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Author SHA1 Message Date
John Cupitt
5361903fae make gif delay default to 4 
should match imagemagick
 2017-11-21 16:08:26 +00:00
John Cupitt
e56282e1fd add gif-loop metadata 
see https://github.com/rokka-io/imagine-vips/issues/3
 2017-11-21 16:04:18 +00:00
John Cupitt
b611f46d5a better gif delay decode 2017-11-21 15:09:44 +00:00
John Cupitt
d0c7f9d040 fix page-height in gifload 
and add support for "gif-delay" metadata item
 2017-11-21 11:21:27 +00:00
John Cupitt
8497840d97
Merge pull request #811 from lovell/smartcrop-luminance 
Smartcrop: ~19% speedup by getting luminance from LAB instead of LCH
 2017-11-21 08:31:53 +00:00
Lovell Fuller
e8b0e455d8 Take luminance value from LAB instead of LCH 
Avoids costly atan2 conversion to polar coords
 2017-11-20 20:56:45 +00:00
John Cupitt
43288833b9
Merge pull request #810 from lovell/smartcrop-clamp-sigma 
Smartcrop: clamp sigma to avoid out of range warnings
 2017-11-20 17:41:33 +00:00
Lovell Fuller
caa0988256 Clamp minimum sigma to avoid out of range warnings 2017-11-19 20:22:19 +00:00
John Cupitt
a4b89aa370 credit for affine fixup 2017-11-18 15:11:02 +00:00
John Cupitt
65cfe2e7c0 Merge branch 'master' into fix-affine-jaggies 2017-11-18 15:10:50 +00:00
John Cupitt
2815647ce3 fix background for affine on alpha images 
need to convert to ink for premultiplied space
 2017-11-18 13:42:00 +00:00
John Cupitt
e179e3b11f premultiply alpha (if necessary) in affine 2017-11-18 10:59:20 +00:00
John Cupitt
cd898c52de
Merge pull request #808 from lovell/prefer-sqrt-to-pow-0.5 
Prefer ~10x faster sqrt instead of pow when y=0.5
 2017-11-17 22:11:23 +00:00
Lovell Fuller
bb58685d1c Use ~10x faster sqrt instead of pow when y=0.5 2017-11-17 20:24:28 +00:00
John Cupitt
fcec6d639b fix jaggies on the edge of affine output 
and add a "background" param
 2017-11-17 16:30:25 +00:00
John Cupitt
ef9b23b95a update function list 2017-11-09 15:00:13 +00:00
John Cupitt
2bb7844f4c update docs 
some old stuff in examples
 2017-11-09 14:53:20 +00:00
John Cupitt
c01afbc559 update docs 
the examples page was using the old python binding
 2017-11-04 14:50:49 +00:00
John Cupitt
4ea743f5e6 add combine mode to find_indexed 2017-11-03 16:36:09 +00:00
John Cupitt
487c112807 add VIPS_COMBINE_MIN combining mode 
for vips_compass()
 2017-11-02 12:34:01 +00:00
John Cupitt
55e577a2fb rename nearest as fill_nearest 
avoid a clash with the nearest-neighbour interpolator
 2017-11-01 15:06:37 +00:00
John Cupitt
cdc286e9d6 switch to float distance calculations 
removes dithering effects along edges
 2017-11-01 13:16:36 +00:00
John Cupitt
cb37089c9b seems to work 2017-11-01 13:16:36 +00:00
John Cupitt
ae54f35ed1 start tinkering 2017-11-01 13:16:36 +00:00
John Cupitt
d90f2e649d no error for bad page-height in tiffsave 
just don't write a toilet-roll image

the error was confusing and easy to trigger by mistake

see https://github.com/jcupitt/libvips/issues/782
 2017-10-24 09:39:58 +01:00
John Cupitt
3b75b1e2ac fix gcc7 build 
removed exception specs from deprecated C++ binding
 2017-10-24 09:31:23 +01:00
John Cupitt
5ec1d5b72f fix vipsthumbnail --size Nx 
oh dear, width but not height size specs to vipsthumbnail were not working

thanks jrochkind

see https://github.com/jcupitt/libvips/issues/781
 2017-10-23 22:27:23 +01:00
John Cupitt
990b68b54b typos 2017-10-23 18:05:41 +01:00
John Cupitt
d99a189846 missing cast 2017-10-19 17:00:56 +01:00
John Cupitt
dd503c03c6 add vips_value_set_blob_free() 
simpler for language bindings to call
 2017-10-19 16:37:43 +01:00
John Cupitt
b060883706 default tiff predictor to horizontal 
reduces default tiff lzw / deflate file size by ~20 - 30% at no performance
cost ... thanks @jrochkind

See https://github.com/jcupitt/libvips/issues/777
 2017-10-19 08:50:16 +01:00
John Cupitt
6912fe91ed sniff webp from the magic number 
removes the 100 byte minimum file size

see https://github.com/lovell/sharp/issues/996
 2017-10-18 09:00:34 +01:00
John Cupitt
a8bbe05596 tiny optimisations 2017-10-16 20:55:58 +01:00
John Cupitt
99f02aeff1 allow approx gaussmat 
works with gaussblur now
 2017-10-16 17:10:16 +01:00
John Cupitt
5290901f86 ban gcc 5.x from vector stuff too 
it seems to be easy to get internal compiler errors, thanks homm

see https://github.com/jcupitt/pyvips/issues/21
 2017-10-16 17:08:07 +01:00
John Cupitt
0767e4f4c9 remove a 0.5 pixel shift from triangle 
lines up with cubic and lanczos now
 2017-10-16 09:38:04 +01:00
John Cupitt
53119250cc fix a crash in gifload with a missing colormap 
it seems gifs can have a missing colormap, who knew

thanks Kleis

see https://github.com/jcupitt/libvips/issues/773
 2017-10-15 22:35:52 +01:00
John Cupitt
68ed42e2fa make linear and cubic adaptive 2017-10-15 22:09:44 +01:00
John Cupitt
cfa96f735a only read ifd0 orientation 
we used to set orientation from the first ifd, now just read ifd0, since
that's where the main image orientation should always be

see https://github.com/jcupitt/libvips/issues/772
 2017-10-14 21:54:31 +01:00
John Cupitt
008fd21728 all done 2017-10-14 17:03:48 +01:00
John Cupitt
36f21138d7 builds half float mask 2017-10-14 13:46:51 +01:00
John Cupitt
ec99ff5000 compiles 2017-10-14 12:38:48 +01:00
John Cupitt
0b3d7fc185 start half-float experiment 2017-10-13 18:06:58 +01:00
John Cupitt
cf1e6e3ef8 oh dear, missing breaks in switch 
too much ruby sigh
 2017-10-13 12:16:03 +01:00
John Cupitt
c76b4893c0 convi was leaking vectors 
we forgot to free the compiled code on dispose, oops

thanks MHeimbuc

see https://github.com/jcupitt/libvips/issues/771
 2017-10-12 14:41:21 +01:00
John Cupitt
135d7a4dfb Merge branch '8.5' 2017-10-11 12:57:18 +01:00
John Cupitt
b4a6e6e309 spelling 2017-10-11 11:24:43 +01:00
John Cupitt
fd1d332892 update change notes 2017-10-11 10:12:01 +01:00
John Cupitt
bfc339facb make vips_image_write() sever connections 
when writing to a non-partial image, vips_image_write() now carefully severs
all connections between the two images on completion

this fixes a couple of cases where we had bad behaviour: writing to a
temp file could leave dangling pointers, see

https://github.com/jcupitt/libvips/issues/708

and writing to a memory buffer during copy_memory coud leave dangling
pointers too, see:

https://github.com/jcupitt/ruby-vips/issues/140
 2017-10-11 10:02:42 +01:00
John Cupitt
e96fd25a9f more icc input profile sanity tests 
check colourspace too, so we won't try to import an RGB image with a LAB
profile

see https://github.com/jcupitt/libvips/issues/730
 2017-10-10 14:23:05 +01:00