A range of the reproducible color, i.e., color gamut, of the conventional display devices such as CRTs (cathode ray tubes) and LCDs (liquid crystal displays) is sometimes insufficient for reproducing the natural color of an object through color imaging systems. In this paper, a six-primary color display is developed to reproduce the expanded color gamut, by using two conventional RGB projectors...

introduction: high percentage of orchard products, such as apples, is wasted due to mechanical damages that cause fruit quality loss. damages due to static or dynamic pressure or impact are among very common mechanical damages that begin to bruise fruits. post-harvest bruise damage is a major cause for the loss in fruit quality. bruising means damaging fruit tissue and consequently physical cha...

This paper proposes a solution to the problem of finding the boundary of the gamut of a color printing device or of a color image. A surface triangulation of a set of points in the color space is computed using an alpha-shape, which is a generalization of a convex hull applicable also to nonconvex solids. The desired level of detail can be controlled by means of an alpha parameter. A method for...

A procedure for an efficient recovering of reflectance spectra of Acrylic paint samples from CIE tristimulus color values is described. By fixing a certain criteria based on color difference value, the proposed technique preliminarily selects a series of suitable samples from a main dataset containing the reflectance values of a series of different Acrylic paint samples, based on the color ...

Visual processing of color starts at the cones in the retina and continues through ventral stream visual areas, called the parvocellular pathway. Motion processing also starts in the retina but continues through dorsal stream visual areas, called the magnocellular system. Color and motion processing are functionally and anatomically discrete. Previously, motion processing areas MT and MST have ...

Cortical area V4 in monkeys contains neurons that respond selectively to particular colors. It has been controversial how these color-selective neurons are spatially organized in V4. One view asserts that color-selective neurons are organized in columns with different colors orderly mapped across the cortex, whereas other studies have found no evidence for columnar organization or any other clu...

Nowadays, the underwater researches become one of the distinguish researches since the ocean are considered as the lungs of this world. Therefore, underwater image processing researches should be encouraged especially in the differences of color analysis between underwater and on the air objects. The colors of objects are changed when the objects are put underwater. This is due to discoloration...

We present a method for recovering the shape of a single Lambertian surface, with unknown but uniform re ectance, from a single RGB image of the object. The method depends upon the linearity of the relationship between RGB sensor responses and surface normal directions that stems from the Lambertian model. The algorithm follows closely upon work on the photometric stereo method. However, that m...

This paper focuses on the task of automatic visual inspection of color uniformity on the surface of integrated circuits (IC) wafers arising from the layering process. The oxide thickness uniformity within a given wafer with a desired target thickness is of great importance for modern semiconductor circuits with small oxide thickness. The non-uniform chemical vapor deposition (CVD) on a wafer su...