#59: Save rmss for futher investigations

For instance to plot a fair comparison, see [issues/59#issuecomment-1732](#59 (comment)).

datasets/raise/utils.py

@@ -119,4 +119,8 @@ def mergeSingleColorChannelImagesAccordingToBayerFilter(singleColorChannelImages
                 newX, newY = [getNewIndex(index, offset) for index, offset in [(x, offsetX), (y, offsetY)]]
 
                 multipleColorsImage[newX, newY] = pixel
-    return multipleColorsImage
+    return multipleColorsImage
+
+def saveNpArray(fileName, npArray):
+    with open(f'{fileName}.npy', 'wb') as f:
+        np.save(f, npArray)