基于百度智能云的OCR接口进行图文识别

private void btnLoadImage_Click(object sender, EventArgs e)
        {
            var imageFile = FileDialogHelper.OpenImage(false, "");
            if(imageFile != null)
            {
                var str = BaiduOcr(imageFile);
                //var str = TesseractOcr(imageFile);
                this.txtResuilt.Text = str;
            }
        }
        private static string BaiduOcr(string imageFile)
        {
            var APIKey = "**********";
            var SecretKey = "********";
            var ocr = new Baidu.Aip.Ocr.Ocr(APIKey, SecretKey);
            var currentImage = FileUtil.FileToBytes(imageFile);
            var result = ocr.Accurate(currentImage);
            string str = string.Empty;
            var txts = (from obj in (JArray)result.Root["words_result"]
                        select (string)obj["words"]).ToList();
            string startString = "手术助手";
            int startIndex = 0;
            for (int i = 0; i < txts.Count(); i++)
            {
                if (txts[i] == startString)
                {
                    startIndex = i; //记录二维表的开始位置
                }
            }
            var newList = txts.Skip(startIndex + 1).ToList();
            str = string.Join("\r\n", newList);
            return str;
        }