![still image compression standards jpeg and jpeg2000.pdf still image compression standards jpeg and jpeg2000.pdf](https://journal.code4lib.org/media/issue41/bennett/fig3.png)
Temporal compression does not encode each frame as a complete image, therefore MPEG compression is not frame accurate. MPEG systems, on the other hand, reduce the amount of data through temporal compression. Every single frame of the input is contained in the compressed format. The operator on the receive side can decide what information to extract from the single code stream that is sent. High-res images can be stored on a hard disk drive, while several low-res images are displayed on monitors. Click here to see an enlarged diagram.įor example, a closed circuit TV (CCTV) security system can make use of this feature by sending a single JPEG 2000 code stream over a low bandwidth network. One JPEG 2000 stream can be received by several decoders and extracted at different resolutions. This is not possible with any other compression standard, because the image size, bit rate and quality must be specified on the encode side and cannot be determined or changed on the decode side.įigure 3. (See Figure 1 on page 77.)Īn important feature of systems based on JPEG 2000 is the ability to extract a variety of resolutions, components, areas of interest and compression ratios from a single JPEG 2000 code stream. As such, it lends itself to applications that require high-quality images despite limitations on storage or transmission bandwidths. JPEG 2000 provides for both lossless and lossy compression. Standards are required to ensure interoperability.
STILL IMAGE COMPRESSION STANDARDS JPEG AND JPEG2000.PDF FULL
Compression is defined as lossless if full recovery of the original is available from the channel without any loss of information otherwise, it is lossy. When transmitting or storing picture information, compression must be employed to maintain picture resolution while making the best use of limited channel bandwidth.