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21 Commits

Author SHA1 Message Date
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
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
d1fc0591a5 Silence Windows compiler warnings #19 2015-04-21 14:39:37 +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
49b44d8238 Ensure compilation on RHEL/Centos 6 gcc 2014-10-21 22:01:43 +01:00
Lovell Fuller
8bc1981891 Refactor C++ code 
Split features into their own file

Style is becoming less C, more C++
 2014-10-21 21:38:19 +01:00
Lovell Fuller
b877751b2d Add support for C++11 on Mac 2014-08-24 21:41:09 +01:00
Lovell Fuller
5fe945fca8 Add gravity support to crop #45 2014-08-21 11:01:25 +01:00
Lovell Fuller
2126f9afc1 Ensure xcode/clang uses cflags 
Silence pedantic warnings triggered by V8 in 0.11
 2014-07-09 21:14:40 +01:00
Lovell Fuller
012edb4379 Support existing path to pkg-config lib for Heroku #57 2014-06-17 19:55:41 +01:00
Lovell Fuller
6d20a1ca81 Simplify gyp to support non-standard brew installs #56 2014-06-05 22:19:02 +01:00
Lovell Fuller
6b5f2028b7 Add support for 32 bit Linux #27 2014-05-21 23:46:10 +01:00
Pierre Inglebert
e96fd8b9de 0.11 compat using nan 2014-04-02 00:10:42 +02:00
Lovell Fuller
a292e1fe8e Add path to homebrew-installed pkgconfig for Mac OS 10.8 (10.9 is symlinked to 10.8) #9 2014-03-12 20:45:35 +00:00
Lovell Fuller
16551bc058 Take a temporary copy of buffers provided as input. Soak testing suggests this prevents the problems seen in #6. 2014-02-12 22:36:13 +00:00
Lovell Fuller
7ffcdb79e0 Add glib-2.0 path for Mac OS X 2014-01-30 18:28:24 +00:00
Lovell Fuller
d509458ba1 Major rewrite and therefore API change. Despite the name, image sharpening is now optional, plus there are other new options. Can now handle buffers in and out. Doubled performance in certain cases. Closes #3. Closes #4. 2014-01-19 21:38:37 +00:00
Lovell Fuller
0b7c8661fb The pkgconfig data file ends up in /usr/local when compiling libvips from source 2013-09-23 21:40:01 +01:00
Lovell Fuller
a4149ed2a5 Initial commit 2013-08-19 22:39:51 +01:00