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Diffstat (limited to 'source/blender/freestyle/intern/image/ImagePyramid.h')
-rwxr-xr-x | source/blender/freestyle/intern/image/ImagePyramid.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/source/blender/freestyle/intern/image/ImagePyramid.h b/source/blender/freestyle/intern/image/ImagePyramid.h new file mode 100755 index 00000000000..9e326757f02 --- /dev/null +++ b/source/blender/freestyle/intern/image/ImagePyramid.h @@ -0,0 +1,92 @@ +// +// Filename : ImagePyramid.h +// Author(s) : Stephane Grabli +// Purpose : Class to represent a pyramid of images +// Date of creation : 25/12/2003 +// +/////////////////////////////////////////////////////////////////////////////// + + +// +// Copyright (C) : Please refer to the COPYRIGHT file distributed +// with this source distribution. +// +// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +/////////////////////////////////////////////////////////////////////////////// + +#ifndef IMAGEPYRAMID_H +# define IMAGEPYRAMID_H + +#include "../system/FreestyleConfig.h" +#include <vector> + +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.f); + GaussianPyramid(GrayImage* level0, unsigned nbLevels, float iSigma=1.f); + 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 |