JPEG Encoder Decoder
This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen's Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. 'RUN' - 'LEVEL' coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
Cite As
Muhammad Anwarul Azim (2024). JPEG Encoder Decoder (https://www.mathworks.com/matlabcentral/fileexchange/15335-jpeg-encoder-decoder), MATLAB Central File Exchange. Retrieved .
MATLAB Release Compatibility
Platform Compatibility
Windows macOS LinuxCategories
- Image Processing and Computer Vision > Image Processing Toolbox > Import, Export, and Conversion >
- Signal Processing > Wavelet Toolbox > Denoising and Compression >
Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!Discover Live Editor
Create scripts with code, output, and formatted text in a single executable document.
JPEG Encoder Decoder/JPEG Encoder Decoder/
Version | Published | Release Notes | |
---|---|---|---|
1.0.0.0 |