18% Gray card (Note: For a precise rendering on a sRGB monitor, see the table in the Middle gray article).Image before (left) and after (right) adjustment with gray card (middle)Gray card from 100 - 0 in 30 steps.
A gray card is a middle gray reference, typically used together with a reflective light meter, as a way to produce consistent image exposure and/or color in video production, film and photography.
A gray card is a flat object of a neutral gray color that derives from a flat reflectance spectrum. A typical example is the Kodak R-27 set, which contains one 8x10" card and one 4x5" card which have 18% reflectance across the visible spectrum, and a white reverse side which has 90% reflectance. Note that flat spectral reflectance is a stronger condition than simply appearing neutral; this flatness ensures that the card always has the same color as its illuminant (see metamerism).
A graycard is a middle gray reference, typically used together with a reflective light meter, as a way to produce consistent image exposure and/or color...
graycard or a color reference card such as a ColorChecker. On the assumption that 18% is similar to the average reflectance of a scene, a graycard can...
2015. "About the Index". IPNI. IPNI come from three sources: ..., the GrayCard Index (GCI) HUH.harvard.edu: Harvard University Herbaria website Harvard...
1900, card photographs generally had a much larger area surrounding the print quite often with an embossed frame around the image on heavy, graycard stock...
derived from actual film grain samples taken from film, shot against a graycard. Because film grain is difficult to encode because of its random nature...
cameras is a button which one may press when the camera is pointed at a graycard or other neutral colored object. This captures an image of the ambient...
Clynderwen, Pembrokeshire, Wales. After publishing the credit card info on his websites, Gray posted a personal message saying law enforcers would never...
Natalie Renée McIntyre (born September 6, 1967), known by her stage name Macy Gray, is an American R&B and soul singer and actress. She is known for her distinctive...
of the major arcana. The work of Eden Gray and others in the 1960s led to an explosion of popularity in tarot card reading beginning in 1969. Stuart R....
Sonny Douglas Gray (born November 7, 1989) is an American professional baseball pitcher for the St. Louis Cardinals of Major League Baseball (MLB). He...
neutral test card, or graycard. At best, a flat card is an approximation to a three-dimensional scene, and measurement of a test card may lead to underexposure...
An ace is a playing card, die or domino with a single pip. In the standard French deck, an ace has a single suit symbol (a heart, diamond, spade, or a...
developed its first paper charge card in 1958, gold card in 1966, green card in 1969, platinum card in 1984, and Centurion Card in 1999. The "Don't Leave Home...
so Gray agrees to help him take down Card. Back in Miami, Gray lies to Card and makes him believe that Michael and his friends are dead. As Gray works...
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