public string OCRProcess(Bitmap img)
{
Bitmap processedImg = ImageProcFunc.Auto_Thresholding(img, imgFunc, imgFuncP1, imgFuncP2);
try
{
//img.Save(Environment.CurrentDirectory + "\\temp\\tmp.PNG");
processedImg.Save(Environment.CurrentDirectory + "\\temp\\tmp.PNG", System.Drawing.Imaging.ImageFormat.Png);
Process p = new Process();
// Redirect the output stream of the child process.
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.FileName = "C:\\Program Files (x86)\\Tesseract-OCR\\tesseract";
p.StartInfo.Arguments = "-l jpn temp\\tmp.PNG temp\\outputbase";
p.Start();
// Do not wait for the child process to exit before
// reading to the end of its redirected stream.
// p.WaitForExit();
// Read the output stream first and then wait.
string output = p.StandardOutput.ReadToEnd();
p.WaitForExit();
byte[] bs = System.IO.File.ReadAllBytes(Environment.CurrentDirectory + "\\temp\\outputbase.txt");
string result = Encoding.UTF8.GetString(bs);
return(result);
}
catch (Exception ex)
{
errorInfo = ex.Message;
return(null);
}
}
/// <summary>
/// OCR处理，根据设定的截图区域自动截图后识别
/// </summary>
/// <returns>返回识别结果，如果为空可通过GetLastError得到错误提示</returns>
public Task <string> OCRProcessAsync()
{
Bitmap img = ScreenCapture.GetWindowRectCapture(WinHandle, OCRArea, isAllWin);
if (img == null)
{
errorInfo = "未设置截图区域";
return(null);
}
Bitmap processedImg = ImageProcFunc.Auto_Thresholding(img, imgProc);
return(OCRProcessAsync(processedImg));
}
public string OCRProcess(Bitmap img)
{
try {
Bitmap processedImg = ImageProcFunc.Auto_Thresholding(img, imgFunc, imgFuncP1, imgFuncP2);
var page = TessOCR.Process(processedImg);
string res = page.GetText();
page.Dispose();
return(res);
}
catch (Exception ex) {
errorInfo = ex.Message;
return(null);
}
}
/// <summary>
/// OCR处理，根据设定的截图区域自动截图后识别
/// </summary>
/// <returns>返回识别结果，如果为空可通过GetLastError得到错误提示</returns>
public string OCRProcess()
{
if (OCRArea != null)
{
Bitmap img = new Bitmap(ScreenCapture.GetWindowRectCapture(WinHandle, OCRArea, isAllWin));
Bitmap processedImg = ImageProcFunc.Auto_Thresholding(img, imgProc);
return(OCRProcess(new Bitmap(processedImg)));
}
else
{
errorInfo = "未设置截图区域";
return(null);
}
}
public string OCRProcess(Bitmap img)
{
if (img == null || langCode == null || langCode == "")
{
errorInfo = "Param Missing";
return(null);
}
Bitmap processedImg = ImageProcFunc.Auto_Thresholding(img, imgFunc, imgFuncP1, imgFuncP2);
string host = "https://aip.baidubce.com/rest/2.0/ocr/v1/general_basic?access_token=" + accessToken;
Encoding encoding = Encoding.Default;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host);
request.Method = "post";
request.KeepAlive = true;
// 图片的base64编码
string base64 = ImageProcFunc.GetFileBase64(processedImg);
String str = "language_type=" + langCode + "&image=" + HttpUtility.UrlEncode(base64);
byte[] buffer = encoding.GetBytes(str);
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8);
string result = reader.ReadToEnd();
string ret = "";
BaiduOCRresOutInfo oinfo = JsonConvert.DeserializeObject <BaiduOCRresOutInfo>(result);
if (oinfo.words_result != null)
{
for (int i = 0; i < oinfo.words_result_num; i++)
{
ret = ret + oinfo.words_result[i].words + "\n";
}
return(ret);
}
else
{
errorInfo = "UnknownError";
return(null);
}
}