A program in python for capturing images from webcam, using OpenCV

image_capture.py

import numpy as np
import cv2

cap = cv2.VideoCapture(0)
i=1
while(True):
	# Capture frame-by-frame
	ret, frame = cap.read()

	# Operations on the frame
	frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
	frame = cv2.GaussianBlur(frame, (7,7), 3)
	frame = cv2.adaptiveThreshold(frame, 255, cv2.ADAPTIVE_THRESH_GAUSSIAN_C, cv2.THRESH_BINARY_INV, 11, 2)
	ret, new = cv2.threshold(frame, 25, 255, cv2.THRESH_BINARY_INV + cv2.THRESH_OTSU)

	# Display the resulting frame
	cv2.imshow('frame',new)

	#Save required number of images
	img_name='img' + str(i) + '.png'
	if i<6000 :
		cv2.imwrite(img_name, new)
	i=i+1
	if cv2.waitKey(1) & 0xFF == ord('q'):
		break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()