IsPalette8Alpha Property

Summary

Determines whether the file contains 8-bit palettized image data + alpha.

Syntax

C++/CLI

Java

Python

public bool IsPalette8Alpha { get; }

public boolean IsPalette8Alpha()

public: 
property bool IsPalette8Alpha { 
   bool get(); 
}

IsPalette8Alpha # get  (CodecsImageInfo)

Property Value

true if the file contains 8-bit palettized image data + alpha; false, otherwise. The default value is false.

Example

using Leadtools; 
using Leadtools.Codecs; 
 
 
 
public void CodecsImageInfoIsGray8AlphaExample() 
{ 
   string fileName = Path.Combine(LEAD_VARS.ImagesDir, "cannon_noisy.png"); 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      CodecsImageInfo info = codecs.GetInformation(fileName, true); 
      Debug.WriteLine(string.Format("IsPalette8Alpha: {0}", info.IsPalette8Alpha)); 
      if (info.IsGray8Alpha) 
      { 
         /* These files might get loaded as 32-bit by default.  
             * You can load them as 8-bit, alpha information is not needed.  
             */ 
         using (RasterImage image = codecs.Load(fileName, 8, CodecsLoadByteOrder.Gray, 1, 1)) 
         { 
            /* Do something with the bitmap */ 
            Debug.WriteLine("BitsPerPixel = " + image.BitsPerPixel); 
         } 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}