Track an object by color. It gets the object position, size and orientation.
obj_win = camshift(im, init_win) obj_win = camshift(im)
x
is the x-coordinate of the left-top window corner.
y
is the y-coordinate of the left-top window corner.
w
is the width of the window.
h
is the height of the window.x
is the x-coordinate of the left-top window corner.
y
is the y-coordinate of the left-top window corner.
w
is the width of the window.
h
is the height of the window.The function implements CAMSHIFT object tracking algorithm. When using it, please first use obj_win=camshift(im, init_win)
to initialize the tracker, then use obj_win=camshift(im)
to track the object.
n = aviopen(SCI+'/contrib/sivp-svn-trunk/images/red_car_video.avi'); im = avireadframe(n); //get a frame obj_win = camshift(im, [12, 6, 39, 13]); //initialize tracker while ~isempty(im), obj_win = camshift(im); //camshift tracking im = rectangle(im, obj_win, [0,255,0]); imshow(im); im = avireadframe(n); end; aviclose(n); | ![]() | ![]() |
"Computer vision face tracking as a component of a perceptual user interface", G.R. Bradski, in Workshop on Applications of Computer Vision, pages 214, Princeton, NJ, Oct. 1998.
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