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3d/nfg.hh
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1/* -*- mia-c++ -*-
2 *
3 * This file is part of MIA - a toolbox for medical image analysis
4 * Copyright (c) Leipzig, Madrid 1999-2017 Gert Wollny
5 *
6 * MIA is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with MIA; if not, see <http://www.gnu.org/licenses/>.
18 *
19 */
20
21#include <mia/3d/image.hh>
22
23/*
24 This code implements the functions needed to support the NFG cost function.
25
26
27*/
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47EXPORT_3D float get_jump_level(const C3DImage& image);
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56EXPORT_3D float get_jump_level(const C3DImage& image, float noise_level);
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67EXPORT_3D C3DFVectorfield get_nfg_n(const C3DImage& image, float noise_level);
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78EXPORT_3D C3DFVectorfield get_nfg_j(const C3DImage& image, float jump_level2);
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a 3D field of floating point single accuracy 3D vectors
The generic base type of a 3D image.
Definition: 3d/image.hh:47
#define EXPORT_3D
Definition: defines3d.hh:45
#define NS_MIA_BEGIN
conveniance define to start the mia namespace
Definition: defines.hh:33
#define NS_MIA_END
conveniance define to end the mia namespace
Definition: defines.hh:36
EXPORT_3D float get_noise_level(const C3DImage &image)
evaluate an approximation of the noise level of an image
EXPORT_3D C3DFVectorfield get_nfg_n(const C3DImage &image, float noise_level)
evaluate normalized gradiend field of an image
EXPORT_3D C3DFVectorfield get_nfg_j(const C3DImage &image, float jump_level2)
evaluate normalized gradiend field of an image
EXPORT_3D C3DFVectorfield get_nfg(const C3DImage &image)
evaluate normalized gradiend field of an image
EXPORT_3D float get_jump_level(const C3DImage &image)
evaluate the noise-vs-gradient jump level for the normalized gradient field evaluation