saving multilabeled RGB image stack as Text(.txt) file

Hi All

I have a stack of 200 microstructure images, the grains in images have been labeled by using 3D watershed segmentation technique and then converted to RGB by label2rgb() function with 'colorcube' as colormap. I have used the following code to save this dataset as text file, but this code only saves the voxel information of each 3D label to text file but not the color of each label(when i visualized by using this resulting text file then it seems like a grayscale image). I do not know how to save this 3D dataset to text file which contain information of each 3D label along with its color, please help me. The code i am using is:

 clc;
 clear all;
 n=200;      
 fidIn=0;
 fidOut=fopen('labeled.txt', 'w');
 for i=1:n
 strFileName=strcat('section',num2str(i),'.tiff');
 % here 'section' is the colored RGB image
 fidIn=imread(strFileName); 
 [M,N]=size(fidIn);
 x = repmat('%d ',1,(N-1));
 fprintf(fidOut,[x,'%d\n'],fidIn);
  end
 fclose(fidOut);

Any help will be highly appreciated.

Thanks

Answer 1

[Image Analyst]

I don't know what that code is but it doesn't seem related to what you said - no label2rgb() call, etc.

Basically, just scan each colored image writing it's values

fid = fopen('labeled.txt', 'wt'); % Note: wt.
for row = 1 : rows
  for col = 1 : cols
    value = labeledImage(row, column);
    fprintf(fid, '%d %d %d %f %f %f\n', row, col, value, colorMap(value, 1), colorMap(value, 2), colorMap(value, 2),);
  end
end

[Asadullah]

Thank you so much for helping!