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flir_human_recognition.py
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flir_human_recognition.py
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import cv2
import numpy as np
def empty(a):
pass
def stackImages(scale,imgArray):
rows = len(imgArray)
cols = len(imgArray[0])
rowsAvailable = isinstance(imgArray[0], list)
width = imgArray[0][0].shape[1]
height = imgArray[0][0].shape[0]
if rowsAvailable:
for x in range ( 0, rows):
for y in range(0, cols):
if imgArray[x][y].shape[:2] == imgArray[0][0].shape [:2]:
imgArray[x][y] = cv2.resize(imgArray[x][y], (0, 0), None, scale, scale)
else:
imgArray[x][y] = cv2.resize(imgArray[x][y], (imgArray[0][0].shape[1], imgArray[0][0].shape[0]), None, scale, scale)
if len(imgArray[x][y].shape) == 2: imgArray[x][y]= cv2.cvtColor( imgArray[x][y], cv2.COLOR_GRAY2BGR)
imageBlank = np.zeros((height, width, 3), np.uint8)
hor = [imageBlank]*rows
hor_con = [imageBlank]*rows
for x in range(0, rows):
hor[x] = np.hstack(imgArray[x])
ver = np.vstack(hor)
else:
for x in range(0, rows):
if imgArray[x].shape[:2] == imgArray[0].shape[:2]:
imgArray[x] = cv2.resize(imgArray[x], (0, 0), None, scale, scale)
else:
imgArray[x] = cv2.resize(imgArray[x], (imgArray[0].shape[1], imgArray[0].shape[0]), None,scale, scale)
if len(imgArray[x].shape) == 2: imgArray[x] = cv2.cvtColor(imgArray[x], cv2.COLOR_GRAY2BGR)
hor= np.hstack(imgArray)
ver = hor
return ver
def getContours(img):
contours,hierarchy = cv2.findContours(img,cv2.RETR_EXTERNAL,cv2.CHAIN_APPROX_NONE)
for cnt in contours:
area = cv2.contourArea(cnt)
#print(area)
if (area>3 and area<250): #tra 5 e 250
cv2.drawContours(imgResult, cnt, -1, (255, 0, 0), 3)
peri = cv2.arcLength(cnt,True)
if (peri>300.0 and peri<2000.0):
approx = cv2.approxPolyDP(cnt,0.02*peri,True)
print(peri)
objCor = len(approx)
x, y, w, h = cv2.boundingRect(approx)
cv2.rectangle(imgResult, (x, y), (x + w, y + h), (0, 255, 0), 2)
cv2.namedWindow("TrackBars")
cv2.resizeWindow("TrackBars",640,240)
#cap = cv2.VideoCapture(0)
cv2.createTrackbar("Hue Min","TrackBars",0,179,empty)
cv2.createTrackbar("Hue Max","TrackBars",40,179,empty)
cv2.createTrackbar("Sat Min","TrackBars",60,255,empty)
cv2.createTrackbar("Sat Max","TrackBars",255,255,empty)
cv2.createTrackbar("Val Min","TrackBars",179,255,empty)
cv2.createTrackbar("Val Max","TrackBars",255,255,empty)
while True:
#success, img = cap.read()
img=cv2.imread("Resources/t2.jpg")
imgR=cv2.resize(img,(700,500))
imgHSV= cv2.cvtColor(imgR,cv2.COLOR_BGR2HSV)
h_min=cv2.getTrackbarPos("Hue Min","TrackBars")
h_max = cv2.getTrackbarPos("Hue Max", "TrackBars")
s_min = cv2.getTrackbarPos("Sat Min", "TrackBars")
s_max = cv2.getTrackbarPos("Sat Max", "TrackBars")
v_min = cv2.getTrackbarPos("Val Min", "TrackBars")
v_max = cv2.getTrackbarPos("Val Max", "TrackBars")
#print(h_min,h_max,s_min,s_max,v_min,v_max)
lower = np.array([h_min,s_min,v_min])
upper = np.array([h_max,s_max,v_max])
mask = cv2.inRange(imgHSV,lower,upper)
imgResult=cv2.bitwise_and(imgR,imgR,mask=mask)
#cv2.imshow("imgHSV", imgHSV)
#cv2.imshow("mask",mask)
#cv2.imshow("result",imgResult)
imgResultCanny= cv2.Canny(imgR,200,200)
getContours(imgResultCanny)
imgStack= stackImages (0.6,([imgR,imgHSV],[imgResultCanny,imgResult]))
cv2.imshow("imagestack",imgStack)
if cv2.waitKey(1) & 0xFF ==ord('q'):
break