Rank: 322 based on 195 downloads (last 30 days) and 2 files submitted
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Abbas Cheddad

E-mail
Company/University
Umeå Universitet

Personal Profile:

www.abbascheddad.net

Professional Interests:
Image Processing, Computer Vision, Steganography, Pattern Recognition, Optical Projection Tomography, etc

 

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Files Posted by Abbas View all
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06 Aug 2011 Screenshot A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad voronoi diagram, object extraction, image segmentation, clustering, histogram, vertices 173 2
  • 4.5
4.5 | 2 ratings
02 Sep 2009 Screenshot Tamper-proof digital files An example of a self-embedding scenario Author: Abbas Cheddad digital forgery, tamperproof, steganography, selfembedding, watermarking, image processing 22 3
  • 5.0
5.0 | 1 rating
Comments and Ratings by Abbas View all
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23 Aug 2010 Objective Image Fusion Performance Measure Objective Image Fusion Performance Measure Author: Richang Hong

Hi,
Would you please tell me why some of your model parameters are set to the negative value:

In yours:

L=1; Tg=0.9994;kg=-15;Dg=0.5;Ta=0.9879;ka=-22;Da=0.8;

In the original paper of Xydeas and Petrovic:
L=1.5, Γg=0.9994 , κ g=15 , σ g=0.5 and Γα=0.9879 , κα=22 , σα=0.8
05 Aug 2010 A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad

There is a mistake in counting the colour number. I sent the updated file to Matlabcentral but am not sure when they will update it.
Around line 198, please change the if statement to:

if length(size(Im))==3
Im(:,:,1)=im2double(Orig);
Orig=ntsc2rgb(Im);
[x xx]=imhist(Im(:,:,1));
xx(x==0)=0;
Array=xx(xx>0);

else
    
[x xx]=imhist(im2uint8(Orig(:,:,1)));% Corrected! There was a mistake here since it was written as: [x xx]=imhist(Im(:,:,1));
xx(x==0)=0;
Array=xx(xx>0);

end

%%%Please remove the following line 209
[x xx]=imhist(Im(:,:,1));
xx(x==0)=0;
Array=xx(xx>0);
19 Apr 2010 Tamper-proof digital files An example of a self-embedding scenario Author: Abbas Cheddad

Thanks for the comment Tim. There is no doubt that the word "wanna" is grammatically not correct. But if you want to attract teenagers you need to speak their language. The software demo was not meant to teach them grammar, and definitely students did not come to pick up grammar from me :)
Comments and Ratings on Abbas' Files View all
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Updated File Comment by Comments Rating
10 Aug 2010 A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad Sharma, Priyanka
05 Aug 2010 A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad Cheddad, Abbas

There is a mistake in counting the colour number. I sent the updated file to Matlabcentral but am not sure when they will update it.
Around line 198, please change the if statement to:

if length(size(Im))==3
Im(:,:,1)=im2double(Orig);
Orig=ntsc2rgb(Im);
[x xx]=imhist(Im(:,:,1));
xx(x==0)=0;
Array=xx(xx>0);

else
    
[x xx]=imhist(im2uint8(Orig(:,:,1)));% Corrected! There was a mistake here since it was written as: [x xx]=imhist(Im(:,:,1));
xx(x==0)=0;
Array=xx(xx>0);

end

%%%Please remove the following line 209
[x xx]=imhist(Im(:,:,1));
xx(x==0)=0;
Array=xx(xx>0);
30 Jul 2010 A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad Samir

Yet another brilliant piece of code from you Abbas! Thank you very much for posting that.
30 Jul 2010 A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad Samir
19 Apr 2010 Tamper-proof digital files An example of a self-embedding scenario Author: Abbas Cheddad Cheddad, Abbas

Thanks for the comment Tim. There is no doubt that the word "wanna" is grammatically not correct. But if you want to attract teenagers you need to speak their language. The software demo was not meant to teach them grammar, and definitely students did not come to pick up grammar from me :)
Top Tags Applied by Abbas
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cell segmentation, clustering, delaunay triangulation, digital forgery, face detection
Files Tagged by Abbas View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
06 Aug 2011 Screenshot A Fast Image Segmentation using Delaunay Triangulation A fully automated process that does not require initial estimate of number of clusters. Author: Abbas Cheddad voronoi diagram, object extraction, image segmentation, clustering, histogram, vertices 173 2
  • 4.5
4.5 | 2 ratings
02 Sep 2009 Screenshot Tamper-proof digital files An example of a self-embedding scenario Author: Abbas Cheddad digital forgery, tamperproof, steganography, selfembedding, watermarking, image processing 22 3
  • 5.0
5.0 | 1 rating

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