Fix drawBoxesOnRGB with RGB images

fix #22

Author: LauLauThom

Diff for: MTM/__init__.py

@@ -324,7 +324,7 @@ def drawBoxesOnRGB(image:NDArray, listHit:Sequence[Hit], boxThickness:int=2, box
             original image with predicted template locations depicted as bounding boxes
     """
     # Convert Grayscale to RGB to be able to see the color bboxes
-    outImage = cv2.cvtColor(image, cv2.COLOR_GRAY2RGB) if image.ndim == 2 else image.copy
+    outImage = cv2.cvtColor(image, cv2.COLOR_GRAY2RGB) if image.ndim == 2 else image.copy()
 
     for label, bbox, _ in listHit:
 
@@ -388,4 +388,4 @@ def drawBoxesOnGray(image:NDArray, listHit:Sequence[Hit], boxThickness=2, boxCol
                         color=labelColor, 
                         lineType=cv2.LINE_AA)
 
-    return outImage
+    return outImage