Índice de contraste morfológico basado en el análisis de los contornos y el fondo de la imagen
Morphological Contrast Index based on an Analysis of Contours and Image Background
Angélica R. Jiménez Sánchez1, Jorge D. Mendiola Santibañez1,2, Gilberto Herrera Ruíz1 e Israel Santillan1,2
1 División de Investigación y Posgrado de la Facultad de Ingeniería, Universidad Autónoma de Querétaro, Centro Universitario S/N. C.P. 76010, Querétaro, México. Correo: rosariojs@uaq.mx, mendijor@uaq.mx, gherrera@uaq.mx, santilis@gmail.com
]]> 2 Universidad Politécnica de Querétaro, Carretera Estatal 420 S/N, El Rosario, El Marqués, C.P. 76240, Querétaro, México.
Artículo recibido el 23/08/2010.
Aceptado el 16/08/2011.
Resumen
En este artículo se presenta un índice para cuantificar el contraste que se percibe en una imagen. El índice está basado en la ley de Weber y toma en consideración una estimación del fondo de la imagen mediante la erosión de la apertura por reconstrucción. El desempeño de la propuesta se ilustra con un conjunto de imágenes procesadas por un mapeo de contraste y se compara con dos medidas de contraste dadas en la literatura.
Palabras clave: Contraste morfológico, apertura por reconstrucción, índice de contraste, ley de Weber.
Abstract
]]> In this work, a contrast index for quantifying the perceived contrast in an image is proposed. The index is based on Weber's law and takes into account background estimation through the erosion of opening by reconstruction. The performance of our proposal is illustrated with a set of images processed by contrast mapping and compared with two contrast measures given in the literature.Keywords: Morphological contrast, opening by reconstruction, contrast index, Weber's law.
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