Cv2 threshold not working

1. How does cv2 threshold work?
2. How to find threshold in image using OpenCV?
3. What is cv2 adaptive threshold?

How does cv2 threshold work?

The function used is cv2.

First argument is the source image, which should be a grayscale image. Second argument is the threshold value which is used to classify the pixel values. Third argument is the maxVal which represents the value to be given if pixel value is more than (sometimes less than) the threshold value.

How to find threshold in image using OpenCV?

# import opencv import cv2 # Read image src = cv2. imread("threshold. png", cv2. IMREAD_GRAYSCALE) # Set threshold and maxValue thresh = 0 maxValue = 255 # Basic threshold example th, dst = cv2.

What is cv2 adaptive threshold?

adaptiveThreshold is the threshold method, again just like the simple thresholding and Otsu thresholding methods. Here we pass in a value of cv2. THRESH_BINARY_INV to indicate that any pixel value that passes the threshold test will have an output value of 0 . Otherwise, it will have a value of 255 .