1.
Compute gradient magnitude and direction at each pixel.
2. For
high gradient magnitude points, assign direction labels
to two symbolic
images for two different
quantizations.
3. Find connected components of each symbolic
image.
• Each pixel belongs to 2 components, one for
each symbolic image.
•
• Each pixel votes for its longer
component.
•
• Each component receives a count of pixels
who voted for it.
•
• The components that receive majority
support are selected.