CodecsJbigOptions Class

Provides extra options for loading and saving JBIG images.

Object Model

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public class CodecsJbigOptions

'Declaration
 
Public Class CodecsJbigOptions

'Usage
 
Dim instance As CodecsJbigOptions

public sealed class CodecsJbigOptions

function Leadtools.Codecs.CodecsJbigOptions()

public ref class CodecsJbigOptions

Example

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub CodecsJbigOptionsExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim srcImage As RasterImage = codecs.Load(srcFileName)

      ' Ex: If the file contains the image 
      ' at the following dimensions: 800X600, 
      ' 400X 300 and 200X150 and the user requests 
      ' an image with width equal to 180 for example, 
      ' then LEADTOOLS will automatically know that the 
      ' proper width is 200 and load the image at the (200X150) resolution.         
      codecs.Options.Jbig.Load.Resolution = New LeadSize(180, 0)
      Dim sizes As LeadSize() = New LeadSize(2) {}
      sizes(0) = New LeadSize(800, 600)
      sizes(1) = New LeadSize(400, 300)
      sizes(2) = New LeadSize(200, 150)
      codecs.Options.Save.SetResolutions(sizes)
      codecs.Save(srcImage, Path.Combine(LEAD_VARS.ImagesDir, "Image1_test.jbg"), RasterImageFormat.Jbig, 8)
      srcImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1_test.jbg"))

      codecs.Save(srcImage, Path.Combine(LEAD_VARS.ImagesDir, "jbg.bmp"), RasterImageFormat.Bmp, 1)

      ' Clean up
      srcImage.Dispose()
      codecs.Dispose()
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void CodecsJbigOptionsExample()
     {
         RasterCodecs codecs = new RasterCodecs();

         string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
         RasterImage srcImage = codecs.Load(srcFileName);

         // Ex: If the file contains the image 
         // at the following dimensions: 800X600, 
         // 400X 300 and 200X150 and the user requests 
         // an image with width equal to 180 for example, 
         // then LEADTOOLS will automatically know that the 
         // proper width is 200 and load the image at the (200X150) resolution.         
         codecs.Options.Jbig.Load.Resolution = new LeadSize(180, 0);
         LeadSize[] sizes = new LeadSize[3];
         sizes[0] = new LeadSize(800, 600);
         sizes[1] = new LeadSize(400, 300);
         sizes[2] = new LeadSize(200, 150);
         codecs.Options.Save.SetResolutions(sizes);
         codecs.Save(srcImage, Path.Combine(LEAD_VARS.ImagesDir, "Image1_test.jbg"), RasterImageFormat.Jbig, 8);
         srcImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1_test.jbg"));

         codecs.Save(srcImage, Path.Combine(LEAD_VARS.ImagesDir, "jbg.bmp"), RasterImageFormat.Bmp, 1);

         // Clean up
         srcImage.Dispose();
         codecs.Dispose();
     }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

CodecsOptionsExamples.prototype.CodecsJbigOptionsExample = function ( )
{
   Tools.SetLicense ( ) ;
   with (Leadtools) {
      with (Leadtools.Codecs) {
         var codecs = new RasterCodecs();

         // Load the image
         var srcFileName = "Assets\\Image1.cmp";
         var image;
         return Tools.AppInstallFolder().getFileAsync(srcFileName).then(function (loadFile) {
            return codecs.loadAsync(LeadStreamFactory.create(loadFile))
         })
         .then(function (img) {
            image = img;
            // Ex: If the file contains the image 
            // at the following dimensions: 800X600, 
            // 400X 300 and 200X150 and the user requests 
            // an image with width equal to 180 for example, 
            // then LEADTOOLS will automatically know that the 
            // proper width is 200 and load the image at the (200X150) resolution.         
            codecs.options.jbig.load.resolution = LeadSizeHelper.create(180, 0);
            var sizes = new Array();

            sizes[0] = LeadSizeHelper.create(800, 600);
            sizes[1] = LeadSizeHelper.create(400, 300);
            sizes[2] = LeadSizeHelper.create(200, 150);
            codecs.options.save.setResolutions(sizes);

            var destFileName = "Image1_test.jbg";
            return Tools.AppLocalFolder().createFileAsync(destFileName)
         })
         .then(function (saveFile) {
            return codecs.saveAsync(image, LeadStreamFactory.create(saveFile), RasterImageFormat.jbig, 8)
         })
         .then(function () {

            srcFileName = "Image1_test.jbg";
            return Tools.AppLocalFolder().getFileAsync(srcFileName)
         })
         .then(function (loadFile) {
            return codecs.loadAsync(LeadStreamFactory.create(loadFile))
         })
         .then(function (img) {
            image = img;

            destFileName = "jbg.bmp";
            return Tools.AppLocalFolder().createFileAsync(destFileName)
         })
         .then(function (saveFile) {
            return codecs.saveAsync(image, LeadStreamFactory.create(saveFile), RasterImageFormat.bmp, 1)
         })
         .then(function () {
            // Clean up
            image.close();
            codecs.close();
         });
      }
   }
}

[TestMethod]
public async Task CodecsJbigOptionsExample()
{
   RasterCodecs codecs = new RasterCodecs();
   // Load the image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   RasterImage image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   // Ex: If the file contains the image 
   // at the following dimensions: 800X600, 
   // 400X 300 and 200X150 and the user requests 
   // an image with width equal to 180 for example, 
   // then LEADTOOLS will automatically know that the 
   // proper width is 200 and load the image at the (200X150) resolution.         
   codecs.Options.Jbig.Load.Resolution = LeadSizeHelper.Create(180, 0);
   LeadSize[] sizes = new LeadSize[3];
   sizes[0] = LeadSizeHelper.Create(800, 600);
   sizes[1] = LeadSizeHelper.Create(400, 300);
   sizes[2] = LeadSizeHelper.Create(200, 150);
   codecs.Options.Save.SetResolutions(sizes);

   string destFileName = @"Image1_test.jbg";
   StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Jbig, 8);

   srcFileName = @"Image1_test.jbg";
   loadFile = await Tools.AppLocalFolder.GetFileAsync(srcFileName);
   image = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   destFileName = @"jbg.bmp";
   saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName);
   await codecs.SaveAsync(image, LeadStreamFactory.Create(saveFile), RasterImageFormat.Bmp, 1);

   // Clean up
   image.Dispose();
   codecs.Dispose();
}

public void CodecsJbigOptionsExample(Stream inStream, Stream outStreamJbig, Stream outStreamBmp)
{
   RasterCodecs codecs = new RasterCodecs();
   RasterImage srcImage = codecs.Load(inStream);

   // Ex: If the file contains the image 
   // at the following dimensions: 800X600, 
   // 400X 300 and 200X150 and the user requests 
   // an image with width equal to 180 for example, 
   // then LEADTOOLS will automatically know that the 
   // proper width is 200 and load the image at the (200X150) resolution.         
   codecs.Options.Jbig.Load.Resolution = new LeadSize(180, 0);
   LeadSize[] sizes = new LeadSize[3];
   sizes[0] = new LeadSize(800, 600);
   sizes[1] = new LeadSize(400, 300);
   sizes[2] = new LeadSize(200, 150);
   codecs.Options.Save.SetResolutions(sizes);
   codecs.Save(srcImage, outStreamJbig, RasterImageFormat.Jbig, 8);

   srcImage = codecs.Load(outStreamJbig);
   codecs.Save(srcImage, outStreamBmp, RasterImageFormat.Bmp, 1);

   // Clean up
   srcImage.Dispose();
}

Public Sub CodecsJbigOptionsExample(ByVal inStream As Stream, ByVal outStreamJbig As Stream, ByVal outStreamBmp As Stream)
   Dim codecs As RasterCodecs = New RasterCodecs()
   Dim srcImage As RasterImage = codecs.Load(inStream)

   ' Ex: If the file contains the image 
   ' at the following dimensions: 800X600, 
   ' 400X 300 and 200X150 and the user requests 
   ' an image with width equal to 180 for example, 
   ' then LEADTOOLS will automatically know that the 
   ' proper width is 200 and load the image at the (200X150) resolution.         
   codecs.Options.Jbig.Load.Resolution = New LeadSize(180, 0)
   Dim sizes As LeadSize() = New LeadSize(2){}
   sizes(0) = New LeadSize(800, 600)
   sizes(1) = New LeadSize(400, 300)
   sizes(2) = New LeadSize(200, 150)
   codecs.Options.Save.SetResolutions(sizes)
   codecs.Save(srcImage, outStreamJbig, RasterImageFormat.Jbig, 8)

   srcImage = codecs.Load(outStreamJbig)
   codecs.Save(srcImage, outStreamBmp, RasterImageFormat.Bmp, 1)

   ' Clean up
   srcImage.Dispose()
End Sub

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

CodecsJbigOptions Members
Leadtools.Codecs Namespace
Implementing JBIG Features