error is : Subscripted assignment dimension mismatch.

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Ushna Asif
Ushna Asif on 14 Nov 2015
Answered: Dima Lisin on 23 Nov 2015
this is my code for extraction of feature from folder having three sub folders but i am giving error at line trainingFeatures(featureCount,:)= ..... error is : Subscripted assignment dimension mismatch.
trainingFeatures = zeros(size(training,2)*training(1).Count,1008);
featureCount = 1;
for i=1:size(training,2)
for j = 1:training(i).Count
trainingFeatures(featureCount,:)= extractHOGFeatures(read(training(i),j));
trainingLabel{featureCount} = training(i).Description;
featureCount = featureCount + 1;
end
personIndex{i} = training(i).Description;
end

Accepted Answer

Dima Lisin
Dima Lisin on 23 Nov 2015
You may be getting this error because there may be different numbers of images in each imageSet. The easiest thing to do here is to make trainingFeatures a cell array.

More Answers (1)

Image Analyst
Image Analyst on 14 Nov 2015
You say size(training,2) indicating training is a 2D array, but then you later say training(i).Description indicating it's a 1-D array of structures. Before the loop, what does it say if you do this:
class training
whos training
size(training)
  2 Comments
Image Analyst
Image Analyst on 16 Nov 2015
Sorry, I don't have the Computer Vision System Toolbox so I can't test anything with imageset variables. Perhaps Dima will answer.

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