Amazing-Python-Scripts

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import time
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from datetime import datetime
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import cv2
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import pandas
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video = cv2.VideoCapture(0)
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first_frame = None
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status_list = [None, None]
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time = []
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df = pandas.DataFrame(columns=["Start", "End"])
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cnts = [[0, 0], [255, 0], [255, 255], [0, 255]]
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while True:
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    check, frame = video.read()
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    status = 0
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    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
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    gray = cv2.GaussianBlur(gray, (21, 21), 0)
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    if first_frame is None:
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        first_frame = gray
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        continue
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    delta_frame = cv2.absdiff(first_frame, gray)
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    thresh_data = cv2.threshold(delta_frame, 30, 255, cv2.THRESH_BINARY)[1]
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    thresh_delta = cv2.dilate(thresh_data, None, iterations=5)
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    (cnts, _) = cv2.findContours(thresh_data.copy(),
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                                 cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
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    for contour in cnts:
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        if cv2.contourArea(contour) < 10000:
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            continue
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        status = 1
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        (x, y, w, h) = cv2.boundingRect(contour)
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        cv2.rectangle(frame, (x, y), (x+w, y+h), (0, 255, 0), 3)
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    status_list.append(status)
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    if status_list[-1] == 1 and status_list[-2] == 0:
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        time.append(datetime.now())
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    if status_list[-1] == 0 and status_list[-2] == 1:
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        time.append(datetime.now())
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    cv2.imshow("Capturing", gray)
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    cv2.imshow("Delta Frame", delta_frame)
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    cv2.imshow("Threshold Frame", thresh_data)
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    cv2.imshow("Colour Frame", frame)
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    key = cv2.waitKey(1)
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    if key == ord('q'):
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        if status == 1:
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            time.append(datetime.now())
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        break
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print(time)
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for i in range(0, len(time), 2):
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    df = df.append({"Start": time[i], "End": time[i+1]}, ignore_index=True)
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df.to_csv("Times.csv")
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video.release()
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cv2.destroyAllWindows
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