本文主要是介绍python实现opencv学习二十:轮廓发现,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
代码如下:
# -*- coding=GBK -*-
import cv2 as cv
import numpy as np#轮廓发现
def contous_image(image):dst = cv.GaussianBlur(image, (3, 3), 0)gray = cv.cvtColor(dst, cv.COLOR_BGR2GRAY)ret, binary = cv.threshold(gray, 0, 255, cv.THRESH_BINARY | cv.THRESH_OTSU)cv.imshow("二值化", binary)cloneImage, contous, heriachy = cv.findContours(binary, cv.RETR_EXTERNAL, cv.CHAIN_APPROX_SIMPLE)for i,contou in enumerate(contous):cv.drawContours(image, contous, i, (0, 0, 255), 1)cv.imshow("轮廓", image)for i,contou in enumerate(contous):cv.drawContours(image, contous, i, (0, 0, 255), -1)cv.imshow("轮廓覆盖", image)src = cv.imread("D://1.jpg")
cv.imshow("原来", src)
contous_image(src)
cv.waitKey(0)
cv.destroyAllWindows()
运行结果如下:
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