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Merged
SeriousBug merged 1 commit into from
Aug 9, 2026
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Revert "Let readers click a chart to open it full size" #16

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8 changes: 4 additions & 4 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -48,10 +48,10 @@ Effort is the knob to reach for either way. The figure below is every setting of
every encoder: pick the time and size you want, then read the setting off the
point.

[![Time vs file size at each effort level: one line per encoder through its effort settings, with encode time on the x axis and output size or PSNR on the y axis](benchmark/charts/effort-sweep-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/effort-sweep-photos-light.svg)
[![Time vs file size at each effort level: one line per encoder through its effort settings, with encode time on the x axis and output size or PSNR on the y axis](benchmark/charts/effort-sweep-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/effort-sweep-photos-dark.svg)
[![Peak memory per megapixel for each engine, one panel per mode and machine](benchmark/charts/peak-memory-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/peak-memory-photos-light.svg)
[![Peak memory per megapixel for each engine, one panel per mode and machine](benchmark/charts/peak-memory-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/peak-memory-photos-dark.svg)
![Time vs file size at each effort level: one line per encoder through its effort settings, with encode time on the x axis and output size or PSNR on the y axis](benchmark/charts/effort-sweep-photos-light.svg#gh-light-mode-only)
![Time vs file size at each effort level: one line per encoder through its effort settings, with encode time on the x axis and output size or PSNR on the y axis](benchmark/charts/effort-sweep-photos-dark.svg#gh-dark-mode-only)
![Peak memory per megapixel for each engine, one panel per mode and machine](benchmark/charts/peak-memory-photos-light.svg#gh-light-mode-only)
![Peak memory per megapixel for each engine, one panel per mode and machine](benchmark/charts/peak-memory-photos-dark.svg#gh-dark-mode-only)

Those figures are for encoding. For decoding, the comparison to make is
`golang.org/x/image/webp`, which decodes but does not encode. We are faster than
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40 changes: 20 additions & 20 deletions benchmark/results.md
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Expand Up @@ -282,37 +282,37 @@ One set of figures per corpus, regenerated from the tables below with

### photos

[![Time vs file size at each effort level, photos corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine and settings that are off the size axis marked on the frame](charts/effort-sweep-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/effort-sweep-photos-light.svg)
[![Time vs file size at each effort level, photos corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine and settings that are off the size axis marked on the frame](charts/effort-sweep-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/effort-sweep-photos-dark.svg)
![Time vs file size at each effort level, photos corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine and settings that are off the size axis marked on the frame](charts/effort-sweep-photos-light.svg#gh-light-mode-only)
![Time vs file size at each effort level, photos corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine and settings that are off the size axis marked on the frame](charts/effort-sweep-photos-dark.svg#gh-dark-mode-only)

[![Size and quality against libwebp on the photos corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/rate-distortion-photos-light.svg)
[![Size and quality against libwebp on the photos corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/rate-distortion-photos-dark.svg)
![Size and quality against libwebp on the photos corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-photos-light.svg#gh-light-mode-only)
![Size and quality against libwebp on the photos corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-photos-dark.svg#gh-dark-mode-only)

[![Encode time per image for each engine on the photos corpus, one panel per mode and machine, with bars that run off the panel drawn fading out under an arrow](charts/encode-time-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/encode-time-photos-light.svg)
[![Encode time per image for each engine on the photos corpus, one panel per mode and machine, with bars that run off the panel drawn fading out under an arrow](charts/encode-time-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/encode-time-photos-dark.svg)
![Encode time per image for each engine on the photos corpus, one panel per mode and machine, with bars that run off the panel drawn fading out under an arrow](charts/encode-time-photos-light.svg#gh-light-mode-only)
![Encode time per image for each engine on the photos corpus, one panel per mode and machine, with bars that run off the panel drawn fading out under an arrow](charts/encode-time-photos-dark.svg#gh-dark-mode-only)

[![Decode time per image for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure, with x/image added](charts/decode-time-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/decode-time-photos-light.svg)
[![Decode time per image for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure, with x/image added](charts/decode-time-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/decode-time-photos-dark.svg)
![Decode time per image for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure, with x/image added](charts/decode-time-photos-light.svg#gh-light-mode-only)
![Decode time per image for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure, with x/image added](charts/decode-time-photos-dark.svg#gh-dark-mode-only)

[![Peak memory per megapixel for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure](charts/peak-memory-photos-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/peak-memory-photos-light.svg)
[![Peak memory per megapixel for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure](charts/peak-memory-photos-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/peak-memory-photos-dark.svg)
![Peak memory per megapixel for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure](charts/peak-memory-photos-light.svg#gh-light-mode-only)
![Peak memory per megapixel for each engine on the photos corpus, one panel per mode and machine, on the same bar layout as the encode time figure](charts/peak-memory-photos-dark.svg#gh-dark-mode-only)

### transparent

[![Time vs file size at each effort level, alpha corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine](charts/effort-sweep-transparent-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/effort-sweep-transparent-light.svg)
[![Time vs file size at each effort level, alpha corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine](charts/effort-sweep-transparent-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/effort-sweep-transparent-dark.svg)
![Time vs file size at each effort level, alpha corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine](charts/effort-sweep-transparent-light.svg#gh-light-mode-only)
![Time vs file size at each effort level, alpha corpus: one line per engine through its effort settings, with encode time on the x axis and output size or mean PSNR on the y axis, three panels per machine](charts/effort-sweep-transparent-dark.svg#gh-dark-mode-only)

[![Size and quality against libwebp on the alpha corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-transparent-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/rate-distortion-transparent-light.svg)
[![Size and quality against libwebp on the alpha corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-transparent-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/rate-distortion-transparent-dark.svg)
![Size and quality against libwebp on the alpha corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-transparent-light.svg#gh-light-mode-only)
![Size and quality against libwebp on the alpha corpus: one point per test image, with output size relative to libwebp on the x axis and PSNR difference on the y axis, faceted by lossy mode](charts/rate-distortion-transparent-dark.svg#gh-dark-mode-only)

[![Encode time per image for each engine on the alpha corpus, one panel per mode and machine](charts/encode-time-transparent-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/encode-time-transparent-light.svg)
[![Encode time per image for each engine on the alpha corpus, one panel per mode and machine](charts/encode-time-transparent-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/encode-time-transparent-dark.svg)
![Encode time per image for each engine on the alpha corpus, one panel per mode and machine](charts/encode-time-transparent-light.svg#gh-light-mode-only)
![Encode time per image for each engine on the alpha corpus, one panel per mode and machine](charts/encode-time-transparent-dark.svg#gh-dark-mode-only)

[![Decode time per image for each engine on the alpha corpus, one panel per mode and machine, with x/image added](charts/decode-time-transparent-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/decode-time-transparent-light.svg)
[![Decode time per image for each engine on the alpha corpus, one panel per mode and machine, with x/image added](charts/decode-time-transparent-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/decode-time-transparent-dark.svg)
![Decode time per image for each engine on the alpha corpus, one panel per mode and machine, with x/image added](charts/decode-time-transparent-light.svg#gh-light-mode-only)
![Decode time per image for each engine on the alpha corpus, one panel per mode and machine, with x/image added](charts/decode-time-transparent-dark.svg#gh-dark-mode-only)

[![Peak memory per megapixel for each engine on the alpha corpus, one panel per mode and machine](charts/peak-memory-transparent-light.svg#gh-light-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/peak-memory-transparent-light.svg)
[![Peak memory per megapixel for each engine on the alpha corpus, one panel per mode and machine](charts/peak-memory-transparent-dark.svg#gh-dark-mode-only)](https://raw.githubusercontent.com/SeriousBug/webp-go-pure/main/benchmark/charts/peak-memory-transparent-dark.svg)
![Peak memory per megapixel for each engine on the alpha corpus, one panel per mode and machine](charts/peak-memory-transparent-light.svg#gh-light-mode-only)
![Peak memory per megapixel for each engine on the alpha corpus, one panel per mode and machine](charts/peak-memory-transparent-dark.svg#gh-dark-mode-only)

## arm64 (Apple M4 Pro) / photos

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