Docs: extractChannel output colourspace is b-w or grey16

lovell · lovell · commit cd337e4de338 · 2025-08-18T10:24:55.000+01:00
diff --git a/docs/src/content/docs/api-channel.md b/docs/src/content/docs/api-channel.md
@@ -61,6 +61,8 @@ const rgba = await sharp(rgb)
 
 Extract a single channel from a multi-channel image.
 
+The output colourspace will be either `b-w` (8-bit) or `grey16` (16-bit).
+
 
 **Throws**:
 
diff --git a/lib/channel.js b/lib/channel.js
@@ -74,6 +74,8 @@ function ensureAlpha (alpha) {
 /**
  * Extract a single channel from a multi-channel image.
  *
+ * The output colourspace will be either `b-w` (8-bit) or `grey16` (16-bit).
+ *
  * @example
  * // green.jpg is a greyscale image containing the green channel of the input
  * await sharp(input)

Original file line number	Diff line number	Diff line change
`@@ -74,6 +74,8 @@ function ensureAlpha (alpha) {`
`74`	`74`	`/**`
`75`	`75`	`* Extract a single channel from a multi-channel image.`
`76`	`76`	`*`
	`77`	+ * The output colourspace will be either `b-w` (8-bit) or `grey16` (16-bit).
	`78`	`+ *`
`77`	`79`	`* @example`
`78`	`80`	`* // green.jpg is a greyscale image containing the green channel of the input`
`79`	`81`	`* await sharp(input)`