RasterColorSpace Class

Summary

Provides support for converting buffered image data from one color space to another.

Syntax

C++

public static class RasterColorSpace

Public MustInherit NotInheritable Class RasterColorSpace

public ref class RasterColorSpace abstract sealed

Example

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

using Leadtools; 
using Leadtools.Codecs; 
using LeadtoolsExamples.Common; 
 
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); 
      } 
   } 
}

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

c#[Silverlight C# Example] 
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(); 
} 
vb[Silverlight VB Example] 
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

Requirements

Target Platforms

Reference

RasterColorSpace Members

Leadtools Namespace

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Help Version 20.0.2020.4.2

Leadtools Assembly

Introduction

Getting Started

Namespaces

Leadtools Namespace

Leadtools.ImageProcessing Namespace

Assemblies