Holes Extraction¶

This code snippet shows how to retrieve blobs’ holes.

C++¶

#include <eVision/EasyObject/EasyObject2/EImageEncoder.h>

using namespace eVision;
// Image constructor
EImageBW8 srcImage;
// Image encoder
EImageEncoder encoder;
// Coded image
ECodedImage2 codedImage;
// ...
// Encode the image
encoder.Encode(srcImage, codedImage);
// Retrieve holes for all the blobs
for (unsigned int blobIndex = 0; blobIndex < codedImage.GetObjCount(); blobIndex++)
{
  ECodedElement blob = codedImage.GetObj(blobIndex);
  // Browse the holes of the current object
  for (unsigned int holeIndex = 0; holeIndex < blob.GetHoleCount(); holeIndex++)
  {
    // Retrieve a given hole
    ECodedElement hole = blob.GetHole(holeIndex);
  }
}

C#¶

using eVision;

// Image constructor
EImageBW8 srcImage = new EImageBW8();
// Image encoder
EImageEncoder encoder = new EImageEncoder();
// Coded image
ECodedImage2 codedImage = new ECodedImage2();
// ...
// Encode the image
encoder.Encode(srcImage, codedImage);
// Retrieve holes for all the blobs
for (uint blobIndex = 0; blobIndex < codedImage.GetObjCount(); blobIndex++)
{
  ECodedElement blob = codedImage.GetObj(blobIndex);
  // Browse the holes of the current object
  for (uint holeIndex = 0; holeIndex < blob.HoleCount; holeIndex++)
  {
    // Retrieve a given hole
    ECodedElement hole = blob.GetHole(holeIndex);
  }
}

Python¶

import eVision
# Image constructor
src_image = eVision.EImageBW8()
# Image encoder
encoder = eVision.EImageEncoder()
# Coded image
codedImage = eVision.ECodedImage2()
# ...
# Encode the image
encoder.Encode(src_image, codedImage)
# Retrieve holes for all the blobs
for blobIndex in range(codedImage.GetObjCount()):
    blob = codedImage.GetObj(blobIndex)
    # Browse the holes of the current object
    for holeIndex in range(blob.HoleCount):
        # Retrieve a given hole
        hole = blob.GetHole(holeIndex)