174f36ad8f
If no palette reduction occurred (or palette reductions were off), a fully transparent palette entry may not have been zeroed to black. By ensuring this gets cleaned in the `indexed_to_channels` transformation, we may able to achieve a grayscale conversion that would otherwise have been RGB. This is the final piece of the puzzle in #649 to achieve better file sizes on the first run and avoid further changes on a second run. Results from the images in #649 (combining this PR and #673): 9.1.3 1st run: 2,191,773 9.1.3 2nd run: 2,191,629 PR 1st run: 2,191,380 PR 2nd run: 2,191,380 |
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| .. | ||
| deflate.rs | ||
| filters.rs | ||
| interlacing.rs | ||
| reductions.rs | ||
| strategies.rs | ||
| zopfli.rs | ||