Eugene Zagidullin
5311ab3c51
Reverse alpha premultiplication
2016-01-07 21:30:54 +01:00
nfnt
579058ccc0
Test for color-casts due to wrong alpha-channel scaling.
2016-01-07 20:34:21 +01:00
nfnt
dc93e1b98c
Fix wrong colors of resized image.YCbCr images.
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Fixes issue #31 .
The color value of every pixel of the resized image is created from the YCbCr
colors of the input image. Therefore each of the three components have the same
sample rate. This is the 4:4:4 chroma subsampling and the output images are
now created accordingly.
2015-05-27 10:54:45 +02:00
Jan Schlicht
a3789c3aed
Merge pull request #34 from minodisk/master
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Fix wrong color with RGBA input
2015-05-27 10:09:16 +02:00
minodisk
87f723015c
Test same color with some color modes
2015-05-25 18:53:05 +09:00
minodisk
f430a41192
Fix wrong color with RGBA input
2015-05-25 18:20:03 +09:00
nfnt
f2d1b73023
Merge branch 'alpha_channel_fix'
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Colors in image.RGBA, image.RGBA64 and generic types with alpha channel should
now resize correctly. There's a small performance hit for these image types even
if they don't use alpha channels though.
Fixes bug #26 .
2015-05-12 16:00:13 +02:00
nfnt
3502bb8cd1
Merge branch 'NRGBA_support'
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This adds optimized access to image.NRGBA, image.NRGBA64 types. Internally these
image types are now preferred as they are easier to handle if alpha channels are
used.
2015-05-12 15:50:27 +02:00
nfnt
03c3eb7832
Mention optimized access for image.NRGBA, image.NRGBA64 in README.
2015-05-12 15:47:43 +02:00
nfnt
563154816f
Remove debugging directives.
2015-05-12 15:24:41 +02:00
nfnt
c3c062672a
Reverse alpha-premultiplication for image.RGBA, image.RGBA64 and generic images
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types.
2015-05-12 15:19:11 +02:00
nfnt
5a6676c19e
Add test case for input data with pre-multiplied-alpha.
2015-05-12 15:18:07 +02:00
jst
ce86eacf20
Merge branch 'disintegration-pixel_coordinate'
2015-03-27 19:50:42 +01:00
jst
b8fbe1cf50
Merge branch 'pixel_coordinate' of https://github.com/disintegration/resize into disintegration-pixel_coordinate
2015-03-27 19:49:21 +01:00
jst
618f7ff07a
Add test case for correct pixel coordinates after resize.
2015-03-27 19:48:18 +01:00
jst
45c239597b
Fix compile error.
2015-03-25 20:23:07 +01:00
jst
beee5e27fe
Add support for nearest-neighbor resize of NRGBA, NRGBA64 images.
2015-03-25 20:20:28 +01:00
jst
79dc2b616d
Add functions for nearest-neighbor resize of NRGBA, NRGBA16.
2015-03-25 20:17:14 +01:00
jst
ebea2e66be
Support image.NRGBA, image.NRGBA16 in resize.Resize function.
2015-03-25 18:47:07 +01:00
jst
daa7cf45d3
Return NRGBA images.
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Resizing images with alpha channels is easier for NRGBA, NRGBA64 image types.
Support for these is added by providing the necessary resize functions.
2015-03-25 18:38:23 +01:00
disintegration
0feec06645
Dst pixel coordinate fix
2015-03-19 22:52:55 +03:00
jst
53e9ca890b
Fix typos.
2015-03-18 20:19:43 +01:00
jst
4b952c4b95
Merge branch 'charlievieth-master'
2015-03-18 19:57:50 +01:00
jst
d67851ed1f
Explain optimization.
2015-03-18 19:56:53 +01:00
Charlie Vieth
962e93a6e5
Merge branch 'optimization'
2015-03-15 18:01:18 -04:00
Charlie Vieth
076a9ce3b9
Limit spawned goroutines to GOMAXPROCS(0).
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This change sets the number of spawned goroutines to the GOMAXPROCS
value set by the user.
Using more goroutines than available execution threads is slightly
detrimental to performance (~0.5%), and prevents users of the library
from controlling the number of spawned goroutines.
2015-03-15 17:59:38 -04:00
Charlie Vieth
d8255b0421
Optimize bound checks.
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Optimizing the bound checks resulted in an overall 14% increase in
conversion performance.
2015-03-15 17:44:39 -04:00
Charlie Vieth
b09281bd36
Update benchmarks to focus on conversion performance.
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Benchmark each interpolation function for RGBA and YCbCr images.
Reduce the image size used when benchmarking to reduce the influence of
memory performance on results.
2015-03-15 17:40:38 -04:00
jst
8f44931448
Merge branch 'master' of https://github.com/nfnt/resize
2014-12-17 11:23:53 +01:00
jst
9485f5475a
Return input image if output dimensions equal input dimensions.
2014-12-17 11:10:53 +01:00
jst
87b3f9b017
Merge pull request #23 from dlackty/patch-1
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Use SVG version badge for Travis CI
2014-12-03 19:40:17 +01:00
Richard Lee
f49722caca
Use SVG version badge for Travis CI
2014-11-21 17:00:51 +08:00
jst
7e2ce0a2ea
Go >=1.1 is needed for this package.
2014-10-24 14:47:00 +02:00
jst
13ea1287b3
Test using all available versions of Go.
2014-10-24 14:41:49 +02:00
jst
20c6afea04
Remove unnecessary benchmark
2014-09-15 11:58:05 +02:00
jst
0c6a628df5
Resolve image artifacts due to wrong coefficient index lookup.
2014-09-15 11:50:59 +02:00
jst
581d15cb53
Fix parallel computation.
2014-08-20 21:12:39 +02:00
jst
e950449c49
Fix wrong boundary calculation (bug #17 )
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This fix doesn't currently work concurrently. This will be fixed in another commit.
2014-08-20 20:54:59 +02:00
jst
03982f698d
Merge branch 'charlievieth-master'
2014-08-13 20:13:24 +02:00
jst
220cad3343
Add simple test case for input image with non-trivial bounds.
2014-08-13 20:12:18 +02:00
jst
7f8a5419ae
Merge branch 'master' of https://github.com/charlievieth/resize into charlievieth-master
2014-08-13 20:10:38 +02:00
Charlie Vieth
df655f3f70
Merge branch 'YCC'
2014-08-12 16:11:40 -04:00
Charlie Vieth
08b124d541
Fix bound out of range panic.
2014-08-12 16:11:25 -04:00
Charlie Vieth
171c886e38
Merge branch 'YCC'
2014-08-12 14:41:55 -04:00
Charlie Vieth
f03c78969b
Fix YCC SubImage.
2014-08-12 14:41:20 -04:00
Charlie Vieth
3c164b34f4
Merge branch 'YCC'
2014-08-12 14:22:17 -04:00
Charlie Vieth
acea8646b2
Fix error in YCC PixOffset and SubImage.
2014-08-12 14:22:06 -04:00
jst
ccddecd1bf
Merge branch 'charlievieth-master'
2014-08-05 18:01:45 +02:00
Charlie Vieth
a5a6a66088
Merge branch 'refactor'
2014-07-30 02:09:28 -04:00
Charlie Vieth
eefd4737aa
Optimize YCbCr image resize
2014-07-30 02:08:58 -04:00
