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  2. Binary image - Wikipedia

    en.wikipedia.org/wiki/Binary_image

    The names black-and-white, B&W, monochrome or monochromatic are often used, but can also designate other image types with only one sample per pixel, such as grayscale images. In Photoshop parlance, a binary image is the same as an image in "Bitmap" color mode. [3] [4]

  3. Color balance - Wikipedia

    en.wikipedia.org/wiki/Color_balance

    This is a simple scaling of the red, green, and blue channels, and is why color balance tools in Photoshop have a white eyedropper tool. It has been demonstrated that performing the white balancing in the phosphor set assumed by sRGB tends to produce large errors in chromatic colors, even though it can render the neutral surfaces perfectly neutral.

  4. Monochrome photography - Wikipedia

    en.wikipedia.org/wiki/Monochrome_photography

    Monochrome photography is photography where each position on an image can record and show a different amount of light (), but not a different color ().The majority of monochrome photographs produced today are black-and-white, either from a gelatin silver process, or as digital photography.

  5. Blend modes - Wikipedia

    en.wikipedia.org/wiki/Blend_modes

    Blending with black does not change the image. When the top layer contains a homogeneous color, this effect is equivalent to changing the output black point to this color, and (input) white point to the inverted color. The contrast is decreased when there is no clipping. Divide: Same as "Color Dodge", but blending with white does not change the ...

  6. Grayscale - Wikipedia

    en.wikipedia.org/wiki/Grayscale

    Grayscale images are distinct from one-bit bi-tonal black-and-white images, which, in the context of computer imaging, are images with only two colors: black and white (also called bilevel or binary images). Grayscale images have many shades of gray in between.

  7. Hand-colouring of photographs - Wikipedia

    en.wikipedia.org/wiki/Hand-colouring_of_photographs

    Hand-coloured photographs sometimes include the combined use of dyes, water-colours, oils, and other pigments to create varying effects on the printed image. Regardless of which medium is used, the main tools to apply colour are the brush and fingertip. Often the dabbing finger is covered to ensure that no fingerprints are left on the image.

  8. Negative (photography) - Wikipedia

    en.wikipedia.org/wiki/Negative_(photography)

    A positive image is a normal image. A negative image is a total inversion, in which light areas appear dark and vice versa. A negative color image is additionally color-reversed, [6] with red areas appearing cyan, greens appearing magenta, and blues appearing yellow, and vice versa.

  9. Black-and-white - Wikipedia

    en.wikipedia.org/wiki/Black-and-white

    In computing terminology, black-and-white is sometimes used to refer to a binary image consisting solely of pure black pixels and pure white ones; what would normally be called a black-and-white image, that is, an image containing shades of gray, is referred to in this context as grayscale. [2]

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