开闭操作

其他

发布时间 : 2021-01-02 15:19

阅读 :

import cv2 as cv
import numpy as np


def open_demo(image):
    print(image.shape)
    gray = cv.cvtColor(image, cv.COLOR_BGR2GRAY)
    ret, binary = cv.threshold(gray,0,255,cv.THRESH_BINARY_INV | cv.THRESH_OTSU)
    cv.imshow('binary', binary)
    kernel = cv.getStructuringElement(cv.MORPH_ELLIPSE, (10, 10))
    binary = cv.morphologyEx(binary, cv.MORPH_OPEN, kernel)
    cv.imshow('open-result', binary)

def close_demo(image):
    print(image.shape)
    gray = cv.cvtColor(image, cv.COLOR_BGR2GRAY)
    ret, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU)
    cv.imshow('binary', binary)
    kernel = cv.getStructuringElement(cv.MORPH_RECT, (15, 15))
    binary = cv.morphologyEx(binary, cv.MORPH_CLOSE, kernel)
    cv.imshow('open-result', binary)

src = cv.imread('./18.png')  # blue, green, red
cv.namedWindow('input image', cv.WINDOW_AUTOSIZE)
cv.imshow('input image', src)
open_demo(src)
# close_demo(src)
cv.waitKey(0)

cv.destroyAllWindows()

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