Docs: changelog for #4441

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**:
 

docs/src/content/docs/changelog/v0.34.4.md

@@ -8,3 +8,7 @@ slug: changelog/v0.34.4
 
 * Ensure `autoOrient` removes existing metadata after shrink-on-load.
   [#4431](https://github.com/lovell/sharp/issues/4431)
+
+* TypeScript: Ensure `KernelEnum` includes `linear`.
+  [#4441](https://github.com/lovell/sharp/pull/4441)
+  [@BayanBennett](https://github.com/BayanBennett)

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)

lib/index.d.ts

@@ -1784,6 +1784,7 @@ declare namespace sharp {
     interface KernelEnum {
         nearest: 'nearest';
         cubic: 'cubic';
+        linear: 'linear';
         mitchell: 'mitchell';
         lanczos2: 'lanczos2';
         lanczos3: 'lanczos3';

package.json

@@ -182,11 +182,11 @@
     "license-checker": "^25.0.1",
     "mocha": "^11.7.1",
     "node-addon-api": "^8.5.0",
-    "node-gyp": "^11.2.0",
+    "node-gyp": "^11.4.1",
     "nyc": "^17.1.0",
     "semistandard": "^17.0.0",
     "tar-fs": "^3.1.0",
-    "tsd": "^0.32.0"
+    "tsd": "^0.33.0"
   },
   "license": "Apache-2.0",
   "engines": {

test/unit/extractChannel.js

@@ -82,7 +82,6 @@ describe('Image channel extraction', function () {
     const output = fixtures.path('output.extract-alpha-2-channel.png');
     sharp(fixtures.inputPngWithGreyAlpha)
       .extractChannel('alpha')
-      .toColourspace('b-w')
       .toFile(output, function (err, info) {
         if (err) throw err;
         assert.strictEqual(1, info.channels);