Computing Color Gaussian Kernel

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Algorithms Analyst 2013-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/63950-computing-color-gaussian-kernel

Can anybody help me how to compute the color Gaussian Kernel described in the paper.I am confused what is Uj and Uk.

http://philippe.noriega.free.fr/fichiers/visapp06.pdf

Thanks

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José-Luis 2013-2-18

编辑：José-Luis 2013-2-18

What have you done so far? What specific Matlab problems have you encountered in your implementation? Do you seriously expect someone to read a Paper and give you the code? For that please try the file exchange. Otherwise, people generally get paid for such tasks.

Algorithms Analyst 2013-2-18

I am not expecting from anyone to implement it.As I have impelemnt it uptill Spatial Gaussian Kernel.Just need to get idea what is Uk and Uj for computing Color Gassian Kernel?For color Quantization I transformed rgbimage into YUV color space and then I selected only two of them U and V as described in the paper then I reduce UV image using Kmeans algorithm upto 40 after that I computer Spatial Gaussian Kernel now the Problem is how to compute du and dv as they did not described in detail what is Uk and UJ?I assumed they are two different clusters in U image?thats why i need to clear myself.

Thanks.

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Image Analyst 2013-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/63950-computing-color-gaussian-kernel#answer_75505

You compute the YUV image from the RGB image. The Uk and Uj are just pixel values from the U image, taken from different locations, location j and location k. They are not clusters.

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Algorithms Analyst 2013-2-20

thanx.I appreciate you...

Algorithms Analyst 2013-2-20

在 MATLAB Online 中打开

But if you have time then you can guide me.AS you told I did it like that

Image=imread('Uimage');

 imageWidth = size(image, 2);
 imageHeight = size(image, 1); 
 windowWidth = 100;
 windowHeight = 100; 
 for j = 1:imageHeight - windowHeight + 1
     for i = 1:imageWidth - windowWidth + 1
        slidingwindow = image(j:j + windowHeight - 1, i:i + windowWidth - 1, :);
     end
 end
%%Now I got the sliding window and need to compute the centre pixels