FromDoubleToU8Fixed8Number Method

Summary

Converts a fractional number into a value that is consistent with the ICC specification format: u8Fixed8Number.

Syntax

C++/CLI

Python

public static ushort FromDoubleToU8Fixed8Number( 
   double number 
)

public: 
static ushort FromDoubleToU8Fixed8Number(  
   double number 
)

def FromDoubleToU8Fixed8Number(self,number):

Parameters

number
A fractional value.

Return Value

A value that is consistent with the ICC specification format u8Fixed8Number.

Remarks

The ICC specification format (u8FixedU8Number) consist of a 2-bytes value that have its first bytes as the fixed part of the number, and the second bytes as the fractional part of the number.

Example

using Leadtools; 
using Leadtools.ColorConversion; 
 
using Leadtools.Codecs; 
 
public string outputIccFile = Path.Combine(LEAD_VARS.ImagesDir, "ColorConversion", "GetIccProfileTag", "IccCurveTagType.icc"); 
 
public void IccCurveTagTypeExample() 
{ 
   // Load an ICC profile 
   string fileName = Path.Combine(LEAD_VARS.ImagesDir, "ColorConversion", "InputProfile.icc"); 
   IccProfileExtended iccProfile = new IccProfileExtended(fileName); 
 
   // The curve data consists of domain and range values 
   // If there is 1 value, the curve data should be in the u8Fixed8Number format 
   // If there is more than 1 value, the type should be uInt16Number (ushort) 
   // This example uses 1 value 
   // For more information about domain and range values refer to ICC.1:2004-10 specification page 39. 
   ushort[] curveData = new ushort[1]; 
   curveData[0] = IccTools.FromDoubleToU8Fixed8Number((double) 1.5); 
 
   // Create the new iccCurveType 
   IccCurve iccCurve = new IccCurve(curveData); 
 
   // Define the tag type 
   IccCurveTagType iccCurveTagType = new IccCurveTagType(iccCurve); 
 
   // Add the new tag to the ICC profile 
   iccProfile.AddTag(iccCurveTagType, IccTag.GrayTRCTag, IccTagTypeBase.CurveTypeSignature); 
 
   // Generate the new profile ID 
   iccProfile.GenerateProfileId(); 
 
   // Update the ICC array with the new changes 
   iccProfile.UpdateDataArray(); 
 
   // Write the ICC profile into a new file 
   iccProfile.GenerateIccFile(outputIccFile); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

IccTools Class

IccTools Members

CreateTagType Method

FromDoubleTo2bFixed2bNumber Method

From2bFixed2bNumberToDouble Method

FromU8Fixed8NumberToDouble Method

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Help Version 23.0.2024.10.29