比赛

1:pyzbar实现二维码扫面获取信息

import pyzbar.pyzbar as pyzbar
from PIL import Image


image = "test.jpg"

img = Image.open(image)

barcodes = pyzbar.decode(img)

for barcode in barcodes:
    barcodeData = barcode.data.decode("utf-8")
    print(barcodeData)

2:打开摄像头获取人脸照片并保存

import cv2

cap = cv2.VideoCapture(0)
while(1):  
    ret, frame = cap.read()
    cv2.imshow("capture", frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        cv2.imwrite("/opt/code/image/fangjian2.jpeg", frame)
        break
cap.release()
cv2.destroyAllWindows()

3:对视频截取30张图片

import cv2
import os
 
cap = cv2.VideoCapture("Test.mp4")
 
save_path = os.makedirs("tupian")
 
imgPath = ""
 
sum = cap.get(7)
 
time = (int)(sum / 30)

sum = 0

i = 0
 
while True:
    ret, frame = cap.read()
    if ret == False:
        break
    sum += 1
    if sum % time == 0 and i < 30:
        i += 1
 
        imgPath = "tupian/%s.jpg" % str(i)
     
        cv2.imwrite(imgPath, frame)
 
print("finish!")  # 提取结束,打印finish

 

 

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