Tesseract“估計分辨率為304”行逐字打印+需要> 1秒才能打印。 為什么以及如何抑制？

Question

    tesseract::TessBaseAPI tess;
    if (tess.Init("./languages/fast/", "eng"))
    {
        std::cout << "OCRTesseract: Could not initialize tesseract." << std::endl;
        std::exit(1);
    }
    tess.SetPageSegMode(tesseract::PageSegMode::PSM_AUTO);
    tess.SetVariable("save_best_choices", "T");
    tess.SetVariable("user_defined_dpi", "70");
    auto buffer = ocrQueue.getBuffer();

    tess.SetImage((const unsigned char*)buffer->data(), buffer->getWidth(), buffer->getHeight(), 3, buffer->getWidth()*3);
    tess.Recognize(0);

    std::cout << tess.GetUTF8Text() << std::endl;

每次運行此代碼時，我都會得到

Estimating resolution as 304

打印需要>1 秒，並且逐字打印，這很煩人。

如何抑制這種情況？

Answer 1

tess.SetVariable("user_defined_dpi", "71");

或者

tess.SetVariable("debug_file", "/dev/null");