# HistoOrientedGrad.h File Reference

## Classes
class | opentl::modalities::HistoOrientedGrad
| Visual modality: Histogram of Oriented Gradients (HOG) This class implements the HOG on a reference pattern, to be matched to the current image It uses the integral HOG in order to speed up computations for multiple evaluations (e.g. particle filters) on a rectangular bounding box at a given pose. More...
## Namespaces
namespace | opentl
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namespace | opentl::modalities
namespace | opentl::models