actual compression ratio
1Compression ratio — For compression ratio in data compression, see data compression ratio. The compression ratio of an internal combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its… …
2Lossless data compression — is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. The term lossless is in contrast to lossy data compression, which only allows an approximation of the original data to be… …
3Executable compression — is any means of compressing an executable file and combining the compressed data with the decompression code it needs into a single executable.Running a compressed executable essentially unpacks the original executable code, then transfers… …
4Aspect ratio (image) — For other uses, see Aspect ratio (disambiguation). For computer screen topics, see display aspect ratio. For screen rotation and portrait mode, see page orientation. 4:3 redirects here. For the 4/3 digital camera/lens standard, see Four Thirds… …
5Universal code (data compression) — In data compression, a universal code for integers is a prefix code that maps the positive integers onto binary codewords, with the additional property that whatever the true probability distribution on integers, as long as the distribution is… …
6One-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… …
7Crown-to-root ratio — This X ray film reveals a poor crown to root ratio for tooth #21 (right), the lower left first premolar. The tooth exhibits 50% bone loss, adding roughly 5 7 mm to the clinical crown of what is actually anatomical root. The fulcrum, existing… …
8PCX — may also refer to the Pacific Exchange. PCX Filename extension .pcx Internet media type image/x pcx Developed by ZSoft Corporation Type of format lossless bitmap image format …
9Dial-up Internet access — is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a dialled connection to an Internet service provider (ISP) via telephone lines. The user s computer or router uses an attached… …
10piston and cylinder — In mechanical engineering, a sliding cylinder with a closed head (the piston) that moves up and down (or back and forth) in a slightly larger cylindrical chamber (the cylinder) by or against pressure of a fluid, as in an engine or pump. The… …
