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LEADTOOLS Color Conversion (Leadtools.ColorConversion assembly)
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Startup Method






Leadtools.ColorConversion Namespace > RasterColorConverterEngine Class : Startup Method
Initializes the required data to start the color conversion toolkit.
Syntax
public static void Startup()
'Declaration
 
Public Shared Sub Startup() 
'Usage
 
RasterColorConverterEngine.Startup()

            

        

            

            

            

        

            

            
public:
static void Startup(); 

            

        

            

        
            
            
            

            
            
            
            
Remarks
This static method must be called before calling any other ColorConversion methods. This usually occurs at the start of your application.

          
            
Example
This example will convert an image to CMYK color space and save the converted image to disk.

             
    

            
            

            Copy Code
                
            

            

    

     

            
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ColorConversion

<TestMethod()> _
Public Sub StartupExample()
   ' Initialize the RasterCodecs class 
   Dim codecs As New RasterCodecs()
   ' StartUp the ColorConversion. 
   RasterColorConverterEngine.Startup()

   ' The input file name
   Dim inputFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")

   ' load the input image as Bgr. 
   Dim bgrImage As RasterImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1)

   ' Image buffer array 
   'Dim bgrBuffer As Byte() = New Byte(bgrImage.BytesPerLine * bgrImage.Height - 1) {}
   Dim bgrBuffer(bgrImage.BytesPerLine * bgrImage.Height) As Byte

   ' get image buffer 
   For i As Integer = 0 To bgrImage.Height - 1
      bgrImage.GetRow(i, bgrBuffer, (i * bgrImage.BytesPerLine), bgrImage.BytesPerLine)
   Next

   ' Initialize a new Converter object 
   Dim converter As New RasterColorConverterEngine()

   ' Cmyk buffer array
   Dim cmykBuffer As Byte() = New Byte(bgrImage.Height * bgrImage.Width * 4 - 1) {}

   Try
      ' Start the color conversion 
      converter.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, Nothing)

      ' convert the image buffer  
      converter.Convert(bgrBuffer, _
          0, _
          cmykBuffer, _
          0, _
          bgrImage.Width, _
          bgrImage.Height, _
          CInt(bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8))), _
          0)

      ' stop the conversion 
      converter.[Stop]()

      ' Initialize an image to hold the converted buffer. 
      Dim cmykImage As New RasterImage(RasterMemoryFlags.Conventional, bgrImage.Width, bgrImage.Height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, _
       Nothing, IntPtr.Zero, 0)

      ' Start the color conversion 
      converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Bgr, Nothing)

      converter.ConvertToImage(cmykBuffer, _
          0, _
          cmykImage, _
          bgrImage.Width, _
          bgrImage.Height, _
          0, _
          CInt(bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8))))

      ' stop the conversion 
      converter.Stop()

      ' the output File Name. 
      Dim outputFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "ResultImage.bmp")

      ' Save the result image. 
      codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24)

      ' dispose of the used images 
      bgrImage.Dispose()
      cmykImage.Dispose()
   Catch ex As Exception
      MessageBox.Show(ex.ToString())
   End Try

   ' Shutdown the ColorConversion. 
   RasterColorConverterEngine.Shutdown()
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;
using Leadtools.ColorConversion;

[TestMethod]
public void StartupExample()
{
    // Initialize the RasterCodecs class 
    RasterCodecs codecs = new RasterCodecs();
    // StartUp the ColorConversion. 
    RasterColorConverterEngine.Startup();

    // The input file name 
    string inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp");

    // load the input image as Bgr. 
    RasterImage bgrImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1);

    // Image buffer array 
    byte[] bgrBuffer = new byte[bgrImage.BytesPerLine * bgrImage.Height];

    // get image buffer 
    for (int i = 0; i < bgrImage.Height; i++)
        bgrImage.GetRow(i, bgrBuffer, i * bgrImage.BytesPerLine, bgrImage.BytesPerLine);

    // Initialize a new Converter object 
    RasterColorConverterEngine converter = new RasterColorConverterEngine();

    byte[] cmykBuffer = new byte[bgrImage.Height * bgrImage.Width * 4];

    try
    {
        // Start the color conversion 
        converter.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, null);

        // convert the image buffer  
        converter.Convert(bgrBuffer, // input buffer 
           0, // offset from the begining of the source buffer 
           cmykBuffer, // output buffer 
           0, // offset from the begining of the destination buffer 
           bgrImage.Width, // pixels width 
           bgrImage.Height, // pixels height 
           bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)), 
           0); // 0 bytes align

        // stop the conversion 
        converter.Stop();

        // Initialize an image to hold the converted buffer. 
        RasterImage cmykImage = new RasterImage(RasterMemoryFlags.Conventional, bgrImage.Width, bgrImage.Height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, null, IntPtr.Zero, 0);

        // Start the color conversion 
        converter.Start(ConversionColorFormat.Cmyk, ConversionColorFormat.Bgr, null);

        // convert the image buffer 
        converter.ConvertToImage(cmykBuffer, // converted buffer 
           0,                // offset from the begining of the source buffer 
           cmykImage,        // image to be save 
           bgrImage.Width,   // pixels width 
           bgrImage.Height,  // pixels height 
           0,                // 0 bytes align 
           bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)));

        // stop the conversion 
        converter.Stop();

        // the output File Name. 
        string outputFileName = Path.Combine(LEAD_VARS.ImagesDir, "ResultImage.bmp");

        // Save the result image. 
        codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24);

        // dispose of the used images 
        bgrImage.Dispose();
        cmykImage.Dispose();
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.ToString());
    }

    // Shutdown the ColorConversion. 
    RasterColorConverterEngine.Shutdown();
}

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

            

   

     

            
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ColorConversion;

public void StartupExample()
{
   // Initialize the RasterCodecs class 
   RasterCodecs codecs = new RasterCodecs();

   // StartUp the ColorConversion. 
   RasterColorConverterEngine.Startup();

   // The input file name 
   string inputFileName = LeadtoolsExamples.Common.ImagesPath.Path + "image1.cmp";

   // load the input image as Bgr. 
   RasterImage bgrImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1);

   // Image buffer array 
   byte[] bgrBuffer = new byte[bgrImage.BytesPerLine * bgrImage.Height];

   // get image buffer 
   for (int i = 0; i < bgrImage.Height; i++)
      bgrImage.GetRow(i, bgrBuffer, i * bgrImage.BytesPerLine, bgrImage.BytesPerLine);

   byte[] cmykBuffer = new byte[bgrImage.Height * bgrImage.Width * 4];

   try
   {
      // convert the image buffer  
      RasterColorConverterEngine.ConvertDirect(ConversionColorFormat.Bgr,
         ConversionColorFormat.Cmyk, bgrBuffer, // input buffer 
         0, // offset from the begining of the source buffer 
         cmykBuffer, // output buffer 
         0, // offset from the begining of the destination buffer 
         bgrImage.Width, // pixels width 
         bgrImage.Height, // pixels height 
         bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)),
         0); // 0 bytes align

      // Initialize an image to hold the converted buffer. 
      RasterImage cmykImage = new RasterImage(RasterMemoryFlags.Conventional, bgrImage.Width, bgrImage.Height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, null, null, 0);

      // convert the image buffer 
      RasterColorConverterEngine.ConvertDirectToImage (ConversionColorFormat.Cmyk,
         ConversionColorFormat.Bgr,
         cmykBuffer, // converted buffer 
         0,                // offset from the begining of the source buffer 
         cmykImage,        // image to be save 
         bgrImage.Width,   // pixels width 
         bgrImage.Height,  // pixels height 
         0,                // 0 bytes align 
         bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)));

      // the output File Name. 
      string outputFileName = LeadtoolsExamples.Common.ImagesPath.Path + "ResultImage.bmp";

      // Save the result image. 
      codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24);

      // dispose of the used images 
      bgrImage.Dispose();
      cmykImage.Dispose();
   }
   catch (Exception)
   {
   }

   // Shutdown the ColorConversion. 
   RasterColorConverterEngine.Shutdown();
}

            

   

     

            
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ColorConversion

<TestMethod> _
Public Sub StartupExample()
   ' Initialize the RasterCodecs class 
   Dim codecs As RasterCodecs = New RasterCodecs()
   ' StartUp the ColorConversion. 
   RasterColorConverterEngine.Startup()

   ' The input file name 
   Dim inputFileName As String = LeadtoolsExamples.Common.ImagesPath.Path & "image1.cmp"

   ' load the input image as Bgr. 
   Dim bgrImage As RasterImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1)

   ' Image buffer array 
   Dim bgrBuffer As Byte() = New Byte(bgrImage.BytesPerLine * bgrImage.Height - 1){}

   ' get image buffer 
   Dim i As Integer = 0
   Do While i < bgrImage.Height
      bgrImage.GetRow(i, bgrBuffer, i * bgrImage.BytesPerLine, bgrImage.BytesPerLine)
      i += 1
   Loop

   Dim cmykBuffer As Byte() = New Byte(bgrImage.Height * bgrImage.Width * 4 - 1){}

   Try
      ' convert the image buffer  
      RasterColorConverterEngine.ConvertDirect(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, bgrBuffer, 0, cmykBuffer, 0, bgrImage.Width, bgrImage.Height, bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel _
            / 8)), 0) ' 0 bytes align

      ' Initialize an image to hold the converted buffer. 
      Dim cmykImage As RasterImage = New RasterImage(RasterMemoryFlags.Conventional, bgrImage.Width, bgrImage.Height, 24, RasterByteOrder.Bgr, RasterViewPerspective.TopLeft, Nothing, Nothing, 0)

      ' convert the image buffer 
      RasterColorConverterEngine.ConvertDirectToImage (ConversionColorFormat.Cmyk, ConversionColorFormat.Bgr, cmykBuffer, 0, cmykImage, bgrImage.Width, bgrImage.Height, 0, bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)))

      ' the output File Name. 
      Dim outputFileName As String = LeadtoolsExamples.Common.ImagesPath.Path & "ResultImage.bmp"

      ' Save the result image. 
      codecs.Save(cmykImage, outputFileName, RasterImageFormat.Bmp, 24)

      ' dispose of the used images 
      bgrImage.Dispose()
      cmykImage.Dispose()
   Catch e1 As Exception
   End Try

   ' Shutdown the ColorConversion. 
   RasterColorConverterEngine.Shutdown()
End Sub

            

   

      
	
      
	
    

            
            
Requirements
Target Platforms

            
            
See Also
Reference
RasterColorConverterEngine Class

RasterColorConverterEngine Members

Shutdown Method




        
    

	
    

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