i need help in vido tracking using matlab urgent

imaqhwinfo cam=imaqhwinfo; cam.InstalledAdaptors vid=videoinput('winvideo',1); preview(vid); while 1 im=getsnapshot(vid); [im_yellow num]=green(im); [B,L] = bwboundaries(im_yellow,'noholes'); imshow(label2rgb(L, @jet, [.5 .5 .5])) hold on for k = 1:length(B) boundary = B{k}; plot(boundary(:,2), boundary(:,1), 'w', 'LineWidth', 2) end x=boundary(:,1); y=boundary(:,2); abc = [x y ones(length(x),1)] \ -(x.^2+y.^2); a = abc(1); b = abc(2); c = abc(3); xc = -a/2; yc = -b/2; radius = sqrt((xc^2+yc^2)-c) imshow(im); hold on plot(yc,xc,'yx','LineWidth',2); theta = 0:0.01:2*pi; Xfit = radius*cos(theta) + xc; Yfit = radius*sin(theta) + yc;

plot(Yfit, Xfit); message = sprintf('The estimated radius is %2.3f pixels', radius); text(15,15,message,'Color','y','FontWeight','bold'); end

give erro about green

Answer 1

[Image Analyst]

You have not defined green by the time you try to use it, so of course it will throw an error.

[samir mohamd]

excuse me how can i definedt it ??? and plz can u send me ur gmail account