<p>In <a href="https://github.com/mlpack/mlpack/pull/696#discussion_r67197393">src/mlpack/methods/edge_boxes/feature_extraction_impl.hpp</a>:</p>
<pre style='color:#555'>> + CubeType inc_ch = this->CopyMakeBorder(channels, p, p, p, p);
> + for (size_t i = 0, channel = 0; i < loc.n_rows; ++i)
> + {
> + size_t x = loc(i, 0);
> + size_t y = loc(i, 1);
> +
> + /*(x,y) in channels, is ((x+p), (y+p)) in inc_ch*/
> + //cout << "(x,y) = " << x << " " << y << endl;
> + CubeType patch = inc_ch.tube((x + p) - p, (y + p) - p,\
> + (x + p) + p - 1, (y + p) + p - 1);
> + // since each patch has 13 channel we have to increase the index by 13
> +
> + //cout <<"patch size = " << arma::size(patch) << endl;
> +
> + features.slices(channel, channel + 12) = patch;
> + //cout << "sahi hai " << endl;
</pre>
<p>Meaning: "it is correct" (Hindi)</p>
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