Leadtools.Forms.Ocr Namespace > IOcrDocument Interface > SaveXml Method : SaveXml(String,OcrXmlOutputOptions) Method |
void SaveXml( string fileName, OcrXmlOutputOptions options )
'Declaration Overloads Sub SaveXml( _ ByVal fileName As String, _ ByVal options As OcrXmlOutputOptions _ )
'Usage Dim instance As IOcrDocument Dim fileName As String Dim options As OcrXmlOutputOptions instance.SaveXml(fileName, options)
void SaveXml( string fileName, OcrXmlOutputOptions options )
void SaveXml( String^ fileName, OcrXmlOutputOptions options )
To save the output document as XML to a .NET stream, use IOcrDocument.SaveXml(Stream stream, OcrXmlOutputOptions options) and to obtain an XML directly use IOcrDocument.SaveXml(OcrXmlOutputOptions options).
Each IOcrPage object in the Pages collection of this IOcrDocument object holds its recognition data internally. This data is used by this method to generate the final output document.
Typical OCR operation using the IOcrEngine involves starting up the engine. Creating a new IOcrDocument object using the IOcrDocumentManager.CreateDocument method before adding the pages into it and perform either automatic or manual zoning. Once this is done, you can use the IOcrPage.Recognize method of each page to collect the recognition data and store it internally in the page. After the recognition data is collected, you use the various IOcrDocument.Save methods to save the document to its final format as well as IOcrDocument.SaveXml to save as XML.
You can also use the IOcrPage.RecognizeText method to recognize and return the recognition data as a simple System.String object.
You can use IOcrDocument.SaveXml as many times as required to save the document to multiple formats. You can also continue to add and recognize pages (through the IOcrPage.Recognize method after you save the document.
For each IOcrPage that is not recognized (the user did not call Recognize and the value of the page IOcrPage.IsRecognized is still false) the IOcrDocument will insert an empty page into the final document.
To get the low level recognition data including the recognized characters and their confidence, use IOcrPage.GetRecognizedCharacters instead.
The IOcrDocument interface implements System.IDisposable, hence you must dispose the IOcrDocument object as soon as you are finished using it. Disposing an IOcrDocument object will free all the pages stored inside its IOcrDocument.Pages collection.
Imports Leadtools Imports Leadtools.Codecs Imports Leadtools.Forms.Ocr Imports Leadtools.Forms Imports Leadtools.WinForms Imports Leadtools.Drawing Private Sub SaveAsXmlExample() Dim tifFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif") Dim xmlFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.xml") ' Create an instance of the engine Using ocrEngine As IOcrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, False) ' Start the engine using default parameters ocrEngine.Startup(Nothing, Nothing, Nothing, LEAD_VARS.OcrAdvantageRuntimeDir) ' Create an OCR document Using ocrDocument As IOcrDocument = ocrEngine.DocumentManager.CreateDocument() ' Add this image to the document Dim ocrPage As IOcrPage = ocrDocument.Pages.AddPage(tifFileName, Nothing) ' Recognize it ocrPage.Recognize(Nothing) ' Save the result XML to a disk file ' Only save the words not characters, if we want the characters ' we need to change the options to OcrXmlOutputOptions.Characters ocrDocument.SaveXml(xmlFileName, OcrXmlOutputOptions.None) End Using ' Shutdown the engine ' Note: calling Dispose will also automatically shutdown the engine if it has been started ocrEngine.Shutdown() End Using End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" Public Const OcrAdvantageRuntimeDir As String = "C:\LEADTOOLS 18\Bin\Common\OcrAdvantageRuntime" End Class
using Leadtools; using Leadtools.Codecs; using Leadtools.Forms.Ocr; using Leadtools.Forms; using Leadtools.WinForms; using Leadtools.Drawing; private void SaveAsXmlExample() { string tifFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif"); string xmlFileName = Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.xml"); // Create an instance of the engine using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false)) { // Start the engine using default parameters ocrEngine.Startup(null, null, null, LEAD_VARS.OcrAdvantageRuntimeDir); // Create an OCR document using (IOcrDocument ocrDocument = ocrEngine.DocumentManager.CreateDocument()) { // Add this image to the document IOcrPage ocrPage = ocrDocument.Pages.AddPage(tifFileName, null); // Recognize it ocrPage.Recognize(null); // Save the result XML to a disk file // Only save the words not characters, if we want the characters // we need to change the options to OcrXmlOutputOptions.Characters ocrDocument.SaveXml(xmlFileName, OcrXmlOutputOptions.None); } // Shutdown the engine // Note: calling Dispose will also automatically shutdown the engine if it has been started ocrEngine.Shutdown(); } } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; public const string OcrAdvantageRuntimeDir = @"C:\LEADTOOLS 18\Bin\Common\OcrAdvantageRuntime"; }
using Leadtools; using Leadtools.Codecs; using Leadtools.Forms.Ocr; using Leadtools.Forms; private async Task SaveAsXmlExample() { string tifFileName = @"Assets\Ocr1.tif"; string xmlFileName = "Ocr1.xml"; // Create an instance of the engine IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Advantage, false); // Start the engine using default parameters ocrEngine.Startup(null, null, String.Empty, Tools.OcrEnginePath); // Create an OCR document IOcrDocument ocrDocument = ocrEngine.DocumentManager.CreateDocument(); // Add this image to the document IOcrPage ocrPage = null; using (RasterCodecs codecs = new RasterCodecs()) { StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(tifFileName); using (RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile))) ocrPage = ocrDocument.Pages.AddPage(image, null); } // Recognize it ocrPage.Recognize(null); // Save the result XML to a disk file // Only save the words not characters, if we want the characters // we need to change the options to OcrXmlOutputOptions.Characters StorageFile xmlFile = await Tools.AppInstallFolder.GetFileAsync(xmlFileName); await ocrDocument.SaveXmlAsync(xmlFile, OcrXmlOutputOptions.None); // Shutdown the engine ocrEngine.Shutdown(); }
IOcrDocument Interface
IOcrDocument Members
Overload List
Leadtools.Forms.DocumentWriters.DocumentFormat
IOcrDocumentManager Interface
IOcrDocument.Save
IOcrDocument.SaveXml
IOcrPage.Recognize
IOcrEngine Interface
OcrEngineManager Class
OcrEngineType Enumeration
Programming with the LEADTOOLS .NET OCR
Files to be Included with Your Application