Title :
A directional and parametrized transition detection algorithm based on morphological residues
Author :
Guimarães, Silvio Jamil Ferzoli ; Leite, Neucimar Jerônimo ; Couprie, Michel ; de Albuquerque Araujo, Arnaldo
Author_Institution :
NPDI/DCC, Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil
Abstract :
The boundary identification represents an interesting and difficult problem in image processing, mainly if two flat zones are separated by a gradual transition. The most common operators work very well for sharp edges, but fail for gradual transitions. In this work, we have done a characterization for gradient by a study of the opening residues. This characterization is useful to identify and classify sharp and gradual transitions between two consecutive flat zones according to a size criterion.
Keywords :
edge detection; image processing; mathematical morphology; boundary identification; flat zones; gradual transitions; image processing; morphological operators; morphological residues; sharp transitions; Computer graphics; Detection algorithms; Gray-scale; Image analysis; Image edge detection; Image processing; Image representation; Morphology; Regions;
Conference_Titel :
Computer Graphics and Image Processing, 2002. Proceedings. XV Brazilian Symposium on
Print_ISBN :
0-7695-1846-X
DOI :
10.1109/SIBGRA.2002.1167153