd be interested in that library - might hold some clues.

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