Color Calibration of Scanners Using Polynomial Transformation

Digital imaging is a rapid growing area with the developments in computer technology. Digital color use has become a conventional tool in many disciplines, such as cartography remote sensing and photogrammetry. The need for better color quality enforces digital imaging industry to produce devices with less color distortions. Despite the today’s advanced level of technology, it is known that input and output devices cause color distortions, which depends on the quality of the device itself. Scanners, being peripheral devices that capture the image of an object, are mostly used input devices in digital imaging. In this study color accuracy of desktop scanners is handled. A method based on polynomial transformation, which makes possible to map device dependent colors to device independents ones, is introduced. Tests on five different desktop scanners show the evident applicability of the method.