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  2. NASA insignia - Wikipedia

    en.wikipedia.org/wiki/NASA_insignia

    In the NASA insignia design, the sphere represents a planet, the stars represent space, the red chevron is a wing representing aeronautics (the latest design in hypersonic wings at the time the logo was developed), and then the orbiting spacecraft going around the wing.

  3. File:Flag of Ireland.svg - Wikipedia

    en.wikipedia.org/wiki/File:Flag_of_Ireland.svg

    Set colors to color specifications. Find them on the Flag of Ireland page. 07:25, 13 October 2015: 600 × 300 (257 bytes) CemDemirkartal: Optimized: 00:31, 16 October 2014: 1,200 × 600 (271 bytes) AnonMoos: removing UTF8-BOM which does nothing on Commons, and can cause problems elsewhere. 03:36, 23 February 2013: 1,200 × 600 (274 bytes ...

  4. Columbia blue - Wikipedia

    en.wikipedia.org/wiki/Columbia_blue

    Although Columbia blue is often identified with Pantone 292, the Philolexian Society first used it in the early 19th century, before the standardization of colors. Pantone 290, a slightly lighter shade of blue, has also been specified by some Columbia University offices, and is the current official color listed by the Columbia University visual ...

  5. Color difference - Wikipedia

    en.wikipedia.org/wiki/Color_difference

    As most definitions of color difference are distances within a color space, the standard means of determining distances is the Euclidean distance.If one presently has an RGB (red, green, blue) tuple and wishes to find the color difference, computationally one of the easiest is to consider R, G, B linear dimensions defining the color space.

  6. Color filter array - Wikipedia

    en.wikipedia.org/wiki/Color_filter_array

    The Bayer color filter mosaic. Each two-by-two submosaic contains 2 green, 1 blue, and 1 red filter, each filter covering one pixel sensor.. In digital imaging, a color filter array (CFA), or color filter mosaic (CFM), is a mosaic of tiny color filters placed over the pixel sensors of an image sensor to capture color information.

  7. Sepia (color) - Wikipedia

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

    Sepia ink was commonly used for writing in Greco-Roman civilization.It remained in common use as an artist's drawing material until the 19th century. [2] Grisaille is a painting technique developed in the 14th century in which a painting is rendered solely in tones of gray, sepia, or dark green. [4]

  8. YCoCg - Wikipedia

    en.wikipedia.org/wiki/YCoCg

    The three values of the YCoCg color model are calculated as follows from the three color values of the RGB color model: [2] [] = [] [] The values of Y are in the range from 0 to 1, while Co and Cg are in the range of −0.5 to 0.5, as is typical with "YCC" color models such as YCbCr.

  9. Y′UV - Wikipedia

    en.wikipedia.org/wiki/Y′UV

    Example of U-V color plane, Y′ value = 0.5, represented within RGB color gamut An image along with its Y′, U, and V components respectively. Y′UV, also written YUV, is the color model found in the PAL analogue color TV standard (excluding PAL-N). A color is described as a Y′ component and two chroma components U and V.