SegmentTypeFlags Enumeration

Summary

Flags that identify the type of the segment.

Syntax

C++/CLI

Python

[FlagsAttribute()] 
public enum SegmentTypeFlags

[FlagsAttribute()] 
public enum class SegmentTypeFlags

class SegmentTypeFlags(Enum): 
   Background = 0 
   OneBit = 1 
   OnBitBW = 2 
   TwoBit = 3 
   TwoBitGray = 4 
   Gray = 5 
   Picture = 6 
   TwoBitBW = 7 
   OneColor = 8

Members

Value	Member	Description
0x00000000	Background	The segment uses one color that represents the image background.
0x00000001	OneBit	The segment is a 1BPP image.
0x00000002	OnBitBW	The segment is a 1BPP black and white image.
0x00000003	TwoBit	The segment is a 2BPP image.
0x00000004	TwoBitGray	The segment is a 2BPP gray scale image.
0x00000005	Gray	The segment is a gray scale image.
0x00000006	Picture	The segment is a picture.
0x00000007	TwoBitBW	The segment is a 2BPP black and white image.
0x00000008	OneColor	The segment has only one color.

Example

using Leadtools; 
using Leadtools.PdfCompressor; 
using Leadtools.Codecs; 
 
 
public void pdfCompressor_SegmentImage_PdfDocument(object sender, PdfCompressorSegmentImageEventArgs e) 
{ 
   //This will prevent addition to any segment with type background in all pages except the first page only 
   if (e.Page != 0 && e.Segment.Type == SegmentTypeFlags.Background) 
      e.Cancel = true; 
   else 
      e.Cancel = false; 
 
} 
 
public void PdfCompressorExample_PdfDocument() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "MRCSegmentation.mrc")); 
 
   PdfCompressorEngine pdfCompressor = new PdfCompressorEngine(); 
   PdfCompressorCompressionTypes compressionTypes = new PdfCompressorCompressionTypes(); 
 
   //Sets compression types needed for each segment 
   compressionTypes.Comp1Bit = PdfCompressor1BitCompression.Zip1Bit; 
   compressionTypes.Comp2Bit = PdfCompressor2BitCompression.Lzw2Bit; 
   compressionTypes.CompPicture = PdfCompressorPictureCompression.JpgPic; 
   compressionTypes.QFactor = 2; 
   //Flags for used compression types should be set 
   compressionTypes.Flags = EnabledCompressionsFlags.EnableOneBit | 
      EnabledCompressionsFlags.EnableTwoBit | 
      EnabledCompressionsFlags.EnablePicture; 
 
   pdfCompressor.SetCompression(compressionTypes); 
 
   pdfCompressor.Insert(image); 
   pdfCompressor.SegmentImage += new EventHandler<PdfCompressorSegmentImageEventArgs>(pdfCompressor_SegmentImage_PdfDocument); 
   pdfCompressor.Write(Path.Combine(LEAD_VARS.ImagesDir, "Out_Image.pdf")); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

Leadtools.PdfCompressor Namespace

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Help Version 22.0.2023.3.31

Leadtools.PdfCompressor Assembly

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Leadtools.PdfCompressor Namespace

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