Xiaolin Wu's Line Algorithm

picture info	Xiaolin Wu's Line Algorithm 336px, Demonstration of Xiaolin Wu's algorithm. Compression artifacts in the jpeg standard can be made "fairly" with it. Xiaolin Wu's line algorithm is an algorithm for line antialiasing. Antialiasing technique Xiaolin Wu's line algorithm was presented in the article "An Efficient Antialiasing Technique" in the July 1991 issue of ''Computer Graphics'', as well as in the article "Fast Antialiasing" in the June 1992 issue of ''Dr. Dobb's Journal''. Bresenham's algorithm Bresenham's line algorithm is a line drawing algorithm that determines the points of an ''n''-dimensional raster graphics, raster that should be selected in order to form a close approximation to a straight line between two points. It is commonly u ... draws lines extremely quickly, but it does not perform anti-aliasing. In addition, it cannot handle any cases where the line endpoints do not lie exactly on integer points of the pixel grid. A naive approach to anti-aliasing the line would take an extremely long tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Algorithm In mathematics and computer science, an algorithm () is a finite sequence of rigorous instructions, typically used to solve a class of specific Computational problem, problems or to perform a computation. Algorithms are used as specifications for performing calculations and data processing. More advanced algorithms can perform automated deductions (referred to as automated reasoning) and use mathematical and logical tests to divert the code execution through various routes (referred to as automated decision-making). Using human characteristics as descriptors of machines in metaphorical ways was already practiced by Alan Turing with terms such as "memory", "search" and "stimulus". In contrast, a Heuristic (computer science), heuristic is an approach to problem solving that may not be fully specified or may not guarantee correct or optimal results, especially in problem domains where there is no well-defined correct or optimal result. As an effective method, an algorithm ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Spatial Anti-aliasing In digital signal processing, spatial anti-aliasing is a technique for minimizing the distortion artifacts (aliasing) when representing a high-resolution image at a lower resolution. Anti-aliasing is used in digital photography, computer graphics, digital audio, and many other applications. Anti-aliasing means removing signal components that have a higher frequency than is able to be properly resolved by the recording (or sampling) device. This removal is done before (re)sampling at a lower resolution. When sampling is performed without removing this part of the signal, it causes undesirable artifacts such as black-and-white noise. In signal acquisition and audio, anti-aliasing is often done using an analog anti-aliasing filter to remove the out-of-band component of the input signal prior to sampling with an analog-to-digital converter. In digital photography, optical anti-aliasing filters made of birefringent materials smooth the signal in the spatial optical domain. The anti-a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Xiaolin Anti-aliased Line Comparison Xiaolin may refer to: * Siaolin Village (), village in Jiasian District, Kaohsiung, Taiwan, Republic of China * Xiaolin, Cixi (逍林镇), town in Cixi City, Zhejiang, People's Republic of China * Xiaolin, Sui County (), town in Sui County, Suizhou, Hubei, China * Zhu Xiaolin (朱晓琳), Chinese long-distance runner * ''Xiaolin Showdown'', American animated television series See also Shaolin (other) Shaolin Temple (other) Shaolin Monastery or Shaolin Temple is a Buddhist monastery in Henan province, China. Shaolin Temple or Shaolin Monastery may also refer to: Southern Shaolin Monastery, Buddhist monastery in Fujian, China ''Shaolin Temple'' (1982 film), a martia ... {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Computer Graphics (newsletter) ''Computer Graphics'' was a publication of ACM SIGGRAPH. It served as its newsletter, and has published the yearly SIGGRAPH Conference Proceedings SIGGRAPH (Special Interest Group on Computer Graphics and Interactive Techniques) is an annual conference on computer graphics (CG) organized by the ACM SIGGRAPH, starting in 1974. The main conference is held in North America; SIGGRAPH Asia, ... up to 2003, as well as a variety of papers on a quarterly basis. The last edition was published in 2011. External links Online archive Computer graphics organizations Association for Computing Machinery magazines Publications with year of establishment missing Magazines disestablished in 2011 Conference proceedings published in serials Newsletters Defunct computer magazines {{compu-mag-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Bresenham's Line Algorithm Bresenham's line algorithm is a line drawing algorithm that determines the points of an ''n''-dimensional raster that should be selected in order to form a close approximation to a straight line between two points. It is commonly used to draw line primitives in a bitmap image (e.g. on a computer screen), as it uses only integer addition, subtraction and bit shifting, all of which are very cheap operations in commonly used computer instruction sets such as x86_64. It is an incremental error algorithm, and one of the earliest algorithms developed in the field of computer graphics. An extension to the original algorithm may be used for drawing circles. While algorithms such as Wu's algorithm are also frequently used in modern computer graphics because they can support antialiasing, Bresenham's line algorithm is still important because of its speed and simplicity. The algorithm is used in hardware such as plotters and in the graphics chips of modern graphics cards. It can also be fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Anti-aliasing Algorithms Anti-aliasing may refer to any of a number of techniques to combat the problems of aliasing in a sampled signal such as a digital image or digital audio recording. Specific topics in anti-aliasing include: * Anti-aliasing filter, a filter used before a signal sampler, to restrict the bandwidth of a signal such as in audio applications * Manual anti aliasing, artistic technique done in pixel art graphics to smooth transitions between shapes, to soften lines or to blur edges. * Spatial anti-aliasing, the technique of minimizing aliasing when representing a high-resolution image at a lower resolution Fast approximate anti-aliasing, an anti-aliasing algorithm created by Timothy Lottes under Nvidia. May also be referred to as Fast Sample Anti-aliasing (FSAA). Multisample anti-aliasing, a type of spatial anti-aliasing method ** Supersampling, a type of spatial anti-aliasing method * Temporal anti-aliasing, techniques to reduce or remove the effects of temporal aliasing in moving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]