python+opencv学习-4

像素运算

算术运算

cv.add
cv.subtract
cv.divide
cv.multiply
cv.meanStdDev

import cv2 as cv
import numpy as np


def add_demo(m1,m2):
    dst = cv.add(m1, m2)
    cv.imshow("add_demo", dst)


def subtract_demo(m1, m2):
    dst = cv.subtract(m1, m2)
    cv.imshow("subtract_demo", dst)


def divide_demo(m1,m2):
    dst = cv.divide(m1, m2)
    cv.imshow("divide_demo", dst)


def multiply_demo(m1, m2):
    dst = cv.multiply(m1, m2)
    cv.imshow("multiply_demo", dst)


def other_demo(m1, m2):
    M1, dev1 = cv.meanStdDev(m1)
    M2, dev2 = cv.meanStdDev(m2)
    print(M1)
    print(M2)

    print(dev1)
    print(dev2)


if __name__ == '__main__':
    src1 = cv.imread("C:/python/images/b.png")
    src2 = cv.imread("C:/python/images/a.png")
    add_demo(src1, src2)
    subtract_demo(src1,src2)
    divide_demo(src1, src2)
    multiply_demo(src1, src2)
    other_demo(src1, src2)
    cv.waitKey(0)
    cv.destroyAllWindows()

逻辑运算

cv.bitwise_and()
cv.bitwise_not()
cv.bitwise_or()
cv.bitwise_xor()