Leadtools.Windows.Media Namespace : RasterImageConverter Class |
public static class RasterImageConverter
'Declaration Public MustInherit NotInheritable Class RasterImageConverter
'Usage Dim instance As RasterImageConverter
public sealed static class RasterImageConverter
function Leadtools.Windows.Media.RasterImageConverter()
public ref class RasterImageConverter abstract sealed
The LEADTOOLS RasterImage class provides platform independent representation of an image. It serves as a working area for image manipulation and conversion. LEADTOOLS functions use this class for accessing the image in memory and for maintaining the characteristics of the image. This class contains the functionality needed to convert a LEADTOOLS Leadtools.RasterImage to and from a Windows Presentation Foundation (WPF) or Silverlight image objects.
The RasterImageConverter class contains the following functionality:
Method | Description |
---|---|
ConvertToSource |
Converts a LEADTOOLS Leadtools.RasterImage to WPF/Silverlight System.Windows.Media.ImageSource |
ConvertFromSource |
Converts a WPF/Silverlight System.Windows.Media.ImageSource to LEADTOOLS Leadtools.RasterImage |
TestCompatible |
Utility methods for testing whether a LEADTOOLS Leadtools.RasterImage is WPF/Silverlight compatible |
For more information refer to RasterImage and WPF/Silverlight.
Public Sub RasterImageConverterExample() Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp") Dim destFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.jpg") Dim destFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WPfFlipped.jpg") ' Use LEADTOOLS to convert the source image to a format that can be loaded with WPF Using codecs As New RasterCodecs() codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, Nothing) End Using ' Load the source image using WPF Dim bitmap As New BitmapImage() bitmap.BeginInit() bitmap.UriSource = New Uri(destFileName1, UriKind.Absolute) bitmap.EndInit() Console.WriteLine("Source WPF image is loaded, pixel format is {0}", bitmap.Format) ' Convert the image to LEADTOOLS RasterImage object Dim source As BitmapSource Using raster As RasterImage = RasterImageConverter.ConvertFromSource(bitmap, ConvertFromSourceOptions.None) Console.WriteLine("Converted to RasterImage, bits/pixel is {0} and order is {1}", raster.BitsPerPixel, raster.Order) ' Perform image processing on the raster image using LEADTOOLS Dim cmd As New FlipCommand(False) cmd.Run(raster) ' Convert the image back to WPF using default options source = DirectCast(RasterImageConverter.ConvertToSource(raster, ConvertToSourceOptions.None), BitmapSource) End Using Console.WriteLine("Converted back WPF, pixel format is {0}", source.Format) ' Save the image using WPF Using fs As FileStream = File.Create(destFileName2) Dim encoder As New JpegBitmapEncoder() encoder.QualityLevel = 30 encoder.Frames.Add(BitmapFrame.Create(source)) encoder.Save(fs) End Using End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class
public void RasterImageConverterExample() { string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir,"Image1.jpg"); string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WPfFlipped.jpg"); // Use LEADTOOLS to convert the source image to a format that can be loaded with WPF using(RasterCodecs codecs = new RasterCodecs()) { codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, null); } // Load the source image using WPF BitmapImage bitmap = new BitmapImage(); bitmap.BeginInit(); bitmap.UriSource = new Uri(destFileName1, UriKind.Absolute); bitmap.EndInit(); Console.WriteLine("Source WPF image is loaded, pixel format is {0}", bitmap.Format); // Convert the image to LEADTOOLS RasterImage object BitmapSource source; using(RasterImage raster = RasterImageConverter.ConvertFromSource(bitmap, ConvertFromSourceOptions.None)) { Console.WriteLine("Converted to RasterImage, bits/pixel is {0} and order is {1}", raster.BitsPerPixel, raster.Order); // Perform image processing on the raster image using LEADTOOLS FlipCommand cmd = new FlipCommand(false); cmd.Run(raster); // Convert the image back to WPF using default options source = RasterImageConverter.ConvertToSource(raster, ConvertToSourceOptions.None) as BitmapSource; } Console.WriteLine("Converted back WPF, pixel format is {0}", source.Format); // Save the image using WPF using(FileStream fs = File.Create(destFileName2)) { JpegBitmapEncoder encoder = new JpegBitmapEncoder(); encoder.QualityLevel = 30; encoder.Frames.Add(BitmapFrame.Create(source)); encoder.Save(fs); } } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; }
public void RasterImageConverterExample() { string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp"; string destFileName1 = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.jpg"; // Use LEADTOOLS to convert the source image to a format that can be loaded with WPF RasterCodecs codecs = new RasterCodecs(); codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, null); }
<TestMethod> _ Public Sub RasterImageConverterExample() Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path & "Image1.cmp" Dim destFileName1 As String = LeadtoolsExamples.Common.ImagesPath.Path & "Image1.jpg" ' Use LEADTOOLS to convert the source image to a format that can be loaded with WPF Dim codecs As RasterCodecs = New RasterCodecs() codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, Nothing) End Sub
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