OpenCV cv2.minMaxLoc() is often used to find the maximum and minimum value in a numpy array. In this tutorial, we will use an example to show you how to use this function.
Look at this example:
import numpy as np import cv2 a=np.array([[1,2,3,4],[5,67,8,9]])
We have created a numpy array a, which is 2*4.
In order to find the maximum and minimum value in a, we can do like this:
cv2.minMaxLoc() will return four values:
min_val: the minimum value
max_val: the maximum value
min_index: the index of minimum value in a
max_indx: the index of maximum value in a
Run this code, you will get:
1.0 67.0 (0, 0) (1, 1)