102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
// Copyright 2003, 2004 David Hilvert <dhilvert@auricle.dyndns.org>,
|
|
// <dhilvert@ugcs.caltech.edu>
|
|
|
|
/* This file is part of the Anti-Lamenessing Engine.
|
|
|
|
The Anti-Lamenessing Engine is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
The Anti-Lamenessing Engine is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with the Anti-Lamenessing Engine; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __psf_scalar_mult_h__
|
|
#define __psf_scalar_mult_h__
|
|
|
|
#include "../../point.h"
|
|
#include "psf.h"
|
|
|
|
/*
|
|
* Point-spread function module.
|
|
*
|
|
* This module implements the scalar_mult (f1 * f2) of point-spread functions f1 and
|
|
* f2.
|
|
*/
|
|
|
|
class scalar_mult : public psf {
|
|
ale_pos _radius;
|
|
psf *f;
|
|
ale_real scalar;
|
|
ale_real _min_i, _max_i, _min_j, _max_j;
|
|
|
|
public:
|
|
/*
|
|
* The following four functions indicate filter boundaries. Filter
|
|
* support may include everything up to and including the boundaries
|
|
* specified here.
|
|
*/
|
|
ale_real min_i() const { return _min_i; }
|
|
ale_real max_i() const { return _max_i; }
|
|
ale_real min_j() const { return _min_j; }
|
|
ale_real max_j() const { return _max_j; }
|
|
|
|
/*
|
|
* Get the number of varieties supported by this PSF. These usually
|
|
* correspond to different points in the sensor array.
|
|
*/
|
|
virtual unsigned int varieties() {
|
|
return f->varieties();
|
|
}
|
|
|
|
/*
|
|
* Select the variety appropriate for a given position in the sensor
|
|
* array.
|
|
*/
|
|
virtual unsigned int select(unsigned int i, unsigned int j) {
|
|
return f->select(i, j);
|
|
}
|
|
|
|
/*
|
|
* Response function
|
|
*
|
|
* Get the response to the rectangle bounded by (top, bot, lef, rig).
|
|
* This function must correctly handle points which fall outside of the
|
|
* filter support. The variety of the responding pixel is provided, in
|
|
* case response is not uniform for all pixels (e.g. some sensor arrays
|
|
* stagger red, green, and blue sensors).
|
|
*/
|
|
psf_result operator()(ale_real top, ale_real bot, ale_real lef, ale_real rig,
|
|
unsigned int variety) const {
|
|
psf_result result;
|
|
psf_result r;
|
|
|
|
r = (*f)(top, bot, lef, rig, variety);
|
|
|
|
for (int k1 = 0; k1 < 3; k1++)
|
|
for (int k2 = 0; k2 < 3; k2++)
|
|
result.set_matrix(k1, k2, scalar * r.get_matrix(k1, k2));
|
|
|
|
return result;
|
|
}
|
|
|
|
scalar_mult(ale_real s, psf *f) {
|
|
this->scalar = s;
|
|
this->f = f;
|
|
|
|
_min_i = f->min_i();
|
|
_min_j = f->min_j();
|
|
_max_i = f->max_i();
|
|
_max_j = f->max_j();
|
|
}
|
|
};
|
|
|
|
#endif
|