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78 Commits

Author SHA1 Message Date
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
Lovell Fuller
a190ae6b08 Add raw, uncompressed image data output #136 2015-01-16 22:28:24 +00:00
Lovell Fuller
464fb1726d Keep output dimensions within WebP 14-bit range 2015-01-16 22:28:24 +00:00
Lovell Fuller
f026a835fd Move unref of input Buffer to C++ #138 2014-12-14 10:31:25 +00:00
Lovell Fuller
47241db789 Let V8 garbage collect the Buffer earlier #138 2014-12-13 08:48:24 +00:00
Lovell Fuller
0acf865654 Faster ICC profile transform via lcms #125 2014-11-25 22:52:24 +00:00
Lovell Fuller
b7c7fc22f3 Ensure correct Gaussian blur before affine #121 
Use double sigma instead of int radius for blur
 2014-11-20 13:59:39 +00:00
Lovell Fuller
177a4f574c Minimum version of libvips now 7.40.0 #74 2014-11-17 12:08:05 +00:00
Lovell Fuller
b886db4b0d Add bounds checks on blur/sharpen parameters #108 2014-11-12 20:06:28 +00:00
Lovell Fuller
32d9bc204a Add 'fast' blur and Gaussian blur feature #108 2014-11-10 22:38:13 +00:00
Lovell Fuller
86681100b7 Control level of sharpening via radius/flat/jagged #108 2014-11-10 16:20:04 +00:00
Lovell Fuller
7537adf399 Add features from libvips 7.40+ 
Load TIFF from Buffer/Stream

Interlaced PNG output no longer needs tilecache

Option to disable PNG adaptive row filtering
 2014-11-08 12:08:27 +00:00
Lovell Fuller
f7c2a839ad Add support for profile-less CMYK images #99 2014-11-06 11:30:19 +00:00
Lovell Fuller
a472adeb74 Fail fast for Buffer with unsupported format #105 2014-10-28 10:53:11 +00:00
Lovell Fuller
db6dc6431b Add support for mirroring #62 2014-10-21 14:47:08 +01:00
Lovell Fuller
6cade5bd7f Increase unit test coverage to ~95% 2014-10-21 12:22:23 +01:00
Lovell Fuller
ca561daedf Test code refactor #63 
Use mocha for feature-specific unit tests

Add test coverage report via istanbul
 2014-10-20 15:32:56 +01:00
Lovell Fuller
f4cb577cb4 Code lint of new features 2014-10-17 12:26:53 +01:00
Brandon Aaron
83b72a1ede Add support for stand-alone, pre-resize, and post-resize extraction with a topOffset, leftOffset, width, and height. 2014-10-07 09:56:55 -04:00
Lovell Fuller
7f8f38f666 PNG compression level range is 0-9 #95 2014-10-03 14:50:15 +01:00
Lovell Fuller
0cba506bc4 Allow embed with rgba background #86 #89 
Small memory leak mop-up related to #94
 2014-10-02 20:02:14 +01:00
Daniel Gasienica
6145231936 Add background and flatten APIs 2014-09-30 17:58:57 -07:00
Lovell Fuller
1c79d6fb5d Add support for greyscale conversion #43 2014-09-16 11:22:26 +01:00
Lovell Fuller
515b4656e6 Improve Stream error handling #88 2014-09-12 19:30:57 +01:00
Lovell Fuller
eb3e739f7b Expose libvips thread pool size 2014-09-03 19:52:03 +01:00
Lovell Fuller
5728efd32b Add support for gamma correction #43 2014-08-30 14:12:42 +01:00
Lovell Fuller
8380be4be3 Add nearest neighbour interpolation 
Suitable for image enlargement
 2014-08-26 09:38:27 +01:00
Juliano Julio Costa
c5efb77bad New withMetadata([boolean]) to keep metadata in the generated images. 2014-08-25 15:59:21 -04:00
Lovell Fuller
017bf1e905 Expose libvips interpolators #69 2014-08-22 16:50:24 +01:00
Lovell Fuller
f2f3eb76e1 Add method for fast access to image metadata #32 2014-08-22 14:17:43 +01:00
Lovell Fuller
5fe945fca8 Add gravity support to crop #45 2014-08-21 11:01:25 +01:00