bilateral.h

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/*
    This file is part of darktable,
    Copyright (C) 2012-2013 johannes hanika.
    Copyright (C) 2012 Moritz Lipp.
    Copyright (C) 2012-2014, 2016 Tobias Ellinghaus.
    Copyright (C) 2012, 2014, 2016 Ulrich Pegelow.
    Copyright (C) 2015-2016 Roman Lebedev.
    Copyright (C) 2019 Aurélien PIERRE.
    Copyright (C) 2020 Pascal Obry.
    Copyright (C) 2020 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/>.
*/
 
#ifndef DT_PIXEL_BILATERAL_H
#define DT_PIXEL_BILATERAL_H
 
#include <stddef.h> // for size_t
 
typedef struct dt_bilateral_t
{
  size_t size_x, size_y, size_z;
  int width, height;
  int numslices, sliceheight, slicerows; //height--in input image, rows--in grid
  float sigma_s, sigma_r;
  float *buf __attribute__((aligned(64)));
} __attribute__((packed)) dt_bilateral_t;
 
size_t dt_bilateral_memory_use(const int width,      // width of input image
                               const int height,     // height of input image
                               const float sigma_s,  // spatial sigma (blur pixel coords)
                               const float sigma_r); // range sigma (blur luma values)
 
size_t dt_bilateral_memory_use2(const int width,      // width of input image
                                const int height,     // height of input image
                                const float sigma_s,  // spatial sigma (blur pixel coords)
                                const float sigma_r); // range sigma (blur luma values)
 
size_t dt_bilateral_singlebuffer_size(const int width,      // width of input image
                                      const int height,     // height of input image
                                      const float sigma_s,  // spatial sigma (blur pixel coords)
                                      const float sigma_r); // range sigma (blur luma values)
 
size_t dt_bilateral_singlebuffer_size2(const int width,      // width of input image
                                       const int height,     // height of input image
                                       const float sigma_s,  // spatial sigma (blur pixel coords)
                                       const float sigma_r); // range sigma (blur luma values)
 
void dt_bilateral_grid_size(dt_bilateral_t *b, const int width, const int height, const float L_range,
                            float sigma_s, const float sigma_r);
 
dt_bilateral_t *dt_bilateral_init(const int width,      // width of input image
                                  const int height,     // height of input image
                                  const float sigma_s,  // spatial sigma (blur pixel coords)
                                  const float sigma_r); // range sigma (blur luma values)
 
void dt_bilateral_splat(const dt_bilateral_t *b, const float *const in);
 
void dt_bilateral_blur(const dt_bilateral_t *b);
 
void dt_bilateral_slice(const dt_bilateral_t *const b, const float *const in, float *out, const float detail);
 
void dt_bilateral_slice_to_output(const dt_bilateral_t *const b, const float *const in, float *out,
                                  const float detail);
 
void dt_bilateral_free(dt_bilateral_t *b);
 
#endif // DT_PIXEL_BILATERAL_H
 
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