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595f5a1b71
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5008 Commits

Author SHA1 Message Date
John Cupitt
595f5a1b71 make autosubsample more consistent 
always disable subsample for Q>=90, and update docs too
 2021-03-27 15:16:38 +00:00
John Cupitt
a16c0c0d78 set mct more carefully 2021-03-23 18:50:39 +00:00
John Cupitt
40c020ccd2 more jp2k tests 2021-03-23 17:15:02 +00:00
John Cupitt
d69512c8b0 fix lossless save, ycc load 2021-03-23 16:43:09 +00:00
John Cupitt
1936ca05ee add ycc load/save and chroma subsample 2021-03-23 14:01:17 +00:00
John Cupitt
24f230b67d add ycc and upsample support 2021-03-21 19:34:02 +00:00
John Cupitt
fb6891d02b typo in header 2021-03-20 14:22:06 +00:00
John Cupitt
cedc3f1f1d disable threading for older openjpegs 2021-03-20 14:14:08 +00:00
John Cupitt
76b7cddba1 better rounding in tile calcs 2021-03-20 12:54:32 +00:00
John Cupitt
7a900e0a4e add vipsthumbnail support for jp2k 
It'll use the jp2k pyramid, if possible.
 2021-03-20 12:33:38 +00:00
John Cupitt
28cbdcc65d revise doc comments 2021-03-20 12:23:00 +00:00
John Cupitt
2575d963bd add jp2k tests 
and buffer load/save
 2021-03-20 12:16:10 +00:00
John Cupitt
74d2472966 add jp2k quality options 2021-03-20 11:55:42 +00:00
John Cupitt
40ece64ff7 added 32-bit support 
issues remaining:

- params for compression ratio, chrominance subsampling, etc. ...  imagemagick
  jp2 files are half the size of ours https://imagemagick.org/script/jp2.php

- metadata, eg. icc profile etc.

- alpha channels do not seem to be tagged correctly

- tests
 2021-03-19 14:37:52 +00:00
John Cupitt
454f448c5b add jp2ksave 
works, but not quite done
 2021-03-19 11:49:07 +00:00
John Cupitt
1bcaab00a6 use "page" param for jp2k pyr layers 
should make it easy for thumbnail etc.
 2021-03-18 16:16:46 +00:00
John Cupitt
197239727d add shrink on load 
though openjpeg seems very unreliable if you actually use this
 2021-03-18 12:46:30 +00:00
John Cupitt
52e32dec19 fix tiled read 2021-03-18 09:52:38 +00:00
John Cupitt
c0ec1757cb works at a basic level 
need to add shrink-on-load etc.
 2021-03-17 16:38:55 +00:00
John Cupitt
c2eebacf5a start adding jp2k load 2021-03-17 11:31:25 +00:00
John Cupitt
8d6f90c060 Merge branch '8.10' 2021-03-14 11:03:40 +00:00
Kleis Auke Wolthuizen
62b0939c4b vips2webp: force low duration frames to 100ms 2021-03-13 22:04:37 +01:00
John Cupitt
fc4ad15f97 Merge branch '8.10' 2021-03-07 12:26:24 +00:00
Kleis Auke Wolthuizen
3ed50e0427 Cleanup configure.ac and #ifdef's 2021-03-06 15:47:07 +01:00
John Cupitt
6666b941bf fix a ref leak in vipsthumbnail 
from the previous refactoring
 2021-03-06 13:33:00 +00:00
John Cupitt
2e56828053 Merge branch '8.10' 2021-03-06 11:47:02 +00:00
John Cupitt
0623a05f48 remove vips_recip() 
it wasn't really necessary, and it was rather slow
 2021-03-05 20:19:05 +00:00
John Cupitt
a4d89b852a Merge branch '8.10' into revise-premultiply 2021-03-05 12:17:20 +00:00
John Cupitt
b14bac53a3 guard refs to ZSTD 
so we work on older libtiffs
 2021-03-05 12:16:38 +00:00
John Cupitt
6db234fae8 Merge branch 'revise-premultiply' of github.com:libvips/libvips into revise-premultiply 2021-03-05 11:24:14 +00:00
John Cupitt
726fded66c formatting 2021-03-05 11:24:00 +00:00
John Cupitt
1f18963cb4
Merge branch '8.10' into revise-premultiply 2021-03-05 11:17:40 +00:00
John Cupitt
9585feb5a8 allow thumbnail colourspace export with no import 
allow this case:

	vipsthumbnail k2.jpg --export-profile cmyk

for an image with no embedded profile
 2021-03-05 11:11:49 +00:00
John Cupitt
c4d56fd475 Merge branch 'revise-premultiply' of github.com:libvips/libvips into revise-premultiply 2021-03-05 10:46:21 +00:00
John Cupitt
ef4f95cddc cleanup for Kleis comments 2021-03-05 10:46:06 +00:00
John Cupitt
ea2264ea2e
Update libvips/resample/thumbnail.c 
Co-authored-by: Kleis Auke Wolthuizen <github@kleisauke.nl>
 2021-03-05 10:44:31 +00:00
John Cupitt
495b54dfcf grou predictor settings 2021-03-04 17:31:08 +00:00
AdiosF6F
4d0252f31c
add tiff zstd predictor support 2021-03-04 22:38:47 +08:00
John Cupitt
86a6fd9d18 fix tiff deflate predictor setting 
the enums were mixed up, thanks Adios

see https://github.com/libvips/libvips/issues/2128
 2021-03-04 09:39:50 +00:00
John Cupitt
0407c365d1 better again 2021-02-27 20:47:29 +00:00
John Cupitt
e1fc576252 back to srgb/b-w processing space 
for compat in thumbnail behaviour
 2021-02-27 16:34:50 +00:00
John Cupitt
303513e52d small comment polish 2021-02-27 16:00:33 +00:00
John Cupitt
d3ccadf212 revise unpremultiply, again 
We were not detecting division by zero carefully enough, nor clipping
the alpha range sufficiently in unpremultiply.

see https://github.com/libvips/libvips/issues/1941

also see https://github.com/libvips/libvips/pull/1675 for another
difficult test case
 2021-02-27 15:16:25 +00:00
John Cupitt
dd57463c9a
Merge pull request #2119 from lovell/compress-profiles 
Compress fallback colour profiles with zlib (zopfli, via pigz)
 2021-02-26 23:29:30 +00:00
Lovell Fuller
40c4b93ee5 Compress fallback profiles with zlib 
Reduces binary size by 580KB, ~17% at -O2
 2021-02-26 19:18:49 +00:00
Lovell Fuller
117dbd888a Set minimum glib dependency version of 2.40 (March 2014) 2021-02-24 21:59:21 +00:00
John Cupitt
3c60e9de60 start tinkering 2021-02-24 14:48:50 +00:00
John Cupitt
44688e2702 fix int overflow in vips_region_copy 
this could cause crashes with very wide images, see:

https://github.com/libvips/libvips/issues/1989
 2021-02-22 10:03:10 +00:00
John Cupitt
fee6a8a52b fix int overflow in vips_region_copy 
this could cause crashes with very wide images, see:

https://github.com/libvips/libvips/issues/1989
 2021-02-22 10:02:03 +00:00
John Cupitt
eacef0799a mapim nan-avoidance was not quite right 
fix the nan-avoidance code in mapim
 2021-02-22 09:37:35 +00:00