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Use bounding box of alpha+non-alpha for trim op #2166

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Lovell Fuller
2022-07-05 18:19:17 +01:00
parent e3cab7f10f
commit e0d3c6e05d
8 changed files with 44 additions and 14 deletions
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lib/resize.js
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@@ -430,7 +430,8 @@ function extract (options) {
/**
* Trim "boring" pixels from all edges that contain values similar to the top-left pixel.
* Images consisting entirely of a single colour will calculate "boring" using the alpha channel, if any.
*
* Images with an alpha channel will use the combined bounding box of alpha and non-alpha channels.
*
* The `info` response Object, obtained from callback of `.toFile()` or `.toBuffer()`,
* will contain `trimOffsetLeft` and `trimOffsetTop` properties.