This study introduces new models and mathematical formulations describing the light scattering and ink spreading phenomena. Based on these new theoretical tools, the spectra of 100 real paper samples produced by two ink-jet printers were computed with an average prediction error of about in CIELAB.

To achieve high image quality throughout a digital imaging system, the first requirement is to ensure the quality of the device that captures real-world physical images to digital images, for example a desktop scanner. Several factors have influence on this quality: optical resolution, bit depth, spectral sensitivities, and acquisition noise, to mention a few. In this study we focus on the colo...

Tone reproduction is now widely used in the field of HDR imaging and image enhancement, especially to provide the proper luminance, so that captured images give the same sensation as the real scene. As a result, a high contrast and naturalness of colors can be obtained. In recent studies on tone reproduction with the objective of reproducing natural looking colors in digital images, an integrat...

Transformations in digital color imaging from RGB to CIELAB are compared between conventional ICC profiles and a newly developed neural network model. The accuracy of the transformations are computed in terms of Delta E and a comparison is made between the ICC profile and a neural network implemented in MATLAB. The transformations are used to characterize and test the color response of an Epson...

The classical definitions of color are well adapted to diffusing objects, whose color is almost independent of the viewing angle, and to very glossy object observed in the specular direction in respect to the light source. For glossy or iridescent objects, the color is difficult to characterize due to its dependence on the viewing direction. In order to cope with such objects and to represent t...

En el presente trabajo se determinaron los parámetros colorimétricos mediante sistema CIELAB y la densidad aparente por densitometría de rayos X en madera Guazuma crinita para obtener información su calidad uso como solida o transformada. La evaluación realizó tres niveles del eje axial (basal, medio apical) una plantación 5 8 años, zona Puerto Inca, departamento Huánuco, Perú. ambas ...

The wood used in the construction of musical instruments is carefully selected, being best quality from point view structure. However, depending on anatomical characteristics wood, resonance classified into classes. For example, sycamore maple with curly grains appreciated by luthiers for its three-dimensional optical effect. This study highlights statistical correlations between physical and a...