GUI软件包用于Jupyter Notebook(图像上的选择点)

Question

我的计算机视觉分配的上下文：计算同构矩阵，其中之一是创建一个GUI来选择图像上的点(以获取坐标和像素值(。

我已经浏览了stackoverflow，找到了一些选项，即使用TKINTER，但是答案是从2011年开始的。我想知道那里是否还有其他或新选项。

Answer 1

这是使用openCV 3.3.1对我有用的代码有关摄像机校准，请参阅我的github repo https://github.com/abhishek098/camera_calibration。

import numpy as np
import yaml
import cv2

'''
1. change the path to load image and store data 
2. double click on the image to save the co-ordinates   
3. images should be named as 0.jpg, 1.jpg, 2.jpg .....
4. 
'''
# set image and data path here..
path = "/home/abhishek/stuff/object_detection/explore/"

points = []
def mouseCB(event,x,y,flags,param):
    if event == cv2.EVENT_LBUTTONDBLCLK :
        print (x, y)
        points.append([x, y])

count = 0
exit_flag = True
points_list = []
while exit_flag:
    window_name = 'image_' + str(count)
    cv2.namedWindow(window_name)
    cv2.setMouseCallback(window_name, mouseCB)
    image_name = path + str(count) + '.jpg'
    img = cv2.imread(image_name)
    cv2.imshow(window_name, img)
    while True:
        ip = cv2.waitKey(0) & 0xFF
        if ip == ord('n'):
            count += 1
            points_list.append(points)
            points = []
            cv2.destroyAllWindows()
            break
        elif ip == ord('q'):
            exit_flag = False
            break
    print (count)
data = {'img_co': np.asarray(points_list).tolist()}
file = path + "data.yaml"
with open(file, "w") as f:
    yaml.dump(data, f)
cv2.destroyAllWindows()