Lovell Fuller
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d26f6b3b89
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Big documentation clean-up
Add structure via mkdocs (replaces ever-growing README)
Inline usage examples with the method they demonstrate
Add changelog
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2015-07-15 10:17:55 +01:00 |
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Daniel Gasienica
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ef8db1eebf
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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/
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2015-06-01 14:21:02 +01:00 |
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Daniel Gasienica
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64f7f1d662
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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.
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2015-06-01 14:21:01 +01:00 |
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Lovell Fuller
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c886eaa6b0
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Version bumps for v0.11.0 WIP
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2015-06-01 14:21:01 +01:00 |
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Lovell Fuller
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74704a132c
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Add a contribution guide to help those who help
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2015-01-16 22:31:46 +00:00 |
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