mirror of
https://github.com/opencv/opencv.git
synced 2024-11-29 13:47:32 +08:00
230 lines
8.7 KiB
C++
230 lines
8.7 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*/
|
|
#include "warpers.hpp"
|
|
|
|
using namespace std;
|
|
using namespace cv;
|
|
|
|
Ptr<Warper> Warper::createByCameraFocal(float focal, int type, bool try_gpu)
|
|
{
|
|
bool can_use_gpu = try_gpu && gpu::getCudaEnabledDeviceCount();
|
|
if (type == PLANE)
|
|
return !can_use_gpu ? new PlaneWarper(focal) : new PlaneWarperGpu(focal);
|
|
if (type == CYLINDRICAL)
|
|
return !can_use_gpu ? new CylindricalWarper(focal) : new CylindricalWarperGpu(focal);
|
|
if (type == SPHERICAL)
|
|
return !can_use_gpu ? new SphericalWarper(focal) : new SphericalWarperGpu(focal);
|
|
CV_Error(CV_StsBadArg, "unsupported warping type");
|
|
return NULL;
|
|
}
|
|
|
|
|
|
void ProjectorBase::setTransformation(const Mat &R)
|
|
{
|
|
CV_Assert(R.size() == Size(3, 3));
|
|
CV_Assert(R.type() == CV_32F);
|
|
r[0] = R.at<float>(0, 0); r[1] = R.at<float>(0, 1); r[2] = R.at<float>(0, 2);
|
|
r[3] = R.at<float>(1, 0); r[4] = R.at<float>(1, 1); r[5] = R.at<float>(1, 2);
|
|
r[6] = R.at<float>(2, 0); r[7] = R.at<float>(2, 1); r[8] = R.at<float>(2, 2);
|
|
|
|
Mat Rinv = R.inv();
|
|
rinv[0] = Rinv.at<float>(0, 0); rinv[1] = Rinv.at<float>(0, 1); rinv[2] = Rinv.at<float>(0, 2);
|
|
rinv[3] = Rinv.at<float>(1, 0); rinv[4] = Rinv.at<float>(1, 1); rinv[5] = Rinv.at<float>(1, 2);
|
|
rinv[6] = Rinv.at<float>(2, 0); rinv[7] = Rinv.at<float>(2, 1); rinv[8] = Rinv.at<float>(2, 2);
|
|
}
|
|
|
|
|
|
void PlaneWarper::detectResultRoi(Point &dst_tl, Point &dst_br)
|
|
{
|
|
float tl_uf = numeric_limits<float>::max();
|
|
float tl_vf = numeric_limits<float>::max();
|
|
float br_uf = -numeric_limits<float>::max();
|
|
float br_vf = -numeric_limits<float>::max();
|
|
|
|
float u, v;
|
|
|
|
projector_.mapForward(0, 0, u, v);
|
|
tl_uf = min(tl_uf, u); tl_vf = min(tl_vf, v);
|
|
br_uf = max(br_uf, u); br_vf = max(br_vf, v);
|
|
|
|
projector_.mapForward(0, static_cast<float>(src_size_.height - 1), u, v);
|
|
tl_uf = min(tl_uf, u); tl_vf = min(tl_vf, v);
|
|
br_uf = max(br_uf, u); br_vf = max(br_vf, v);
|
|
|
|
projector_.mapForward(static_cast<float>(src_size_.width - 1), 0, u, v);
|
|
tl_uf = min(tl_uf, u); tl_vf = min(tl_vf, v);
|
|
br_uf = max(br_uf, u); br_vf = max(br_vf, v);
|
|
|
|
projector_.mapForward(static_cast<float>(src_size_.width - 1), static_cast<float>(src_size_.height - 1), u, v);
|
|
tl_uf = min(tl_uf, u); tl_vf = min(tl_vf, v);
|
|
br_uf = max(br_uf, u); br_vf = max(br_vf, v);
|
|
|
|
dst_tl.x = static_cast<int>(tl_uf);
|
|
dst_tl.y = static_cast<int>(tl_vf);
|
|
dst_br.x = static_cast<int>(br_uf);
|
|
dst_br.y = static_cast<int>(br_vf);
|
|
}
|
|
|
|
|
|
Point PlaneWarperGpu::warp(const Mat &src, float focal, const cv::Mat &R, cv::Mat &dst, int interp_mode, int border_mode)
|
|
{
|
|
src_size_ = src.size();
|
|
projector_.size = src.size();
|
|
projector_.focal = focal;
|
|
projector_.setTransformation(R);
|
|
|
|
cv::Point dst_tl, dst_br;
|
|
detectResultRoi(dst_tl, dst_br);
|
|
|
|
gpu::buildWarpPlaneMaps(src.size(), Rect(dst_tl, Point(dst_br.x+1, dst_br.y+1)),
|
|
R, focal, projector_.scale, projector_.plane_dist, d_xmap_, d_ymap_);
|
|
|
|
gpu::ensureSizeIsEnough(src.size(), src.type(), d_src_);
|
|
d_src_.upload(src);
|
|
|
|
gpu::ensureSizeIsEnough(dst_br.y - dst_tl.y + 1, dst_br.x - dst_tl.x + 1, src.type(), d_dst_);
|
|
|
|
gpu::remap(d_src_, d_dst_, d_xmap_, d_ymap_, interp_mode, border_mode);
|
|
|
|
d_dst_.download(dst);
|
|
|
|
return dst_tl;
|
|
}
|
|
|
|
|
|
void SphericalWarper::detectResultRoi(Point &dst_tl, Point &dst_br)
|
|
{
|
|
detectResultRoiByBorder(dst_tl, dst_br);
|
|
|
|
float tl_uf = static_cast<float>(dst_tl.x);
|
|
float tl_vf = static_cast<float>(dst_tl.y);
|
|
float br_uf = static_cast<float>(dst_br.x);
|
|
float br_vf = static_cast<float>(dst_br.y);
|
|
|
|
float x = projector_.rinv[1];
|
|
float y = projector_.rinv[4];
|
|
float z = projector_.rinv[7];
|
|
if (y > 0.f)
|
|
{
|
|
x = projector_.focal * x / z + src_size_.width * 0.5f;
|
|
y = projector_.focal * y / z + src_size_.height * 0.5f;
|
|
if (x > 0.f && x < src_size_.width && y > 0.f && y < src_size_.height)
|
|
{
|
|
tl_uf = min(tl_uf, 0.f); tl_vf = min(tl_vf, static_cast<float>(CV_PI * projector_.scale));
|
|
br_uf = max(br_uf, 0.f); br_vf = max(br_vf, static_cast<float>(CV_PI * projector_.scale));
|
|
}
|
|
}
|
|
|
|
x = projector_.rinv[1];
|
|
y = -projector_.rinv[4];
|
|
z = projector_.rinv[7];
|
|
if (y > 0.f)
|
|
{
|
|
x = projector_.focal * x / z + src_size_.width * 0.5f;
|
|
y = projector_.focal * y / z + src_size_.height * 0.5f;
|
|
if (x > 0.f && x < src_size_.width && y > 0.f && y < src_size_.height)
|
|
{
|
|
tl_uf = min(tl_uf, 0.f); tl_vf = min(tl_vf, static_cast<float>(0));
|
|
br_uf = max(br_uf, 0.f); br_vf = max(br_vf, static_cast<float>(0));
|
|
}
|
|
}
|
|
|
|
dst_tl.x = static_cast<int>(tl_uf);
|
|
dst_tl.y = static_cast<int>(tl_vf);
|
|
dst_br.x = static_cast<int>(br_uf);
|
|
dst_br.y = static_cast<int>(br_vf);
|
|
}
|
|
|
|
|
|
Point SphericalWarperGpu::warp(const Mat &src, float focal, const Mat &R, Mat &dst,
|
|
int interp_mode, int border_mode)
|
|
{
|
|
src_size_ = src.size();
|
|
projector_.size = src.size();
|
|
projector_.focal = focal;
|
|
projector_.setTransformation(R);
|
|
|
|
cv::Point dst_tl, dst_br;
|
|
detectResultRoi(dst_tl, dst_br);
|
|
|
|
gpu::buildWarpSphericalMaps(src.size(), Rect(dst_tl, Point(dst_br.x+1, dst_br.y+1)),
|
|
R, focal, projector_.scale, d_xmap_, d_ymap_);
|
|
|
|
gpu::ensureSizeIsEnough(src.size(), src.type(), d_src_);
|
|
d_src_.upload(src);
|
|
|
|
gpu::ensureSizeIsEnough(dst_br.y - dst_tl.y + 1, dst_br.x - dst_tl.x + 1, src.type(), d_dst_);
|
|
|
|
gpu::remap(d_src_, d_dst_, d_xmap_, d_ymap_, interp_mode, border_mode);
|
|
|
|
d_dst_.download(dst);
|
|
|
|
return dst_tl;
|
|
}
|
|
|
|
|
|
Point CylindricalWarperGpu::warp(const Mat &src, float focal, const Mat &R, Mat &dst,
|
|
int interp_mode, int border_mode)
|
|
{
|
|
src_size_ = src.size();
|
|
projector_.size = src.size();
|
|
projector_.focal = focal;
|
|
projector_.setTransformation(R);
|
|
|
|
cv::Point dst_tl, dst_br;
|
|
detectResultRoi(dst_tl, dst_br);
|
|
|
|
gpu::buildWarpCylindricalMaps(src.size(), Rect(dst_tl, Point(dst_br.x+1, dst_br.y+1)),
|
|
R, focal, projector_.scale, d_xmap_, d_ymap_);
|
|
|
|
gpu::ensureSizeIsEnough(src.size(), src.type(), d_src_);
|
|
d_src_.upload(src);
|
|
|
|
gpu::ensureSizeIsEnough(dst_br.y - dst_tl.y + 1, dst_br.x - dst_tl.x + 1, src.type(), d_dst_);
|
|
|
|
gpu::remap(d_src_, d_dst_, d_xmap_, d_ymap_, interp_mode, border_mode);
|
|
|
|
d_dst_.download(dst);
|
|
|
|
return dst_tl;
|
|
}
|