OptimizerF.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_CV_SYNTHESIS_OPTIMIZER_F_H
#define META_OCEAN_CV_SYNTHESIS_OPTIMIZER_F_H
 
#include "ocean/cv/synthesis/Synthesis.h"
#include "ocean/cv/synthesis/LayerF.h"
#include "ocean/cv/synthesis/Optimizer.h"
 
namespace Ocean
{
 
namespace CV
{
 
namespace Synthesis
{
 
/**
 * This class is the base class for all optimizers that use a mapping with float accuracy.
 * @ingroup cvsynthesis
 */
class OCEAN_CV_SYNTHESIS_EXPORT OptimizerF : virtual public Optimizer
{
    public:
 
        /**
         * Calculates the search radii for the mapping optimization.
         * @param radii Number of radii to create, with range [1, infinity)
         * @param width The width of the frame in pixel, with range [1, infinity)
         * @param height The height of the frame in pixel, with range [1, infinity)
         * @return Resulting search radii
         */
        static inline std::vector<Scalar> calculateSearchRadii(const unsigned int radii, const unsigned int width, const unsigned int height);
 
    protected:
 
        /**
         * Creates a new optimizer object.
         * @param layer The layer that has to be optimized
         */
        inline OptimizerF(LayerF& layer);
 
    private:
 
        /// Specialized layer reference.
        LayerF& layerF_;
};
 
inline OptimizerF::OptimizerF(LayerF& layer) :
    Operator(),
    Optimizer(layer),
    layerF_(layer)
{
    OCEAN_SUPPRESS_UNUSED_WARNING(layerF_);
}
 
inline std::vector<Scalar> OptimizerF::calculateSearchRadii(const unsigned int radii, const unsigned int width, const unsigned int height)
{
    ocean_assert(radii != 0u);
    ocean_assert(width != 0u && height != 0u);
 
    std::vector<Scalar> result(radii);
 
    const Scalar maxWidthHeight = Scalar(max(width, height));
 
    for (unsigned int n = 0; n < radii; ++n)
    {
        result[n] = max(Scalar(2), Scalar(Scalar(maxWidthHeight) - Scalar(maxWidthHeight - 1u) * Scalar(n) / Scalar(radii)) * Scalar(0.5));
    }
 
    return result;
}
 
}
 
}
 
}
 
#endif // META_OCEAN_CV_SYNTHESIS_OPTIMIZER_F_H