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WPF下，用了InkCanvas控件和System.Windows.Ink进行手写识别。识别率还算可以。
//添加对 WPF 墨迹分析程序集、IAWinFX.dll、IACore.dll 和 IALoader.dll（这些内容可以在 \Program Files\Reference Assemblies\Microsoft\Tablet PC\v1.7 中找到）的引用。
using System.Windows.Ink;
// Recognizes handwriting by using RecognizerContext
private void buttonClick(object sender, RoutedEventArgs e)
{
InkAnalyzer theInkAnalyzer = new InkAnalyzer();
theInkAnalyzer.AddStrokes(theInkCanvas.Strokes);
theInkAnalyzer.SetStrokesLanguageId(theInkCanvas.Strokes, 0x0804); // 0x0804 简体中文
theInkAnalyzer.SetStrokesType(theInkCanvas.Strokes, StrokeType.Writing);
AnalysisStatus status = theInkAnalyzer.Analyze();
if (status.Successful)
{
//textBox1.Text = theInkAnalyzer.GetRecognizedString();
textBox1.Text = "";
for (int i = 0; i < theInkAnalyzer.GetAlternates().Count; i++)
{
textBox1.Text += theInkAnalyzer.GetAlternates()[i].RecognizedString;
}
}
else
{
MessageBox.Show("识别失败");
}
}
tablet pc输入面板是调用的哪个识别库？可否在WPF程序中调用它？达到tablet pc输入面板那样高的识别率？ 如果换种方式在程序中打开tablet pc输入面板窗口的话， |
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如果有人需要的话，再把方法贴上来。
否则就不花时间了。 用的是Microsoft.Ink |
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在msdn上面下载的，地址忘了。好像是一个就做TabletPC.exe的自解压包。
文件名称是inkrecognition（试试能搜到不）。 以下为原始内容：
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: InkRecognition.cs
// Simple Ink Recognition Sample Application
//
// This program demonstrates how one can build a basic handwriting
// recognition application using Microsoft Tablet PC Automation API.
// It first creates an InkCollector object to enable inking
// in the window. Upon receiving the "Recognize!" command, fired
// from the application"s button, ToString() is invoked on the
// collected ink strokes to retrieve the best match using the
// default recognizer. The results are presented in a message box.
//
// The features used are: InkCollector, Ink, Strokes,
// RecognizerContext, and RecognizerResult
//
//--------------------------------------------------------------------------
using System;
using System.Drawing;
using System.Windows.Forms;
// The Ink namespace, which contains the Tablet PC Platform API
using Microsoft.Ink;
namespace Microsoft.Samples.TabletPC.InkRecognition
{
/// <summary>
/// The InkRecognition Sample Application form class
/// </summary>
public class InkRecognition : System.Windows.Forms.Form
{
// Declare the Ink Collector object
private InkCollector myInkCollector = null;
// myRecognizers is used to retrieve the number of installed recognizers
Recognizers myRecognizers;
#region Standard Template Code
private System.Windows.Forms.GroupBox gbInkArea;
private System.Windows.Forms.Button btnRecognize;
private System.Windows.Forms.TextBox txtResults;
private System.ComponentModel.Container components = null;
#endregion
/// <summary>
/// Initialize the form and ink collector
/// </summary>
public InkRecognition()
{
#region Standard Template Code
//
// Required for Windows Form Designer support
//
InitializeComponent();
#endregion
}
#region Standard Template Code
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
if (myInkCollector != null)
{
myInkCollector.Dispose();
}
}
base.Dispose( disposing );
}
#endregion
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.gbInkArea = new System.Windows.Forms.GroupBox();
this.btnRecognize = new System.Windows.Forms.Button();
this.txtResults = new System.Windows.Forms.TextBox();
this.SuspendLayout();
//
// gbInkArea
//
this.gbInkArea.Location = new System.Drawing.Point(8, 0);
this.gbInkArea.Name = "gbInkArea";
this.gbInkArea.Size = new System.Drawing.Size(280, 136);
this.gbInkArea.TabIndex = 0;
this.gbInkArea.TabStop = false;
this.gbInkArea.Text = "Ink Here";
//
// btnRecognize
//
this.btnRecognize.Location = new System.Drawing.Point(8, 144);
this.btnRecognize.Name = "btnRecognize";
this.btnRecognize.Size = new System.Drawing.Size(280, 23);
this.btnRecognize.TabIndex = 1;
this.btnRecognize.Text = "Recognize Ink";
this.btnRecognize.Click += new System.EventHandler(this.btnRecognize_Click);
//
// txtResults
//
this.txtResults.BackColor = System.Drawing.SystemColors.Window;
this.txtResults.ForeColor = System.Drawing.SystemColors.WindowText;
this.txtResults.Location = new System.Drawing.Point(8, 176);
this.txtResults.Name = "txtResults";
this.txtResults.ReadOnly = true;
this.txtResults.Size = new System.Drawing.Size(280, 20);
this.txtResults.TabIndex = 2;
this.txtResults.Text = "";
//
// InkRecognition
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 206);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.txtResults,
this.btnRecognize,
this.gbInkArea});
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
this.MaximizeBox = false;
this.Name = "InkRecognition";
this.Text = "Ink Recognition Sample";
this.Load += new System.EventHandler(this.InkRecognition_Load);
this.ResumeLayout(false);
}
#endregion
#region Standard Template Code
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new InkRecognition());
}
#endregion
/// <summary>
/// Event Handler from Form Load Event
/// Setup the ink collector for collection
/// </summary>
/// <param name="sender">The control that raised the event.</param>
/// <param name="e">The event arguments.</param>
private void InkRecognition_Load(object sender, System.EventArgs e)
{
// Create the recognizers collection
myRecognizers = new Recognizers();
// Create a new ink collector that uses the group box handle
myInkCollector = new InkCollector(gbInkArea.Handle);
// Turn the ink collector on
myInkCollector.Enabled = true;
}
/// <summary>
/// Event Handle recognize button click event
/// </summary>
/// <param name="sender">The control that raised the event.</param>
/// <param name="e">The event arguments.</param>
private void btnRecognize_Click(object sender, System.EventArgs e)
{
// Check to ensure that the user has at least one recognizer installed
// Note that this is a preventive check - otherwise, an exception will
// occur during recognition.
if (0 == myRecognizers.Count)
{
MessageBox.Show("There are no handwriting recognizers installed. You need to have at least one in order to recognize ink.");
}
else
{
// Note that the Strokes" ToString() method is a
// shortcut for retrieving the best match using the
// default recognizer. The same result can also be
// obtained using the RecognizerContext. For an
// example, uncomment the following lines of code:
//
// using (RecognizerContext myRecoContext = new RecognizerContext())
// {
// RecognitionStatus status;
// RecognitionResult recoResult;
//
// myRecoContext.Strokes = myInkCollector.Ink.Strokes;
// recoResult = myRecoContext.Recognize(out status);
// txtResults.SelectedText = recoResult.TopString;
// }
txtResults.SelectedText = myInkCollector.Ink.Strokes.ToString();
// If the mouse is pressed, do not perform the deletion -
// this prevents deleting a stroke that is still being drawn
if (!myInkCollector.CollectingInk)
{
// Once the strokes have been recognized, delete them
myInkCollector.Ink.DeleteStrokes();
// Repaint the drawing area
gbInkArea.Refresh();
}
}
}
}
}
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请问一下楼主，为什么我用了你的代码，执行到theInkAnalyzer.AddStrokes(theInkCanvas.Strokes);这一句的时候就会导致整个程序异常关闭呢？求指导……
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wpf下的添加那几个dll文件的引用了么？
//IAWinFX.dll、IACore.dll 和 IALoader.dll（这些内容可以在 \Program Files\Reference Assemblies\Microsoft\Tablet PC\v1.7 中找到）的引用。 5楼的方法是winform下的。 这里有个wpf下很好用的，dll文件在项目里，识别率蛮高的。 |
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楼主，我跑了你的程序
AnalysisStatus status = theInkAnalyzer.Analyze(); status.Successful总是false，什么原因，还在查 |
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看了下MSDN上的那个demo和楼主的一样
MSDN上有这几句“此示例要求在系统上安装手写识别器。” “添加对 WPF 墨迹分析程序集、IAWinFX.dll、IACore.dll 和 IALoader.dll（这些内容可以在 \Program Files\Reference Assemblies\Microsoft\Tablet PC\v1.7 中找到）的引用。” 我的系统上有没有手写识别器我不清楚（是不是xp自带识别器？反正我没装过） 但是“\Program Files\Reference Assemblies\Microsoft\Tablet PC\v1.7”这里面没有IALoader.dll，IAWinFX.dll和IACore.dll都有 是不是这个问题导致我总是识别失败 |
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1、Windows7系统： 正常 |
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win7自带tabletPC，windowsXp需要下一个tabletPC，里面有demo，可以看下 识别率还是挺高的 |
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谢谢啊 |
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我现在就是这个情况,请你问你怎么搞定的? |
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