Título
Contrast enhacenment of RGB color images by histogram equalization of color vectors' intensities
Autor
Jair Cervantes Canales
Farid García Lamont
ASDRUBAL LOPEZ CHAU
JOSE SERGIO RUIZ CASTILLA
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
Mejora del contraste de imagenes de color RGB
The histogram equalization (HE) is a technique developed for image contrast enhancement of grayscale images. For RGB (Red, Green, Blue) color images, the HE is usually applied in the color channels separately; due to correlation between the color channels, the chromaticity of colors is modified. In order to overcome this problem, the colors of the image are mapped to different color spaces where the chromaticity and the intensity of colors are decoupled; then, the HE is applied in the intensity channel. Mapping colors between different color spaces may involve a huge computational load, because the mathematical operations are not linear. In this paper we present a proposal for contrast enhancement of RGB color images, without mapping the colors to different color spaces, where the HE is applied to the intensities of the color vectors. We show that the images obtained with our proposal are very similar to the images processed in the HSV (Hue, Saturation, Value) and L*a*b* color spaces.
Editor
Springer
Fecha de publicación
15 de agosto de 2018
Tipo de publicación
Artículo
Recurso de información
Fuente
0302-9743
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Repositorio Orígen
REPOSITORIO INSTITUCIONAL DE LA UAEM
Descargas
776