how to save thresholding video in python opencv [closed]
import numpy as np
import cv2
cap = cv2.VideoCapture(0)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (640,480))
frame1 = None
while(cap.isOpened()):
ret, frame = cap.read()
if ret==True:
#frame = cv2.flip(frame,0)
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
if frame1 is None:
frame1 = gray
frameT = cv2.absdiff(frame1, gray)
_ ,thresh = cv2.threshold(frameT, 25, 255, cv2.THRESH_BINARY)
out.write(thresh)
cv2.imshow('thresh',thresh)
cv2.imshow('frame',frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
else:
break
cap.release()
out.release()
cv2.destroyAllWindows()
by using above code i can save the video as frame by using this "out.write(frame)" but not able to save video "out.write(thresh)" when i use this any idea please?
just for the record, if you want to write single channel, grayscale images, use:
(last arg !)