Method run

test/cv/ImageProcessTest.cpp:232–258

public:
    virtual ~ImageProcessGrayToRGBATest() = default;
    virtual bool run(int precision) {
        int w = 15, h = 1, size = w * h;
        auto gray = genSourceData(h, w, 1);
        std::vector<uint8_t> rgba(size * 4);
        std::shared_ptr<MNN::Tensor> tensor(MNN::Tensor::create<uint8_t>(std::vector<int>{1, h, w, 4}, rgba.data()));

        ImageProcess::Config config;
        config.sourceFormat = GRAY;
        config.destFormat   = RGBA;
        std::shared_ptr<ImageProcess> process(ImageProcess::create(config));
        process->convert(gray.data(), w, h, 0, tensor.get());
        for (int i = 0; i < size; ++i) {
            int s = gray[i];
            int r = rgba[4 * i + 0];
            int g = rgba[4 * i + 1];
            int b = rgba[4 * i + 2];

            int y = s;
            int a = rgba[4 * i + 3];

            if (y != r || y != g || y != b || a != 255) {
                MNN_ERROR("Turn gray to RGBA:%d, %d -> %d,%d,%d,%d\n", i, s, r, g, b, a);
                return false;
            }
        }
        return true;
    }
};
MNNTestSuiteRegister(ImageProcessGrayToRGBATest, "cv/image_process/gray_to_rgba");