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Recently, I am doing jobs about Windows clearType text compression; Windows text font use sub-pixel rendering tech which making the text font edge full of mess colors, like below.

enter image description here

I have try the jpeg, zstd, lz4, the compression ratio of them cannot satisfied me ,SO anyone have experience or ideas to compress this type of bitmap, lossy or lossless?

Micho
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haie1011
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  • Please show what commands or code you have tried and what errors are you encountering. – Efren Aug 03 '17 at 05:13
  • PNG lossless should do a decent job due to the font's vertical and horizontal symmetry. You can probably compress it as an 8-bit palette image since there aren't that many unique colors. – BitBank Aug 03 '17 at 14:05

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