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imgcodecs(test): add OpenEXR I/O test

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This commit is contained in:
Alexander Alekhin 2019-06-08 14:43:01 +00:00
parent 254f88f805
commit 02bfd20760
2 changed files with 121 additions and 0 deletions
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117
modules/imgcodecs/test/test_exr.impl.hpp Normal file
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@ -0,0 +1,117 @@
// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html
//#define GENERATE_DATA
namespace opencv_test { namespace {
TEST(Imgcodecs_EXR, readWrite_32FC1)
{
const string root = cvtest::TS::ptr()->get_data_path();
const string filenameInput = root + "readwrite/test32FC1.exr";
const string filenameOutput = cv::tempfile(".exr");
#ifndef GENERATE_DATA
const Mat img = cv::imread(filenameInput, IMREAD_UNCHANGED);
#else
const Size sz(64, 32);
Mat img(sz, CV_32FC1, Scalar(0.5, 0.1, 1));
img(Rect(10, 5, sz.width - 30, sz.height - 20)).setTo(Scalar(1, 0, 0));
ASSERT_TRUE(cv::imwrite(filenameInput, img));
#endif
ASSERT_FALSE(img.empty());
ASSERT_EQ(CV_32FC1,img.type());
ASSERT_TRUE(cv::imwrite(filenameOutput, img));
const Mat img2 = cv::imread(filenameOutput, IMREAD_UNCHANGED);
ASSERT_EQ(img2.type(), img.type());
ASSERT_EQ(img2.size(), img.size());
EXPECT_LE(cvtest::norm(img, img2, NORM_INF | NORM_RELATIVE), 1e-3);
EXPECT_EQ(0, remove(filenameOutput.c_str()));
}
TEST(Imgcodecs_EXR, readWrite_32FC3)
{
const string root = cvtest::TS::ptr()->get_data_path();
const string filenameInput = root + "readwrite/test32FC3.exr";
const string filenameOutput = cv::tempfile(".exr");
#ifndef GENERATE_DATA
const Mat img = cv::imread(filenameInput, IMREAD_UNCHANGED);
#else
const Size sz(64, 32);
Mat img(sz, CV_32FC3, Scalar(0.5, 0.1, 1));
img(Rect(10, 5, sz.width - 30, sz.height - 20)).setTo(Scalar(1, 0, 0));
ASSERT_TRUE(cv::imwrite(filenameInput, img));
#endif
ASSERT_FALSE(img.empty());
ASSERT_EQ(CV_32FC3, img.type());
ASSERT_TRUE(cv::imwrite(filenameOutput, img));
const Mat img2 = cv::imread(filenameOutput, IMREAD_UNCHANGED);
ASSERT_EQ(img2.type(), img.type());
ASSERT_EQ(img2.size(), img.size());
EXPECT_LE(cvtest::norm(img, img2, NORM_INF | NORM_RELATIVE), 1e-3);
EXPECT_EQ(0, remove(filenameOutput.c_str()));
}
TEST(Imgcodecs_EXR, readWrite_32FC1_half)
{
const string root = cvtest::TS::ptr()->get_data_path();
const string filenameInput = root + "readwrite/test32FC1_half.exr";
const string filenameOutput = cv::tempfile(".exr");
std::vector<int> params;
params.push_back(IMWRITE_EXR_TYPE);
params.push_back(IMWRITE_EXR_TYPE_HALF);
#ifndef GENERATE_DATA
const Mat img = cv::imread(filenameInput, IMREAD_UNCHANGED);
#else
const Size sz(64, 32);
Mat img(sz, CV_32FC1, Scalar(0.5, 0.1, 1));
img(Rect(10, 5, sz.width - 30, sz.height - 20)).setTo(Scalar(1, 0, 0));
ASSERT_TRUE(cv::imwrite(filenameInput, img, params));
#endif
ASSERT_FALSE(img.empty());
ASSERT_EQ(CV_32FC1,img.type());
ASSERT_TRUE(cv::imwrite(filenameOutput, img, params));
const Mat img2 = cv::imread(filenameOutput, IMREAD_UNCHANGED);
ASSERT_EQ(img2.type(), img.type());
ASSERT_EQ(img2.size(), img.size());
EXPECT_LE(cvtest::norm(img, img2, NORM_INF | NORM_RELATIVE), 1e-3);
EXPECT_EQ(0, remove(filenameOutput.c_str()));
}
TEST(Imgcodecs_EXR, readWrite_32FC3_half)
{
const string root = cvtest::TS::ptr()->get_data_path();
const string filenameInput = root + "readwrite/test32FC3_half.exr";
const string filenameOutput = cv::tempfile(".exr");
std::vector<int> params;
params.push_back(IMWRITE_EXR_TYPE);
params.push_back(IMWRITE_EXR_TYPE_HALF);
#ifndef GENERATE_DATA
const Mat img = cv::imread(filenameInput, IMREAD_UNCHANGED);
#else
const Size sz(64, 32);
Mat img(sz, CV_32FC3, Scalar(0.5, 0.1, 1));
img(Rect(10, 5, sz.width - 30, sz.height - 20)).setTo(Scalar(1, 0, 0));
ASSERT_TRUE(cv::imwrite(filenameInput, img, params));
#endif
ASSERT_FALSE(img.empty());
ASSERT_EQ(CV_32FC3, img.type());
ASSERT_TRUE(cv::imwrite(filenameOutput, img, params));
const Mat img2 = cv::imread(filenameOutput, IMREAD_UNCHANGED);
ASSERT_EQ(img2.type(), img.type());
ASSERT_EQ(img2.size(), img.size());
EXPECT_LE(cvtest::norm(img, img2, NORM_INF | NORM_RELATIVE), 1e-3);
EXPECT_EQ(0, remove(filenameOutput.c_str()));
}
}} // namespace

4
modules/imgcodecs/test/test_grfmt.cpp
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@ -352,3 +352,7 @@ TEST(Imgcodecs, write_parameter_type)
}
}} // namespace
#ifdef HAVE_OPENEXR
#include "test_exr.impl.hpp"
#endif