python裂缝检测_通过opencv-python检测裂缝

import cv2 as cv

import cv2

import numpy as np

import time

from matplotlib import pyplot as plt

value = 60

value1 = 0

canny_min = 100

canny_max = 150

minlineLength = 200

maxlineGap = 10

area_threshold = 90

#用于去除杂点

def removeLittlePoint(img,threshold):

image, contours, hierarch = cv2.findContours(img, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)

for i in range(len(contours)):

area = cv2.contourArea(contours[i])

if area < threshold:

cv2.drawContours(image, [contours[i]], 0, 0, cv2.FILLED)

return image

def callback(object):

global value,value1,src2,src2_copy,src,minlineLength,maxlineGap,canny_max,canny_min,area_threshold

src2[:,:] = src2_copy[:,:]

#得到滑动条对应的值

value = cv2.getTrackbarPos('value'