59 Commits

Author SHA1 Message Date
Lovell Fuller
af9d09f8ae Ensure conv kernel scale is clamped to min val of 1 #561 2016-09-03 20:06:49 +01:00
Matt Hirsch
5c5d74a903 Add joinChannel and toColourspace/toColorspace operations (#513) 2016-08-17 15:42:05 +01:00
Matt Hirsch
d17e8d3450 Add boolean feature for bitwise image operations (#501) 2016-07-11 09:51:43 +01:00
Matt Hirsch
83d8847f57 Add extractChannel operation to extract a channel from an image (#497) 2016-07-09 16:48:30 +01:00
Matt Hirsch
f672f86b53 Add ability to read and write native vips .v files (#500) 2016-07-09 16:21:16 +01:00
Kleis Auke Wolthuizen
b69627891d Add trim operation to remove "boring" edges (#491 #492) 2016-07-08 22:19:10 +01:00
Matt Hirsch
65b7f7d7d5 Add bandbool feature for channel-wise boolean operations (#496) 2016-07-07 21:03:49 +01:00
Rahul Nanwani
278273b5c3 Add top/left offset support to overlayWith operation (#473) 2016-07-05 10:12:02 +01:00
Lovell Fuller
4c172d25f6 Allow images with alpha channel to use LAB sharpen #490 2016-07-04 21:33:44 +01:00
Matt Hirsch
b70a7d9a3b Add convolve operation for kernel-based convolution (#479) 2016-07-04 20:48:00 +01:00
Matt Hirsch
85f20c6e1b Add greyscale option to threshold operation (#480) 2016-07-03 19:32:07 +01:00
Kleis Auke Wolthuizen
2e9cd83ed2 Add support for clipping/cutting out (#435) (#448)
USAGE: overlayWith('overlayimage.png', { cutout: true } )
2016-06-25 16:48:01 +01:00
Lovell Fuller
f1ead06645 Update test expectations/thresholds previously failing on OS X.
Remove Node v5 from CI builds.
2016-06-14 22:25:27 +01:00
Lovell Fuller
7d261a147d Ensure scaling factors are calculated independently #452
Fixes bug introduced in v0.15.0 where, if the shrink operation
rounded up along one dimension, it could then also round up the
reduce operation on the same axis, creating a small stretch effect.
2016-06-13 23:03:45 +01:00
lemnisk8
62554b766f Add support for repeated/tiled overlay image (#443)
USAGE: overlayWith('overlayimage.png', { tile: true, gravity: northwest} )
When using the tile option, the gravity option is applied to the extracted part of the tiled overlay image.
2016-05-26 16:42:17 +01:00
frulo
e699e36270 Add alpha channel, if required, before extend operation (#439) 2016-05-26 09:46:14 +01:00
Lovell Fuller
cdb2894bd9 Use libvips' new lanczos3 kernel as default for image reduce
Deprecate interpolateWith method, now provided as an option
2016-05-18 19:57:22 +01:00
Lovell Fuller
1bece3a792 Add 2 channel (grey+alpha) GIF test case #375 2016-05-07 20:04:17 +01:00
Lovell Fuller
1de0038516 Upgrade to libvips 8.3.x
Add support for libvips' new native loaders, including GIF and SVG
Pre-built binaries now include giflib and librsvg, exclude *magick
2016-05-07 20:04:17 +01:00
Lovell Fuller
b6030c161b Update expected test fixtures for libvips 8.3 2016-04-23 20:07:55 +01:00
Lovell Fuller
c920180cb3 Remove (un)premultiply ops when not resizing/compositing #413 2016-04-23 19:50:00 +01:00
Lovell Fuller
e0d58266be Allow use of embed with 1 and 2 channel images #411 2016-04-14 21:39:17 +01:00
Felix Bünemann
1b7c5816fc Speed up slow pixel limit tests (#404)
This replaces the single color 20000x14000 PNG with a 20000x14000
Grayscale JPG. On a Broadwell Core i7 @ 3.1 GHz this speeds up the
"Disabling limit works" test from ~6.2s to ~0.15s because it can use
jpeg resize-on-load optimizations.

This should fix occasional timeouts on Travis CI.
2016-04-08 22:21:28 +01:00
Samy Al Zahrani
ef61da3051 Ensure dimensions of final output image are provided (#399)
Add a failing test for vips::VError exception
* fix buffer size mismatch
* Loosen error message assertion
* Update image
2016-04-08 08:58:51 +01:00
kentongray
8c9c070caf Ability to disable limitInputPixels #250
Update docs
Added a giant image for testing
Adding myself to contributors
Added tests to verify giant image can be opened
Extend test-win time limit (because of large images)
2016-04-04 08:35:11 +01:00
Lovell Fuller
2034efcf55 Add experimental, entropy-based auto-crop
Remove deprecated extract API
2016-03-05 12:29:16 +00:00
Lovell Fuller
f950294f70 Add ability to extend (pad) the edges of an image 2016-03-03 09:18:11 +00:00
Lovell Fuller
d92ea31858 overlayWith improvements: diff sizes/formats, gravity, buffer input 2016-02-29 15:15:27 +00:00
Lovell Fuller
df33c3024a Fix embedding onto transparent backgrounds #366
Fully automate embed tests to prevent regression
2016-02-25 18:36:00 +00:00
Lovell Fuller
ca49e6079c Increase threshold for gamma=0 test, due to either
the version of libjpeg or a cumulative rounding error.
2016-02-04 19:10:58 +00:00
Lovell Fuller
cf7664a854 Improve SVG support by allowing control of density/DPI
Switch pre-built libs from Imagemagick to Graphicsmagick
2016-02-03 17:48:22 +00:00
Lovell Fuller
2675b2265b Ensure 16-bit input images embed onto alpha background
Support gamma correction of images with alpha channel
Favour shrink over affine when reducing by integral factor
2016-02-03 17:48:22 +00:00
Lovell Fuller
b3d6e94984 Optimisation for integral factors: favour shrink over affine 2016-02-03 17:48:22 +00:00
Lovell Fuller
61b86744d7 Ensure 16-bit input images work with embed option #325 2015-12-23 20:46:49 +00:00
Lovell Fuller
58e6368525 Ensure embedded ICC profiles output with perceptual intent #321 2015-12-06 20:24:17 +00:00
Lovell Fuller
5febce7a59 Remove executable bit from test/* file permissions 2015-11-21 23:05:48 +00:00
Lovell Fuller
05dd191e17 Ensure 16-bit+alpha input images work with vips_premultiply #301
Improves SVG support as *magick serves these as 16-bit

Add automated tests for SVG and 16-bit+alpha PNG inputs
2015-11-21 20:21:34 +00:00
Lovell Fuller
5842da22d8 Merge pull request #306 from dacarley/negate
Add negate operation to invert all pixel values.
2015-11-17 20:45:09 +00:00
David Carley
3af62446fc Implements greyscale thresholding 2015-11-17 12:15:34 -06:00
David Carley
33a175eafb Implements negation. 2015-11-17 10:18:59 -06:00
Lovell Fuller
84fd1caa46 Switch default interpolator to bicubic #289
Only use gaussian blur for non-linear interpolators

Improves performance of bilinear by ~15%

Add liborc to the packaged build to improve bicubic perf

Add examples of the various interpolation methods

Add bilinear vs bicubic to perf tests
2015-11-15 22:04:31 +00:00
Lovell Fuller
58d9e0fef7 Pre-extract rotate should not swap width/height #296 2015-11-11 22:34:30 +00:00
Brandon Aaron
79470d2e07 EXIF Orientation tags 2 and 4 were flipping instead of flopping 2015-10-16 15:41:40 -04:00
Lovell Fuller
692e2d4df4 Automate expected vs actual for blur/sharpen tests 2015-09-07 14:17:35 +01:00
Lovell Fuller
658a541f49 Add test case for enlarge+embed combo #243 2015-08-12 09:26:38 +01:00
Lovell Fuller
36ac8828f2 Gamma correction and premultiply do not mix
Skip premultiply for fast blur/sharpen

Automate gamma correction tests
2015-08-11 21:51:22 +01:00
Lovell Fuller
1091be374e Alpha compositing: support grey+alpha src and non-alpha dst 2015-06-02 14:51:08 +01:00
Lovell Fuller
8832ae0bf9 Add private maxColourDistance for functional tests
Switch MSE-based tests to use it

Remove experimental MSE-based compare API
2015-06-01 14:21:02 +01:00
Daniel Gasienica
ef8db1eebf Premultiply alpha channel to avoid dark artifacts during tranformation
Add `Sharp.compare(file1, file2, callback)` function for comparing images
using mean squared error (MSE). This is useful for unit tests.

See:
- https://github.com/jcupitt/libvips/issues/291
- http://entropymine.com/imageworsener/resizealpha/
2015-06-01 14:21:02 +01:00
Daniel Gasienica
64f7f1d662 Add experimental overlayWith API
Composites an overlay image with alpha channel into the input image (which
must have alpha channel) using ‘over’ alpha compositing blend mode. This API
requires both images to have the same dimensions.

References:
- http://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending
- https://github.com/jcupitt/ruby-vips/issues/28#issuecomment-9014826

See #97.
2015-06-01 14:21:01 +01:00