Rank: 1067 based on 64 downloads (last 30 days) and 2 files submitted
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Wang Tianhui

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08 Aug 2006 2-D lifting wavelet transform Self-contained 2-D image decomposition and reconstruction based on lifting wavelet algorithm Author: Wang Tianhui lifting, bior44, cdf 97, spline 53, wavelets, bior22 30 4
  • 3.25
3.2 | 4 ratings
07 Aug 2006 CDF 9/7 Wavelet Transform 2-D image decomposition and reconstruction with cdf 9/7 wavelet proposed in jpeg2000 Author: Wang Tianhui wavelets, cdf97, cdf, time frequency, bior44, jpeg2000 34 4
  • 4.66667
4.7 | 3 ratings
Comments and Ratings by Wang
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25 Dec 2008 Microsoft Visual Studio 2008 Mex and Mbuild Setup Files Use these files to compile mex files from matlab command prompt with Visual Studio 2008 Author: Vakur VEZIR

I installed VC2008 in path "D:\programs\" and mex reported cannot-find-cl.exe error when I mex my cpp files after following the instructions provided by this article. But it works after I made the following changes:

in file msvc90opts.stp (Revision: 1.1.10.2):
change the line --
  my $default_location = "C:\\Program Files\\Microsoft Visual Studio 9.0";
to my vc installed path --
   my $default_location = "D:\\Programs\\Microsoft Visual Studio 9.0";
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29 Jul 2009 2-D lifting wavelet transform Self-contained 2-D image decomposition and reconstruction based on lifting wavelet algorithm Author: Wang Tianhui Jayachandra, Dakala

This code is very well written. Easily extendable to other Lifting structures. Thanks for posting.
But, the "Symmetric extension" is not proper. In every stage of lifting "Symmetric extension" has to be repeated, other wise "Symmetric extension" on Synthesis side will not be same as at the Analysis side, exact reconstruction will not be possible. U can check this with the following simple Lamdas:
lamda1 = a1+a2*z^-1,
lamda2 = b1+b2*z.
Thanks once again.
D.Jayachandra
11 Jun 2009 CDF 9/7 Wavelet Transform 2-D image decomposition and reconstruction with cdf 9/7 wavelet proposed in jpeg2000 Author: Wang Tianhui Rahul

hey this code performs only the wavelet transform right? ... does anybody have the entire jpeg 2000 compression and reconstruction codes including the quantization and run-length/arithmetic coding??

04 Feb 2009 CDF 9/7 Wavelet Transform 2-D image decomposition and reconstruction with cdf 9/7 wavelet proposed in jpeg2000 Author: Wang Tianhui Andre

The performance is worse than Pascal's one. So I'm gonna stick with his version. Good job and nice implementation though.
09 May 2008 2-D lifting wavelet transform Self-contained 2-D image decomposition and reconstruction based on lifting wavelet algorithm Author: Wang Tianhui sg, athira

need more explanation about codings in matlab programming

05 Apr 2008 CDF 9/7 Wavelet Transform 2-D image decomposition and reconstruction with cdf 9/7 wavelet proposed in jpeg2000 Author: Wang Tianhui Kulkarni, Nidhi

the code is real good and easy to use but i want to ask u one thing that how to get access to the compressed image and get it's size in kb/mb and pixels...
thanx a lot !!
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time frequency, wavelets
Files Tagged by Wang View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
08 Aug 2006 2-D lifting wavelet transform Self-contained 2-D image decomposition and reconstruction based on lifting wavelet algorithm Author: Wang Tianhui lifting, bior44, cdf 97, spline 53, wavelets, bior22 30 4
  • 3.25
3.2 | 4 ratings
07 Aug 2006 CDF 9/7 Wavelet Transform 2-D image decomposition and reconstruction with cdf 9/7 wavelet proposed in jpeg2000 Author: Wang Tianhui wavelets, cdf97, cdf, time frequency, bior44, jpeg2000 34 4
  • 4.66667
4.7 | 3 ratings

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