我有一个机器人在移动的图像，我需要提取白色的环
才能找到机器人的中点。但是阈值并没有给出正确的结果：
我应该尝试什么方法才能只提取白色的环。
%code to get second image img=imread('data\Image13.jpg'); hsv=rgb2hsv(img); bin=hsv(:,:,3)>0.8;
sdnqo3pr1#
差不多吧？
import cv2 import numpy as np # get bounding rectangles of contours img = cv2.imread('img.jpg') gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY) ret, thresh = cv2.threshold(gray, 200, 255, cv2.THRESH_BINARY) contours, _ = cv2.findContours(thresh, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE) # filter contours by area and width contours = [c for c in contours if (50 < cv2.contourArea(c) < 500) and cv2.boundingRect(c)[2] > 20] # draw contours on empty mask out = np.zeros(thresh.shape, dtype=np.uint8) cv2.drawContours(out, contours, -1, 255, -1) cv2.imwrite('out.png', out)
产出：
1条答案
按热度按时间sdnqo3pr1#
差不多吧？
产出：