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https://gitcode.com/gh_mirrors/ope/OpenFace.git
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25 lines
879 B
Matlab
25 lines
879 B
Matlab
function [ output_maps ] = convolution( input_maps, kernels, biases )
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%CONVOLUTION Summary of this function goes here
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% Detailed explanation goes here
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% If MatConvNet is not installed use Matlab (much slower)
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if(exist('vl_nnconv', 'file') == 3)
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output_maps = vl_nnconv(single(input_maps), kernels, biases);
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else
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n_filters = size(kernels, 4);
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kernels2 = kernels(:,:,end:-1:1,:);
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for i=1:n_filters
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for n_in_maps=1:size(kernels,3)
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kernels2(:,:,n_in_maps,i) = fliplr(squeeze(kernels2(:,:,n_in_maps,i)));
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kernels2(:,:,n_in_maps,i) = flipud(squeeze(kernels2(:,:,n_in_maps,i)));
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end
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end
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output_maps = [];
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for i=1:n_filters
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output_maps = cat(3, output_maps, convn(input_maps, kernels2(:,:,:,i), 'valid') + biases(i));
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end
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end
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end
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