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Fecha
2025-06-18
Derechos de acceso
info:eu-repo/semantics/openAccess
Título de la revista
ISSN de la revista
Título del volumen
Editorial
MDPI
Citas
Resumen
Creating grayscale images from a color reality has been an inherent human practice since ancient times, but it became a technological challenge with the advent of the first black-and-white televisions and digital image processing. Decolorization is a process that projects visual information from a three-dimensional feature space to a onedimensional space, thus reducing the dimensionality of the image while minimizing the loss of information. To achieve this, various strategies have been developed, including the application of color channel weights and the analysis of local and global image contrast, but there is no universal solution. In this paper, we propose a bio-inspired approach that combines findings from neuroscience on the architecture of the visual system and color coding with evidence from studies in the psychology of art. The goal is to simplify the decolorization process and facilitate its control through color-related concepts that are easily understandable to humans. This new method organizes colors in a scale that links activity on the retina with a system of opponent and complementary channels, thus allowing the adjustment of the perception of warmth and coolness in the image. The results show an improvement in chromatic contrast, especially in the warmth and coolness categories, as well as an enhanced ability to preserve subtle contrasts, outperforming other approaches in the Ishihara test used in color blindness detection. In addition, the method offers a computational advantage by reducing the process through direct pixel-level operation.
Descripción
The registered version of this article, first published in “Journal of Imaging; 11, 2025", is available online at the publisher's website: MDPI, https://doi.org/10.3390/jimaging11060199
La versión registrada de este artículo, publicado por primera vez en “Journal of Imaging; 11, 2025", está disponible en línea en el sitio web del editor: MDPI, https://doi.org/10.3390/jimaging11060199
La versión registrada de este artículo, publicado por primera vez en “Journal of Imaging; 11, 2025", está disponible en línea en el sitio web del editor: MDPI, https://doi.org/10.3390/jimaging11060199
Categorías UNESCO
Palabras clave
decolorization, color2gray, color warmth–coolness adjustment
Citación
Sanchez-Cesteros O, Rincon M. Decolorization with Warmth–Coolness Adjustment in an Opponent and Complementary Color System. Journal of Imaging. 2025; 11(6):199. https://doi.org/10.3390/jimaging11060199
Centro
E.T.S. de Ingeniería Informática
Departamento
Inteligencia Artificial