WebP compression artifact test
I'll be compressing this one 768×768 image (of a closeup of a Romanesco broccoli, taken by me) at a bunch of WebP quality levels, and for comparison the same JPEG quality levels. All the JPEG images here use 4:2:0 chroma subsampling.
Original image
PNG, lossless compression, 548 496 bytes. (WebP lossless image is 417 206 bytes; you can see it here if you want .)
WebP, quality 90
WebP, quality 90, 48 418 bytes.
Difference between original image and quality-level-90-compressed WebP image.
JPEG at quality level 90
JPEG at quality level 90, 70 628 bytes.
Difference between original image and quality-level-90-compressed JPEG image.
WebP, quality 80
WebP, quality 80, 30 952 bytes.
Difference between original image and quality-level-80-compressed WebP image.
JPEG at quality level 80
JPEG at quality level 80, 46 179 bytes.
Difference between original image and quality-level-80-compressed JPEG image.
WebP, quality 50
WebP, quality 50, 22 016 bytes.
Difference between original image and quality-level-50-compressed WebP image.
JPEG at quality level 50
JPEG at quality level 50, 25 861 bytes.
Difference between original image and quality-level-50-compressed JPEG image.
WebP, quality 30
WebP, quality 30, 18 736 bytes.
Difference between original image and quality-level-30-compressed WebP image.
JPEG at quality level 30
JPEG at quality level 30, 18 247 bytes.
Difference between original image and quality-level-30-compressed JPEG image.
WebP, quality 10
JPEG at quality level 10, 15 652 bytes.
Difference between original image and quality-level-10-compressed WebP image.
JPEG at quality level 10
JPEG at quality level 10, 8334 bytes.
Difference between original image and quality-level-10-compressed JPEG image.
WebP, quality 0
WebP, quality 30, 12 560 bytes.
Difference between original image and quality-level-0-compressed WebP image.
JPEG at quality level 0
JPEG at quality level 30, 4719 bytes.
Difference between original image and quality-level-0-compressed JPEG image.
oatcookies.neocities.org | 2021-02-25