how to read images form folders directory

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Tulips 2012-10-20

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评论： Image Analyst 2016-4-21

采纳的回答： Matt J

hi, how to reasd images , say '*.png' images from folders in directory and produce output same as folder name.

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Matt J 2012-10-20

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在 MATLAB Online 中打开

So each sub-folder contains only 1 file (a .png file)?

The code below puts the results in the structure Images.foldername

   D = dir(directory_name);
   D(1:2)=[];
   D(~D.isdir)=[];
for i=1:length(D)
    foldername=D(i).name;
    pth=[directory_name pathsep foldername]);
    files=dir(pth);
      files(files.isdir)=[];
    for j=1:length(files)
      [p,n,e]=fileparts(files.name(j));
       if strcmp(e,'.png')
         Images.(foldername)=imread(files.name(j));
         break;
       end
    end
end

In a folder there have 24 images which in *.png extension with each of them consists of 20x20 dimensions. for the recognition part, it recognize, like this Input is apple.png The output is 2.png '2.png' is referred to as one of 24 images that have been recognized. The problem is how can I create folders and subfolders that represents different type of fruit that each of them consist of 5 images inside it. So that, when the sytem recoznize (2.png) it shows that the output is referred to apple from the folder of different fruits I created. Anyone?

Image Analyst 2012-10-22

See comment in my answer.

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Image Analyst 2012-10-22

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编辑：Image Analyst 2012-10-22

You may be interested in the FAQ http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F which has several code examples.

OK, that's totally different. You need a function called "ClassifyFruit" that takes an image and then returns the class number 1-5 depending on whether it's an apple, banana, peach, etc. Then use sprintf() to create the folder name, and mkdir to create it if you don't have it. Then create the full filename with sprintf and use imwrite to copy the image to that folder.

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Tulips 2012-10-29

how to create a ClassifyFruit function.can u give hint or idea on this?

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sawsan mahmood 2016-4-21

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hi , please I need help I have database of iris segmentation a folder contain 241 subfolders (named from 1 to 241) each of them contain 5 images (named from Img_1_1_1 to Img_1_1_5)and second subfolder's image named (Img_2_1_1 to Img_2_1_5) and so on ,please I need code to read the first image only from each subfolder and make same processing to them thanks