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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 8 in × 10 in (20 cm × 25 cm) card and one 4 in × 5 in (10 cm × 13 cm) card, each with an 18% reflectance across the visible spectrum, and a white reverse side with a 90% reflectance.
Middle gray. 50% CIELAB lightness. ( Y = 18.4%) In photography, painting, and other visual arts, middle gray or middle grey is a tone that is perceptually about halfway between black and white on a lightness scale; [1] in photography and printing, it is typically defined as 18% reflectance in visible light. [2] [3]
In photography and image processing, color balance is the global adjustment of the intensities of the colors (typically red, green, and blue primary colors ). An important goal of this adjustment is to render specific colors – particularly neutral colors like white or grey – correctly. Hence, the general method is sometimes called gray ...
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The color of your car can have a big impact on how much money you can sell it for later. Consider these colors carefully.
This is because reflected-light meters are calibrated for an average scene reflectance of 18 percent and can't "know" when a scene has non-average reflectance. See also Gray card and Light meter . Guide number distances are always measured from the flash device to the subject; if the flash device is detached from the camera, the position of the ...
Bankrate insight. As of March 2024, for fiscal year 2024, 29.9 percent of 7(a) loans were approved for $50,000 and under. New businesses with under two years of experience made up just 18 percent ...
EBU Colour Bars transmitted from a digital point-to-point satellite link ( DVB-S) operated by Globecast. The EBU colour bars are a television test card used to check if a video signal has been altered by recording or transmission, and what adjustments must be made to bring it back to specification. It is also used for setting a television ...
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