The Harris interest point detector [6] is a classic technique to

robustly detect in a scene points that have strong orthogonal

image gradients. Such points are more likely to be tracked

across an image sequence.

To compute and overlay the detected corners on a street scene,

>> C = iharris(building);

>> idisp(building);

>> markfeatures(C, 50, .wo.);

will display the 50 strongest corners as white circles (see

Figure 9). The function markfeatures() with output

arguments will be assigned the pixel coordinates of the corner