How to load CASIA Iris Version V1 database images..

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Jyothi Alugolu 2017-5-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/340451-how-to-load-casia-iris-version-v1-database-images

评论： Parul 2022-10-29

Hello, CASIA Iris Image Database Version 1.0 (CASIA-IrisV1) includes 756 iris images from 108 eyes. For each eye, 7 images are captured in two folders...totally there are 108 folders(eyes) and each folder contains 2 sub-folders by name 1 (right eye) and 2 (left eye)..1st sub-folder contains 3 images and 2nd sub-folder contains 4 images... How can i load all the images from all the folders and sub-folders?

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Jyothi Alugolu 2017-5-16

that is not the question which i asked... i used recures.m file,but i am not getting all the subfolder images..

KSSV 2017-5-16

How your question of accessing images in sub folders/ folders is different from what given in the link?

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Walter Roberson 2017-5-16

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/340451-how-to-load-casia-iris-version-v1-database-images#answer_267194

在 MATLAB Online 中打开

https://www.mathworks.com/help/vision/ref/imageset-class.html

imgSetVector = imageSet(imgFolder,'recursive')

After that you can use https://www.mathworks.com/help/vision/ref/imageset.read.html

Or you could create an imageDatastore, and use it; see for example https://www.mathworks.com/help/matlab/import_export/read-and-analyze-image-files.html

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Jyothi Alugolu 2017-5-16

编辑：Walter Roberson 2017-5-16

在 MATLAB Online 中打开

i tried something like this:

close all;
clc;
count=0;
% the folder in which ur images exists
adata(1).f='00';
adata(2).f='0';
for i=1:108
    for k=1:4
       for j=1:2
               if(i<10)
                   input=strcat('C:\Users\admin\Desktop\Databases\Iris\CASIA-IrisV1\CASIA Iris Image Database (version 1.0)\',[adata(1).f,num2str(i)],'\',num2str(j),'\',[adata(1).f,num2str(i)],'_',num2str(j),'_',num2str(k),'*.bmp');
                   kk=strcat('C:\Users\admin\Desktop\Databases\Iris\CASIA-IrisV1\CASIA Iris Image Database (version 1.0)\',[adata(1).f,num2str(i)],'\',num2str(j),'\',[adata(1).f,num2str(i)],'_',num2str(j),'_',num2str(k));
               elseif(i>=10 && i<=99)
                   input=strcat('C:\Users\admin\Desktop\Databases\Iris\CASIA-IrisV1\CASIA Iris Image Database (version 1.0)\',[adata(2).f,num2str(i)],'\',num2str(j),'\',[adata(2).f,num2str(i)],'_',num2str(j),'_',num2str(k),'*.bmp');
                   kk=strcat('C:\Users\admin\Desktop\Databases\Iris\CASIA-IrisV1\CASIA Iris Image Database (version 1.0)\',[adata(2).f,num2str(i)],'\',num2str(j),'\',[adata(2).f,num2str(i)],'_',num2str(j),'_',num2str(k));
               else
                   input=strcat('C:\Users\admin\Desktop\Databases\Iris\CASIA-IrisV1\CASIA Iris Image Database (version 1.0)\',num2str(i),'\',num2str(j),'\',num2str(i),'_',num2str(j),'_',num2str(k),'*.bmp');
                   kk=strcat('C:\Users\admin\Desktop\Databases\Iris\CASIA-IrisV1\CASIA Iris Image Database (version 1.0)\',num2str(i),'\',num2str(j),'\',num2str(i),'_',num2str(j),'_',num2str(k));
              end
         end
      end
   end     
          srcFiles = dir(input);
            p=length(srcFiles);

Jyothi Alugolu 2017-5-16

编辑：Walter Roberson 2017-5-16

在 MATLAB Online 中打开

i tried using recurse.m ...

code:

clc;    % Clear the command window.
workspace;  % Make sure the workspace panel is showing.
format long g;
format compact;
start_path = fullfile(matlabroot, 'bin');
%Ask user to confirm or change.
topLevelFolder = uigetdir(start_path);
if topLevelFolder == 0
  return;
end
%Get list of all subfolders.
allSubFolders = genpath(topLevelFolder);
%Parse into a cell array.
remain = allSubFolders;
listOfFolderNames = {};
while true
  [singleSubFolder, remain] = strtok(remain, ';');
  if isempty(singleSubFolder)
    break;
  end
  listOfFolderNames = [listOfFolderNames singleSubFolder];
end
numberOfFolders = length(listOfFolderNames);
%Process all image files in those folders.
for k = 1 : numberOfFolders
  %Get this folder and print it out.
  thisFolder = listOfFolderNames{k};
  fprintf('Processing folder %s\n', thisFolder);
  
  
  filePattern = sprintf('%s/*.bmp', thisFolder);
  baseFileNames = dir(filePattern);
  aa=natsortfiles({baseFileNames.name});
  
  
   numberOfImageFiles = length(aa);
  %Now we have a list of all files in this folder.
  
  if numberOfImageFiles >= 1
%    Go through all those image files.
    for f = 1 : numel(aa)   %%here aa is being 4 because 108th user 2nd folder contains 4 images
M1{f} = [imread(fullFileName)];   %%only 4 images are being stored..
  
      fullFileName = fullfile(thisFolder,aa{f});
end
      fprintf('\nProcessing image file %s\n', fullFileName);
                end
  fprintf('Folder %s has no image files in it.\n', thisFolder);
end

In the above code, variable aa is storing last user 2nd folder images and those images are being return by variable M..

But what i want is...108 folders with 7 images...so,finally M must have 756 images..(because 108 * 7 = 756);...

Walter Roberson 2018-2-6

https://www.mathworks.com/matlabcentral/answers/?term=iris+neural

Parul 2022-10-29

@Jyothi Alugolu can you please share the code for iris preprocessing on casia iris version 1 database

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