9 Commits

Author SHA1 Message Date
Lovell Fuller
bdac84059d Update perf results for forthcoming v0.13.0
Install runtime rather than dev pkgs on Alpine Linux
2016-02-12 19:33:21 +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
ee8fcb6109 Update docs to reflect ease-of-installation 2015-11-10 00:04:06 +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
Lovell Fuller
d26f6b3b89 Big documentation clean-up
Add structure via mkdocs (replaces ever-growing README)

Inline usage examples with the method they demonstrate

Add changelog
2015-07-15 10:17:55 +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
c886eaa6b0 Version bumps for v0.11.0 WIP 2015-06-01 14:21:01 +01:00
Lovell Fuller
74704a132c Add a contribution guide to help those who help 2015-01-16 22:31:46 +00:00