Fixed saving of greyscale images.

For greyscale images it used to only copy values to the first channel, rather than to all three. This has now been fixed.

Author: jaspervdg

package.json

@@ -1,6 +1,6 @@
 {
   "name": "save-pixels",
-  "version": "2.3.3",
+  "version": "2.3.4",
   "description": "Saves an ndarray as an image to a file",
   "main": "save-pixels.js",
   "directories": {

save-pixels.js

@@ -35,7 +35,7 @@ function handleData (array, data, frame) {
       ops.assign(
         ndarray(data,
           [array.shape[0], array.shape[1], 3],
-          [4, 4 * array.shape[0], 0]),
+          [4, 4 * array.shape[0], 1]),
         ndarray(array.data,
           [array.shape[0], array.shape[1], 3],
           [array.stride[0], array.stride[1], 0],
@@ -53,7 +53,7 @@ function handleData (array, data, frame) {
     ops.assign(
       ndarray(data,
         [array.shape[0], array.shape[1], 3],
-        [4, 4 * array.shape[0], 0]),
+        [4, 4 * array.shape[0], 1]),
       ndarray(array.data,
         [array.shape[0], array.shape[1], 3],
         [array.stride[0], array.stride[1], 0],