边缘检测

import cv2 as cv
import numpy as np
import matplotlib.pyplot as plt

def display_img(img):
    cv.imshow('image',img)
    cv.waitKey(0)
    cv.destroyAllWindows()
def canny_img(file="p.jpeg"):
    img = cv.imread(file,cv.IMREAD_GRAYSCALE)
    v1 = cv.Canny(img,80,150)
    v2 = cv.Canny(img,50,100)
    res = np.hstack((v1,v2))
    display_img(res)
def canny_img_(file="p.jpeg"):
    img = cv.imread(file,cv.IMREAD_GRAYSCALE)
    res = cv.Canny(img,80,150)
    display_img(res)
    
canny_img(file="gui.jpeg")
canny_img_(file="gui.jpeg")