add grey conversion to find_faces

previ · previ · commit 64661b143f00 · 2024-02-28T23:17:29.000+01:00
diff --git a/coderbot/cv/image.py b/coderbot/cv/image.py
@@ -84,7 +84,8 @@ def get_transform(cls, image_size_x):
         return tx
 
     def find_faces(self):
-        faces = self._face_cascade.detectMultiScale(self._data)
+        gray = cv2.cvtColor(self._data, cv2.COLOR_BGR2GRAY)
+        faces = self._face_cascade.detectMultiScale(gray)
         return faces
 
     def filter_color(self, color):
