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// License: Apache 2.0. See LICENSE file in root directory.
// Copyright(c) 2017 Intel Corporation. All Rights Reserved.
#pragma once
#include <librealsense2/rs.hpp> // Include RealSense Cross Platform API
#include <opencv2/opencv.hpp> // Include OpenCV API
#include <exception>
// Convert rs2::frame to cv::Mat
static cv::Mat frame_to_mat(const rs2::frame& f)
{
using namespace cv;
using namespace rs2;
auto vf = f.as<video_frame>();
const int w = vf.get_width();
const int h = vf.get_height();
if (f.get_profile().format() == RS2_FORMAT_BGR8)
{
return Mat(Size(w, h), CV_8UC3, (void*)f.get_data(), Mat::AUTO_STEP);
}
else if (f.get_profile().format() == RS2_FORMAT_RGB8)
{
auto r_rgb = Mat(Size(w, h), CV_8UC3, (void*)f.get_data(), Mat::AUTO_STEP);
Mat r_bgr;
cvtColor(r_rgb, r_bgr, COLOR_RGB2BGR);
return r_bgr;
}
else if (f.get_profile().format() == RS2_FORMAT_Z16)
{
return Mat(Size(w, h), CV_16UC1, (void*)f.get_data(), Mat::AUTO_STEP);
}
else if (f.get_profile().format() == RS2_FORMAT_Y8)
{
return Mat(Size(w, h), CV_8UC1, (void*)f.get_data(), Mat::AUTO_STEP);
}
else if (f.get_profile().format() == RS2_FORMAT_DISPARITY32)
{
return Mat(Size(w, h), CV_32FC1, (void*)f.get_data(), Mat::AUTO_STEP);
}
throw std::runtime_error("Frame format is not supported yet!");
}
// Converts depth frame to a matrix of doubles with distances in meters
static cv::Mat depth_frame_to_meters( const rs2::depth_frame & f )
{
cv::Mat dm = frame_to_mat(f);
dm.convertTo( dm, CV_64F );
dm = dm * f.get_units();
return dm;
}