python+openCV图像处理（二十六）开运算与闭运算

最新推荐文章于 2025-04-11 09:00:00 发布

yang_jianfeng

最新推荐文章于 2025-04-11 09:00:00 发布

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分类专栏： OpenCV python

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import cv2 as cv
import numpy as np

def open_demo(image):#开操作=腐蚀+膨胀  去外边白点
    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_ELLIPSE, (15, 15))
    binary = cv.morphologyEx(binary, cv.MORPH_OPEN, kernel)
    cv.imshow("open-result", binary)

def close_demo(image):#闭操作=膨胀+腐蚀 填充里边黑点
    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("close_demo", binary)

src = cv.imread("1.png")
cv.namedWindow("input image", cv.WINDOW_AUTOSIZE)
cv.imshow("input image", src)
open_demo(src)
close_demo(src)

cv.waitKey(0)

cv.destroyAllWindows()