Including the filename in a matrix with many other values

New to matlab. I have a program that opens many images and spits back values for each variable; each line represents a new image and has 9 variables seperated by a space. I can't find a way to get it to tell me which file it has open to give me those values. Can anyone help?

Answer 1

[Walter Roberson]

Use a cell array if you need it as a variable. For example,

   for K = 1 : 10
      filename = sprintf('ghoatkidney_%02d.bmp', K);
      thisimage = imread(filename);
      nine_stats = calculate_some_statistics(thisimage);
      nine_stats_cell = num2cell(nine_stats);
      outputs{K,1} = filename;
      outputs{K,2:10} = nine_stats_cell{:};
    end

[Troy Steiner]

Really new to matlab, sorry. so here are the 9 variables:

    topoutward = [topleftoutward toprightoutward];
    bottominward = [bottomleftinward bottomrightinward];
    topinward = [topleftinward toprightinward];
    bottomoutward = [bottomleftoutward bottomrightoutward];

    inwardmean = mean(mean(imageedit_inward));
    outwardmean = mean(mean(imageedit_outward));
    topinwardmean = mean(mean(topinward));
    bottominwardmean = mean(mean(bottominward));
    topoutwardmean = mean(mean(topoutward));
    bottomoutwardmean = mean(mean(bottomoutward));
    fullratio = inwardmean/outwardmean;
    topratio = topinwardmean/topoutwardmean;
    bottomratio = bottominwardmean/bottomoutwardmean;

Are you suggesting I need to add this in to the "nine_stats" variable? Would the top line read filename = sprintf('*.bmp', K)?

[Walter Roberson]

nine_stats = [inwardmean, outwardmean, topinwardmean, bottominwardmean, topoutwardmean, bottomoutwardmean, fullratio, topratio, bottomratio];

and

filename = sprintf('%d.bmp', K);

if the file names are to be 1.bmp 2.bmp 3.bmp ... 10.bmp 11.bmp and so on.

If the file names are to be extracted from a directory then see

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F