texture compression

Source:
522M    diffuse.xcf     [gimp, default]
384M    diffuse.psd     [photoshop, default]
326M    diffuse.psd.lz4 [lz4, default]
249M    diffuse.psd.gz  [gzip -9]
238M    diffuse.psd.zip [7z -tzip -mx=9]
236M    diffuse.xcf.lz4 [lz4, default]
171M    diffuse.xcf.bz2 [gimp, default]
171M    diffuse.xcf.bz2 [bzip2 -9]
169M    diffuse.xcf.gz  [gimp, default]
168M    diffuse.xcf.gz  [gzip -9]
100M    diffuse.xcf.7z  [7z -mx=9]
60M     diffuse.psd.7z  [7z -mx=9]

Lossless:
65M     diffuse.tga     [gimp, default]
31M     diffuse.tga     [gimp rle, default]
9,6M    diffuse.png     [gimp, default]
9,5M    diffuse.png.zip [7z -tzip -mx=9]
9,5M    diffuse.png.7z  [7z -mx=9]
9,5M    diffuse.png.bro [bro --quality 9]
9,3M    diffuse.tga.zip [7z -tzip -mx=9]
8,9M    diffuse.tga.bro [bro --quality 9]
8.7M    diffuse.png     [optipng bruteforce, 1 minute run]
7,8M    diffuse.png     [zopfli insane bruteforce, 27 minutes run]
6,4M    diffuse.tga.7z  [7z -mx=9]
5,6M    diffuse.webp    [cwebp, lossless]
5,2M    diffuse.bpg     [bpgenc, lossless]
4,5M    diffuse.flif    [flif, default]

Lossy:
86M     diffuse.ktx     [binomialLLC's crunch, default]
22M     diffuse.dds     [binomialLLC's crunch, default]
2,4M    diffuse.crn     [binomialLLC's crunch, default]
2,1M    diffuse.jpg     [imagemagick, q95]
2,1M    diffuse.jpg     [guetzli default bruteforce, q95, 38 minutes run]
1,5M    diffuse.jpg     [imagemagick, default]
252K    diffuse.webp    [cwebp, default]
136K    diffuse.bpg     [bpgenc, default]