09c2d08c
 Hu Chunming
arm交付版
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef OPENCV_ML_INL_HPP
#define OPENCV_ML_INL_HPP
namespace cv { namespace ml {
// declared in ml.hpp
template<class SimulatedAnnealingSolverSystem>
int simulatedAnnealingSolver(SimulatedAnnealingSolverSystem& solverSystem,
double initialTemperature, double finalTemperature, double coolingRatio,
size_t iterationsPerStep,
CV_OUT double* lastTemperature,
cv::RNG& rngEnergy
)
{
CV_Assert(finalTemperature > 0);
CV_Assert(initialTemperature > finalTemperature);
CV_Assert(iterationsPerStep > 0);
CV_Assert(coolingRatio < 1.0f);
double Ti = initialTemperature;
double previousEnergy = solverSystem.energy();
int exchange = 0;
while (Ti > finalTemperature)
{
for (size_t i = 0; i < iterationsPerStep; i++)
{
solverSystem.changeState();
double newEnergy = solverSystem.energy();
if (newEnergy < previousEnergy)
{
previousEnergy = newEnergy;
exchange++;
}
else
{
double r = rngEnergy.uniform(0.0, 1.0);
if (r < std::exp(-(newEnergy - previousEnergy) / Ti))
{
previousEnergy = newEnergy;
exchange++;
}
else
{
solverSystem.reverseState();
}
}
}
Ti *= coolingRatio;
}
if (lastTemperature)
*lastTemperature = Ti;
return exchange;
}
}} //namespace
#endif // OPENCV_ML_INL_HPP
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