Tracking w/ blob detection, morphological operation (Togeather) frames = {avi.cdata} uses the cdata from the video file fg = extractForeground(frames) do foreground extraction cmap = colormap(gray) for i = 1:length(fg) temp0{i} = edge(fg{i}, canny , 0.99) + fg{i} temp2 = temp0{i} temp2 = cat(3,temp2,temp2,temp2) fgs = rgb2gray(temp2) sedisk = strel( square ,10) fgs = imclose(fgs, sedisk) fgs = imfill(fgs, holes ) RLL = bwlabel(fgs) stats = regionprops(RLL, basic , Centroid ) fig = figure(1),imshow(RLL) hold on for n = 1:length(stats) if(stats(n).Area > 100) plot(stats(n).Centroid(1), stats(n).Centroid(2), r* ) end end hold off

Low complexity background subtraction using frame difference method.doc

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