Made image detection work

tools/generate_config.py

@@ -4,11 +4,11 @@ from shenzhen_solitaire.card_detection.configuration import Configuration
 
 def main() -> None:
     """Generate a configuration"""
-    with open("pictures/20190809172213_1.jpg", 'rb') as png_file:
-        img_str = png_file.read()
-    nparr = np.frombuffer(img_str, np.uint8)
-    image = cv2.imdecode(nparr, cv2.IMREAD_COLOR)
+    image = cv2.imread("pictures/20190809172213_1.jpg")
 
     generated_config = Configuration.generate(image)
     generated_config.save('test_config.zip')
+
+if __name__ == "__main__":
+    main()