lsst::ip.isr::LookupTableReplace< ImageT > Class Template Reference

#include <isr.h>

Public Types
typedef lsst::afw::image::MaskedImage < ImageT >::x_iterator	x_iterator
typedef lsst::afw::image::MaskedImage < ImageT >::Pixel	PixelT

Public Member Functions
	LookupTableReplace (std::vector< double > table)
virtual	~LookupTableReplace ()
void	apply (lsst::afw::image::MaskedImage< ImageT > &image, float gain=1.0) const
std::vector< double >	getTable () const

Private Attributes
std::vector< double >	_table
int	_max

Detailed Description

template<typename ImageT>
class lsst::ip.isr::LookupTableReplace< ImageT >

Linearization lookup table with replacement

Definition at line 144 of file isr.h.

Member Typedef Documentation

template<typename ImageT >

typedef lsst::afw::image::MaskedImage<ImageT>::Pixel lsst::ip.isr::LookupTableReplace< ImageT >::PixelT

Definition at line 147 of file isr.h.

template<typename ImageT >

typedef lsst::afw::image::MaskedImage<ImageT>::x_iterator lsst::ip.isr::LookupTableReplace< ImageT >::x_iterator

Definition at line 146 of file isr.h.

Constructor & Destructor Documentation

template<typename ImageT >

lsst::ip.isr::LookupTableReplace< ImageT >::LookupTableReplace ( std::vector< double >  table )

inline

Definition at line 149 of file isr.h.

                                                    : 
            _table(table), _max(table.size()) {};

template<typename ImageT >

virtual lsst::ip.isr::LookupTableReplace< ImageT >::~LookupTableReplace ( )

inlinevirtual

Definition at line 151 of file isr.h.

{};

Member Function Documentation

template<typename ImageT >

void lsst::ip.isr::LookupTableReplace< ImageT >::apply	(	lsst::afw::image::MaskedImage< ImageT > &	image,
		float	gain = 1.0
	)		const

Definition at line 35 of file Isr.cc.

                                                                                           {
    double igain = 1.0 / gain;
    int nPixTooHigh = 0;
    int nPixTooLow = 0;
    for (int y = 0; y != image.getHeight(); ++y) {
        for (x_iterator ptr = image.row_begin(y), end = image.row_end(y); ptr != end; ++ptr) {
            int ind = static_cast<int>(ptr.image() + 0.5);  // Rounded pixel value
            if (ind < 0) {
                ind = 0;
                ++nPixTooLow;
            } else if (ind >= _max) {
                ind = _max - 1;
                ++nPixTooHigh;
            }
            PixelT p = PixelT(_table[ind],  (*ptr).mask(), _table[ind] * igain);
            *ptr = p;
        }
    }
    if ((nPixTooHigh > 0) || (nPixTooLow > 0)) {
        // log message
        pex::logging::TTrace<1>("lsst.ip.isr.LookupTableReplace.apply", 
            "Data truncated; %d pixels were < 0; %d pixels were >= %d", nPixTooLow, nPixTooHigh, _max);
    }
}

template<typename ImageT >

std::vector<double> lsst::ip.isr::LookupTableReplace< ImageT >::getTable ( ) const

inline

Definition at line 156 of file isr.h.

{ return _table; }

Member Data Documentation

template<typename ImageT >

int lsst::ip.isr::LookupTableReplace< ImageT >::_max

private

Definition at line 159 of file isr.h.

template<typename ImageT >

std::vector<double> lsst::ip.isr::LookupTableReplace< ImageT >::_table

private

Definition at line 158 of file isr.h.

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The documentation for this class was generated from the following files:

• /lsst/home/lsstsw/stack/Linux64/ip_isr/master-g4432ae2e89+36/include/lsst/ip/isr.h
• /lsst/home/lsstsw/stack/Linux64/ip_isr/master-g4432ae2e89+36/src/Isr.cc