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190 Commits

Author SHA1 Message Date
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
5c9c17f1f6 Switch from libvips' C to C++ binding 
Requires upgrade to libvips 8.2.1
 2016-02-03 17:48:22 +00:00
Lovell Fuller
11329d5e09 Expose control of the number of open files in libvips' cache. 
Breaks API of existing cache method.
Disable libvips cache for I/O tests.
 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
32c4b9eff1 Allow SIMD vector unit to be toggled on/off #172 
Currently defaults to off but future versions may default to on
 2015-12-12 09:11:50 +00:00
Lovell Fuller
58e6368525 Ensure embedded ICC profiles output with perceptual intent #321 2015-12-06 20:24:17 +00:00
Lovell Fuller
8012733a52 Expose libvips+deps versions attribute 
Add versions.json for Linux packaging

Bump vips-dev Windows version for latest libpng
 2015-11-22 20:58:38 +00:00
Lovell Fuller
5febce7a59 Remove executable bit from test/* file permissions 2015-11-21 23:05:48 +00:00
Lovell Fuller
0ae619dfc5 Remove stray win32 library that was causing segfaults 
Explicit int cast to prevent 'loss of precision' warnings

Remove unnecessary semver checking from I/O tests
 2015-11-21 22:18:39 +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
Andreas Lind
60b8b92630 Add support for .extract({left:...,top:...,width:...,height:...}). 2015-11-18 12:06:10 +01:00
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
25e5f27785 add corner gavity support 2015-10-27 15:10:10 -04:00
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
5b376364f5 Add test case for require-time libc++ segfault 2015-08-27 23:59:48 +01:00
Andreas Lind
faa515d969 crop: Permit specifying the gravity as a string. 
Will be looked up in require('sharp').gravity.
 2015-08-19 14:49:02 +02:00
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
022a2b1ade Ensure test coverage of overlayWith error paths 2015-07-15 09:37:25 +01:00
Lovell Fuller
d303703dc5 Allow override of EXIF Orientation tag #189 
Clear Orientation when rotate/flip/flop are used
 2015-07-13 20:00:33 +01:00
Lovell Fuller
b8885c1faa Auto-width and height calcs now round instead of floor 
I think this will better match people's expectations
 2015-07-03 15:21:28 +01:00
Lovell Fuller
321e0f2bfe Add 'icc' raw profile data to metadata #129 2015-06-29 21:27:23 +01:00
Lovell Fuller
6ac47c1ef8 Add raw EXIF data to metadata response 
Copy metadata input buffer to match pipeline

Prevents possible metadata segfault under load
 2015-06-28 23:35:40 +01:00
Lovell Fuller
86490bedfb Add 'clone' method to snapshot an instance 
Cloned instances share a common input
Allows multiple output Streams to use a single input Stream
 2015-06-28 14:21:02 +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
e2c53b59ce Tighten constructor and quality param checks #221 2015-06-01 14:48:57 +01:00
Lovell Fuller
f19b6c48ca Skip normalise operation for images with one colour 
It didn't play nicely with premultiplication
 2015-06-01 14:21:02 +01:00
Lovell Fuller
d2a2654ace Replace use of 'finally' in failing tests 2015-06-01 14:21:02 +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
Lovell Fuller
b50fb53f27 Use image fingerprints in functional tests #122 2015-06-01 14:21:01 +01:00
Lovell Fuller
33782d3c83 Embed alpha image on non-transparent background #204 2015-04-29 20:14:45 +01:00
Lovell Fuller
fb1c9cf3d3 Less strict assert for unordered events 2015-04-21 13:57:24 +01:00
Lovell Fuller
21ba1dfc26 Wrap flapping event test in nextTick 2015-04-21 13:22:29 +01:00
Lovell Fuller
1e52c2dbe6 Windows compatibility #19 
Hide WebP format and normalise option

Separate test runners for node and iojs
 2015-04-21 12:13:19 +01:00
Lovell Fuller
46cc45c186 Fail fast for unknown interpolator 2015-04-20 11:22:21 +01:00
Bernhard K. Weisshuhn
8ac33aad69 avoid segfault with unknown interpolator 2015-04-20 00:24:03 +02:00
Lovell Fuller
a0655806de No need to remove dzi file extension 
libvips handles this - ensures filenames containing . work
 2015-04-19 21:08:15 +01:00
Lovell Fuller
3614d14f83 A few small fixes to the test scripts 2015-04-19 16:15:40 +01:00
Lovell Fuller
f6fd45cc90 Expose libjpeg extension param features 
Trellis quantisation, overshoot deringing and scan optimisation
 2015-04-19 16:15:40 +01:00
Bernhard K. Weisshuhn
dce36e0074 Add normalize() for simple histogram stretching 
Available as normalize() or normalise().
Normalization takes place in LAB place and thus should not change any
colors.

Existing alpha channels are preserved untouched by normalization.
 2015-04-18 12:55:04 +02:00
Alaric Holloway
f72435c750 Support resize without preserving aspect ratio #118 2015-04-16 06:50:47 -07:00
Lovell Fuller
ae968142ee Soften limitInputPixels upper limit #146 
Default limit of 14-bit dimensions remains
 2015-04-12 14:23:36 +01:00
Lovell Fuller
f1ad1216ca Add support for Windows #19 
Requires VIPS_HOME environment variable
 2015-04-05 22:42:14 +01:00