diff --git a/colorconversion_flag.py b/colorconversion_flag.py
new file mode 100644
index 0000000..1ec0417
--- /dev/null
+++ b/colorconversion_flag.py
@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Tue Jul 17 22:56:22 2018
+
+@author: charc
+"""
+
+import cv2
+
+def main():
+    j = 0
+    for file in dir(cv2):
+        if file.startswith('COLOR_'):
+            print(file)
+            j +=1
+    
+    print("there are " + str((j+1)) + ' color conversion flag in cv2')        
+if __name__ == "__main__":
+    main()
+    
+    
\ No newline at end of file