diff --git a/datasets/raise/extract_4_color_channel_images_from_raw.py b/datasets/raise/extract_4_color_channel_images_from_raw.py
index 0799695..2528b4d 100644
--- a/datasets/raise/extract_4_color_channel_images_from_raw.py
+++ b/datasets/raise/extract_4_color_channel_images_from_raw.py
@@ -15,7 +15,8 @@ def getImageFilePath(imageIndex):
 
 def getImageColorChannel(imageIndex, color):
     imageFilePath = getImageFilePath(imageIndex)
-    return getColorChannel(imageFilePath, color)
+    colorChannel = getColorChannel(imageFilePath, color)
+    return colorChannel
 
 def crop(image, interestingPosition, yRange, xRange):
     return image[interestingPosition[0] - yRange: interestingPosition[0] + yRange, interestingPosition[1] - xRange: interestingPosition[1] + xRange]