“How can you use OpenCV in Python to read image data?”

To read image data using OpenCV, you can follow these steps:

1. Import the OpenCV library:

import cv2

1. This function reads an image using OpenCV.

image = cv2.imread('image.jpg')

1. what is the shape of the image?

height, width, channels = image.shape

1. display an image using OpenCV.

cv2.imshow('Image', image)
cv2.waitKey(0)  # 等待按键触发事件
cv2.destroyAllWindows()  # 关闭所有图像窗口

Before using the cv2.imshow() function, it is necessary to have support for a graphical user interface library (e.g. Qt, GTK, etc.), otherwise the image window will not be displayed correctly.

The above are the basic steps for reading image data using OpenCV. You can further process and analyze the image data as needed. You can also use the cv2.imwrite() function to save the image data to a file.

cv2.imwrite('new_image.jpg', image)