منابع مشابه
Color scanner colorimetric design requirements
Device independent color requires that all color imaging devices “speak” in CIE colorimetric terms. A color image scanner is one component of the desktop color imaging chain that needs to be colorimetric if color is to be device independent. Most commercial color scanners are not colorimetric. Instead, they are built as color densitometers, emulating commercial graphic arts scanners. There are ...
متن کاملTarget-less Scanner Color Calibration
The lack of a scanner calibration target representative of the image medium (substrate and colorants) often limits the accuracy of scanner color calibration. In this paper, a color calibration method is presented for photographic input media that does not require a calibration target. Using characteristic spectral measurements from the image(s) to be scanned, a model for the spectra on the medi...
متن کاملSet theoretic estimation in color scanner characterization
A set theoretic approach for the spectral characterization of a color scanner is described. These devices usually employ three channels to obtain a device dependent RGB (red, green, blue) image. To display/print an image, the device dependent RGB values must be correctly transformed to the color space of the target device. To determine accurate and efficient transformations for a number of devi...
متن کاملColor scanner calibration via a neural network
The mathematical formulation of calibrating color scanners is presented. The mapping from scanned values to colorimetric values is inherently nonlinear. Calibration required approximating this nonlinear mapping. Neural networks are particularly suited to this task. Performance using an artificial neural network generated LUT is compared to that achieved by other commonly used methods.
متن کاملScanner characterization for color measurement and diagnostics
bstract. We propose a novel scanner characterization approach or applications requiring color measurement of hardcopy output in alibration, characterization, and diagnostics applications. The ethod is advantageous for common practical color printing sysems that use more than the minimum of three colorants necessary or subtractive color reproduction; printing with cyan (C), magenta M), yellow (Y...
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ژورنال
عنوان ژورنال: Journal of the Surface Finishing Society of Japan
سال: 1991
ISSN: 0915-1869,1884-3409
DOI: 10.4139/sfj.42.589