Standards and Technical Documents - Information technology -- JPEG 2000 image coding system: An entry level JPEG 2000 encoder -- ISO/IEC 15444-13:2008
Description: on patents for which royalty and license fee free declarations are available. ISO/IEC 15444-13:2008 defines a set of lossless (bit-preserving) and lossy compression methods for coding bi-level, continuous-tone greyscale, palletized colour, or continuous-tone colour digital still images.
Standards and Technical Documents - Information technology -- JPEG 2000 image coding system: Core coding system -- ISO/IEC 15444-1:2004
Description: ISO/IEC 15444-1:2004 | ITU-T Rec. T.800 defines a set of lossless (bit-preserving) and lossy compression methods for coding bi-level, continuous-tone grey-scale, palletized colour, or continuous-tone colour digital still images. ISO/IEC 15444-1:2004 | ITU-T Rec. T.800 specifies decoding processes
Standards and Technical Documents - Information technology -- JPEG 2000 image coding system: Extensions -- ISO/IEC 15444-2:2004
Description: ISO/IEC 15444-2:2004 defines a set of lossless (bit-preserving) and lossy compression methods for coding continuous-tone, bi-level, grey-scale, colour digital still images, or multi-component images. ISO/IEC 15444-2:2004: specifies extended decoding processes for converting compressed image data
Standards and Technical Documents - Information technology -- JPEG 2000 image coding system: Reference software -- ISO/IEC 15444-5:2003
Description: ISO/IEC 15444-5:2003 provides two independently created software reference implementations of ISO/IEC 15444-1, in order to assist implementers of ISO/IEC 15444-1 in testing and understanding its content. ISO/IEC 15444-1 defines a set of lossless and lossy compression methods for coding
Standards and Technical Documents - Information technology -- JPEG 2000 image coding system: Extensions for three-dimensional data -- ISO/IEC 15444-10:2011
Description: ISO/IEC 15444-10:2011 defines a set of lossless (bit-preserving) and lossy compression methods for coding continuous-tone, bi-level, grey-scale, colour digital volumetric images, or multi-component volumetric images. This set of methods extends the elements in the core coding system described
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Description: ). Both codecs can be used simultaneously. MPEG-4 gives efficient bandwidth consumption with good-quality compression and is optimal for real-time viewing of video. MJPEG gives optimal video quality with lossy compression, making it ideal for large-volume storage to a network attached storage (NAS
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Smart Computing Article - Standards & Technologies
October 2005 Vol.9 Issue 6 Page(s) 16-18 in print issue Add To My Personal Library I ve heard of lossy and lossless compression. What do these terms mean? Audio compression software uses two types of compression, lossless and lossy, to create smaller digital music files. compression retains
History of PNG
The Story of PNG actually begins way back in 1977 and 1978 when two Israeli researchers, Jacob Ziv and Abraham Lempel, first published a pair of papers on a new class of lossless data-compression algorithms, now collectively referred to as ``LZ77'' and ``LZ78.'' Some years later, in 1983, Terry
MP3: The Definitive Guide: Sample Chapter 2
data will be discarded, and the worse the resulting music will sound. The process is actually quite a bit more complex than that, and we'll go into more detail later on. This kind of compression is called [_Fi_] lossy, because data is lost in the process. However, a second compression run is also
Computer Power User Article - Video Encoder Roundup
a video codec, which is really nothing more than an algorithm that compresses (and decompresses) a video file. For the uninitiated, video codecs typically use lossy compression to compress video by removing parts of the video in much the same way MP3 files compress audio files by removing sounds
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"dots per inch " (which refers to the resolution of the output), is replacing the term "lines per inch. ". Lossless Compression. A compression technique that will retain all of the file 's original image characteristics. The perfect lossless compression technique remains elusive. Lossy Compression
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is a phenomenon called speckle. Speckle is caused by the interaction of various independent scatterers (similar to multipath radio-frequency reflections in the wireless domain) and is multiplicative by nature. Ultrasound images can be despeckled by means of lossy compression. First, the logarithm
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is what's known as "lossy" compression. You may also be familiar with .ZIP files, which are "lossless" compression. Anything you put into a .ZIP file will come back out of the .ZIP file exactly the same as it went in. Anything you put into an MP3 file will NOT be the same, it will have lost
Large-Signal Characterization and Modeling of MOSFET for PA Applications
as in 0. As shown in the figure,. the cascode stage to withstand high voltage swing. the model, when it is fitted well to very high current. For an example GSM/GPRS PA as described in ,. (c.f. 0), can properly predict the gain compression and. the small-signal power gain of the transistor, while
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Lossy compression - Wikipedia, the free encyclopedia
Lossy compression From Wikipedia, the free encyclopedia (Redirected from Lossy data compression)
Data compression - Wikipedia, the free encyclopedia
In computer science and information theory, data compression, source coding,[1 or bit-rate reduction involves encoding information using fewer bits
Graphics: Use Lossy Compression for Smaller GIFs and PNGs -...
You can apply lossy compression to the entire image, or selectively using weighted optimization with alpha masks for less important areas of your
lossy compression - Computer Dictionary Definition
Dictionary Home » Computer Definitions » lossy compression
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The term "near-lossless compression" refers to a lossy algorithm for which each reconstructed image sample differs from the corresponding original
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DjVuPhoto (aka IW44): A progressive, wavelet-based lossy compression format for continuous-tone images (i.e. photos and pictures).
- lossy compression - Internetnews.com - Webopedia.com
INTERNATIONAL TELECOMMUNICATION UNION CCITT T.81 THE...
Digital Compression and Coding of Continuous-tone Still images, is published in two parts: ? Requirements and guidelines; ? Compliance testing.