/*M/////////////////////////////////////////////////////////////////////////////////////// // // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. // // By downloading, copying, installing or using the software you agree to this license. // If you do not agree to this license, do not download, install, // copy or use the software. // // // License Agreement // For Open Source Computer Vision Library // // Copyright (C) 2000-2008, Intel Corporation, all rights reserved. // Copyright (C) 2009, Willow Garage Inc., all rights reserved. // Third party copyrights are property of their respective owners. // // Redistribution and use in source and binary forms, with or without modification, // are permitted provided that the following conditions are met: // // * Redistribution's of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // // * Redistribution's in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // // * The name of the copyright holders may not be used to endorse or promote products // derived from this software without specific prior written permission. // // This software is provided by the copyright holders and contributors "as is" and // any express or implied warranties, including, but not limited to, the implied // warranties of merchantability and fitness for a particular purpose are disclaimed. // In no event shall the Intel Corporation or contributors be liable for any direct, // indirect, incidental, special, exemplary, or consequential damages // (including, but not limited to, procurement of substitute goods or services; // loss of use, data, or profits; or business interruption) however caused // and on any theory of liability, whether in contract, strict liability, // or tort (including negligence or otherwise) arising in any way out of // the use of this software, even if advised of the possibility of such damage. // //M*/ #ifndef __OPENCV_BLENDERS_HPP__ #define __OPENCV_BLENDERS_HPP__ #include "precomp.hpp" // Simple blender which puts one image over another class Blender { public: enum { NO, FEATHER, MULTI_BAND }; static cv::Ptr createDefault(int type); void prepare(const std::vector &corners, const std::vector &sizes); virtual void prepare(cv::Rect dst_roi); virtual void feed(const cv::Mat &img, const cv::Mat &mask, cv::Point tl); virtual void blend(cv::Mat &dst, cv::Mat &dst_mask); protected: cv::Mat dst_, dst_mask_; cv::Rect dst_roi_; }; class FeatherBlender : public Blender { public: FeatherBlender(float sharpness = 0.02f) { setSharpness(sharpness); } float sharpness() const { return sharpness_; } void setSharpness(float val) { sharpness_ = val; } void prepare(cv::Rect dst_roi); void feed(const cv::Mat &img, const cv::Mat &mask, cv::Point tl); void blend(cv::Mat &dst, cv::Mat &dst_mask); private: float sharpness_; cv::Mat weight_map_; cv::Mat dst_weight_map_; }; class MultiBandBlender : public Blender { public: MultiBandBlender(int num_bands = 5) { setNumBands(num_bands); } int numBands() const { return num_bands_; } void setNumBands(int val) { num_bands_ = val; } void prepare(cv::Rect dst_roi); void feed(const cv::Mat &img, const cv::Mat &mask, cv::Point tl); void blend(cv::Mat &dst, cv::Mat &dst_mask); private: int num_bands_; std::vector dst_pyr_laplace_; std::vector dst_band_weights_; }; ////////////////////////////////////////////////////////////////////////////// // Auxiliary functions cv::Rect resultRoi(const std::vector &corners, const std::vector &sizes); void normalize(const cv::Mat& weight, cv::Mat& src); void createWeightMap(const cv::Mat& mask, float sharpness, cv::Mat& weight); void createLaplacePyr(const std::vector& pyr_gauss, std::vector& pyr_laplace); // Restores source image in-place. Result will be stored in pyr[0]. void restoreImageFromLaplacePyr(std::vector& pyr); #endif // __OPENCV_BLENDERS_HPP__