An all-metal structural color printing platform based on aluminum plasmonic metasurfaces is proposed and demonstrated with high color performance using only a one-step etching process on aluminum surface. A wide visible color range is realized with the designed metallic square-shaped disk arrays by simply adjusting the geometrical parameters of the disk etching depth, disk width and unit cell p...

introduction: machine vision, which uses image processing techniques, is a branch of artificial intelligence that simulates human vision. these systems can be used for quality control, sorting and grading of agricultural products. unlike engineering materials, agricultural fruits are living tissues that continue living even after they are harvested from trees or bushes. therefore, the post-harv...

PURPOSE Surface color is one of the main criteria to obtain an ideal esthetic. Many factors such as the type of the material, surface specifications, number of firings, firing temperature and thickness of the porcelain are all important to provide an unchanged surface color in dental ceramics. The aim of this study was to evaluate the color changes in dental ceramics according to the material t...

Alkyd resins were prepared into four different sets by varying the percentage concentrationof the glycerol content. Various properties such as the viscosity, Surface drying time, solubilityand color of the alkyd resins were evaluated for the various sets. The alkyd resin with the highestglycerol content was the most viscous, brownish in color and having the highest molecularweight this is due t...

A number of methods have been proposed to separate a color signal into its components: illumination spectral power distribution and surface spectral reflectance. Most of these methods usually use a minimization technique from solely a single color signal, which works in theoretical framework but is not effective for real data. The reason is it lacks the constraints necessary to make the iterati...

We examined whether perception of color saturation and lightness depends on the three-dimensional (3D) shape surface gloss surfaces rendered to have different hues. In Experiment 1, we parametrically varied specular roughness predominantly planar with mesoscopic relief heights. The orientation was relative light source observer. Observers matched perceived chroma (effectively saturation) using ...