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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.
Broad-band anti-reflection. Anti-reflection multi-coating of lenses to reduce transmission losses. DC Nikon: Defocus control. Lens with bokeh (defocus) control. Konica Minolta Digitally corrected. A lens designation to indicate lenses which feature improved lens-coating but cover the APS-C image circle only. Sigma Sony DNG —
Image on left is original. Center image reduced to 16 colors. Right image also 16 colors, but dithered to reduce banding effect. Dither is an intentionally applied form of noise used to randomize quantization error, preventing large-scale patterns such as color banding in images.
Spectral imaging is imaging that uses multiple bands across the electromagnetic spectrum. [1] While an ordinary camera captures light across three wavelength bands in the visible spectrum, red, green, and blue (RGB), spectral imaging encompasses a wide variety of techniques that go beyond RGB.
These effects can occur in both analog and digital photography. Chromatic aberration due to optical dispersion through a lens, leading to color fringes at high-contrast boundaries in a photograph Purple fringing; Motion blur; Near-camera reflection, visual artifacts caused by the backscatter of light by unfocused particles
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
Color digital images are made of pixels, and pixels are made of combinations of primary colors represented by a series of code. A channel in this context is the grayscale image of the same size as a color image, [citation needed] made of just one of these primary colors.