Train Images in MATLAB with Artificial Neural Networks

How can we train images in matlab using artificial neural network?

Siva_rgng asked: 2021-07-28 ann , matlab , programming

Learn how to train images using artificial neural networks in MATLAB. This comprehensive resource provides step-by-step guidance and practical examples. Start b

Expert Answer

John Michell answered . 2025-07-04 01:12:12

Typically, especially for huge sizes, some form of feature extraction is used to reduce the size of the input.

So, instead of image --> image(:), you get image --> featurevector.

If the number of extracted features is I, then the input matrix for N images has size

 [ I N ] = size(input);

Next, if there are c categories with Ni (1=1:c) members each, the corresponding target matrix has N columns from the c dimensional unit matrix eye(c) so that

 [ c N ] = size(target),

 sum(target) = ones(1,N),

 sum(target') = [ N1, N2, ...Nc],

 and 

 sum(sum(target)) = sum(sum(target')) = sum(target(:)) = N

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