lesson10_gradients_and_edge_detection.py

import cv2
import numpy as np

cap = cv2.VideoCapture(0)


while True:
    _, frame = cap.read()
        # ???
    laplacian = cv2.Laplacian(frame, cv2.CV_64F)
        # sobelx & y
    sobelx = cv2.Sobel(frame, cv2.CV_64F, 1, 0, ksize=5)
    sobely = cv2.Sobel(frame, cv2.CV_64F, 0, 1, ksize=5)
        # Canny edge detectors:
    edges = cv2.Canny(frame, 100, 200)
    
    cv2.imshow('original', frame)
    #cv2.imshow('laplacian', laplacian)
    #cv2.imshow('sobelx', sobelx)
    #cv2.imshow('sobely', sobely)
    cv2.imshow('edges', edges)
    
    
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()