noiseprofiles.h

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/*
    This file is part of darktable,
    Copyright (C) 2013 Ben Robbins.
    Copyright (C) 2013 Christian Tellefsen.
    Copyright (C) 2013 Dennis Gnad.
    Copyright (C) 2013 Florian Franzmann.
    Copyright (C) 2013 Jean-Sébastien Pédron.
    Copyright (C) 2013-2014 johannes hanika.
    Copyright (C) 2013 Jon Leighton.
    Copyright (C) 2013 parafin.
    Copyright (C) 2013-2014 Pascal de Bruijn.
    Copyright (C) 2013, 2020 Pascal Obry.
    Copyright (C) 2013 Richard Tollerton.
    Copyright (C) 2013-2016 Tobias Ellinghaus.
    Copyright (C) 2014 Dan Torop.
    Copyright (C) 2014 Daniel Kraus (bovender).
    Copyright (C) 2014 Erik Gustavsson.
    Copyright (C) 2014 Messie1.
    Copyright (C) 2014 Roman Lebedev.
    Copyright (C) 2014 Ulrich Pegelow.
    Copyright (C) 2021 Ralf Brown.
    Copyright (C) 2022 Martin Bařinka.
    
    darktable 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.
    
    darktable 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 darktable.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#pragma once
 
#include "common/image.h"
#include <glib.h>
#include <json-glib/json-glib.h>
 
typedef struct dt_noiseprofile_t
{
  char *name;
  char *maker;
  char *model;
  int iso;
  dt_aligned_pixel_t a; // poissonian part; use 4 aligned instead of 3 elements to aid vectorization
  dt_aligned_pixel_t b; // gaussian part
}
dt_noiseprofile_t;
 
extern const dt_noiseprofile_t dt_noiseprofile_generic;
 
JsonParser *dt_noiseprofile_init(const char *alternative);
 
/*
 * returns the noiseprofiles matching the image's exif data.
 * free with g_list_free_full(..., dt_noiseprofile_free);
 */
GList *dt_noiseprofile_get_matching(const dt_image_t *cimg);
 
void dt_noiseprofile_free(gpointer data);
 
/*
 * interpolate values from p1 and p2 into out.
 */
void dt_noiseprofile_interpolate(
  const dt_noiseprofile_t *const p1,  // the smaller iso
  const dt_noiseprofile_t *const p2,  // the larger iso (can't be == iso1)
  dt_noiseprofile_t *out);            // has iso initialized
 
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