neglogplusone.cpp
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright 2012 The MITRE Corporation *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <openbr/plugins/openbr_internal.h>
namespace br
{
/*!
* \ingroup distances
* \brief Returns -log(distance(a,b)+1)
* \author Josh Klontz \cite jklontz
*/
class NegativeLogPlusOneDistance : public UntrainableDistance
{
Q_OBJECT
Q_PROPERTY(br::Distance* distance READ get_distance WRITE set_distance RESET reset_distance STORED false)
BR_PROPERTY(br::Distance*, distance, NULL)
void train(const TemplateList &src)
{
distance->train(src);
}
float compare(const Template &a, const Template &b) const
{
return -log(distance->compare(a,b)+1);
}
void store(QDataStream &stream) const
{
distance->store(stream);
}
void load(QDataStream &stream)
{
distance->load(stream);
}
};
BR_REGISTER(Distance, NegativeLogPlusOneDistance)
} // namespace br
#include "distance/neglogplusone.moc"