02901436d4
Add meson build system ( #2637 )
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Allows to use the Meson build system to build the project.
2022-02-08 15:19:36 +00:00
ffe574399e
oop typo
2020-09-21 10:07:25 +01:00
54144a8bc5
allow gaussblur sigma 0
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meaning no blur (obviosuly)
2020-09-21 09:45:08 +01:00
9246094033
Fix function pointer cast issues
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It is undefined behavior in C and C++ to cast a function pointer
to another type and call it that way. This does work in most native
platforms, however, despite it being UB, but in WASM it can fail.
See:
https://emscripten.org/docs/porting/guidelines/function_pointer_issues.html
2020-06-30 13:35:41 +02:00
f6b9f382ec
Avoid using unneeded variables
2020-06-18 14:40:29 +02:00
597def2f77
Remove outdated comment
2020-06-18 14:37:54 +02:00
051be9203f
swp int -> GType in some decls
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Some linkers complain about these type mismatches. Thanks kloczek.
See https://github.com/libvips/libvips/issues/1604
2020-04-09 12:20:00 +01:00
686829166d
fix some more metadata updates
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some more minor cases picked up by the test suite
2019-11-30 12:11:23 +00:00
1ee54bfa80
Merge branch '8.8'
2019-09-05 12:45:08 +01:00
a3d2544934
sharpen restores colourspace
2019-08-31 12:30:06 +01:00
4b5b982711
merge 8.8
2019-08-31 12:29:50 +01:00
574be4380e
revert sharpen restoring the input colourspace
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icc_export can make _RGB images, so the input can be outside the set of
supported colourspace transforms.
See 46212e92b1 (r34904985)
2019-08-31 11:29:36 +01:00
9a5dca1ef8
Merge branch '8.8'
2019-08-28 10:05:12 +01:00
46212e92b1
fix default sharpen
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sharpen with sigma 0.5 was doing nothing, since the new int precision
rules meant that we generated a point-point convolution.
This patch increases the int precision for sharpen, so we now work with
sigma down to 0.5.
Also: restore input colourspace. Previously, the output image was always
LabS (the computation space for sharpen). Now, it transforms back to the
input space. This is more in line with how other operators work.
Thanks 2h4dl for pointing this out.
See https://github.com/libvips/pyvips/issues/123
2019-08-28 09:16:40 +01:00
834acad825
fix << on signed int warnings
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<< on a negative number is undefined behaviour in C, and will trigger
fuzzer warnings.
2019-08-02 05:35:18 +01:00
4f2112a4e9
fix memleak in canny
2019-03-11 11:35:25 +00:00
2041deb917
Fix convolution vector path posterization
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This fixes posterization in the vector path for convolution caused by a
typo in commit eefb2dad98
2018-06-13 17:18:55 +02:00
b085908558
remove vips7 stuff from API
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You must now include vips7 support explicitly with
#include <vips/vips7compat.h>
in your code just after including `vips.h`.
The old vips7 names, such as `Rect`, were starting to cause problems
with other packages like opencv.
2018-05-16 15:08:21 +01:00
10c72c58d5
Remove mention of deprecated radius parameter in vips_sharpen()
2018-03-25 20:30:42 +02:00
c5bf128e39
add "precision" control to canny
2018-03-18 11:12:06 +00:00
6d570ef0ff
more canny cleanups
2018-03-17 22:42:40 +00:00
b4181054b2
cleanups ready for merge
2018-03-17 18:13:43 +00:00
81a7fb92eb
oop
2018-03-17 18:12:14 +00:00
ad13dd2041
add a high-precision path for canny
2018-03-17 18:10:50 +00:00
3fe9b7abc5
split thresh stuff out of canny
2018-03-16 17:26:06 +00:00
7328f47333
fix atan2 lut in canny
2018-03-16 16:29:52 +00:00
ae82877e66
try a LUT for atan2
2018-03-14 17:19:17 +00:00
84810a6c5c
update notes
2018-03-05 08:21:51 +00:00
7f5b0b94c3
Merge branch '8.6' into add-canny
2018-03-04 18:45:59 +00:00
eefb2dad98
improve rounding in convi intize
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We were rounding up with ceil() when intize-ing convolution masks.
However, the vector path has a true range of (1.0, -1.0], so a mask with
1.0 as the max (for example) was actually triggering the overflow detector
and falling back to the C path.
Round up with ceil(x + 1) instead, so 1.0 (for example) will be mapped
to 0.5 and won't overflow.
2018-03-04 18:30:25 +00:00
bc0b8ba5c1
sobel done
2018-02-28 22:51:31 +00:00
bf70c49fa5
add a fast uchar sobel
2018-02-27 18:19:07 +00:00
4a59fa652c
make vips_sobel()
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cut out of vips_canny()
2018-02-26 18:33:20 +00:00
0365e3403e
add double threshold to canny
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and some more tuning
2018-02-10 16:07:21 +00:00
407291c3ff
try a simpler edge detect in canny
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simple +/- differencing seems to work better
2018-02-08 17:14:26 +00:00
43cbd32955
try interpolating theta
2018-02-05 09:22:58 +00:00
ce6d37189c
non-interpolatory edge thinning works
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woo
2018-02-03 17:34:49 +00:00
6944f78452
add edge thinning to canny
2018-02-03 10:14:09 +00:00
a93e8dd079
start adding canny
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just adding edge thinning
see https://en.wikipedia.org/wiki/Canny_edge_detector
2018-02-02 17:00:23 +00:00
487c112807
add VIPS_COMBINE_MIN combining mode
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for vips_compass()
2017-11-02 12:34:01 +00:00
008fd21728
all done
2017-10-14 17:03:48 +01:00
36f21138d7
builds half float mask
2017-10-14 13:46:51 +01:00
ec99ff5000
compiles
2017-10-14 12:38:48 +01:00
0b3d7fc185
start half-float experiment
2017-10-13 18:06:58 +01:00
c76b4893c0
convi was leaking vectors
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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
de82c9e919
allow much larger reduce factors
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sometimes you want to use lanczos etc. for everything
2017-10-09 11:48:11 +01:00
d5101319d2
Update GObject introspection annotations for libvips/convolution directory
2017-09-30 20:23:38 +01:00
63550280a4
Merge branch '8.5'
2017-08-04 18:31:25 +01:00
3a29cea09f
turn off some debug messages
2017-08-04 17:40:02 +01:00
7d98b39843
small speedup to conv
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remove a table for a few % speedup
2017-07-02 19:25:52 +01:00
Corentin Noël
John Cupitt
Kleis Auke Wolthuizen
Felix Bünemann
Janko Marohnić
Alistair Thomas