<p>In <a href="https://github.com/mlpack/mlpack/pull/683#discussion_r66470245">src/mlpack/methods/edge_boxes/feature_extraction_impl.hpp</a>:</p>
<pre style='color:#555'>&gt; +  U = L % (13 * 4 * (xyz.slice(0) % nz) - 13 * 0.197833) + 88 * maxi;
&gt; +  V = L % (13 * 9 * (xyz.slice(1) % nz) - 13 * 0.468331) + 134 * maxi;
&gt; +
&gt; +  CubeType OutImage(InImage.n_rows, InImage.n_cols, InImage.n_slices);
&gt; +  OutImage.slice(0) = L;
&gt; +  OutImage.slice(1) = U;
&gt; +  OutImage.slice(2) = V;
&gt; +  //OutImage = arma::join_slices(L,U);
&gt; +  //OutImage = arma::join_slices(OutImage, V);
&gt; +  return OutImage; 
&gt; +}
&gt; +
&gt; +template&lt;typename MatType, typename CubeType&gt;
&gt; +MatType StructuredForests&lt;MatType, CubeType&gt;::
&gt; +bilinearInterpolation(MatType const &amp;src,
&gt; +                      size_t height, size_t width)
</pre>
<p>Nice candidate for const member function</p>

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