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  2. Earthrise - Wikipedia

    en.wikipedia.org/wiki/Earthrise

    Earthrise. Earthrise, taken on December 24, 1968, by Apollo 8 astronaut William Anders. Earthrise is a photograph of Earth and part of the Moon 's surface that was taken from lunar orbit by astronaut William Anders on December 24, 1968, during the Apollo 8 mission. [ 1][ 2][ 3] Nature photographer Galen Rowell described it as "the most ...

  3. Color photography - Wikipedia

    en.wikipedia.org/wiki/Color_photography

    Color photography is photography that uses media capable of capturing and reproducing colors. By contrast, black-and-white or gray- monochrome photography records only a single channel of luminance (brightness) and uses media capable only of showing shades of gray . In color photography, electronic sensors or light-sensitive chemicals record ...

  4. Timeline of first images of Earth from space - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_first_images...

    ATS-3. First full-disk "true color" [ 41] picture of the Earth; [ 42] subsequently used on the cover of the first Whole Earth Catalog. [ 43][ 42] December 21, 1968. Apollo 8. First full-disk image of Earth from space taken by a person, probably by astronaut William Anders. [ 44] December 24, 1968.

  5. History of photography - Wikipedia

    en.wikipedia.org/wiki/History_of_photography

    Original (left) and colorized reoriented enhancement (right). The history of photography began with the discovery of two critical principles: The first is camera obscura image projection, the second is the discovery that some substances are visibly altered by exposure to light. There are no artifacts or descriptions that indicate any attempt to ...

  6. 8-bit color - Wikipedia

    en.wikipedia.org/wiki/8-bit_color

    8-bit color, with three bits of red, three bits of green, and two bits of blue. In order to turn a true color 24-bit image into an 8-bit image, the image must go through a process called color quantization. Color quantization is the process of creating a color map for a less color dense image from a more dense image. [2]

  7. Film colorization - Wikipedia

    en.wikipedia.org/wiki/Film_colorization

    Film colorization ( American English; or colourisation [ British English ], or colourization [ Canadian English and Oxford English ]) is any process that adds color to black-and-white, sepia, or other monochrome moving-picture images. It may be done as a special effect, to "modernize" black-and-white films, or to restore color segregation.

  8. Afterimage - Wikipedia

    en.wikipedia.org/wiki/Afterimage

    On empty shape. An afterimage in general is an optical illusion that refers to an image continuing to appear after exposure to the original image has ceased. Prolonged viewing of the colored patch induces an afterimage of the complementary color (for example, yellow color induces a bluish afterimage).

  9. Color histogram - Wikipedia

    en.wikipedia.org/wiki/Color_histogram

    In image processing and photography, a color histogram is a representation of the distribution of colors in an image.For digital images, a color histogram represents the number of pixels that have colors in each of a fixed list of color ranges, that span the image's color space, the set of all possible colors.

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