Getting closer to get multiple coordinates

understand.py

@@ -211,4 +211,24 @@ array([[False, False, False, ..., False, False, False],
 538
 >>> min(np.where(mask==True)[1])
 399
+"""
+
+
+"""
+import cv2 as cv
+contours, hierarchy = cv.findContours(visual_mask, cv.RETR_LIST, cv.CHAIN_APPROX_SIMPLE)
+shrunk = contours[0][:, 0, :]
+
+>>> shrunk[0, :]
+array([1907,  887], dtype=int32)
+>>> shrunk[:, 0]
+array([1907, 1907, 1908, 1908, 1908], dtype=int32)
+>>> shrunk[:, 1]
+array([887, 888, 889, 890, 888], dtype=int32)
+>>> shrunk
+array([[1907,  887],
+       [1907,  888],
+       [1908,  889],
+       [1908,  890],
+       [1908,  888]], dtype=int32)
 """