贴部分代码

#! /usr/bin/env python# -*- coding: utf-8 -*-import cv2import numpy as npfrom PIL import Imagearea = 0def ostu(img): global area image=cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) # 转灰度 blur = cv2.GaussianBlur(image,(5,5),0) # 阈值一定要设为 0 ！高斯模糊 ret3,th3 = cv2.threshold(blur,0,255,cv2.THRESH_BINARY+cv2.THRESH_OTSU) # 二值化 0 = black ; 1 = white # cv2.imshow('image', th3) # a = cv2.waitKey(0) # print a height, width = th3.shape for i in range(height): for j in range(width): if th3[i, j] == 255: area += 1 return area

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