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A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
Increase contrast of yellow objects A 25 Increase contrast of brown objects B2 58 Increase contrast of red objects; commonly known as B C5 47 Photograph blue as white; replaces C4 (#49) with a comparable filter factor as updated A and B2 F 29 Blueprints; photograph red as white Three-color separation A 25
Tone mapped high-dynamic-range (HDR) image of St. Kentigerns Roman Catholic Church in Blackpool, Lancashire, England, UK. Tone mapping is a technique used in image processing and computer graphics to map one set of colors to another to approximate the appearance of high-dynamic-range (HDR) images in a medium that has a more limited dynamic range.
The ColorChecker Classic chart is a rectangular card measuring about 11 by 8.25 inches (27.9 by 21.0 cm), or in its original incarnation about 13 by 9 inches (33 by 23 cm), an aspect ratio approximately the same as that of 35 mm film. [5]
Melton Meinl Weston is a manufacturer of brass instruments owned by Buffet Crampon. It is based in Geretsried in Germany, and formerly based in Kraslice . Their main brands are Melton and Meinl Weston , with current instruments bearing both logos.
An achromatic white is a white color in which the red, green, and blues codes are exactly equal. The web colors white and white smoke are achromatic colors. A chromatic shade of white is a white color in which the red, green, and blue codes are not exactly equal, but are close to each other, which is what makes it a shade of white.
Flax or flaxen is a pale yellowish-gray, the color of straw or unspun dressed flax.The first recorded use of flax as a color name in English was in 1915, [2] but "flaxen" had been used to describe hair color in David Copperfield, by Charles Dickens in 1849: Mr. Omer's granddaughter, Minnie, is described as "a pretty little girl with long, flaxen, curling hair."
An example of how text with low colour-contrast appear to someone with the commonest form of colour-blindness, red/green. If you have default settings on Wikipedia, and are reading this page on a screen, then you probably can't read the following: This is a secret message. because it has blue text on a blue background.