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  2. Shades of white - Wikipedia

    en.wikipedia.org/wiki/Shades_of_white

    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.

  3. Color grading - Wikipedia

    en.wikipedia.org/wiki/Color_grading

    Various attributes of an image such as contrast, color, saturation, detail, black level, and white balance may be enhanced whether for motion pictures, videos, or still images. Color grading and color correction are often used synonymously as terms for this process and can include the generation of artistic color effects through creative ...

  4. ColorChecker - Wikipedia

    en.wikipedia.org/wiki/ColorChecker

    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]

  5. Wratten number - Wikipedia

    en.wikipedia.org/wiki/Wratten_number

    Used for color separation, complements #47 and #61. In black and white outdoor photography makes blue skies look very dark, almost black. In infrared photography, blocks much visible light, increasing the effect of the infrared frequencies on the picture. Longpass filter blocking short of 600 nm. Wratten number Visible color Filter factor

  6. Contrast ratio - Wikipedia

    en.wikipedia.org/wiki/Contrast_ratio

    An LCD technology is dynamic contrast (DC), also called advanced contrast ratio (ACR), and smart contrast ratio (SCR [4]) and various other designations.When there is a need to display a dark image, a display that supports dynamic contrast underpowers the backlight lamp (or decreases the aperture of the projector's lens using an iris), but proportionately amplifies the transmission through the ...

  7. Flax (color) - Wikipedia

    en.wikipedia.org/wiki/Flax_(color)

    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."

  8. Contrast (vision) - Wikipedia

    en.wikipedia.org/wiki/Contrast_(vision)

    Thus, when an optometrist or ophthalmologist assesses a patient's visual acuity using a Snellen chart or some other acuity chart, the target image is displayed at high contrast, e.g., black letters of decreasing size on a white background. A subsequent contrast sensitivity exam may demonstrate difficulty with decreased contrast (using, e.g ...

  9. Complementary colors - Wikipedia

    en.wikipedia.org/wiki/Complementary_colors

    Complementary colors are pairs of colors which, when combined or mixed, cancel each other out (lose chroma) by producing a grayscale color like white or black. [1] [better source needed] When placed next to each other, they create the strongest contrast for those two colors. Complementary colors may also be called "opposite colors".

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