can somebody help me to generate a confusion matrix for this multisvm code?

Question

Hadeer tawfik 2016-10-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/308664-can-somebody-help-me-to-generate-a-confusion-matrix-for-this-multisvm-code

评论： kokeb Dese 2018-8-9

I have been trying to plot a confusion matrix for this svm code but im reaching nowhere,so the purpose of my code is to classify my 95 images into 3 classes, i have made the training_label which is the label of every image.then i don't know how to generate the confusion matrix. here is the code

close all
clear all
clc
srcFiles = dir('E:\sense\cata2\cata\all\*.jpg');
for i = 1 : length(srcFiles)
    filename = strcat('E:\sense\cata2\cata\all\',srcFiles(i).name);
Img = imread(filename);
Img = imresize(Img,[256,256]);
%figure, imshow(Img); title('Image');
% Enhance Contrast
I = imadjust(Img,stretchlim(Img));
figure, imshow(I);title('Contrast Enhanced');
% Extract Features from query image
[Feature_Vector] = Extract_FeaturesofSoilforall(I);
whos Feature_Vector
% Load Training Features
[X,T] = cataractdataset;
 TrainFeat = X;
 Train_Label = T;
test = Feature_Vector;
result = multisvm(TrainFeat,Train_Label,test)
disp(result)
if result == 1
   helpdlg(' grade1');
   disp(' grade1 ');
elseif result == 2
    helpdlg(' last ');
    disp('last');
elseif result == 3
    helpdlg('normal');
    disp(' normal ');
end
confMat = confusionmat(,test )
end