final_cam.py

import cv2
import requests

interval = 50

def movement(img, total, iteration):
    height = img.shape[0]
    width = img.shape[1]
    for i in range(0, height):
        for j in range(0, width):
            pixel = img[i][j]
            if (pixel != 0):
                total += 1

    if(iteration == interval):
        score = 4 * (total - 11100000)
        score = (score / 4260000) * 100
        if (score >= 100):
            score = 100
        elseif (score <= 0):
            score = 0
        total = 0
        iteration = 0

        print(score)
        url = "http://localhost:5000/send-camera"
        myobj = {"cameraValue": score}
        requests.post(url, myobj)

    iteration += 1

    return total, iteration


cv2.namedWindow("cam")
vc = cv2.VideoCapture(0)  # opens default camera (could also select a file)

if vc.isOpened():  # try to get the first frame
    rval, firstFrame = vc.read()
else:
    rval = False
    print("Playback error!")

firstGray = cv2.cvtColor(firstFrame, cv2.COLOR_BGR2GRAY)
# to get rid of gaussian noise
firstGray = cv2.GaussianBlur(firstGray, (5, 5), 0)

iteration = 0
total = 0

while rval:
    rval, frame = vc.read()  # reads frame

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    gray = cv2.GaussianBlur(gray, (5, 5), 0)  # to get rid of gaussian noise

    change = cv2.absdiff(firstGray, gray)

    cv2.imshow("cam", change)
    key = cv2.waitKey(20)
    if key == 27:  # exit stream on ESC
        break

    rval, frame = vc.read()  # reads frame

    firstGray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    firstGray = cv2.GaussianBlur(firstGray, (5, 5), 0)

    total, iteration = movement(change, total, iteration)
    # do something with score ^^

vc.release()  # cleans up
cv2.destroyWindow("cam")