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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.
Earth tone is a term used to describe a palette of colors that are similar to natural materials and landscapes. These colors are inspired by the earth's natural hues, including browns, greens, grays, and other warm and muted shades.
The left half shows the photo as it came from the digital camera. The right half shows the photo adjusted to make a gray surface neutral in the same light. 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 ...
Neutral paint colors are timeless. The designer of the house, Heather Chadduck Hillegas, curated an impeccable selection of neutrals from our friends at Sherwin-Williams and used them to ...
In photography and optics, a neutral-density filter, or ND filter, is a filter that reduces or modifies the intensity of all wavelengths, or colors, of light equally, giving no changes in hue of color rendition. It can be a colorless (clear) or grey filter, and is denoted by Wratten number 96. The purpose of a standard photographic neutral ...
Light meters, cameras, and pictures are often calibrated using an 18% gray card [4] [5] [6] or a color reference card such as a ColorChecker. [ 7 ] [ 8 ] [ 9 ] On the assumption that 18% is similar to the average reflectance of a scene, a gray card can be used to estimate the required exposure of the film.