捕获单帧 OpenCV-Python

Question

Good afternoon, I have a question about capturing a single image with OpenCV because most of the codes I have seen for videocapture get many frames until they stop but I am only interested in one as if we were taking a picture. I attach the code that I have been reviewing and I appreciate your advice.

import cv2

# Opens the Video file
cap= cv2.VideoCapture('C:/New/Videos/Play.mp4')
i=0
while(cap.isOpened()):
    ret, frame = cap.read()
    if ret == False:
        break
    cv2.imwrite('kang'+str(i)+'.jpg',frame)
    i+=1

cap.release()
cv2.destroyAllWindows()

Answer 1

You should be able to use a function through pyautogui like screenshot . In my opinion this is easier. PYAutoGUI has some of OPEN-CV built in as well.

Example:

import pyautogui
screenshot = pyautogui.screenshot()
screenshot.save(r'currentscreenshot.jpg')

Hopefully this helps! (Edit you may or may not have to install pillow, if so run pip install pillow .)