diff --git a/py/common.py b/py/common.py
index db689a6..f79ecc4 100644
--- a/py/common.py
+++ b/py/common.py
@@ -141,6 +141,13 @@ def weighted_euclidean_distance (r1, g1, b1, r2, g2, b2) :
 	#print(type(r1))
 	return sqrt( ((r2-r1) * R)**2 + ((g2-g1) * G)**2 + ((b2-b1) * B)**2 )
 
+def to_luma (color, space) :
+	color = [float(i) for i in list(color)]
+	if space == 'RGB' :
+		return rgb_to_luma(color[0], color[1], color[2])
+	elif space == 'BGR' :
+		return rgb_to_luma(color[2], color[1], color[0])
+
 def rgb_to_luma (r, g, b) :
 	R = 0.2126
 	G = 0.7152
diff --git a/py/comparison_comparison.py b/py/comparison_comparison.py
index 1871d4b..f9faa49 100644
--- a/py/comparison_comparison.py
+++ b/py/comparison_comparison.py
@@ -59,7 +59,7 @@ class ComparisonComparison:
 				else :
 					closest, dist = closest_color_euclidean(colors, cccompare)
 				
-				colors = remove_from_list(colors, closest)
+				colors = remove_from_list(colors, c losest)
 
 				ccbgr = convert_color(cc, 'RGB', 'BGR')
 				chosenbgr = convert_color(closest, space, 'BGR')