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Gary Keith Starkweather (January 9, 1938 – December 26, 2019) [ 1 ] was an American engineer who invented the laser printer and color management. Starkweather received a B.S. in physics from Michigan State University in 1960 and an M.S. in optics from the University of Rochester in 1966. In 1969, Starkweather invented the laser printer at the ...
Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and copiers produce on every printed page that identifies the specific device that was used ...
ColorChecker. The ColorChecker Color Rendition Chart (often referred to by its original name, the Macbeth ColorChecker[1] or simply Macbeth chart[2]) is a color calibration target consisting of a cardboard-framed arrangement of 24 squares of painted samples. The ColorChecker was introduced in a 1976 paper by McCamy, Marcus, and Davidson in the ...
The Farnsworth–Munsell 100 Hue Color Vision test is a color vision test often used to test for color blindness.The system was developed by Dean Farnsworth in the 1940s and it tests the ability to isolate and arrange minute differences in various color targets with constant value and chroma that cover all the visual hues described by the Munsell color system. [1]
Press check (printing) The printing press check is a step in the printing process. It takes place after a printing press is set up but before the print run is underway. Herzliya Airport (Israel) Runway location and Traffic Pattern chart (left) was erroneously printed as a result of "black layer" 180° misplacement.
The Philips circle pattern (also referred to as the Philips pattern or PTV Circle pattern) refers to a family of related electronically generated complex television station colour test cards. The content and layout of the original colour circle pattern was designed by Danish engineer Finn Hendil [da] (1939–2011) [1] in the Philips TV & Test ...
An Ishihara test image as seen by subjects with normal color vision and by those with a variety of color deficiencies. A pseudoisochromatic plate (from Greek pseudo, meaning "false", iso, meaning "same" and chromo, meaning "color"), often abbreviated as PIP, is a style of standard exemplified by the Ishihara test, generally used for screening of color vision defects.
Colorimetry is "the science and technology used to quantify and describe physically the human color perception ". [ 1 ] It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space tristimulus values and related quantities.