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Author SHA1 Message Date
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
36be0453dd Refactor internal 'resize' to more apt 'pipeline' 
Refactor 'composite' C to C++ 'operations'
 2015-06-01 16:33:26 +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
Lovell Fuller
c792a047b1 Ensure libvips version requirement 
Should improve debugging, e.g. #222
 2015-06-01 14:21:01 +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
c886eaa6b0 Version bumps for v0.11.0 WIP 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
75d72cfded Version bumps ahead of v0.10.1 v0.10.1 2015-06-01 09:50:49 +01:00
Lovell Fuller
21b0d8c7f7 Version bumps ahead of v0.10.1 
Use SPDX format in licence field
 2015-05-31 19:35:24 +01:00
Lovell Fuller
fa8f06f07d Include C standard library for 'atoi' #228 
Xcode 6.3 appears to no longer do this
 2015-05-31 19:05:18 +01:00
Lovell Fuller
e07a105b7c Test availability of __has_feature macro 2015-05-11 11:54:53 +01:00
Lovell Fuller
4f72dcbf54 Verify platform/compiler compatibility #178 #214 2015-05-11 10:46:47 +01:00
Lovell Fuller
b77877c83d Add Amazon Linux 2015.03 
Update to libvips version 8.0.2
 2015-05-07 15:50:14 +01:00
Lovell Fuller
8fd3520257 Correct use of Windows CI env variable 2015-05-05 11:15:32 +01:00
Lovell Fuller
f15e64039c Windows CI does not yet have io.js v2 2015-05-05 10:46:23 +01:00
Lovell Fuller
3ffe2ba17f Windows CI matrix and version bumps 2015-05-05 10:15:20 +01:00
Lovell Fuller
33782d3c83 Embed alpha image on non-transparent background #204 2015-04-29 20:14:45 +01:00
Lovell Fuller
783826aa26 Reverse Openslide if/else for Debian 8 #203 2015-04-27 18:44:53 +01:00
Lovell Fuller
c2ef16eac2 Don't publish AppVeyor config to npm 2015-04-27 18:44:11 +01:00
Lovell Fuller
e999fb6e30 Dependency version bumps ahead of v0.10.0 v0.10.0 2015-04-23 14:29:14 +01:00
Lovell Fuller
d1fc0591a5 Silence Windows compiler warnings #19 2015-04-21 14:39:37 +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
dacd62428e Fix Windows CI binding config 2015-04-21 12:37:45 +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
8926ebc56c Add Appveyor config for Windows CI 
Silence 'possible loss of data' warning
 2015-04-20 19:00:22 +01:00
Lovell Fuller
9da87ce868 Fix typo in conditional introduced in 8ac33aa 2015-04-20 17:50:47 +01:00
Lovell Fuller
46cc45c186 Fail fast for unknown interpolator 2015-04-20 11:22:21 +01:00
Lovell Fuller
54f2243386 Merge pull request #198 from bkw/unknownInterpolator 
Runtime guard against unknown interpolator class, avoids segfault.
 2015-04-20 10:17:44 +01:00
Bernhard K. Weisshuhn
8ac33aad69 avoid segfault with unknown interpolator 2015-04-20 00:24:03 +02:00
Lovell Fuller
6fc62d39c9 Update thank you list 
Add perf test for normalise
 2015-04-19 21:09:19 +01:00
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
Lovell Fuller
be39297f3b Merge pull request #194 from bkw/normalize 
Add normalize() to use full luminance range.
 2015-04-19 16:05:20 +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
Lovell Fuller
ba034a8164 Add docs for new ignoreAspectRatio option 2015-04-16 18:28:30 +01:00
Lovell Fuller
3dfc7bea3a Merge pull request #192 from skedastik/judgement 
Add support for ignoreAspectRatio option when resizing
 2015-04-16 15:53:43 +01:00
Alaric Holloway
f72435c750 Support resize without preserving aspect ratio #118 2015-04-16 06:50:47 -07:00
Lovell Fuller
3810f642d3 Add small cache before convolution for seq access 2015-04-14 21:31:20 +01:00
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
ccb7887cb9 Use libjpeg-dev metapackage for Debian variants #190 2015-04-09 11:56:36 +01:00
Lovell Fuller
f1ad1216ca Add support for Windows #19 
Requires VIPS_HOME environment variable
 2015-04-05 22:42:14 +01:00
Lovell Fuller
ce6813329b Improve code portability ahead of Windows support 2015-04-05 21:57:53 +01:00
Lovell Fuller
7ad7193b1e Add test for progressive JPEG output 2015-03-30 11:36:14 +01:00