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70d76117bd
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2026 Commits

Author SHA1 Message Date
John Cupitt
70d76117bd Merge branch 'master' of github.com:libvips/libvips 2021-05-02 18:47:02 +01:00
John Cupitt
03f76b73b4 add "premultiply" param to tiffsave 
Some programs, like indesign, only work with premultiplied alpha in TIFF. To
make TIFFs which are compatible with these programs, we'll need an extra
TIFF save flag (perhaps premultiply?) to premultiply alpha and save as
EXTRASAMPLE_ASSOCALPHA.

see https://github.com/libvips/libvips/issues/2192
 2021-05-01 20:08:06 +01:00
John Cupitt
56e0b2c2c8 Merge branch '8.10' 2021-04-30 08:27:32 +01:00
John Cupitt
a560d7df50 better vips7 compat 
revise the vips7 PNG wrapper to work with libspng, though performance
may be poor

thanks SkyDiverCool

https://github.com/libvips/libvips/issues/2233
 2021-04-30 08:20:19 +01:00
John Cupitt
edcdf8af70 rebase add-jp2ktiff on master 2021-04-26 15:16:20 +01:00
John Cupitt
e5405c8ef3 udpate changelog 2021-04-26 09:11:02 +01:00
John Cupitt
e8cfc6b5a2
Merge branch 'master' into add-jxl 2021-04-21 14:00:06 +01:00
John Cupitt
693bc3ccbf
Merge branch 'master' into add-black-point-compensation 2021-04-19 18:53:35 +01:00
John Cupitt
4483a2edbc Merge branch 'master' into add-jxl 2021-04-14 15:08:46 +01:00
John Cupitt
f53959b824 switch font rendering to pangocairo 
to make colour font rendering work
 2021-04-12 15:11:18 +01:00
John Cupitt
209f2c5144 tidy up 2021-04-03 18:40:21 +01:00
John Cupitt
005360dba7 add support for lcms black point compensation 
Add a --black-point-compensation flag.

See https://github.com/libvips/libvips/discussions/2169
 2021-03-29 12:41:02 +01:00
John Cupitt
fd56067f54 oop, left gifload.c in the merge 2021-03-27 15:39:29 +00:00
John Cupitt
69fcf1b9e9
Merge branch 'master' into add-openjpeg 2021-03-27 15:22:13 +00:00
John Cupitt
6ab30ca732 Merge branch '8.10' 2021-03-23 23:18:48 +00:00
John Cupitt
2df5768d99 note vector fix in changelog 2021-03-23 20:53:06 +00:00
John Cupitt
2575d963bd add jp2k tests 
and buffer load/save
 2021-03-20 12:16:10 +00:00
John Cupitt
454f448c5b add jp2ksave 
works, but not quite done
 2021-03-19 11:49:07 +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
fc4ad15f97 Merge branch '8.10' 2021-03-07 12:26:24 +00:00
John Cupitt
ec16c761df revise changelog for clarity 2021-03-06 12:56:35 +00:00
John Cupitt
2e56828053 Merge branch '8.10' 2021-03-06 11:47:02 +00:00
John Cupitt
1f18963cb4
Merge branch '8.10' into revise-premultiply 2021-03-05 11:17:40 +00:00
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
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
e5e2e8d1eb Merge branch '8.10' 2021-02-22 10:06:43 +00:00
John Cupitt
ec67002493 update changelog 2021-02-22 10:06:14 +00:00
John Cupitt
8dc2db9789 add gif background colour as metadata 2021-02-20 04:52:02 +00:00
John Cupitt
d6201fc32d note PNG background colour in metadata 
see https://github.com/libvips/libvips/issues/2111
 2021-02-19 16:51:46 +00:00
John Cupitt
4f762d6609 add vips_niftiload_source() 2021-02-12 15:29:58 +00:00
John Cupitt
498e9c2829 add fitsload_source 
and fix some small fits loading issues
 2021-02-11 16:44:53 +00:00
John Cupitt
15f4d935aa Merge branch '8.10' 2021-02-09 16:23:46 +00:00
John Cupitt
75959ece6a note librsvg change 2021-02-09 16:23:13 +00:00
John Cupitt
b30a90e3bc fix includes of glib headers in C++ 
see https://github.com/libvips/libvips/issues/1987
 2021-02-09 16:21:56 +00:00
John Cupitt
1f4f975e7d make leak test exit with an error code 
and run the libvips leak test in CI
 2021-02-08 11:25:56 +00:00
John Cupitt
4605ad6993 fix another ref leak in globalbalance 2021-02-06 19:01:26 +00:00
John Cupitt
2ce79d76a0 output double histogranms for large images 
since images with more than 2*32 pixels will overflow a uint accumulator

thanks @erdmann

see https://github.com/libvips/libvips/issues/1976
 2021-02-01 15:51:31 +00:00
John Cupitt
29599e00eb avoid NaN in mapim 
We were not avoiding NaN in float transform images, leading to segvs in
some cases.

Thanks afontenot

see https://github.com/libvips/libvips/issues/1971
 2021-01-30 15:17:25 +00:00
John Cupitt
d8ed630d77 better 8/16 bit casting for pngsave 
pngsave was just using the image format to decide whether to save as 8
or 16 bit PNG. With this patch it checks Type as well.

This means that eg. a uint32 image tagged as sRGB will save as png8, but
a uint32 image tagged as RGB16 will save as png16.
 2021-01-16 15:45:59 +00:00
John Cupitt
3cd774a10c add fast path to rank filter for uchar images 
around 10x faster for 20x20 windows, the same speed for 3x3
 2021-01-12 20:36:13 +00:00
John Cupitt
0be1370661 Merge branch '8.10' 2021-01-05 03:57:06 +00:00
John Cupitt
e1a9397c15 better error detection in spngload 
Do a speculative spng_get_trns() in header read to force all chunks to
be parsed.

Thanks randy408

See https://github.com/randy408/libspng/issues/145#issuecomment-744495084
 2021-01-05 03:54:48 +00:00
John Cupitt
5d229e0b9e update changelog 
ooops, forgot
 2021-01-02 17:48:26 +00:00
John Cupitt
6fb7ca73a4 Merge branch '8.10' 2021-01-01 10:13:12 +00:00
John Cupitt
42af1cec36 add vipsload_source 
plus small openslideload_source fixes
 2020-12-31 19:47:36 +00:00
John Cupitt
babbb086f9 add openslideload_source 2020-12-30 14:14:08 +00:00
John Cupitt
0982d0efbb signal error on EOF in jpegload more reliably 
we were only warning on EOF in the read stub, even if fail was set

thanks bozaro

see https://github.com/libvips/libvips/issues/1946
 2020-12-28 22:46:33 +00:00
John Cupitt
98be88bf80 add sourceginput 
This is a source which wraps a GInputStream. You can use this to eg.
efficiently load a PNG file from a GFile object.
 2020-12-28 15:14:36 +00:00
John Cupitt
ac1417b410 Merge branch '8.10' 2020-12-26 17:07:17 +00:00