/usr/include/ossim/projection/ossimMeanRadialLensDistortion.h is in libossim-dev 1.7.21-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (C) 2000 ImageLinks Inc.
//
// LGPL
//
// Author: Garrett Potts (gpotts@imagelinks.com)
//
// Description:
//
// MeanRadialLensDistortion
//*******************************************************************
// $Id: ossimMeanRadialLensDistortion.h 9094 2006-06-13 19:12:40Z dburken $
#ifndef ossimMeanRadialLensDistortion_HEADER
#define ossimMeanRadialLensDistortion_HEADER
#include <vector>
#include <ossim/matrix/newmat.h>
#include <ossim/base/ossimDpt.h>
#include <ossim/projection/ossimLensDistortion.h>
class ossimMeanRadialLensDistortion : public ossimLensDistortion
{
public:
ossimMeanRadialLensDistortion()
{
theCoefficients.resize(4);
theCoefficients[0] = 0.0;
theCoefficients[1] = 0.0;
theCoefficients[2] = 0.0;
theCoefficients[3] = 0.0;
}
/*!
* Instantiate a ossimMeanRadialLens with the calibrated data.
* The data consists of the Principal point,
* focal distance, radialDistance measures for the distortion
* deltas, the radial distortion values.
*
* example of construction:
*
* lets say we have the following:
*
* principal point = (.008 , -.001) mm
*
* and
*
* field angle radial distance deltaR (distortion)
*_____________________________________________________________
* 7.5 deg. .004 mm .0202 mm
* 15 deg. .007 mm .0411 mm
* 22.5 deg. .007 mm .0635 mm
* :
* :
* :
*
* then construct the ossimMeanRadialLensDistortion class to construct the
* given focal length and principal point and the middle column as
* the radial distance column vector and the third column as the
* distortion values.
*/
/* ossimMeanRadialLensDistortion(ossimDpt calibratedPrincipalPoint, */
/* const NEWMAT::ColumnVector &radialDistance, */
/* const NEWMAT::ColumnVector &radialDistortion) */
ossimMeanRadialLensDistortion(ossimDpt calibratedPrincipalPoint,
const NEWMAT::ColumnVector &radialDistance,
const NEWMAT::ColumnVector &radialDistortion)
:ossimLensDistortion(calibratedPrincipalPoint)
{
theCoefficients.resize(4);
solveCoefficients(radialDistance, radialDistortion);
}
/*!
* Returns the coefficients (k1, k2, k3, k4) for the deltaR polynomial:
*
* deltaR = k1*r + k2*r^3 + k3*r^5 + k4*r^7
*/
const std::vector<double>& getCoefficients()const{return theCoefficients;}
std::vector<double>& getCoefficients(){return theCoefficients;}
// ossimDpt adjustPoint(const ossimDpt &position)const;
virtual std::ostream& print(std::ostream& out) const
{return out;}
/*!
* dletaR computes how much we should adjust r. The
* return value is the adjustment amount. This method is used
* by adjustPoint.
*/
double deltaR(double r)const;
virtual void distort(const ossimDpt& input, ossimDpt& output)const;
virtual void undistort(const ossimDpt& input, ossimDpt& output)const;
/*!
* solves the coefficients given the radial distances and distortion
* for each distance.
*/
void solveCoefficients(const NEWMAT::ColumnVector &radialDistance,
const NEWMAT::ColumnVector &radialDistortion);
/*!
* solves the coefficients given the radial distances and distortion
* for each distance.
*/
void solveCoefficients(const std::vector<double>& radialDistance,
const std::vector<double>& radialDistortion);
virtual bool saveState(ossimKeywordlist& kwl,
const char* prefix = 0)const;
virtual bool loadState(const ossimKeywordlist& kwl,
const char* prefix = 0);
protected:
std::vector<double> theCoefficients;
TYPE_DATA
};
#endif
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