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Add premultiplied option to composite operation (#1835)

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Andargor
2019-08-14 14:01:23 -04:00
committed by Lovell Fuller
parent 3fa91bb4ce
commit 4ae8999f62
10 changed files with 81 additions and 3 deletions
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docs/api-composite.md
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@@ -31,6 +31,7 @@ and [https://www.cairographics.org/operators/][2]
- `images[].top` **[Number][7]?** the pixel offset from the top edge.
- `images[].left` **[Number][7]?** the pixel offset from the left edge.
- `images[].tile` **[Boolean][9]** set to true to repeat the overlay image across the entire image with the given `gravity`. (optional, default `false`)
- `images[].premultiplied` **[Boolean][9]** set to true to avoid premultipling the image below. Equivalent to the `--premultiplied` vips option. (optional, default `false`)
- `images[].density` **[Number][7]** number representing the DPI for vector overlay image. (optional, default `72`)
- `images[].raw` **[Object][4]?** describes overlay when using raw pixel data.
- `images[].raw.width` **[Number][7]?**