Centro de Investigación y Desarrollo Tecnológico en Electroquímica

About: Centro de Investigación y Desarrollo Tecnológico en Electroquímica is a based out in . It is known for research contribution in the topics: Cyclic voltammetry & Catalysis. The organization has 537 authors who have published 682 publications receiving 10382 citations. The organization is also known as: Centro de Investigacion y Desarrollo Tecnologico en Electroquimica & Center of Research and Technologic Development in Electrochemistry.

Contrast enhancement and image segmentation using a class of morphological nonincreasing filters

Abstract: In this paper, contrast enhancement and image segmentation are investigated using a class of morphological nonincreasing filters that can be considered toggle mappings. These nonincreasing filters are built using the traditional morphological gradients. These filters have interesting properties and give essential contrast to the images. We apply them sequentially between two or more given parameters in order to obtain intermediate results. This approach improves the control of the filtering process and provides other tools for contrasting images. We presented several new properties and one study of the invariant set of these filters. Using these new propositions, we show that it is possible to obtain better results in image segmentation when we apply the watershed transformation. Also, we propose an algorithm for segmenting images using this class of nonincreasing filters. The method is applied in a geodesic way using two different criteria for segmenting an image. We relate our results with a recent method in mathematical morphology called the flat zone approach and we compare our approach with another method in image processing, the so-called quadtree approach.