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108 Commits

Author SHA1 Message Date
Lovell Fuller
2034efcf55 Add experimental, entropy-based auto-crop 
Remove deprecated extract API
 2016-03-05 12:29:16 +00:00
Lovell Fuller
38ddb3b866 Add support for Zoomify and Google tile layouts 
Breaks existing tile API
 2016-03-03 20:39:38 +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
86815bc9c4 Emit post-processing 'info' event for Stream-based output 2016-03-01 20:08:05 +00:00
Lovell Fuller
bb37dc1ea6 Expose density metadata; set density of images from vector input 2016-03-01 19:33:54 +00:00
Lovell Fuller
d92ea31858 overlayWith improvements: diff sizes/formats, gravity, buffer input 2016-02-29 15:15:27 +00:00
Jarda Kotesovec
32fcb771ca clone clean up 2016-02-17 10:25:00 +01:00
Lovell Fuller
677b2b9089 Selected output format > unknown file extension #344 2016-02-07 20:13:13 +00:00
Joel Mukuthu
da74cd078f Fix: default crop gravity to sharp.gravity.center 
Closes https://github.com/lovell/sharp/issues/350
 2016-02-04 10:38:58 +01:00
Lovell Fuller
e380576da2 Add support for raw, uncompressed pixel Buffer/Stream input 2016-02-03 19:21:37 +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
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
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
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
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
20f468991f Start to use libvips 8.1.0+ features #152 
Use native (un)premultiply

Support normalise on Windows
 2015-11-12 22:14:53 +00:00
Lovell Fuller
2129adfcc3 Initial commit of local libvips binding/packaging 
Copy Windows DLLs into release dir as no rpath equivalent
Use local libvips on Windows CI
 2015-11-07 19:58:26 +00:00
Brandon Aaron
25e5f27785 add corner gavity support 2015-10-27 15:10:10 -04:00
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
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
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
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
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
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
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
Lovell Fuller
ba034a8164 Add docs for new ignoreAspectRatio option 2015-04-16 18:28:30 +01:00
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
81c710eaa3 Add EventEmitter for queue length changes 
Remove unnecessary params from Error handler
 2015-03-20 15:44:18 +00:00
Lovell Fuller
5781a23a4d Combine new tile* API methods 
Use v7.40.0+ libvips loader methods

Separate Openslide as input vs Deep Zoom as output

Split tile-based tests into new file

Added assertions for generated tile size
 2015-03-12 15:39:27 +00:00
Victor Mateevitsi
2d1e6f2644 Added Deep Zoom support. 
Added OpenSuse 13.1 and 13.2 support in preinstall.sh script.
Added OpenSlide support in preinstall script.
Added unit tests for Deep Zoom and OpenSlide.
 2015-03-10 14:00:27 +00:00
Maurus Cuelenaere
125ee836fe Let libvips check whether we received a valid image or not 
This removes the custom image fingerprinting code and uses the libvips
is_a_buffer() infrastructure instead.
 2015-03-01 11:53:17 +01:00
Linus Unnebäck
bcd82f4893 feature: min 2015-02-27 13:50:52 +01:00
Lovell Fuller
c7ccf6801d Expose runtime format availability 
Aids addition of new format/method combos

Dogfood this in the test code
 2015-02-26 19:41:33 +00:00
Maurus Cuelenaere
ab7408c96f Add support for loading images through ImageMagick as a buffer 2015-02-16 10:12:59 +01:00
Lovell Fuller
1f7e80e581 Add chroma subsampling options for JPEG output 2015-02-13 09:41:42 +00:00
Lovell Fuller
8f41fed9c2 Add toFormat convenience method #137 2015-02-12 11:37:56 +00:00
Lovell Fuller
e5a5e2ca7e Tighten 'extract' parameter validation #158 2015-01-29 22:46:04 +00:00
Lovell Fuller
8421e3aa5f Add limitInputPixels option to reject input #115 2015-01-20 14:18:05 +00:00
Lovell Fuller
5dab3c8482 Allow rotate before pre-resize extraction #145 2015-01-16 22:30:57 +00:00