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private void Recognize()
{
    Bitmap image = new Bitmap(@"C:\OCRTest\test.jpg");
    pictureBox1.Image = image;
    tessnet2.Tesseract ocr = new tessnet2.Tesseract();
    ocr.SetVariable("tessedit_char_whitelist", "0123456789");
    ocr.Init(@"C:\Users\user1\source\repos\Prog1\tessdata\", "eng", false); // To use correct tessdata
    List<tessnet2.Word> result = ocr.DoOCR(image, Rectangle.Empty);
    foreach (tessnet2.Word word in result)
    {
        textBox1.Text = string.Format("{0} : {1}", word.Confidence, word.Text);
    }
}

我在这里得到 System.AccessViolationException：List<tessnet2.Word> result = ocr.DoOCR(image, Rectangle.Empty);

库tessnet2.dll for x86，跟x64情况一样。

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1 回答 1

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问题在于图片文件尺寸。在我将图片大小调整为 250x100px 后解决了

于 2019-07-08T13:38:36.020 回答