Function cannyImageOtsuBatchTest

test/canny.cpp:225–260

template<typename T>
void cannyImageOtsuBatchTest(string pTestFile, const dim_t targetBatchCount) {
    SUPPORTED_TYPE_CHECK(T);
    IMAGEIO_ENABLED_CHECK();

    using af::array;
    using af::canny;
    using af::loadImage;
    using af::loadImageNative;
    using af::tile;

    vector<dim4> inDims;
    vector<string> inFiles;
    vector<dim_t> outSizes;
    vector<string> outFiles;

    readImageTests(pTestFile, inDims, inFiles, outSizes, outFiles);

    size_t testCount = inDims.size();

    for (size_t testId = 0; testId < testCount; ++testId) {
        inFiles[testId].insert(0, string(TEST_DIR "/CannyEdgeDetector/"));
        outFiles[testId].insert(0, string(TEST_DIR "/CannyEdgeDetector/"));

        af_dtype type  = (af_dtype)dtype_traits<T>::af_type;
        array readGold = loadImageNative(outFiles[testId].c_str());
        array goldIm   = tile(readGold, 1, 1, targetBatchCount);
        array readImg  = loadImage(inFiles[testId].c_str(), false).as(type);
        array inputIm  = tile(readImg, 1, 1, targetBatchCount);

        array outIm =
              canny(inputIm, AF_CANNY_THRESHOLD_AUTO_OTSU, 0.08, 0.32, 3, false);
        outIm *= 255.0;

        ASSERT_IMAGES_NEAR(goldIm, outIm.as(u8), 1.0e-3);
    }
}

TEST(CannyEdgeDetector, BatchofImagesUsingCPPAPI) {
    UNSUPPORTED_BACKEND(AF_BACKEND_ONEAPI);