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/* $Id: moses.c,v 1.116 2013/10/15 09:27:38 cgarcia Exp $
*
* This file is part of the MOSES library
* Copyright (C) 2002-2010 European Southern Observatory
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* $Author: cgarcia $
* $Date: 2013/10/15 09:27:38 $
* $Revision: 1.116 $
* $Name: $
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdexcept>
#include <string>
#include <cpl.h>
#include <hdrl.h>
#include "vimos_overscan.h"
#include "ccd_config.h"
#include "statistics.h"
/**
* @brief
* Subtract the overscan from a CCD exposure
*
* @param image Image containing the data to correct
* @param header Header of the image
*
* @return A newly allocated overscan subtracted image
*
*/
mosca::image vimos_preoverscan::subtract_prescan(mosca::image& image,
const mosca::ccd_config& ccd_config)
{
int box_hsize = HDRL_OVERSCAN_FULL_BOX;
//Get number of ports
size_t nports = ccd_config.nports();
//Create a copy where to store the results
cpl_image * image_err = cpl_image_duplicate(image.get_cpl_image_err());
cpl_mask * old_bpm = cpl_image_set_bpm(image_err,
cpl_mask_duplicate(cpl_image_get_bpm(image.get_cpl_image())));
cpl_mask_delete(old_bpm);
hdrl_image * target_image = hdrl_image_create(image.get_cpl_image(), image_err);
cpl_image_delete(image_err);
//Loop on the ports
for(size_t iport = 0; iport < nports; iport++)
{
hdrl_parameter * collapse_method =
hdrl_collapse_median_parameter_create();
mosca::rect_region ps_reg = ccd_config.prescan_region(iport).coord_0to1();
hdrl_parameter * prescan_region = ps_reg.hdrl_param(); //deleted by ps_reg
hdrl_direction correction_direction;
if(ccd_config.prescan_region(iport).length_x() >
ccd_config.prescan_region(iport).length_y())
correction_direction = HDRL_Y_AXIS;
else
correction_direction = HDRL_X_AXIS;
double ron = ccd_config.computed_ron(iport);
hdrl_parameter * prescan_params =
hdrl_overscan_parameter_create(correction_direction,
ron,
box_hsize,
collapse_method,
prescan_region);
hdrl_overscan_compute_result * os_computation =
hdrl_overscan_compute(image.get_cpl_image(), prescan_params);
hdrl_image * os_image =
hdrl_overscan_compute_result_get_correction(os_computation);
m_median_correction =
cpl_image_get_median(hdrl_image_get_image(os_image));
mosca::rect_region por_reg = ccd_config.validpix_region(iport).coord_0to1();
hdrl_parameter * port_region = por_reg.hdrl_param(); //deleted by por_reg
hdrl_overscan_correct_result * os_correction =
hdrl_overscan_correct(target_image, port_region, os_computation);
hdrl_image * os_corrected_ima =
hdrl_overscan_correct_result_get_corrected(os_correction);
hdrl_image * port_image = hdrl_image_extract(os_corrected_ima,
ccd_config.validpix_region(iport).coord_0to1().llx(),
ccd_config.validpix_region(iport).coord_0to1().lly(),
ccd_config.validpix_region(iport).coord_0to1().urx(),
ccd_config.validpix_region(iport).coord_0to1().ury());
hdrl_image_copy(target_image, port_image,
ccd_config.validpix_region(iport).coord_0to1().llx(),
ccd_config.validpix_region(iport).coord_0to1().lly());
hdrl_overscan_compute_result_delete(os_computation);
hdrl_overscan_correct_result_delete(os_correction);
hdrl_image_delete(port_image);
hdrl_parameter_delete(prescan_params);
}
//The rest of the VIMOS pipeline works with float images, so we cast it
mosca::image os_subtracted(
cpl_image_cast(hdrl_image_get_image_const(target_image), CPL_TYPE_FLOAT),
cpl_image_cast(hdrl_image_get_error_const(target_image), CPL_TYPE_FLOAT),
true, mosca::Y_AXIS);
hdrl_image_delete(target_image);
return os_subtracted;
}
//TODO: This is by far not efficient. Too many copies are happening
std::vector<mosca::image> vimos_preoverscan::subtract_prescan
(std::vector<mosca::image>& ima_list, const mosca::ccd_config& ccd_config)
{
int nima = ima_list.size();
std::vector<mosca::image> ima_list_os_sub;
std::vector<double> mean_corr;
for(int ima = 0; ima < nima; ++ima)
{
ima_list_os_sub.push_back(subtract_prescan(ima_list[ima], ccd_config));
mean_corr.push_back(get_median_correction());
}
m_median_correction = mosca::mean(mean_corr.begin(), mean_corr.end());
return ima_list_os_sub;
}
/**
* @brief
* Subtract the overscan from a CCD exposure
*
* @param image Image containing the data to correct
* @param header Header of the image
*
* @return A newly allocated overscan subtracted image
* TODO: Refactor this with subtract_prescan
*/
mosca::image vimos_preoverscan::subtract_overscan(mosca::image& image,
const mosca::ccd_config& ccd_config)
{
int box_hsize = HDRL_OVERSCAN_FULL_BOX;
//Get number of ports
size_t nports = ccd_config.nports();
//Create a copy where to store the results
cpl_image * image_err = cpl_image_duplicate(image.get_cpl_image_err());
cpl_mask * old_bpm = cpl_image_set_bpm(image_err,
cpl_mask_duplicate(cpl_image_get_bpm(image.get_cpl_image())));
cpl_mask_delete(old_bpm);
hdrl_image * target_image = hdrl_image_create(image.get_cpl_image(), image_err);
cpl_image_delete(image_err);
//Loop on the ports
for(size_t iport = 0; iport < nports; iport++)
{
hdrl_parameter * collapse_method =
hdrl_collapse_median_parameter_create();
mosca::rect_region ps_reg = ccd_config.overscan_region(iport).coord_0to1();
hdrl_parameter * overscan_region = ps_reg.hdrl_param(); //deleted by ps_reg
hdrl_direction correction_direction;
if(ccd_config.overscan_region(iport).length_x() >
ccd_config.overscan_region(iport).length_y())
correction_direction = HDRL_Y_AXIS;
else
correction_direction = HDRL_X_AXIS;
double ron = ccd_config.computed_ron(iport);
hdrl_parameter * overscan_params =
hdrl_overscan_parameter_create(correction_direction,
ron,
box_hsize,
collapse_method,
overscan_region);
hdrl_overscan_compute_result * os_computation =
hdrl_overscan_compute(image.get_cpl_image(), overscan_params);
hdrl_image * os_image =
hdrl_overscan_compute_result_get_correction(os_computation);
m_median_correction =
cpl_image_get_median(hdrl_image_get_image(os_image));
mosca::rect_region por_reg = ccd_config.validpix_region(iport).coord_0to1();
hdrl_parameter * port_region = por_reg.hdrl_param(); //deleted by por_reg
hdrl_overscan_correct_result * os_correction =
hdrl_overscan_correct(target_image, port_region, os_computation);
hdrl_image * os_corrected_ima =
hdrl_overscan_correct_result_get_corrected(os_correction);
hdrl_image * port_image = hdrl_image_extract(os_corrected_ima,
ccd_config.validpix_region(iport).coord_0to1().llx(),
ccd_config.validpix_region(iport).coord_0to1().lly(),
ccd_config.validpix_region(iport).coord_0to1().urx(),
ccd_config.validpix_region(iport).coord_0to1().ury());
hdrl_image_copy(target_image, port_image,
ccd_config.validpix_region(iport).coord_0to1().llx(),
ccd_config.validpix_region(iport).coord_0to1().lly());
hdrl_overscan_compute_result_delete(os_computation);
hdrl_overscan_correct_result_delete(os_correction);
hdrl_image_delete(port_image);
hdrl_parameter_delete(overscan_params);
}
//The rest of the VIMOS pipeline works with float images, so we cast it
mosca::image os_subtracted(
cpl_image_cast(hdrl_image_get_image_const(target_image), CPL_TYPE_FLOAT),
cpl_image_cast(hdrl_image_get_error_const(target_image), CPL_TYPE_FLOAT),
true, mosca::Y_AXIS);
hdrl_image_delete(target_image);
return os_subtracted;
}
//TODO: This is by far not efficient. Too many copies are happening
std::vector<mosca::image> vimos_preoverscan::subtract_overscan
(std::vector<mosca::image>& ima_list, const mosca::ccd_config& ccd_config)
{
int nima = ima_list.size();
std::vector<mosca::image> ima_list_os_sub;
std::vector<double> mean_corr;
for(int ima = 0; ima < nima; ++ima)
{
ima_list_os_sub.push_back(subtract_overscan(ima_list[ima], ccd_config));
mean_corr.push_back(get_median_correction());
}
m_median_correction = mosca::mean(mean_corr.begin(), mean_corr.end());
return ima_list_os_sub;
}
mosca::image vimos_preoverscan::trimm_preoverscan(mosca::image& image,
const mosca::ccd_config& ccd_config)
{
mosca::rect_region crop_region = ccd_config.whole_valid_region();
mosca::rect_region crop_region_1 = crop_region.coord_0to1();
if(crop_region_1.is_empty())
throw std::invalid_argument("Region to crop is empty");
mosca::image image_trimmed =
image.trim(crop_region_1.lly(), crop_region_1.llx(),
crop_region_1.ury(), crop_region_1.urx());
return image_trimmed;
}
//TODO: This is by far not efficient. Too many copies are happening
std::vector<mosca::image> vimos_preoverscan::trimm_preoverscan
(std::vector<mosca::image>& ima_list, const mosca::ccd_config& ccd_config)
{
int nima = ima_list.size();
std::vector<mosca::image> ima_list_trimmed;
for(int ima = 0; ima < nima; ++ima)
ima_list_trimmed.push_back(trimm_preoverscan(ima_list[ima], ccd_config));
return ima_list_trimmed;
}
mosca::rect_region vimos_preoverscan::get_wcs_crop_region(const cpl_propertylist * header){
mosca::fiera_config ccd_config(header);
mosca::rect_region crop_region = ccd_config.whole_valid_region();
return crop_region.coord_0to1();
}
void vimos_preoverscan::fix_wcs_trimm(cpl_propertylist * header)
{
mosca::rect_region crop_region_1 = get_wcs_crop_region(header);
if(crop_region_1.is_empty())
throw std::invalid_argument("Cannot fix WCS from overscan trimming");
cpl_propertylist_update_double(header, "CRPIX1",
cpl_propertylist_get_double(header, "CRPIX1") - crop_region_1.llx() + 1);
cpl_propertylist_update_double(header, "CRPIX2",
cpl_propertylist_get_double(header, "CRPIX2") - crop_region_1.lly() + 1);
}
double vimos_preoverscan::get_median_correction() const
{
return m_median_correction;
}
cpl_image * vimos_subtract_prescan(cpl_image * image, cpl_image * image_var,
cpl_propertylist * header)
{
mosca::fiera_config config_ccd(header);
cpl_image * image_err = cpl_image_power_create(image_var, 0.5);
mosca::image target(image, image_err, false, mosca::Y_AXIS);
vimos_preoverscan scan_corr;
mosca::image target_corr =
scan_corr.subtract_prescan(target, config_ccd);
cpl_image_delete(image_err);
return cpl_image_duplicate(target_corr.get_cpl_image());
}
cpl_image * vimos_subtract_overscan(cpl_image * image, cpl_image * image_var,
cpl_propertylist * header)
{
mosca::fiera_config config_ccd(header);
cpl_image * image_err = cpl_image_power_create(image_var, 0.5);
mosca::image target(image, image_err, false, mosca::Y_AXIS);
vimos_preoverscan scan_corr;
mosca::image target_corr =
scan_corr.subtract_overscan(target, config_ccd);
cpl_image_delete(image_err);
return cpl_image_duplicate(target_corr.get_cpl_image());
}
cpl_image * vimos_trimm_preoverscan(cpl_image * image,
cpl_propertylist * header)
{
mosca::fiera_config config_ccd(header);
mosca::image target(image, false, mosca::Y_AXIS);
vimos_preoverscan scan_corr;
mosca::image target_corr =
scan_corr.trimm_preoverscan(target, config_ccd);
return cpl_image_duplicate(target_corr.get_cpl_image());
}
//void fors_trimm_fill_info(cpl_propertylist * header,
// const mosca::ccd_config& ccd_config)
//{
// mosca::rect_region crop_region = ccd_config.whole_valid_region();
// mosca::rect_region crop_region_1 = crop_region.coord_0to1();
//
// cpl_propertylist_append_int(header, "ESO QC TRIMM LLX",
// crop_region_1.llx());
// cpl_propertylist_append_int(header, "ESO QC TRIMM LLY",
// crop_region_1.lly());
// cpl_propertylist_append_int(header, "ESO QC TRIMM URX",
// crop_region_1.urx());
// cpl_propertylist_append_int(header, "ESO QC TRIMM URY",
// crop_region_1.ury());
//}
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