Expand linear operation to allow use of per-channel arrays #3303

lib/constructor.js

@@ -319,8 +319,8 @@ const Sharp = function (input, options) {
     tileId: 'https://example.com/iiif',
     tileBasename: '',
     timeoutSeconds: 0,
-    linearA: 1,
-    linearB: 0,
+    linearA: [],
+    linearB: [],
     // Function to notify of libvips warnings
     debuglog: warning => {
       this.emit('warning', warning);