# dtr43

4 questions

1

votes

1

answer

25

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### Creating an adjacency matrix from a cell array

I'm going to create an adjacency matrix from a cell array, but faced two main problems:
I don't know how to access to cell array's elements; so an adhoc method was used.
(and the most important) The code produces an error and the partial result is also a weird one!
The cell array is as the following...

5

votes

1

answer

105

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### Drawing Region Adjacency Graph

Having centroids of superpixels for an image, is there any MATLAB function for drawing region adjacency graph ?
L = superpixels(A, 200);
K=regionprops(L, 'Centroid'); % Detemining centroid coordinates of each superpixels
P.S. Similar but not exact solutions :
https://www.mathworks.com/matlabcentr...

7

votes

2

answer

184

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### Adjacent and non-adjacent superpixels for an superpixel in an image

After segmenting an image into N superpixels, I need to specify the superpixels that are adjacent or non-adjacent to one superpixel and determine this relationship for all superpixels.
[L,NumLabels] = superpixels(A,200);
How can I specify the adjacent superpixels for each of superpixels ?
Update
I...

3

votes

1

answer

39

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### Mean color for each superpixel in an image in the CIELAB colorspace

According to the MATLAB's help for measuring mean color for each superpixel, I segment an image to 200 superpixels and I tried to set the color of each pixel in the output image to the mean CIELAB color of the superpixel region.
The input image is shown below:
B=imread('H.jpg');
A=rgb2lab(B); //...