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//---------------------------------------------------------------------------//
// Copyright (c) 2013-2014 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//
#define BOOST_TEST_MODULE TestInteropOpenCV
#include <boost/test/unit_test.hpp>
#include <boost/compute/system.hpp>
#include <boost/compute/container/vector.hpp>
#include <boost/compute/algorithm/reverse.hpp>
#include <boost/compute/interop/opencv.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include "check_macros.hpp"
#include "context_setup.hpp"
namespace bcl = boost::compute;
BOOST_AUTO_TEST_CASE(opencv_mat_to_buffer)
{
// create opencv mat
cv::Mat mat(1, 4, CV_32F);
mat.at<float>(0, 0) = 0.0f;
mat.at<float>(0, 1) = 2.5f;
mat.at<float>(0, 2) = 4.1f;
mat.at<float>(0, 3) = 5.6f;
// copy mat to gpu vector
bcl::vector<float> vector(4, context);
bcl::opencv_copy_mat_to_buffer(mat, vector.begin(), queue);
CHECK_RANGE_EQUAL(float, 4, vector, (0.0f, 2.5f, 4.1f, 5.6f));
// reverse gpu vector and copy back to mat
bcl::reverse(vector.begin(), vector.end(), queue);
bcl::opencv_copy_buffer_to_mat(vector.begin(), mat, queue);
BOOST_CHECK_EQUAL(mat.at<float>(0), 5.6f);
BOOST_CHECK_EQUAL(mat.at<float>(1), 4.1f);
BOOST_CHECK_EQUAL(mat.at<float>(2), 2.5f);
BOOST_CHECK_EQUAL(mat.at<float>(3), 0.0f);
}
BOOST_AUTO_TEST_CASE(opencv_image_format)
{
// 8-bit uchar BGRA
BOOST_CHECK(
bcl::opencv_get_mat_image_format(cv::Mat(32, 32, CV_8UC4)) ==
bcl::image_format(CL_BGRA, CL_UNORM_INT8)
);
// 32-bit float
BOOST_CHECK(
bcl::opencv_get_mat_image_format(cv::Mat(32, 32, CV_32F)) ==
bcl::image_format(CL_INTENSITY, CL_FLOAT)
);
// 32-bit float RGBA
BOOST_CHECK(
bcl::opencv_get_mat_image_format(cv::Mat(32, 32, CV_32FC4)) ==
bcl::image_format(CL_RGBA, CL_FLOAT)
);
// 16-bit uchar BGRA
BOOST_CHECK(
bcl::opencv_get_mat_image_format(cv::Mat(32, 32, CV_16UC4)) ==
bcl::image_format(CL_BGRA, CL_UNORM_INT16)
);
// 8-bit uchar
BOOST_CHECK(
bcl::opencv_get_mat_image_format(cv::Mat(32, 32, CV_8UC1)) ==
bcl::image_format(CL_INTENSITY, CL_UNORM_INT8)
);
}
BOOST_AUTO_TEST_CASE(opencv_float_mat_image2d)
{
REQUIRES_OPENCL_VERSION(1,2);
cv::Vec4f pixel;
// create opencv mat
cv::Mat mat(2, 2, CV_32FC4, cv::Scalar(100, 150, 200, 255));
// transfer image to gpu
bcl::image2d image =
bcl::opencv_create_image2d_with_mat(
mat,
bcl::image2d::read_only,
queue
);
// copy the data back to cpu
bcl::opencv_copy_image_to_mat(image, mat, queue);
pixel = mat.at<cv::Vec4f>(1,1);
BOOST_CHECK_EQUAL(pixel[0], 100.0f);
BOOST_CHECK_EQUAL(pixel[1], 150.0f);
BOOST_CHECK_EQUAL(pixel[2], 200.0f);
BOOST_CHECK_EQUAL(pixel[3], 255.0f);
}
BOOST_AUTO_TEST_SUITE_END()
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