An 8x8 DCT Implementation on the Motorola DSP56800E Application Note
■The 8x8 discrete cosine transform (DCT) is an efficient, real-valued transform often used in image compression. Special, fast algorithms for the DCT have been developed to accommodate the many arithmetic operations involved in implementing the DCT directly. In this application an implementation of a fast DCT algorithm is presented for the Motorola DSP56800E processor. The details of the implementation are discussed and the results are presented.
●Introduction
■This document describes the implementation of a two-dimensional (2-D) discrete cosine transform (DCT) on the Motorola DSP56800E. The DCT is a member of the family of sinusoidal transforms and is often used in image compression. The DCT is a real-valued transform with mirror-periodicity and as a result is more efficient than the discrete Fourier transform (DFT) for compression. This application implements an 8x8 2-D DCT for compression algorithms such as JPEG.
|
|
|
|
Application note & Design Guide |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
08/2001 |
|
|
Rev. 0 |
|
|
AN2123/D |
|
|
331 KB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
