膨胀和腐蚀

其他

发布时间 : 2021-01-02 15:18

阅读 :

import cv2 as cv
import numpy as np


def erode_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_RECT, (5, 5))
    dst = cv.erode(binary, kernel)
    cv.imshow('erode_demo', dst)

def dilate_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_RECT, (5, 5))
    dst = cv.dilate(binary, kernel)
    cv.imshow('dilate_demo', dst)

src = cv.imread('./15.png')  # blue, green, red
cv.namedWindow('input image', cv.WINDOW_AUTOSIZE)
cv.imshow('input image', src)
# erode_demo(src)
dilate_demo(src)
cv.waitKey(0)

cv.destroyAllWindows()

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