The purpose of this paper is to make a state of the art for color fidelity in computer graphics. Color fidelity includes three steps. The first one is the spectral rendering phase which attributes a spectrum to each pixel of a picture. During the second step, a spectral data is transformed into a set of tristimulus values in the XY Z color space. The purpose of the third step, called Color Repr...

In the Land Mondrian retinex experiment (Land, 1974) a multicoloured abstract scene consisting of rectangular patches is illuminated using three projectors. Each projector is fitted with a coloured filter which passes either predominantly longwave, medium-wave or short-wave light. The intensity of light from each projector may be independently varied. Constructing a computerised version of this...

In this paper we study up to what extent neural networks can be used accurately characterize LCD displays. Using a programmable colorimeter have taken extensive measures for DELL Ultrasharp UP2516D define training and testing data sets that are used, in turn, train validate two networks: one of them using tristimulus values, XYZ, as inputs the other color coordinates, xyY . Both same layer stru...

In the current study carboxylated polyvinyl chloride/silver (CPVC/Ag) nanocomposite film was prepared. Samples from CPVC/Ag (1.5cm × 1.5 cm) were treated with 25–200 kGy gamma dosages. The optical characterization of films has been investigated considering dosage by applying UV spectroscopy and colour difference studies. bandgap, refractive index, Urbach energy, dielectric parameters, chromatic...

In photorealistic image synthesis the radiative transfer equation is often not solved by simulating every wavelength of light, but instead by computing tristimulus transport, for instance using sRGB primaries as a basis. This choice is convenient, because input texture data is usually stored in RGB colour spaces. However, there are problems with this approach which are often overlooked or ignor...

To characterize color values measured by color devices (e.g., scanners, color copiers, and color cameras) in a deviceindependent fashion these values must be transformed to colorimetric tristimulus values. The measured RGB 3-vectors are not a linear transformation away from such colorimetric vectors, however, but still the best transformation between these two data sets, or between RGB values m...