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Add default background metadata for PNG and GIF images

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Lovell Fuller
2021-07-19 14:55:22 +01:00
parent 719c2db8da
commit 3f08f6a359
6 changed files with 22 additions and 1 deletions
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1
docs/api-input.md
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@@ -22,6 +22,7 @@ A `Promise` is returned when `callback` is not provided.
* `pagePrimary`: Number of the primary page in a HEIF image
* `levels`: Details of each level in a multi-level image provided as an array of objects, requires libvips compiled with support for OpenSlide
* `subifds`: Number of Sub Image File Directories in an OME-TIFF image
* `background`: Default background colour, if present, for PNG (bKGD) and GIF images, either an RGB Object or a single greyscale value
* `compression`: The encoder used to compress an HEIF file, `av1` (AVIF) or `hevc` (HEIC)
* `hasProfile`: Boolean indicating the presence of an embedded ICC profile
* `hasAlpha`: Boolean indicating the presence of an alpha transparency channel

2
docs/changelog.md
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@@ -8,6 +8,8 @@ Requires libvips v8.11.2
* Drop support for Node.js 10, now requires Node.js >= 12.13.0.
* Add `background` property to PNG and GIF image metadata.
* Add `compression` property to HEIF image metadata.
[#2504](https://github.com/lovell/sharp/issues/2504)