单击图像1次，获取位置并销毁OpenCv窗口 [英] Click image 1 time, get position and destroy window OpenCv

问题描述

是否有一种简单的方法可以使用OpenCv打开图像，并保持其打开状态直到被单击，然后返回像素坐标并销毁图像，就像使用WaitKey()一样，只是带有返回键，然后单击作为触发器?

Is there a simple way to open an image using OpenCv, and keep it open until it is clicked, then return the pixel coordinate and destroy the image, almost like using WaitKey() just with a return, and click as trigger?

推荐答案

这应该做您想要的:

#!/usr/bin/env python3

import cv2
import numpy as np

def onClick(event,x,y,flags,param):
    """Called whenever user left clicks"""
    global Running
    if event == cv2.EVENT_LBUTTONDOWN:
        print(f'I saw you click at {x},{y}')
        Running = False

# Create window
wname = "Funky Image"
cv2.namedWindow(winname=wname)
cv2.setMouseCallback(wname, onClick)

# Load an image
img = cv2.imread('image.jpg')

Running = True
while Running:

    cv2.imshow(wname,img)
    cv2.waitKey(1)

cv2.destroyAllWindows

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