Comments (1)
The alpha cleaning performed by zopflipng has been analyzed here:
http://encode.ru/threads/1717-ZopfliPNG?p=33102&viewfull=1#post33102
You can now try different ways to clean alpha (what cryopng did) inside zopflipng:
http://encode.ru/threads/1260-CryoPNG-short-introduction
use the new option --alpha_cleaner to try different cleaning methods (based on reversed PNG filtering)
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Related Issues (20)
- how to working in iOS? HOT 1
- Do not emit compressed files larger than the input
- Add lgtm to the repo and fix its issues
- better cmake build
- compiler warnings
- Order of colors in PLTE not kept anymore
- Zopflipng picks up crc errors in input files, offers to disable checks, but no crc check disable switch found
- Null Dereference
- Would you please describe the zopfli block-splitting heuristic? HOT 1
- using `--lossy_transparent` option sometimes results in higher file size
- Incorrect ZopfliPNG static library build rule
- verification of result failed HOT 1
- Time for a new release? HOT 2
- Document ZopfliDeflate parameters
- Assertion failed on ZopfliCalculateBitLengths at zopfli/src/zopfli/tree.c:100
- unnecessary `else` statement.
- Android
- OSS-Fuzz issue 57919
- katajainen.c has executable flag
- "Invalid filename" successful
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