key compression

См. также в других словарях:

• Key frame — A key frame in animation and filmmaking is a drawing which defines the starting and ending points of any smooth transition. They are called frames because their position in time is measured in frames on a strip of film. A sequence of keyframes… …   Wikipedia

• Compression artifact — Original image, with good color grade Loss of edge clarity and tone fuzziness in heavy JPEG compression A compression ar …   Wikipedia

• One-way compression function — In cryptography, a one way compression function is a function that transforms two fixed length inputs to an output of the same size as one of the inputs. The transformation is one way , meaning that it is difficult given a particular output to… …   Wikipedia

• Video compression picture types — In the field of video compression a video frame is compressed using different algorithms with different advantages and disadvantages, centered mainly around amount of data compression. These different algorithms for video frames are called… …   Wikipedia

• Audio compression (data) — For processes which reduce the amount of time it takes to listen to and understand a recording, see time compressed speech. Audio compression is a form of data compression designed to reduce the size of audio files. Audio compression algorithms… …   Wikipedia

• Data compression — Source coding redirects here. For the term in computer programming, see Source code. In computer science and information theory, data compression, source coding or bit rate reduction is the process of encoding information using fewer bits than… …   Wikipedia

• Dynamic range compression — This article is about a process that intentionally reduces the dynamic range of audio signals. For similar reductions caused by circuit imperfections, see Gain compression. For processes that reduce the size of digital audio files, see Audio… …   Wikipedia

• Video compression — refers to reducing the quantity of data used to represent video images and is a straightforward combination of image compression and motion compensation. This article deals with its applications: compressed video can effectively reduce the… …   Wikipedia

• Fractal compression — is a lossy image compression method using fractals to achieve high levels of compression. The method is best suited for photographs of natural scenes (trees, mountains, ferns, clouds). The fractal compression technique relies on the fact that in… …   Wikipedia

• Homogeneous charge compression ignition — Thermodynamics …   Wikipedia

• Homogeneous Charge Compression Ignition — Homogeneous Charge Compression Ignition, or HCCI, is a form of internal combustion in which well mixed fuel and oxidizer (typically air) are compressed to the point of auto ignition. As in other forms of combustion, this exothermic reaction… …   Wikipedia