How can I display the predicted labels in command window or in a text file.

Question

Javid Hamdard 2021-8-3

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/891107-how-can-i-display-the-predicted-labels-in-command-window-or-in-a-text-file

评论： Walter Roberson 2021-8-11

I have trained two models: Model A is trained on 34 classes of words, and Model B is Trained on 14 classes of alphanumeric characters. I should load both models at the same time in order to recognize the word and alphanumeric characters series from vehicle license plate, and then display the predicted lables into command window or write the results to text file. Everthing work well until classification of each word and characters, but I don't know how to dispaly the classification result into text file or display the results into command window. Therefore, I am in dire need of your help. Thank you very much all of you.

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Walter Roberson 2021-8-10

The part of the code that caused 'HRT 875326 %' to be displayed: show us that.

The part of the code that cause 'SEVEN 99.9979 %' to be displayed: show us that.

Javid Hamdard 2021-8-11

编辑：Javid Hamdard 2021-8-11

在 MATLAB Online 中打开

@Walter Roberson

load model_A
filePattern = fullfile(myFolder, '*.jpg'); 
theFiles = dir(filePattern);
for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);
    %reading it in as an image array 
    imageArray = imread(fullFileName);
    I2= imresize(imageArray,[51 21],'nearest');
    [YPredA,scoresA] = classify(netA,I2);
    scoresA = max(double(scoresA*100));
    for j = 1 : length(theFiles)
    end
    figure(),imshow(imageArray);
    title(join([string(YPredA),'' ,scoresA ,'%']))
   %----------------------------------------------------
    %this part reading province (HRT).
    load model_B
I2= imresize(im,[29 64],'nearest');
[YPred,scores] = classify(net,I2);
scores = max(double(scores*100));
figure (10),imshow(im);
title(join([string(YPred),'' ,scores ,'%']))
%-----------------------------------------------------------------------------------------

I would like to display the result to a text file or command window like "HRT77188SH"

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Answer 1

Walter Roberson 2021-8-10

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/891107-how-can-i-display-the-predicted-labels-in-command-window-or-in-a-text-file#answer_764297

fprintf() or fwrite() to save the information into a file.

For display purposes, you will may need sprintf() or compose() or strjoin() or the [] (horzcat) operator.

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Walter Roberson 2021-8-11

在 MATLAB Online 中打开

load model_A
filePattern = fullfile(myFolder, '*.jpg'); 
theFiles = dir(filePattern);
nfiles = length(theFiles);
predictions_A = cell(1,nfiles);
for k = 1 : nfiles
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);
    %reading it in as an image array 
    imageArray = imread(fullFileName);
    I2= imresize(imageArray,[51 21],'nearest');
    [YPredA,scoresA] = classify(netA,I2);
    scoresA = max(double(scoresA*100));
    figure(),imshow(imageArray);
    title(join([string(YPredA),'' ,scoresA ,'%']))
    predictions_A{k} = pred2nameA(YpredA);
end
%----------------------------------------------------
%this part reading province (HRT).
load model_B
I2= imresize(im,[29 64],'nearest');
[YPred,scores] = classify(net,I2);
scores = max(double(scores*100));
figure (10),imshow(im);
title(join([string(YPred),'' ,scores ,'%']))
predictions = pred2name(Ypred);
%-----------------------------------------------------------------------------------------
overall_name = [predictions predictions_A{:}];
disp(overall_name);
fprintf(fid, '%s\n', overall_name);
function predname = pred2name(Ypred)
   predname = char(Ypred);
end
function predname = pred2name_A(YpredA)
   cYpredA = char(YPredA);
   from_names = {'ONE', 'TWO', 'THREE', 'FOUR', 'FIVE', 'SIX', 'SEVEN', 'EIGHT', 'NINE', 'SHIN'};
   to_names   = {'1',   '2',   '3',     '4',     '5',   '6',   '7',     '8',     '9',    'SH'};
   [found, idx] = ismember(cYPredA, from_names);
   if found
      predname = to_names{idx};
   else
       predname = cYPredA;
   end
end

Javid Hamdard 2021-8-11

Dear @Walter Roberson, could you please recheck the code? I tried the code but I got error message as seen in picture. I tried my best but unable to resolve that. I appreciate your help so much.