IsBigTiff Property

Summary

Determines whether the image file is BigTIFF.

Syntax

Objective-C

C++/CLI

Java

Python

public bool IsBigTiff {get;}

@property (nonatomic, assign, readonly) BOOL isBigTiff;

public boolean isBigTiff()

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

IsBigTiff # get  (CodecsTiffImageInfo)

Property Value

true if the file is BigTIFF, false if the file is TIFF. The default value is false.

Remarks

Use this to determine whether the file is BigTIFF.

Example

using Leadtools; 
using Leadtools.Codecs; 
 
using Leadtools.ImageProcessing.Core; 
 
public void CodecsTiffOptionsExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "OCR1.TIF"); 
 
   // Get all Information about the Tiff file that you want to load. 
   CodecsImageInfo imageInfo = codecs.GetInformation(srcFileName, true); 
 
   if (imageInfo.Tiff.IsImageFileDirectoryOffsetValid) 
   { 
      codecs.Options.Tiff.Load.ImageFileDirectoryOffset = imageInfo.Tiff.ImageFileDirectoryOffset; 
      codecs.Options.Tiff.Save.ImageFileDirectoryOffset = imageInfo.Tiff.ImageFileDirectoryOffset; 
   } 
 
   // CodecsTiffOptions & CodecsTiffLoadOptions reference 
   codecs.Options.Tiff.Load.UseImageFileDirectoryOffset = imageInfo.Tiff.IsImageFileDirectoryOffsetValid; 
   codecs.Options.Tiff.Save.UseImageFileDirectoryOffset = imageInfo.Tiff.IsImageFileDirectoryOffsetValid; 
 
   codecs.Options.Tiff.Load.IgnorePhotometricInterpretation = true; 
   codecs.Options.Tiff.Load.IgnoreViewPerspective = false; 
   codecs.Options.Tiff.Load.UseFastConversion = false; 
 
   RasterImage image = codecs.Load(srcFileName); 
 
   codecs.Options.Tiff.Save.NoPalette = imageInfo.Tiff.HasNoPalette; 
   codecs.Options.Tiff.Save.PreservePalette = imageInfo.Tiff.HasNoPalette; 
 
   // Set the tiffSave options 
   // CodecsTiffSaveOptions reference 
   codecs.Options.Tiff.Save.NoPageNumber = false; 
   codecs.Options.Tiff.Save.NoSubFileType = false; 
   codecs.Options.Tiff.Save.UsePhotometricInterpretation = true; 
   codecs.Options.Tiff.Save.PhotometricInterpretation = CodecsTiffPhotometricInterpretation.YcbCr; 
   codecs.Options.Tiff.Save.UseTileSize = true; 
   codecs.Options.Tiff.Save.TileHeight = 200; 
   codecs.Options.Tiff.Save.TileWidth = 200; 
   codecs.Options.Tiff.Save.NoLzwAutoClear = false; 
   codecs.Options.Tiff.Save.SavePlanar = false; 
   codecs.Options.Tiff.Save.UsePredictor = false; 
 
   // make the output file have the same format as the input, so Tiff->Tiff, BigTiff->BigTiff 
   codecs.Options.Tiff.Save.BigTiff = imageInfo.Tiff.IsBigTiff; 
 
   //saving the image 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "testtiff1.TIF"), RasterImageFormat.Tif, image.BitsPerPixel, 1, image.PageCount, 1, CodecsSavePageMode.Overwrite); 
 
   //change some tiffsave options. 
   codecs.Options.Tiff.Save.NoPageNumber = true; 
   codecs.Options.Tiff.Save.NoSubFileType = true; 
   codecs.Options.Tiff.Save.UsePhotometricInterpretation = false; 
   codecs.Options.Tiff.Save.UseTileSize = false; 
   codecs.Options.Tiff.Save.NoPalette = false; 
   codecs.Options.Tiff.Save.PreservePalette = true; 
   codecs.Options.Tiff.Save.PhotometricInterpretation = CodecsTiffPhotometricInterpretation.Palette; 
 
   //save the image with different name. 
   codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "testtiff2.TIF"), RasterImageFormat.CcittGroup4, image.BitsPerPixel, 1, image.PageCount, 1, CodecsSavePageMode.Overwrite); 
 
   // Clean up 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

CodecsTiffImageInfo Class

CodecsTiffImageInfo Members

TIFF (Tagged Image File Format)

Loading and Saving Large TIFF/BigTIFF Files

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Help Version 22.0.2023.5.5

Leadtools.Codecs Assembly

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