Startup Method

Summary

Initializes the required data to start the color conversion toolkit.

Syntax

C++/CLI

Python

public static void Startup()

public: 
static void Startup();

def Startup(self):

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.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ColorConversion; 
 
using Leadtools.ImageProcessing; 
 
public void StartupExample() 
{ 
   // StartUp the ColorConversion.  
   RasterColorConverterEngine.Startup(); 
 
   // Input file name  
   string inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp"); 
 
   // Load the input image as Bgr 
   using (RasterCodecs codecs = new RasterCodecs()) 
   using (RasterImage bgrImage = codecs.Load(inputFileName, 24, CodecsLoadByteOrder.Bgr, 1, 1)) 
   { 
      // BGR buffer  
      byte[] bgrBuffer = new byte[bgrImage.BytesPerLine * bgrImage.Height]; 
      bgrImage.Access(); 
      bgrImage.GetRow(0, bgrBuffer, 0, bgrImage.BytesPerLine * bgrImage.Height); 
      bgrImage.Release(); 
 
      // CMYK buffer 
      byte[] cmykBuffer = new byte[bgrImage.Height * bgrImage.Width * 4]; 
 
      // Start the color conversion  
      RasterColorConverterEngine rasterColorConverterEngine = new RasterColorConverterEngine(); 
      rasterColorConverterEngine.Start(ConversionColorFormat.Bgr, ConversionColorFormat.Cmyk, null); 
      rasterColorConverterEngine.Convert(bgrBuffer, // input buffer  
         0, // offset from the beginning of the source buffer  
         cmykBuffer, // output buffer  
         0, // offset from the beginning of the destination buffer  
         bgrImage.Width, // pixels width  
         bgrImage.Height, // pixels height  
         bgrImage.BytesPerLine - (bgrImage.Width * (bgrImage.BitsPerPixel / 8)), // Scanline alignment for input buffer 
         0); // Scanline alignment for output buffer 
      rasterColorConverterEngine.Stop(); 
   } 
 
   // Shutdown the ColorConversion.  
   RasterColorConverterEngine.Shutdown(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

RasterColorConverterEngine Class

RasterColorConverterEngine Members

Shutdown Method

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Help Version 23.0.2024.2.29

Leadtools.ColorConversion Assembly

Introduction

Getting Started

Namespaces

Leadtools.ColorConversion Namespace

Assemblies