How to create a database of feature vectors for images?

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Elias Unk
Elias Unk 2017-6-18
评论： Elias Unk 2017-6-19
I have a database of around 4 classes each consistent of around 50 images.I created a features vector on matlab to extract the features i need from each image.My question is how to create the database of vectors for all the images to then train them per class .

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KSSV
KSSV 2017-6-19
N = 50 ; % number of fimages
C = 4 ; % number of classes
%%loop for each image
iwant = cell(N,C) ;
for i = 1:N
%%Extract the features of images,
iwant{i,1} = rand(10) ;
iwant{i,2} = rand(5) ;
iwant{i,3} = rand(6) ;
iwant{i,4} = rand(11) ;
end
%%Rows corresponds to each image, and columns correspon to each class of the respective image
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KSSV
KSSV 2017-6-19
If vec1,vec2, vec3 and vec4 are your feature vectors for image 1. Use: iwant{i,1} = vec1 ; iwant{i,2} = vec2 ; iwant{i,3} = vec3 ; iwant{i,4} = vec4; end
Elias Unk
Elias Unk 2017-6-19
nope i have 1 feature vector of 110 elements i just combined all the features extraction in 1 final vector so that each image will have only 1 vector extracted of it formed of 110 elements that i then normalized and transformed to 1 element,hope that made you better understand the issue.

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