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Pretrained networks in matlab for extraction of deep features from images

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Sparkle89 on 15 May 2019
Answered: Shounak Mitra on 17 May 2019
I have found the Pretrained networks list in matlab documentation. I want to use a pretrained network for binary classification. The input is a 32x32 image patch.
In the documentation the minimum input size found is 224x224. How can I use my 32x32 image patch in this? Which is the good pretrained network for binary classification. I just started learning deep learning. Please help me with this.

Accepted Answer

Shounak Mitra
Shounak Mitra on 17 May 2019
Try using imresize() to scale your image to fit the network dimensions.
Usage Example:
% Access the trained model
net = alexnet
% See details of the architecture
% Read the image to classify
I = imread('peppers.png');
% Adjust size of the image
sz = net.Layers(1).InputSize
I = I(1:sz(1),1:sz(2),1:sz(3));
% Classify the image using AlexNet
label = classify(net, I)
% Show the image and the classification results

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