<p>In <a href="https://github.com/mlpack/mlpack/pull/683#discussion_r66476646">src/mlpack/methods/edge_boxes/feature_extraction_impl.hpp</a>:</p>
<pre style='color:#555'>> + kernel(i) = i + 1;
> +
> + kernel(radius) = radius + 1;
> +
> + for( size_t i = radius + 1; i < len; ++i)
> + kernel(i) = i - 1;
> + return this->sepFilter2D(InImage, kernel, radius);
> + }
> +}
> +
> +//just a helper function, can't use it for anything else
> +//finds max numbers on cube axis and returns max values,
> +// also stores the locations of max values in Location
> +template<typename MatType, typename CubeType>
> +MatType StructuredForests<MatType, CubeType>::
> +MaxAndLoc(CubeType& mag, arma::umat& Location)
</pre>
<p>For const correctness<br>
<code>MaxAndLoc(const CubeType &mag, arma::umat& Location) const</code></p>
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