We propose a complete methodology for the control of the color responses of the input/output devices for color facsimile. An initial calibration of both scanner and printer is done offline. The color response of each device is then modelized by 3D non-linear transformations linking their specific RGB/YMC color space with the standard CIELAB color space. These transformations are then quickly ca...

In this paper, we examine the applicability limits of different methods compensation individual properties self-emitting displays with significant non-uniformity chromaticity and maximum brightness. The aim is to minimize perceived image non-uniformity. Compensation displayed based on minimizing distance between target (ideally displayed) simulated by calibrated screen. S-CIELAB model human vis...

The dependence of the photoinitiator concentration on degree conversion, mechanical properties and colour appearance dental materials was studied. Alterations due to changes in were-undertaken. Test samples prepared by photopolymerizing BisGMA TEGDMA presence camphorquinone (CQ) were submitted analyses, i.e., compressive diametral tensile strength Barcol hardness tests CIELAB analysis. showed a...

STATEMENT OF PROBLEM For restorations with excellent esthetics, an understanding of the optical properties of human dentin is needed. Little information is available on the translucency and color parameters of dentin and its relationship to tooth type and position. PURPOSE The purpose of this in vitro study was to investigate the translucency and CIELab color coordinates of human dentin in bo...

A desktop scanner was colorimetrically characterized to average CIELAB error of less than unity for Kodak Ektachrome transparencies and Ektacolor paper, and Fuji Photo Film Fujichrome transparencies and Fujicolor paper. Independent verification on spectrally similar materials yielded average ∆E*ab error of less than 2.1. The technique first modeled the image formation of each medium using eithe...