PNG automatic image compression
automatic, image, compression, png« lossless » on HC RGBA
original | pingo -auto |
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157.00 KB | 21.71 KB — 0.17s |
« lossless » on LC RGBA
original | pingo -auto |
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339.41 KB | 26.14 KB — 0.12s |
« lossy » on HC RGBA
original | pingo -auto |
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567.48 KB | 122.75 KB — 0.31s |
butteraugli | 3.4608132839 — 3-norm: 1.040871 |
ssimulacra | 0.01204299 |
« lossy » on LC RGBA
original | pingo -auto |
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494.19 KB | 27.68 KB — 0.16s |
butteraugli | 5.9512929916 — 3-norm: 1.684199 |
ssimulacra | 0.00775929 |
« conversion » on HC RGB
original | pingo -auto |
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369.00 KB | 54.60 KB — 0.10s (JPG) |
butteraugli | 2.9461371899 — 3-norm: 1.135771 |
ssimulacra | 0.02684828 |
notes
pingo rc3 (10)pingo -auto target
note that this function could be work in progress and would not always perform as well as demonstrated on any samples. the lossless compression level over this transformation can be increased to get smaller filesize by using -sN
:
pingo flags -sN target
machine test: CPU G1820 2.7Ghz — 1.88GB RAM — Windows 7, 32-bit