图像数据采集与保存

#!/usr/bin/python3
#coding: utf-8
import cv2
 
## opening videocapture
cap = cv2.VideoCapture(0)
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1280)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)
## some videowriter props

sz = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),
        int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
fps = 10
fourcc = cv2.VideoWriter_fourcc('m', 'p', '4', 'v')
#fourcc = cv2.VideoWriter_fourcc('m', 'p', 'e', 'g')
#fourcc = cv2.VideoWriter_fourcc(*'mpeg')
 
## open and set props
vout = cv2.VideoWriter()

id = 9
cnt = 0
print('cap begin')
save_path = '{}{}{}'.format('C:/Users/Administrator/Desktop/get-hand-data/', str(id), '/')
vout.open(save_path+str(id)+'.mp4',fourcc,fps,sz,True)
while (cap.isOpened()):
    cnt += 1
    
    ret, frame = cap.read()
    if ret == True:
      #cv2.putText(frame, str(cnt), (10, 20), cv2.FONT_HERSHEY_PLAIN, 1, (0,255,0), 1, cv2.LINE_AA)
      print(cnt)
      cv2.imshow('frame', frame)
      cv2.waitKey(1)
      #frame = cv2.resize(frame, (1920, 1080), interpolation=cv2.INTER_AREA)
      tmp_name = save_path + str(cnt) + '.jpg'
      print('tmp_name',tmp_name)
      cv2.imwrite(tmp_name, frame)
      vout.write(frame)
print('cap end')
vout.release()
cap.release()