previous | next
Figure 2.
(A) An image of gray stripes 50 pixels on a side. (B) Vectors showing magnitude and direction of the brightness gradient at each pixel. (C) Vectors in B translated to the origin, showing strong grouping perpendicular to dominant edges, along with scaled eigenvectors and ellipse defined by them. (D) Edge fabric ellipse (EFE) derived by rotating ellipse in C 90°.
previous | next