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Colour banding is a subtle form of posterization in digital images, caused by the colour of each pixel being rounded to the nearest of the digital colour levels. While posterization is often done for artistic effect, colour banding is an undesired artifact.
Posterization is a process in photograph development which converts normal photographs into an image consisting of distinct, but flat, areas of different tones or colors.
Two types of gradients, with blue arrows to indicate the direction of the gradient. Light areas indicate higher pixel values A blue and green color gradient.. An image gradient is a directional change in the intensity or color in an image.
Noise shaping is a filtering process that shapes the spectral energy of quantization error, typically to either de-emphasize frequencies to which the ear is most sensitive or separate the signal and noise bands completely. If dither is used, its final spectrum depends on whether it is added inside or outside the feedback loop of the noise shaper.
A major innovation was the development of halftone photography in the late 19th century. Halftone photography involves creating a reproduction of an original photograph by taking an image of it using a Photomechnical transfer camera (PMT), with a halftone screen as an intermediary tool to create gradation in the final reproduction. Halftone ...
This category contains categories and articles relating to the theory and methodology of composing and/or taking photographs, or to their manipulation during or after processing.
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Banding may refer to: Banding (medical), procedures that use elastic bands for constriction; Bird banding/ringing, the marking of individual birds with bands or rings to enable individual identification; Colour banding, an inaccuracy in computer graphics; Edge banding, a woodworking technique; G banding, a genetic technique