185 lines
6.8 KiB
C++
185 lines
6.8 KiB
C++
/*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_STITCHING_BLENDERS_HPP
|
|
#define OPENCV_STITCHING_BLENDERS_HPP
|
|
|
|
#if defined(NO)
|
|
# warning Detected Apple 'NO' macro definition, it can cause build conflicts. Please, include this header before any Apple headers.
|
|
#endif
|
|
|
|
#include "opencv2/core.hpp"
|
|
#include "opencv2/core/cuda.hpp"
|
|
|
|
namespace cv {
|
|
namespace detail {
|
|
|
|
//! @addtogroup stitching_blend
|
|
//! @{
|
|
|
|
/** @brief Base class for all blenders.
|
|
|
|
Simple blender which puts one image over another
|
|
*/
|
|
class CV_EXPORTS_W Blender
|
|
{
|
|
public:
|
|
virtual ~Blender() {}
|
|
|
|
enum { NO, FEATHER, MULTI_BAND };
|
|
CV_WRAP static Ptr<Blender> createDefault(int type, bool try_gpu = false);
|
|
|
|
/** @brief Prepares the blender for blending.
|
|
|
|
@param corners Source images top-left corners
|
|
@param sizes Source image sizes
|
|
*/
|
|
CV_WRAP virtual void prepare(const std::vector<Point> &corners, const std::vector<Size> &sizes);
|
|
/** @overload */
|
|
CV_WRAP virtual void prepare(Rect dst_roi);
|
|
/** @brief Processes the image.
|
|
|
|
@param img Source image
|
|
@param mask Source image mask
|
|
@param tl Source image top-left corners
|
|
*/
|
|
CV_WRAP virtual void feed(InputArray img, InputArray mask, Point tl);
|
|
/** @brief Blends and returns the final pano.
|
|
|
|
@param dst Final pano
|
|
@param dst_mask Final pano mask
|
|
*/
|
|
CV_WRAP virtual void blend(CV_IN_OUT InputOutputArray dst,CV_IN_OUT InputOutputArray dst_mask);
|
|
|
|
protected:
|
|
UMat dst_, dst_mask_;
|
|
Rect dst_roi_;
|
|
};
|
|
|
|
/** @brief Simple blender which mixes images at its borders.
|
|
*/
|
|
class CV_EXPORTS_W FeatherBlender : public Blender
|
|
{
|
|
public:
|
|
CV_WRAP FeatherBlender(float sharpness = 0.02f);
|
|
|
|
CV_WRAP float sharpness() const { return sharpness_; }
|
|
CV_WRAP void setSharpness(float val) { sharpness_ = val; }
|
|
|
|
CV_WRAP void prepare(Rect dst_roi) CV_OVERRIDE;
|
|
CV_WRAP void feed(InputArray img, InputArray mask, Point tl) CV_OVERRIDE;
|
|
CV_WRAP void blend(InputOutputArray dst, InputOutputArray dst_mask) CV_OVERRIDE;
|
|
|
|
//! Creates weight maps for fixed set of source images by their masks and top-left corners.
|
|
//! Final image can be obtained by simple weighting of the source images.
|
|
CV_WRAP Rect createWeightMaps(const std::vector<UMat> &masks, const std::vector<Point> &corners,
|
|
CV_IN_OUT std::vector<UMat> &weight_maps);
|
|
|
|
private:
|
|
float sharpness_;
|
|
UMat weight_map_;
|
|
UMat dst_weight_map_;
|
|
};
|
|
|
|
inline FeatherBlender::FeatherBlender(float _sharpness) { setSharpness(_sharpness); }
|
|
|
|
/** @brief Blender which uses multi-band blending algorithm (see @cite BA83).
|
|
*/
|
|
class CV_EXPORTS_W MultiBandBlender : public Blender
|
|
{
|
|
public:
|
|
CV_WRAP MultiBandBlender(int try_gpu = false, int num_bands = 5, int weight_type = CV_32F);
|
|
|
|
CV_WRAP int numBands() const { return actual_num_bands_; }
|
|
CV_WRAP void setNumBands(int val) { actual_num_bands_ = val; }
|
|
|
|
CV_WRAP void prepare(Rect dst_roi) CV_OVERRIDE;
|
|
CV_WRAP void feed(InputArray img, InputArray mask, Point tl) CV_OVERRIDE;
|
|
CV_WRAP void blend(CV_IN_OUT InputOutputArray dst, CV_IN_OUT InputOutputArray dst_mask) CV_OVERRIDE;
|
|
|
|
private:
|
|
int actual_num_bands_, num_bands_;
|
|
std::vector<UMat> dst_pyr_laplace_;
|
|
std::vector<UMat> dst_band_weights_;
|
|
Rect dst_roi_final_;
|
|
bool can_use_gpu_;
|
|
int weight_type_; //CV_32F or CV_16S
|
|
#if defined(HAVE_OPENCV_CUDAARITHM) && defined(HAVE_OPENCV_CUDAWARPING)
|
|
std::vector<cuda::GpuMat> gpu_dst_pyr_laplace_;
|
|
std::vector<cuda::GpuMat> gpu_dst_band_weights_;
|
|
std::vector<Point> gpu_tl_points_;
|
|
std::vector<cuda::GpuMat> gpu_imgs_with_border_;
|
|
std::vector<std::vector<cuda::GpuMat> > gpu_weight_pyr_gauss_vec_;
|
|
std::vector<std::vector<cuda::GpuMat> > gpu_src_pyr_laplace_vec_;
|
|
std::vector<std::vector<cuda::GpuMat> > gpu_ups_;
|
|
cuda::GpuMat gpu_dst_mask_;
|
|
cuda::GpuMat gpu_mask_;
|
|
cuda::GpuMat gpu_img_;
|
|
cuda::GpuMat gpu_weight_map_;
|
|
cuda::GpuMat gpu_add_mask_;
|
|
int gpu_feed_idx_;
|
|
bool gpu_initialized_;
|
|
#endif
|
|
};
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
// Auxiliary functions
|
|
|
|
void CV_EXPORTS_W normalizeUsingWeightMap(InputArray weight, CV_IN_OUT InputOutputArray src);
|
|
|
|
void CV_EXPORTS_W createWeightMap(InputArray mask, float sharpness, CV_IN_OUT InputOutputArray weight);
|
|
|
|
void CV_EXPORTS_W createLaplacePyr(InputArray img, int num_levels, CV_IN_OUT std::vector<UMat>& pyr);
|
|
void CV_EXPORTS_W createLaplacePyrGpu(InputArray img, int num_levels, CV_IN_OUT std::vector<UMat>& pyr);
|
|
|
|
// Restores source image
|
|
void CV_EXPORTS_W restoreImageFromLaplacePyr(CV_IN_OUT std::vector<UMat>& pyr);
|
|
void CV_EXPORTS_W restoreImageFromLaplacePyrGpu(CV_IN_OUT std::vector<UMat>& pyr);
|
|
|
|
//! @}
|
|
|
|
} // namespace detail
|
|
} // namespace cv
|
|
|
|
#endif // OPENCV_STITCHING_BLENDERS_HPP
|