3d/nfg.hh
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/* -*- mia-c++ -*-
*
* This file is part of MIA - a toolbox for medical image analysis
* Copyright (c) Leipzig, Madrid 1999-2017 Gert Wollny
*
* MIA 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.
*
* 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 MIA; if not, see <http://www.gnu.org/licenses/>.
*
*/
#include <mia/3d/image.hh>
/*
This code implements the functions needed to support the NFG cost function.
*/
NS_MIA_BEGIN
EXPORT_3D float get_noise_level(const C3DImage& image);
EXPORT_3D float get_jump_level(const C3DImage& image);
EXPORT_3D float get_jump_level(const C3DImage& image, float noise_level);
EXPORT_3D C3DFVectorfield get_nfg_n(const C3DImage& image, float noise_level);
EXPORT_3D C3DFVectorfield get_nfg_j(const C3DImage& image, float jump_level2);
EXPORT_3D C3DFVectorfield get_nfg(const C3DImage& image);
NS_MIA_END
image.hh
C3DFVectorfield
a 3D field of floating point single accuracy 3D vectors
Definition 3d/vectorfield.hh:103
C3DImage
The generic base type of a 3D image.
Definition 3d/image.hh:47
EXPORT_3D
#define EXPORT_3D
Definition defines3d.hh:45
NS_MIA_BEGIN
#define NS_MIA_BEGIN
conveniance define to start the mia namespace
Definition defines.hh:33
NS_MIA_END
#define NS_MIA_END
conveniance define to end the mia namespace
Definition defines.hh:36
get_noise_level
EXPORT_3D float get_noise_level(const C3DImage &image)
evaluate an approximation of the noise level of an image
get_nfg_n
EXPORT_3D C3DFVectorfield get_nfg_n(const C3DImage &image, float noise_level)
evaluate normalized gradiend field of an image
get_nfg_j
EXPORT_3D C3DFVectorfield get_nfg_j(const C3DImage &image, float jump_level2)
evaluate normalized gradiend field of an image
get_nfg
EXPORT_3D C3DFVectorfield get_nfg(const C3DImage &image)
evaluate normalized gradiend field of an image
get_jump_level
EXPORT_3D float get_jump_level(const C3DImage &image)
evaluate the noise-vs-gradient jump level for the normalized gradient field evaluation