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<%@ Page Language="C#" MasterPageFile="~/tpl/Demo.Master" AutoEventWireup="true" CodeBehind="LoadImage.aspx.cs" Inherits="Aspose.OCR.Demos.LoadImage" Title="Aspose.OCR Demos" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeaderContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
	<table width="90%" align="center" cellspacing="0" cellpadding="0" border="0">
		<tr>
			<td height="41" valign="top">
				<img src="/Common/images/heading_lft.jpg" width="19" height="41" /></td>
			<td width="100%" class="demos-heading-bg">
				<h2 class="demos-heading-bg">
					&nbsp;Extracting OCR text from a BMP/TIFF image file - Aspose.OCR for .NET</h2>
			</td>
			<td valign="top">
				<img src="/Common/images/heading_rt.jpg" width="19" height="41" /></td>
		</tr>
	</table>

    Please browse a valid BMP or TIFF image file and press&nbsp; a
    button to check the output. <strong>Note</strong>: Arial and Times New Roman (16pt and 32
    pt) fonts are supported.&nbsp;<br />
    <br />
    <br />
    <br />
    
    <table>
        <tr>
            <td style="width: 500px" align="left">
                <asp:FileUpload ID="FileUpload1" runat="server" /></td>
        </tr>
        <tr>
            <td align="left" style="width: 500px">
                <asp:CheckBox ID="chkRotation" runat="server" Text="Rotated Text" />
                (Select this option if text in the image is rotated)</td>
        </tr>
        <tr>
            <td align="left">
                            <asp:Button ID="btnExtractText" runat="server" Text="Extract Text" OnClick="btnExtractText_Click" />
                </td>
        </tr>
        <tr>
            <td align="left" style="height: 30px; color: red;"><%=Session["outMessage"] %>
    <% Session["outMessage"] = ""; %>
            </td>
        </tr>
        <tr>
            <td align="left">
                Extracted OCR Text</td>
        </tr>
        <tr>
            <td align="left" style="width: 100px">
                <asp:TextBox ID="txtExtractedText" runat="server" Height="200px" ReadOnly="True"
                    TextMode="MultiLine" Width="500px"></asp:TextBox></td>
        </tr>
    </table>
   
</asp:Content>

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Aspose.OCR;
using System.IO;

namespace Aspose.OCR.Demos
{
    public partial class LoadImage : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnExtractText_Click(object sender, EventArgs e)
        {
            const string resourceFileName = @"Path\2011.07.02 v1.0 Aspose.OCR.Resouces.zip";

            /**********  BMP/TIFF File Upload block [Starts]****************/
            ///The file name to be read
            string uploadedImage = "";

            ///Upload file to server
            if (this.FileUpload1.HasFile)
            {
                if (this.FileUpload1.FileName.EndsWith(".bmp") || this.FileUpload1.FileName.EndsWith(".tiff"))
                {
                    uploadedImage = this.FileUpload1.FileName;
                    if (!File.Exists(MapPath(uploadedImage)))
                    {
                        this.FileUpload1.PostedFile.SaveAs(MapPath(this.FileUpload1.FileName));
                    }
                }
                else
                {
                    ///Write html message and exit
                    Session["outMessage"] = "<h3>Invalid file</h3>";
                    return;
                }
            }
            else
            {
                //////Write html message and exit
                Session["outMessage"] = "<h3>Please upload BMP or TIFF file</h3>";
                return;
            }
            /**********  File Upload block [Ends]****************/

            try
            {
                //Create OcrEngine instance and assign 
                //image, language and image configuration
                OcrEngine ocr = new OcrEngine();
                ocr.Image = ImageStream.FromFile(Server.MapPath(uploadedImage));

                ocr.Languages.AddLanguage(Language.Load("english"));
                ocr.Config.NeedRotationCorrection = chkRotation.Checked;
                ocr.Config.UseDefaultDictionaries = true;

                //Set resource file name and extract OCR text
                using (ocr.Resource = new FileStream(resourceFileName, FileMode.Open))
                {
                    try
                    {
                        if (ocr.Process())
                        {
                            txtExtractedText.Text = ocr.Text.ToString();
                        }
                    }
                    catch (Exception ex)
                    {
                        Session["outMessage"] = "Exception: " + ex.Message;
                    }
                }
                ocr = null;
            }
            catch (Exception ex)
            {
                Session["outMessage"] = "Exception: " + ex.Message;
            }
        }

    }
}