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SegmentQuality Property

Summary

Threshold value used to determine whether the segment is a picture segment.

Syntax

C++/CLI

Python

public int SegmentQuality { get; set; }

public: 
property int SegmentQuality { 
   int get(); 
   void set (    int ); 
}

SegmentQuality # get and set (MrcSegmentImageOptions)

Property Value

Possible values range from 0 to 100. Use 0 to set all possible picture segments to 2-bit without loss of a lot of information. Use 100 to set all picture segments to 2 bit only if they are very very close to 2-bit.

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Mrc; 
 
private bool MrcEnumerateSegmentInfoCallback(MrcSegmenter segmentHandle, MrcSegmentData data, int iD) 
{ 
   if (iD == 0) 
   { 
      MessageBox.Show("Segment ID : " + iD.ToString()); 
      MessageBox.Show("Left : " + data.ImageSegment.Left.ToString() + 
         "\nTop : " + data.ImageSegment.Top.ToString() + 
         "\nRight : " + data.ImageSegment.Right.ToString() + 
         "\nBottom : " + data.ImageSegment.Bottom.ToString()); 
   } 
   return true; 
} 
 
public void MrcSegmenterExample() 
{ 
   // Load an image 
   RasterCodecs codecs = new RasterCodecs(); 
   codecs.ThrowExceptionsOnInvalidImages = true; 
 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "PDFSegmentation.pdf")); 
 
   MrcSegmentImageOptions segmentImageOptions = MrcSegmentImageOptions.Empty; 
   segmentImageOptions.CleanSize = 5; 
   segmentImageOptions.SegmentQuality = 50; 
   segmentImageOptions.ColorThreshold = 25; 
   segmentImageOptions.BackgroundThreshold = 10; 
   segmentImageOptions.CombineThreshold = 75; 
   segmentImageOptions.Flags = MrcSegmentImageFlags.FavorOneBit | MrcSegmentImageFlags.SegmentWithBackground; 
 
   MrcSegmenter segmenter = new MrcSegmenter(image, RasterColor.FromKnownColor(RasterKnownColor.White), RasterColor.FromKnownColor(RasterKnownColor.Black)); 
   segmenter.SegmentImage(image, segmentImageOptions); 
 
   MrcEnumerateSegmentsInfo callBack = new MrcEnumerateSegmentsInfo(MrcEnumerateSegmentInfoCallback); 
   segmenter.EnumerateSegments(callBack); 
 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

MrcSegmentImageOptions Structure

MrcSegmentImageOptions Members

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Help Version 22.0.2023.4.12

Leadtools.Mrc Assembly

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Leadtools.Mrc Namespace

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