Save multiple images with OpenCV and Python

Question

I'm using OpenCV and Python to take images. However currently I can only take one picture at a time. I would like to have OpenCV to take multiple pictures. This is my current code.

import cv2.cv as cv
import time

cv.NamedWindow("camera", 1)

capture = cv.CaptureFromCAM(0)

while True:
    img = cv.QueryFrame(capture)
    cv.ShowImage("camera", img)
    cv.SaveImage('pic.jpg', img)
    if cv.WaitKey(10) == 27:
        break 

Answer 1

Your code overwrite a file. Save to different file each time. For example:

import cv2.cv as cv
import time

cv.NamedWindow("camera", 1)

capture = cv.CaptureFromCAM(0)

i = 0
while True:
    img = cv.QueryFrame(capture)
    cv.ShowImage("camera", img)
    cv.SaveImage('pic{:>05}.jpg'.format(i), img)
    if cv.WaitKey(10) == 27:
        break
    i += 1