RasterColorSpace Class

C#
Visual Basic
WinRT C#
Java
Objective-C
WinRT JavaScript
C++

public static class RasterColorSpace

'Declaration

Public MustInherit NotInheritable Class RasterColorSpace

'Usage

Dim instance As RasterColorSpace

public sealed static class RasterColorSpace

function Leadtools.RasterColorSpace()

public ref class RasterColorSpace abstract sealed

This example will load an image, resizes each line then saves the resized image back to disk.

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

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Imports Leadtools
Imports Leadtools.Codecs

      
  Public Sub RasterColorSpaceExample()
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' load an image
   Dim fileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
   Dim image As RasterImage = codecs.Load(fileName)

   ' Allocate the input buffer for 24-bit RGB data 
   Dim inBuffer As Byte() = New Byte(image.Width * 3 - 1) {}

   ' Allocate the output buffer for 32-bit CMYK data
   Dim outBuffer As Byte() = New Byte(image.Width * 4 - 1) {}

   ' Get one row of data from the bitmap
   image.Access()
   image.GetRow(0, inBuffer, 0, image.BytesPerLine)
   image.Release()

   ' Convert the data from RGB in inBuffer to CMYK in outBuffer
   RasterColorSpace.Convert8(inBuffer, 0, outBuffer, 0, image.Width, RasterColorSpaceFormat8.Rgb, RasterColorSpaceFormat8.Cmyk)

   ' Cleanup
   image.Dispose()
End Sub

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

using Leadtools;
using Leadtools.Codecs;

      
public void RasterColorSpaceExample()
{
   string fileName = Path.Combine(ImagesPath.Path, "Image1.cmp");
   using (RasterCodecs codecs = new RasterCodecs())
   {
      // load an image
      using (RasterImage image = codecs.Load(fileName))
      {
         // Allocate the input buffer for 24-bit RGB data 
         byte[] inBuffer = new byte[image.Width * 3];
         Assert.IsTrue(inBuffer.Length == image.BytesPerLine);
         // Allocate the output buffer for 32-bit CMYK data
         byte[] outBuffer = new byte[image.Width * 4];

         // Get one row of data from the bitmap
         image.Access();
         image.GetRow(0, inBuffer, 0, image.BytesPerLine);
         image.Release();

         // Convert the data from RGB in inBuffer to CMYK in outBuffer
         RasterColorSpace.Convert8(inBuffer, 0, outBuffer, 0, image.Width, RasterColorSpaceFormat8.Rgb, RasterColorSpaceFormat8.Cmyk);
      }
   }
}

using Leadtools;
using Leadtools.Codecs;

      
public async Task RasterColorSpaceExample()
{
   RasterCodecs codecs = new RasterCodecs();
   // Load the source image
   string srcFileName = @"Assets\Image1.cmp";
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   ILeadStream loadStream = LeadStreamFactory.Create(loadFile);
   RasterImage image = await codecs.LoadAsync(loadStream, 24, CodecsLoadByteOrder.Bgr, 1, 1);
   Assert.IsTrue(image.BitsPerPixel == 24);

   // Allocate the input buffer for 24-bit RGB data 
   Windows.Storage.Streams.Buffer inBuffer = new Windows.Storage.Streams.Buffer((uint)image.Width * 3);

   // Allocate the output buffer for 32-bit CMYK data
   Windows.Storage.Streams.Buffer outBuffer = new Windows.Storage.Streams.Buffer((uint)image.Width * 4);

   // Get one row of data from the bitmap
   image.AccessData();
   image.GetRow(0, inBuffer, 0, image.BytesPerLine);
   image.ReleaseData();

   // Convert the data from RGB in inBuffer to CMYK in outBuffer
   RasterColorSpace.Convert8(inBuffer, 0, outBuffer, 0, image.Width, RasterColorSpaceFormat8.Rgb, RasterColorSpaceFormat8.Cmyk);

   // Cleanup
   image.Dispose();
}

using Leadtools;
using Leadtools.Codecs;
using Leadtools.Examples;

public void RasterColorSpaceExample(RasterImage image)
{
   // Allocate the input buffer for 24-bit RGB data 
   byte[] inBuffer = new byte[image.Width * 3];
   // Allocate the output buffer for 32-bit CMYK data
   byte[] outBuffer = new byte[image.Width * 4];

   // Get one row of data from the bitmap
   image.Access();
   image.GetRow(0, inBuffer, 0, image.BytesPerLine);
   image.Release();

   // Convert the data from RGB in inBuffer to CMYK in outBuffer
   RasterColorSpace.Convert8(inBuffer, 0, outBuffer, 0, image.Width, RasterColorSpaceFormat8.Rgb, RasterColorSpaceFormat8.Cmyk);

   // Cleanup
   image.Dispose();
}

Imports Leadtools
Imports Leadtools.Codecs

Public Sub RasterColorSpaceExample(ByVal image As RasterImage)
   ' Allocate the input buffer for 24-bit RGB data 
   Dim inBuffer As Byte() = New Byte(image.Width * 3 - 1){}
   ' Allocate the output buffer for 32-bit CMYK data
   Dim outBuffer As Byte() = New Byte(image.Width * 4 - 1){}

   ' Get one row of data from the bitmap
   image.Access()
   image.GetRow(0, inBuffer, 0, image.BytesPerLine)
   image.Release()

   ' Convert the data from RGB in inBuffer to CMYK in outBuffer
   RasterColorSpace.Convert8(inBuffer, 0, outBuffer, 0, image.Width, RasterColorSpaceFormat8.Rgb, RasterColorSpaceFormat8.Cmyk)

   ' Cleanup
   image.Dispose()
End Sub

Target Platforms

Reference

RasterColorSpace Members
Leadtools Namespace