BasisLists.h

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// -*- lsst-c++ -*-
#ifndef LSST_IP_DIFFIM_BASISSETS_H
#define LSST_IP_DIFFIM_BASISSETS_H

#include "boost/shared_ptr.hpp"

#include "Eigen/Core"

#include "lsst/pex/policy/Policy.h"
#include "lsst/afw/math/Kernel.h"

namespace lsst { 
namespace ip { 
namespace diffim {

    lsst::afw::math::KernelList makeDeltaFunctionBasisList(
        int width,
        int height
        );
    
    boost::shared_ptr<Eigen::MatrixXd> makeRegularizationMatrix(
        lsst::pex::policy::Policy policy
        );

    boost::shared_ptr<Eigen::MatrixXd> makeForwardDifferenceMatrix(
        int width,
        int height,
        std::vector<int> const& orders,
        float borderPenalty,
        bool fitForBackground
        );

    boost::shared_ptr<Eigen::MatrixXd> makeCentralDifferenceMatrix(
        int width,
        int height,
        int stencil,
        float borderPenalty,
        bool fitForBackground
        );

    lsst::afw::math::KernelList renormalizeKernelList(
        lsst::afw::math::KernelList const &kernelListIn
        );

    lsst::afw::math::KernelList makeAlardLuptonBasisList(
        int halfWidth,                
        int nGauss,                   
        std::vector<double> const& sigGauss,   
        std::vector<int>    const& degGauss    
        );

}}} // end of namespace lsst::ip::diffim

#endif