I have a code that doesn't works to white and black color.
On the code I select the ROI, and after that this code is supposed to keep tracking the ball, but it doesn't happen
I have this video : http://tinypic.com/r/2q1rk1g/8
and this code :
import numpy as np
import cv2
cap = cv2.VideoCapture('video.avi')
ret,frame = cap.read()
r,h,c,w = 490,50,895,50 # It is where the ball is.
track_window = (c,r,w,h)
frame = cv2.cvtColor(frame, cv2.COLOR_GRAY2BGR)
roi = frame[r:r+h, c:c+w]
hsv_roi = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
mask = cv2.inRange(hsv_roi, np.array((0., 60.,32.)), np.array((180.,255.,255.)))
roi_hist = cv2.calcHist([hsv_roi],[0],mask,[180],[0,180])
cv2.normalize(roi_hist,roi_hist,0,255,cv2.NORM_MINMAX)
term_crit = ( cv2.TERM_CRITERIA_EPS | cv2.TERM_CRITERIA_COUNT, 10, 1 )
while(1):
ret ,frame = cap.read()
if ret == True:
hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
dst = cv2.calcBackProject([hsv],[0],roi_hist,[0,180],1)
ret, track_window = cv2.meanShift(dst, track_window, term_crit)
x,y,w,h = track_window
img2 = cv2.rectangle(frame, (x,y), (x+w,y+h), 255,2)
cv2.imshow('img2',img2)
k = cv2.waitKey(60) & 0xff
if k == 27:
break
else:
cv2.imwrite(chr(k)+".jpg",img2)
else:
break
cv2.destroyAllWindows()
cap.release()
I have no clue about what should I do, I tried to convert from gray to bgr, but it didn't works.
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