史上最简单&最全&最基础&入门到精通的opencv图像处理 第十二课：梯度运算

代码如下（示例）：

#梯度运算
import cv2 as cv#opencv BGR
import matplotlib.pyplot as plt #包导入
import numpy as np

# 梯度=膨胀-腐蚀
pie = cv.imread('C:/Users/akaak/Pictures/OpenCV/pie.png')
kernel = np.ones((7,7),np.uint8)
dilate = cv.dilate(pie,kernel,iterations = 5)
erosion = cv.erode(pie,kernel,iterations = 5)
res = np.hstack((dilate,erosion))
cv.imshow('res', res)
cv.waitKey(0)
cv.destroyAllWindows()

gradient = cv.morphologyEx(pie, cv.MORPH_GRADIENT, kernel)
cv.imshow('gradient', gradient)
cv.waitKey(0)
cv.destroyAllWindows()

学习了梯度运算。