在最后一个if语句中获取错误。由于break在循环外,因此显示语法错误。按下q时,代码无法中断语句。代码来自github,抱歉未提供github链接。期待一些简单的解决方案。一些软件包已经导入,例如cv2,numpy和pandas
first_frame = None
status_list = [None, None]
times = []
df = pandas.DataFrame(columns=["start", "End"])
video = cv2.VideoCapture(0)
while True:
check, frame = video.read()
status = 0
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
gray = cv2.GaussianBlur(gray, (21, 21), 0)
if first_frame is None:
first_frame = gray
continue
delta_frame = cv2.absdiff(first_frame, gray)
thresh_delta = cv2.threshold(delta_frame, 30, 255, cv2.THRESH_BINARY)[1]
thresh_delta = cv2.dilate(thresh_delta, None, iterations=0)
countours, hierarchy = cv2.findContours(
thresh_delta.copy(), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
for contour in countours:
if cv2.contourArea(contour) < 1000:
continue
status = 1
(x, y, w, h) = cv2.boundingRect(contour)
cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 3)
status_list.append(status)
status_list = status_list[-2:]
if status_list[-1] == 1 and status_list[-2] == 0:
times.append(datetime.now())
if status_list[-1] == 0 and status_list[-2] == 1:
times.append(datetime.now())
cv2.imshow("frame", frame)
cv2.imshow("capturing", gray)
cv2.imshow("delta", delta_frame)
cv2.imshow("thresh", thresh_delta)
for i in range(0, len(times), 2):
df = df.append({"start": times[i], "End": times[i + 1]}, ignore_index=true)
df.to_csv("Times.csv")
if cv2.waitKey(1) & 0xFF == ord('q'): # press q to quit
break
video.release()
cv2.destroyAllWindows()
if cv2.waitKey(1) & 0xFF == ord('q'): # press q to quit
break