Merge pull request #26872 from sturkmen72:ImageEncoders_revisions

Performance tests for image encoders and decoders and code cleanup #26872 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
2026-07-29 23:33:05 +04:00 · 2025-02-04 12:21:55 +03:00
parent 59c3b6c995
commit e8e49ab7a8
10 changed files with 155 additions and 26 deletions
@@ -0,0 +1,131 @@
+// 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
+
+#include "perf_precomp.hpp"
+
+namespace opencv_test
+{
+
+#ifdef HAVE_PNG
+
+using namespace perf;
+
+typedef perf::TestBaseWithParam<std::string> Decode;
+typedef perf::TestBaseWithParam<std::string> Encode;
+
+const string exts[] = {
+#ifdef HAVE_AVIF
+    ".avif",
+#endif
+    ".bmp",
+#ifdef HAVE_IMGCODEC_GIF
+    ".gif",
+#endif
+#if (defined(HAVE_JASPER) && defined(OPENCV_IMGCODECS_ENABLE_JASPER_TESTS)) \
+    || defined(HAVE_OPENJPEG)
+    ".jp2",
+#endif
+#ifdef HAVE_JPEG
+    ".jpg",
+#endif
+#ifdef HAVE_JPEGXL
+    ".jxl",
+#endif
+    ".png",
+#ifdef HAVE_IMGCODEC_PXM
+    ".ppm",
+#endif
+#ifdef HAVE_IMGCODEC_SUNRASTER
+    ".ras",
+#endif
+#ifdef HAVE_TIFF
+    ".tiff",
+#endif
+#ifdef HAVE_WEBP
+    ".webp",
+#endif
+};
+
+const string exts_multi[] = {
+#ifdef HAVE_AVIF
+    ".avif",
+#endif
+#ifdef HAVE_IMGCODEC_GIF
+    ".gif",
+#endif
+    ".png",
+#ifdef HAVE_TIFF
+    ".tiff",
+#endif
+#ifdef HAVE_WEBP
+    ".webp",
+#endif
+};
+
+PERF_TEST_P(Decode, bgr, testing::ValuesIn(exts))
+{
+    String filename = getDataPath("perf/1920x1080.png");
+
+    Mat src = imread(filename);
+    EXPECT_FALSE(src.empty()) << "Cannot open test image perf/1920x1080.png";
+    vector<uchar> buf;
+    EXPECT_TRUE(imencode(GetParam(), src, buf));
+
+    TEST_CYCLE() imdecode(buf, IMREAD_UNCHANGED);
+
+    SANITY_CHECK_NOTHING();
+}
+
+PERF_TEST_P(Decode, rgb, testing::ValuesIn(exts))
+{
+    String filename = getDataPath("perf/1920x1080.png");
+
+    Mat src = imread(filename);
+    EXPECT_FALSE(src.empty()) << "Cannot open test image perf/1920x1080.png";
+    vector<uchar> buf;
+    EXPECT_TRUE(imencode(GetParam(), src, buf));
+
+    TEST_CYCLE() imdecode(buf, IMREAD_COLOR_RGB);
+
+    SANITY_CHECK_NOTHING();
+}
+
+PERF_TEST_P(Encode, bgr, testing::ValuesIn(exts))
+{
+    String filename = getDataPath("perf/1920x1080.png");
+
+    Mat src = imread(filename);
+    EXPECT_FALSE(src.empty()) << "Cannot open test image perf/1920x1080.png";
+    vector<uchar> buf;
+
+    TEST_CYCLE() imencode(GetParam(), src, buf);
+
+    std::cout << "Encoded buffer size: " << buf.size()
+        << " bytes, Compression ratio: " << std::fixed << std::setprecision(2)
+        << (static_cast<double>(buf.size()) / (src.total() * src.channels())) * 100.0 << "%" << std::endl;
+
+    SANITY_CHECK_NOTHING();
+}
+
+PERF_TEST_P(Encode, multi, testing::ValuesIn(exts_multi))
+{
+    String filename = getDataPath("perf/1920x1080.png");
+    vector<Mat> vec;
+    EXPECT_TRUE(imreadmulti(filename, vec));
+    vec.push_back(vec.back().clone());
+    circle(vec.back(), Point(100, 100), 45, Scalar(0, 0, 255, 0), 2, LINE_AA);
+    vector<uchar> buf;
+    EXPECT_TRUE(imwrite("test" + GetParam(), vec));
+
+    TEST_CYCLE() imencode(GetParam(), vec, buf);
+
+    std::cout << "Encoded buffer size: " << buf.size()
+        << " bytes, Compression ratio: " << std::fixed << std::setprecision(2)
+        << (static_cast<double>(buf.size()) / (vec[0].total() * vec[0].channels())) * 100.0 << "%" << std::endl;
+
+    SANITY_CHECK_NOTHING();
+}
+#endif // HAVE_PNG
+
+} // namespace