std::vector<float>
ComputeDominantOrientations::
operator()(const ImagePyramid<Vector2f>& pyramid,
const OERegion& extremum,
const Point2i& scale_octave_pair) const
{
const auto& s_index = scale_octave_pair(0);
const auto& o_index = scale_octave_pair(1);
auto x = extremum.x();
auto y = extremum.y();
auto s = pyramid.scale_relative_to_octave(s_index);
return this->operator()(pyramid(s_index, o_index), x, y, s);
}
//! Helper member function.
SIFTDescriptor operator()(const OERegion& f,
const Image<Vector2f>& gradPolar) const
{ return this->operator()(f.x(), f.y(), f.scale(), f.orientation(), gradPolar); }
//! Helper member function.
descriptor_type operator()(const OERegion& f,
const Image<Vector2f>& grad_polar_coords) const
{
return this->operator()(f.x(), f.y(), f.scale(), f.orientation(), grad_polar_coords);
}