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CitySpace.py
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CitySpace.py
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#import statements
from __future__ import print_function
from flask import Flask
from flask import jsonify
from flask_restful import Api, Resource, reqparse
import numpy as np
import cv2
from imutils.object_detection import non_max_suppression
from imutils import paths
import argparse
import imutils
import threading
#app setup
app = Flask(__name__)
api = Api(app)
#current capacities
result = 0
def video_detect():
cap = cv2.VideoCapture(0)
cap.set(cv2.CAP_PROP_FPS, 1)
hog = cv2.HOGDescriptor()
hog.setSVMDetector(cv2.HOGDescriptor_getDefaultPeopleDetector())
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (640, 480))
while (cap.isOpened()):
ret, frame = cap.read()
if ret == True:
counter = 0
(rects, weights) = hog.detectMultiScale(frame, winStride=(4, 4),padding=(8, 8), scale=1.05)
rects = np.array([[x, y, x + w, y + h] for (x, y, w, h) in rects])
pick = non_max_suppression(rects, probs=None, overlapThresh=0.65)
for (xA, yA, xB, yB) in pick:
counter += 1
print(counter)
cv2.rectangle(frame, (xA, yA), (xB, yB), (0, 255, 0), 2)
if (counter == 0):
print(counter)
out.write(frame)
return counter
cv2.imshow('frame', frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
else:
break
cap.release()
out.release()
cv2.destroyAllWindows()
#app routing
@app.route('/')
def getCapacities():
result = video_detect()
return jsonify(result)
#initialize app
app.run()