Mathis/sharp
1
0
Fork 0
mirror of https://github.com/lovell/sharp.git synced 2025-12-19 15:25:07 +01:00
Code Issues Packages Projects Releases Wiki Activity

Docs: clarify JPEG quality/chromaSubsampling interdependence

Browse Source
This commit is contained in:
Lovell Fuller
2020-03-26 20:22:47 +00:00
parent 8bd8709f2b
commit ecd01afad3
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/output.js
View File

@@ -183,7 +183,7 @@ function toFormat (format, options) {
* @param {Object} [options] - output options
* @param {Number} [options.quality=80] - quality, integer 1-100
* @param {Boolean} [options.progressive=false] - use progressive (interlace) scan
* @param {String} [options.chromaSubsampling='4:2:0'] - set to '4:4:4' to prevent chroma subsampling when quality <= 90
* @param {String} [options.chromaSubsampling='4:2:0'] - for quality < 90, set to '4:4:4' to prevent chroma subsampling otherwise defaults to '4:2:0' (use chroma subsampling); for quality >= 90 chroma is never subsampled
* @param {Boolean} [options.trellisQuantisation=false] - apply trellis quantisation, requires libvips compiled with support for mozjpeg
* @param {Boolean} [options.overshootDeringing=false] - apply overshoot deringing, requires libvips compiled with support for mozjpeg
* @param {Boolean} [options.optimiseScans=false] - optimise progressive scans, forces progressive, requires libvips compiled with support for mozjpeg