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Diffstat (limited to 'source/blender/freestyle/intern/image/ImagePyramid.h')
| -rw-r--r-- | source/blender/freestyle/intern/image/ImagePyramid.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/image/ImagePyramid.h b/source/blender/freestyle/intern/image/ImagePyramid.h new file mode 100644 index 00000000000..4bab663318e --- /dev/null +++ b/source/blender/freestyle/intern/image/ImagePyramid.h @@ -0,0 +1,116 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * 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 Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2010 Blender Foundation. + * All rights reserved. + * + * The Original Code is: all of this file. + * + * Contributor(s): none yet. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#ifndef __IMAGEPYRAMID_H__ +#define __IMAGEPYRAMID_H__ + +/** \file blender/freestyle/intern/image/ImagePyramid.h + * \ingroup freestyle + * \brief Class to represent a pyramid of images + * \author Stephane Grabli + * \date 25/12/2003 + */ + +#include <vector> + +#include "../system/FreestyleConfig.h" + +class GrayImage; + +class LIB_IMAGE_EXPORT ImagePyramid +{ +protected: + std::vector<GrayImage*> _levels; + +public: + ImagePyramid(){} + ImagePyramid(const ImagePyramid& iBrother); + //ImagePyramid(const GrayImage& level0, unsigned nbLevels); + virtual ~ImagePyramid(); + + /*! Builds the pyramid. + * must be overloaded by inherited classes. + * if nbLevels==0, the complete pyramid is built + */ + virtual void BuildPyramid(const GrayImage& level0, unsigned nbLevels) = 0; + + /*! Builds a pyramid without copying the base level */ + virtual void BuildPyramid(GrayImage* level0, unsigned nbLevels) = 0; + + virtual GrayImage * getLevel(int l); + /*! Returns the pixel x,y using bilinear interpolation. + * \param x + * the abscissa specified in the finest level coordinate system + * \param y + * the ordinate specified in the finest level coordinate system + * \param level + * the level from which we want the pixel to be evaluated + */ + virtual float pixel(int x, int y, int level=0); + + /*! Returns the width of the level-th level image */ + virtual int width(int level=0); + + /*! Returns the height of the level-th level image */ + virtual int height(int level=0); + + /*! Returns the number of levels in the pyramid */ + inline int getNumberOfLevels() const + { + return _levels.size(); + } +}; + +class LIB_IMAGE_EXPORT GaussianPyramid : public ImagePyramid +{ +protected: + float _sigma; + +public: + GaussianPyramid(float iSigma=1.f) : ImagePyramid() + { + _sigma = iSigma; + } + + GaussianPyramid(const GrayImage& level0, unsigned nbLevels, float iSigma=1.0f); + GaussianPyramid(GrayImage* level0, unsigned nbLevels, float iSigma=1.0f); + GaussianPyramid(const GaussianPyramid& iBrother); + virtual ~GaussianPyramid() {} + + virtual void BuildPyramid(const GrayImage& level0, unsigned nbLevels); + virtual void BuildPyramid(GrayImage* level0, unsigned nbLevels); + + /* accessors */ + inline float getSigma() const + { + return _sigma; + } + + /* modifiers */ +}; + +#endif // __IMAGEPYRAMID_H__ |