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JPEG encoder + decoder

5.0

5.0 | 1 rating Rate this file 31 Downloads (last 30 days) File Size: 2.87 KB File ID: #24609
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JPEG encoder + decoder

by NIKHIL S KUMAR

 

01 Jul 2009

THIS PROGRAM CONSTRUCTS A '.YUV' FILE FROM THE INPUT BMP,TIFF FILE FORMATS.

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Description

1.subsampling
2.level shifting --> dct -->quantization
3.dequantization-->idct--->level shifting
4.SNR calculations
5.writing decoded matrices into yuv file.
6.YUV FILE can be viewed using yuv players like 1)YUV TOOLS 2) ELECARD YUV VIEWER.(available for free download)
7.PLZ SELECT 420 SUBSAMPLING in yuv viewer and give appropriate resolution of the input image.
8.compare the size of input and reconstructed images.

MATLAB release MATLAB 7.0.1 (R14SP1)
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07 Mar 2011 BUPT  
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