Your friend, the CIElab color model

Article Abstract:

A color model is a way of describing colors as numbers. The most common models used in computing are RGB, found in scanners, monitors and digital cameras, and CMYK, used in process-color printing. Both are device-dependent, and matching colors across devices is a constant problem for those involved in desktop publishing. The French Commission Internationale de l'Elcairage (CIE), or International Committee on Illumination, developed the CIELAB model in the 1970s. CIELAB is the model used by Adobe PostScript and Photoshop to represent color and is the fundamental basis of all color-management systems today. It is also used for ICC (International Color Consortium) device profiles. The main attraction of CIELAB is its device independence, which makes it useful for translating in and out of reference models. CIELAB is also idea for performing color correction by optimizing mathematical values.

Management, Column, Technology overview, Software architectures, Software Architecture

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ColorBlind ICC Print 1.0

Article Abstract:

Color Solutions' $800 ColorBlind ICC Print 1.0 provides a great color profiling utility, though it is not as good a value as the $495 ColorSynergy. ColorBlind's profiles produce much better images than documents printed without the profiles. The program has color correction tools not found in other utilities. It has some nice features like the statistics window, which lets users see how each color patch has been profiled by a device and provides a preview of potential problems. However, unlike ColorSynergy, ColorBlind ICC Print cannot export profile information as Adobe Separation Table files or as PostScript Level2 color rendering dictionaries. Procedures for using ColorBlind to create profiles of devices are straightforward, but, as with similar products in the market, the documentation is poorly written and edited.

Image processing, Image processing software, Color Solutions Inc., ColorBlind ICC Print (Color processing software)

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Pantone Hexwrench 1.0 (image-processing software) (Software Review)(Evaluation)

Article Abstract:

Pantone's $499 Hexwrench 1.0 color processing software, an Adobe Photoshop plug-in, lets designers transform RGB images into six-color Hexachrome separations, greatly expanding the range of printed color past CMYK. HexWrench's onscreen preview feature lets users exert total control over the Hexachrome separation process, ensuring the best color reproduction possible. In addition, with HexWrench's split-screen feature, users can compare the Hexachrome image and the CMYK image, adjusting color-correction controls as necessary. The resulting image can be saved either as a six-channel DCS EPS file, importable into QuarkXPress or Adobe PageMaker; or in RGB TIFF mode, with an embedded profile reflecting present separation settings.

Design and construction, Pantone Inc., HexWrench (Color processing software)

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