Rank: 85 based on 600 downloads (last 30 days) and 45 files submitted
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Michael Chan

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Personal Profile:

I was a Security Specialist for software security and cryptology [2006 to 2008]. Following, I joined a firm under a statutory board involving in National Security Frameworks as a Senior Consultant [2009].

I would like very much to meet altrulistic, courageous, purposive, perspicacious people who are seeking to work on a noble cause. It is a very nourishing experience to share life lessons with compassionate, passionate people who are relentlessly seeking discoveries and growth.

Professional profile:
http://linkd.in/MichaelElijah

My Teachers:
[1] http://bit.ly/ProfessorDavidAkopian
[2] http://bit.ly/ProfessorSosAgaian
[3] http://bit.ly/ProfessorArtyomGrigoryan
[4] http://bit.ly/ProfessorErMengHwa
[5] http://bit.ly/ProfessorDanielTan

[6] http://bit.ly/ProfessorRuanJianhua
[7] http://bit.ly/ProfessorFredHudson
[8] http://bit.ly/ProfessorByeongKilLee
[9] http://bit.ly/ProfessorJinYufang
[10] http://bit.ly/ProfessorFengYusheng

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Files Posted by Michael View all
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(last 30 days) 		Comments Rating
11 Jan 2013 Screenshot Simple Object Creation in Matlab Object Oriented Programming (OOP) The objective is to provide a simple sample code to illustrate OOP in Matlab. Author: Michael Chan oop, objectoriented progra..., data formatting, interpretator 15 0
21 Jun 2012 Screenshot Image Description Notes (with LSB encoding) The objective is to illustrate how certain reference may be made to a given image. Author: Michael Chan text, data hiding, description, bit, profile, lsb 18 0
07 May 2012 Screenshot Embedding/ Hiding Image Within Image (with LSB encoding) The objective is to illustrate how an image may be embedded or hidden within another given image. Author: Michael Chan bit, data hiding, description, lsb, profile, image within image 41 3
09 Apr 2012 Wavelet Decomposition For Images The demo decouples the wavelet operations from the plotting. Author: Michael Chan denoising, transform, compression, wavelet, multiresolution, image processing 70 6
  • 3.33333
3.3 | 3 ratings
09 Mar 2012 Screenshot Perspective Control/ Correction The objective is to give a simple demonstration on perspective control using 4 corners of a plane. Author: Michael Chan image processing, perspective, control, affine, transformation, adjust 25 0
  • 5.0
5.0 | 1 rating
Comments and Ratings by Michael View all
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20 Jan 2013 arrow.m Draw a line with an arrowhead. Author: Erik Johnson

How do you turn off the arrow heads at either ends of the start and stop points?
16 Jan 2013 Wavelet Decomposition For Images The demo decouples the wavelet operations from the plotting. Author: Michael Chan

Hi Rewati, it is. It's a form of lossy compression where you keep only the coefficients of the Approximate region(s).
01 Jun 2012 Wavelet Decomposition For Images The demo decouples the wavelet operations from the plotting. Author: Michael Chan

Hi Diógenes Diógenes,

Did you run the observeWaveletDecompositionBenchmark_N_levels.m file? As stated in the readme.txt, it is the main executing reference usage file.

For a single decomposition level, set

levelOfDecomposition = 1; % level N = 1

For the inquiries regarding the variables, in image wavelet decomposition, the segments are divided according to the (H)orizontal, (V)ertical, (A)pproximate and (D)iagonal regions.

Usually, the coefficients are represented in the form (in the example of 1 level wavelet decomposition):
coeff_A1, coeff_H1;
coeff_V1, coeff_D1;

I hope that helps.

23 Apr 2012 Embedding/ Hiding Image Within Image (with LSB encoding) The objective is to illustrate how an image may be embedded or hidden within another given image. Author: Michael Chan

yes, BITGET and BITSET is more relevant.
23 Apr 2012 Embedding/ Hiding Image Within Image (with LSB encoding) The objective is to illustrate how an image may be embedded or hidden within another given image. Author: Michael Chan

That is true.
The intention though is to make it easier for people to translate by handcoding it to C/ C++ or Java by reducing the use of Matlab toolboxes.

However, I agree with you. I will provide 2 versions later on.
Comments and Ratings on Michael's Files View all
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12 Mar 2013 Perspective Control/ Correction The objective is to give a simple demonstration on perspective control using 4 corners of a plane. Author: Michael Chan Li, Jing-Sheng

08 Mar 2013 Character/ symbol frequency distribution analaysis on vintage ciphers Demonstrates character/ symbol frequency distribution analysis Author: Michael Chan ahmed

19 Feb 2013 Calculate Time Interval/ Difference To compute time interval, taking into account leap days that are subsumed within that interval. Author: Michael Chan kevin

16 Jan 2013 Wavelet Decomposition For Images The demo decouples the wavelet operations from the plotting. Author: Michael Chan Chan, Michael

Hi Rewati, it is. It's a form of lossy compression where you keep only the coefficients of the Approximate region(s).
15 Jan 2013 Wavelet Decomposition For Images The demo decouples the wavelet operations from the plotting. Author: Michael Chan Rewati

plz can u tell me that decomposed image i.e.(approximated pixel value 'A')through DWT is same as a compressed image??
Top Tags Applied by Michael
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image processing, image, bioinformatics, data, plot
Files Tagged by Michael View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
11 Jan 2013 Screenshot Simple Object Creation in Matlab Object Oriented Programming (OOP) The objective is to provide a simple sample code to illustrate OOP in Matlab. Author: Michael Chan oop, objectoriented progra..., data formatting, interpretator 15 0
21 Jun 2012 Screenshot Image Description Notes (with LSB encoding) The objective is to illustrate how certain reference may be made to a given image. Author: Michael Chan text, data hiding, description, bit, profile, lsb 18 0
07 May 2012 Screenshot Embedding/ Hiding Image Within Image (with LSB encoding) The objective is to illustrate how an image may be embedded or hidden within another given image. Author: Michael Chan bit, data hiding, description, lsb, profile, image within image 41 3
09 Apr 2012 Wavelet Decomposition For Images The demo decouples the wavelet operations from the plotting. Author: Michael Chan denoising, transform, compression, wavelet, multiresolution, image processing 70 6
  • 3.33333
3.3 | 3 ratings
09 Mar 2012 Screenshot Perspective Control/ Correction The objective is to give a simple demonstration on perspective control using 4 corners of a plane. Author: Michael Chan image processing, perspective, control, affine, transformation, adjust 25 0
  • 5.0
5.0 | 1 rating

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