Rank: 101 based on 429 downloads (last 30 days) and 5 files submitted
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Pascal Getreuer

E-mail
Company/University
Yale

Personal Profile:

http://www.getreuer.info

Professional Interests:
inverse problems, image processing, multiresolution

 

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Files Posted by Pascal View all
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14 Jan 2011 Screenshot tvreg: Variational Image Restoration and Segmentation TV-based image restoration and Chan-Vese segmentation. Usable from MATLAB or C/C++. Author: Pascal Getreuer image processing, optimization 58 2
  • 5.0
5.0 | 1 rating
14 Jan 2011 Screenshot Colorspace Transformations Transform colors between sRGB, YCbCr, YPbPr, YUV, YIQ, HSV, HSL, HSI, XYZ, Lab, Luv, LCH, CAT02 LMS Author: Pascal Getreuer color, image processing 103 7
  • 5.0
5.0 | 4 ratings
01 Apr 2010 Screenshot Writing MATLAB C/MEX Code MEX: Combine the power of MATLAB and C Author: Pascal Getreuer programming, article, paper, whitepaper, mex, external interface 45 2
  • 5.0
5.0 | 2 ratings
01 Dec 2009 Filter Coefficients to Popular Wavelets Reference of wavelet filter coefficients and lifting scheme implementations. Author: Pascal Getreuer cdf 97, daubechies, symlets, wavelets, coiflets, spline 37 9
  • 4.45455
4.5 | 12 ratings
10 Feb 2009 Screenshot Writing Fast MATLAB Code Speed up your project with this collection of techniques. Author: Pascal Getreuer programming, paper, optimization, article, efficiency, vectorization 186 48
  • 4.3662
4.4 | 72 ratings
Comments and Ratings by Pascal
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30 Sep 2010 Colorspace Transformations Transform colors between sRGB, YCbCr, YPbPr, YUV, YIQ, HSV, HSL, HSI, XYZ, Lab, Luv, LCH, CAT02 LMS Author: Pascal Getreuer

Thanks, Matteo!

The difference between this package and my previous 2006-2008 Color Space Converter is that colorspace is now implemented in C code. There are two advantages to this. First, colorspace now runs in MATLAB as a MEX function, which is noticeably more efficient than the previous M-code version. Second, colorspace can also be used from normal C and C++ programs---MATLAB is not required to use colorspace.

In case MEX is not an option, a pure M-code version of colorspace is also included (effectively an updated version of the previous colorspace).

Additionally, the sRGB definition of gamma-corrected RGB is now used, and two spaces have been added (HSI and CIE CAT02 LMS).
Comments and Ratings on Pascal's Files View all
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24 Jan 2012 Writing Fast MATLAB Code Speed up your project with this collection of techniques. Author: Pascal Getreuer Körner, Sven
07 Dec 2011 Colorspace Transformations Transform colors between sRGB, YCbCr, YPbPr, YUV, YIQ, HSV, HSL, HSI, XYZ, Lab, Luv, LCH, CAT02 LMS Author: Pascal Getreuer Orloff, Nathan

For the same images, this is about 2 times as fast as:

cform = makecform('srgb2lab');
lab_Ia = applycform(Ia,cform);

Which is fantastic.
06 Jul 2011 tvreg: Variational Image Restoration and Segmentation TV-based image restoration and Chan-Vese segmentation. Usable from MATLAB or C/C++. Author: Pascal Getreuer bmv

Adaptive lambda does not work for the case of 'L2' and works for 'L1':

Warning: Matrix is singular to working precision.
> In uupdategs at 14
  In tvrestore at 155
  In tvdenoise at 24

In the first case the output contains NaN
27 Jun 2011 Writing Fast MATLAB Code Speed up your project with this collection of techniques. Author: Pascal Getreuer Smith, David
20 May 2011 Colorspace Transformations Transform colors between sRGB, YCbCr, YPbPr, YUV, YIQ, HSV, HSL, HSI, XYZ, Lab, Luv, LCH, CAT02 LMS Author: Pascal Getreuer Yajun

thanks very much for your good job,it has been an obstacle for me for a long time

Top Tags Applied by Pascal
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article, image processing, optimization, paper, programming
Files Tagged by Pascal View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
14 Jan 2011 Screenshot tvreg: Variational Image Restoration and Segmentation TV-based image restoration and Chan-Vese segmentation. Usable from MATLAB or C/C++. Author: Pascal Getreuer image processing, optimization 58 2
  • 5.0
5.0 | 1 rating
14 Jan 2011 Screenshot Colorspace Transformations Transform colors between sRGB, YCbCr, YPbPr, YUV, YIQ, HSV, HSL, HSI, XYZ, Lab, Luv, LCH, CAT02 LMS Author: Pascal Getreuer color, image processing 103 7
  • 5.0
5.0 | 4 ratings
01 Apr 2010 Screenshot Writing MATLAB C/MEX Code MEX: Combine the power of MATLAB and C Author: Pascal Getreuer programming, article, paper, whitepaper, mex, external interface 45 2
  • 5.0
5.0 | 2 ratings
01 Dec 2009 Filter Coefficients to Popular Wavelets Reference of wavelet filter coefficients and lifting scheme implementations. Author: Pascal Getreuer cdf 97, daubechies, symlets, wavelets, coiflets, spline 37 9
  • 4.45455
4.5 | 12 ratings
10 Feb 2009 Screenshot Writing Fast MATLAB Code Speed up your project with this collection of techniques. Author: Pascal Getreuer programming, paper, optimization, article, efficiency, vectorization 186 48
  • 4.3662
4.4 | 72 ratings

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