def count(mask, frame):
global areaTH, cars, pt1, pt2, upLimit, downLimit, lineUp, lineDown, counterDown, counterUp, pid, max_p_age
contours, _ = cv2.findContours(
mask, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_NONE)
for cnt in contours:
area = cv2.contourArea(cnt)
if area > areaTH:
M = cv2.moments(cnt)
cx = int(M['m10']/M['m00'])
cy = int(M['m01']/M['m00'])
x, y, w, h = cv2.boundingRect(cnt)
newCar = True
if cy in range(upLimit, downLimit):
for i in cars:
if abs(cx - i.getX()) <= w and abs(cy - i.getY() <= h):
newCar = False
i.updateCoords(cx, cy)
if i.going_UP(lineDown, lineUp) == True:
counterUp += 1
print(f'up: {str(counterUp)}')
elif i.going_DOWN(lineDown, lineUp) == True:
counterDown += 1
print(f'down: {str(counterDown)}')
break
if i.getState() == '1':
if i.getDir() == 'down' and i.getY() > downLimit:
i.setDone()
elif i.getDir() == 'up' and i.getY() < downLimit:
i.setDone()
if i.timedOut():
index = cars.index(i)
cars.pop(index)
del i
if newCar == True:
p = Car.MyCar(pid, cx, cy, max_p_age)
cars.append(p)
pid += 1
cv2.circle(frame, (cx, cy), 5, (0, 0, 255), -1)
cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 2)
for i in cars:
cv2.putText(frame, str(i.getId()), (i.getX(), i.getY()),
font, 0.3, i.getRGB(), 1, cv2.LINE_AA)
# TRACKING #
#################
M = cv2.moments(cnt)
cx = int(M['m10']/M['m00'])
cy = int(M['m01']/M['m00'])
x,y,w,h = cv2.boundingRect(cnt)
new = True
for i in cars:
if abs(x-i.getX()) <= w and abs(y-i.getY()) <= h:
# the object is close to one that was already detected before
new = False
i.updateCoords(cx,cy) #Update coordinates on the object and resets age
break
if new == True:
p = Car.MyCar(pid,cx,cy, max_p_age)
cars.append(p)
pid += 1
cv2.circle(frame,(cx,cy), 5, (0,0,255), -1)
img = cv2.rectangle(frame,(x,y),(x+w,y+h),(0,255,0),2)
cv2.drawContours(frame, cnt, -1, (0,255,0), 3)
for i in cars:
if len(i.getTracks()) >= 2:
pts = np.array(i.getTracks(), np.int32)
pts = pts.reshape((-1,1,2))
frame = cv2.polylines(frame,[pts],False,i.getRGB())
if i.getId() == 9:
print (str(i.getX()), ',', str(i.getY()))
cv2.putText(frame, str(i.getId()),(i.getX(),i.getY()),font,0.3,i.getRGB(),1,cv2.LINE_AA)
#If state is '1', where '1' is already counted and '0' is default (not yet counted)
if i.getState() == '1':
#If direction is up/down and Y coordinate is past tracking limits, set done
if i.getDir() == 'down' and i.getY() > down_limit:
i.setDone()
elif i.getDir() == 'up' and i.getY() < up_limit:
i.setDone()
#If car has not been detected in max_c_age amount of frames...
if i.timedOut():
#Pop car from index, then delete the entry
index = cars.index(i)
cars.pop(index)
del i
if new == True:
#Create new object from class Car for tracking purposes
c = Car.MyCar(cid, cx, cy, max_c_age)
#Append new object to array
cars.append(c)
#Increment car ID counter
cid += 1
#Draw green contours around the object with a red dot identifying the middle
cv2.circle(frame, (cx, cy), 5, (0, 0, 255), -1)
img = cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 255, 0), 2)
cv2.drawContours(frame, cont, -1, (0, 255, 0), 3)
#This loop draws lines showing vectors of objects between frames
for i in cars:
if len(i.getTracks()) >= 2:
cts = np.array(i.getTracks(), np.int32)
cts = cts.reshape((-1, 1, 2))
