Wavelet based image compression using matlab

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NIKUNJ SHINGALA
NIKUNJ SHINGALA 2011-2-4
I am working on wavelet based image compression. I know about how to decompose image using wavelet with different level using MATLAB. But the next stage is thresholding and entropy coding and I don't know how to achieve better compression. Please tell me how to apply thresold and how should I go further.

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回答（1 个）

Brett Shoelson
Brett Shoelson 2011-2-4
Nikunj, I'd hate to have to implement this from scratch. But assuming you have the Wavelet Toolbox, please check our really nice demos on that Toolbox on Wavelet image compression. If you don't have that Toolbox, you can see the demos online...starting here:
http://www.mathworks.com/products/wavelet/demos.html
Then run out and buy yourself a copy that Toolbox rather than reinvent the wheel! :)
Brett

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