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UseImageFileDirectoryOffset Property

Summary
Enables or disables using the ImageFileDirectory (IFD) offset.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public bool UseImageFileDirectoryOffset { get; set; } 
@property (nonatomic, assign, getter=usesImageFileDirectoryOffset) BOOL useImageFileDirectoryOffset; 
public boolean getUseImageFileDirectoryOffset() 
public void setUseImageFileDirectoryOffset(boolean value) 
public: 
property bool UseImageFileDirectoryOffset { 
   bool get(); 
   void set (    bool ); 
} 
UseImageFileDirectoryOffset # get and set (CodecsTiffLoadOptions) 

Property Value

Value Description
true To use the ImageFileDirectoryOffset when loading TIFF images.
false To not use the ImageFileDirectoryOffset when loading TIFF images. The default value is false.
Remarks

Some restrictions apply to this function if you use an IFD to indicate to which page to write a comment, tag, metadata, or GeoKey. See the Loading And Saving Large TIFF/BigTIFF Files topic for more information.

Example
C#
Java
using Leadtools; 
using Leadtools.Codecs; 
 
using Leadtools.ImageProcessing.Core; 
using Leadtools.Pdf; 
 
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:\LEADTOOLS23\Resources\Images"; 
} 
 
import java.io.File; 
import java.io.IOException; 
import java.net.URI; 
import java.net.URISyntaxException; 
import java.nio.file.Paths; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.imageprocessing.core.MinMaxBitsCommand; 
 
 
public void codecsTiffOptionsExample() { 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   RasterCodecs codecs = new RasterCodecs(); 
   String srcFileName = combine(LEAD_VARS_IMAGES_DIR, "ocr1.tif"); 
 
   // Get all Information about the Tiff file that you want to load. 
   CodecsImageInfo imageInfo = codecs.getInformation(srcFileName, true); 
 
   if (imageInfo.getTiff().isImageFileDirectoryOffsetValid()) { 
      codecs.getOptions().getTiff().getLoad() 
            .setImageFileDirectoryOffset(imageInfo.getTiff().getImageFileDirectoryOffset()); 
      codecs.getOptions().getTiff().getSave() 
            .setImageFileDirectoryOffset(imageInfo.getTiff().getImageFileDirectoryOffset()); 
   } 
 
   // CodecsTiffOptions & CodecsTiffLoadOptions reference 
   codecs.getOptions().getTiff().getLoad() 
         .setUseImageFileDirectoryOffset(imageInfo.getTiff().isImageFileDirectoryOffsetValid()); 
   codecs.getOptions().getTiff().getSave() 
         .setUseImageFileDirectoryOffset(imageInfo.getTiff().isImageFileDirectoryOffsetValid()); 
 
   codecs.getOptions().getTiff().getLoad().setIgnorePhotometricInterpretation(true); 
   codecs.getOptions().getTiff().getLoad().setIgnoreViewPerspective(false); 
   codecs.getOptions().getTiff().getLoad().setUseFastConversion(false); 
 
   RasterImage image = codecs.load(srcFileName); 
 
   codecs.getOptions().getTiff().getSave().setNoPalette(imageInfo.getTiff().hasNoPalette()); 
   codecs.getOptions().getTiff().getSave().setPreservePalette(imageInfo.getTiff().hasNoPalette()); 
 
   // Set the tiffSave options 
   // CodecsTiffSaveOptions reference 
   codecs.getOptions().getTiff().getSave().setNoPageNumber(false); 
   codecs.getOptions().getTiff().getSave().setNoSubFileType(false); 
   codecs.getOptions().getTiff().getSave().setUsePhotometricInterpretation(true); 
   codecs.getOptions().getTiff().getSave().setPhotometricInterpretation(CodecsTiffPhotometricInterpretation.YCBCR); 
   codecs.getOptions().getTiff().getSave().setUseTileSize(true); 
   codecs.getOptions().getTiff().getSave().setTileHeight(200); 
   codecs.getOptions().getTiff().getSave().setTileWidth(200); 
   codecs.getOptions().getTiff().getSave().setNoLzwAutoClear(false); 
   codecs.getOptions().getTiff().getSave().setSavePlanar(false); 
   codecs.getOptions().getTiff().getSave().setUsePredictor(false); 
 
   // make the output file have the same format as the input, so Tiff->Tiff, 
   // BigTiff->BigTiff 
   codecs.getOptions().getTiff().getSave().setBigTiff(imageInfo.getTiff().isBigTiff()); 
 
   // saving the image 
   codecs.save(image, combine(LEAD_VARS_IMAGES_DIR, "testtiff1.TIF"), RasterImageFormat.TIF, image.getBitsPerPixel(), 
         1, image.getPageCount(), 1, CodecsSavePageMode.OVERWRITE); 
 
   // change some tiffsave options. 
   codecs.getOptions().getTiff().getSave().setNoPageNumber(true); 
   codecs.getOptions().getTiff().getSave().setNoSubFileType(true); 
   codecs.getOptions().getTiff().getSave().setUsePhotometricInterpretation(false); 
   codecs.getOptions().getTiff().getSave().setUseTileSize(false); 
   codecs.getOptions().getTiff().getSave().setNoPalette(false); 
   codecs.getOptions().getTiff().getSave().setPreservePalette(true); 
   codecs.getOptions().getTiff().getSave().setPhotometricInterpretation(CodecsTiffPhotometricInterpretation.PALETTE); 
 
   // save the image with different name. 
   String outputFileName = combine(LEAD_VARS_IMAGES_DIR, "testtiff2.TIF"); 
   codecs.save(image, outputFileName, RasterImageFormat.CCITT_GROUP4, image.getBitsPerPixel(), 1, 
         image.getPageCount(), 1, CodecsSavePageMode.OVERWRITE); 
 
   assertTrue("File unsuccessfully saved to " + outputFileName, (new File(outputFileName)).exists()); 
   System.out.printf("File successfully saved to %s%n", outputFileName); 
   // Clean up 
   image.dispose(); 
   codecs.dispose(); 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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© 1991-2024 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Codecs Assembly
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.