fujie_code/webcam.py

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import time
import cv2
import numpy as np
from PIL import Image
from yolo import YOLO
yolo = YOLO()
capture = cv2.VideoCapture(0)
# 1 就是外接摄像头 0 就是自己的摄像头
ref, frame = capture.read()
fps = 0.0
while (True):
t1 = time.time()
# 读取某一帧
ref, frame = capture.read()
if not ref:
break
# 格式转变BGRtoRGB
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
# 转变成Image
frame = Image.fromarray(np.uint8(frame))
# 进行检测
frame = np.array(yolo.detect_image(frame))
# RGBtoBGR满足opencv显示格式
frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
fps = (fps + (1. / (time.time() - t1))) / 2
# print("fps= %.2f" % (fps))
frame = cv2.putText(frame, "fps= %.2f" % (fps), (0, 40), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0), 2)
cv2.imshow("video", frame)
c = cv2.waitKey(1) & 0xff
# print(c)
if c == 113:
capture.release()
break
capture.release()
cv2.destroyAllWindows()