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A periwinkle flower. Periwinkle is a color in the blue and violet family. Its name is derived from the lesser periwinkle or myrtle herb ( Vinca minor) which bears flowers of the same color. The color periwinkle is also called lavender blue and light blue violet. [2] The color periwinkle may be considered a pale tint of purple-blue in the ...
Gradient vector flow ( GVF ), a computer vision framework introduced by Chenyang Xu and Jerry L. Prince, [1] [2] is the vector field that is produced by a process that smooths and diffuses an input vector field. It is usually used to create a vector field from images that points to object edges from a distance.
Morphological gradient. In mathematical morphology and digital image processing, a morphological gradient is the difference between the dilation and the erosion of a given image. It is an image where each pixel value (typically non-negative) indicates the contrast intensity in the close neighborhood of that pixel.
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. In 24-bit colour modes, 8 bits per channel is usually considered sufficient to render ...
Colors can also be selected using hexadecimal color codes, as used in HTML color selection. GIMP has native support for indexed color and RGB color spaces; other color spaces are supported using decomposition, where each channel of the new color space becomes a black-and-white image.
Hospital emergency codes are coded messages often announced over a public address system of a hospital to alert staff to various classes of on-site emergencies. The use of codes is intended to convey essential information quickly and with minimal misunderstanding to staff while preventing stress and panic among visitors to the hospital.
Gradient noise is a type of noise commonly used as a procedural texture primitive in computer graphics. It is conceptually different from [further explanation needed], and often confused with, value noise. This method consists of a creation of a lattice of random (or typically pseudorandom) gradients, dot products of which are then interpolated ...
On the RGB and CMYK color wheel, Azure is defined as the colour halfway between blue and cyan. The colour halfway between blue and cyan on the RGB color wheel has a hex code of 0080FF. [1] ISCC–NBS descriptor. Vivid blue. B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred) Azure pigment.