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BinaryImageOps.removePointNoise
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How to use
removePointNoise
method
in
boofcv.alg.filter.binary.BinaryImageOps

Best Java code snippets using boofcv.alg.filter.binary.BinaryImageOps.removePointNoise (Showing top 2 results out of 315)

origin: lessthanoptimal/BoofAndroidDemo

  @Override
  public void process(GrayU8 input) {
    // Select a reasonable threshold
    double mean = GThresholdImageOps.computeOtsu(input,0,255);
    // create a binary image by thresholding
    ThresholdImageOps.threshold(input, binary, (int)mean, down);
    // reduce noise with some filtering
    BinaryImageOps.removePointNoise(binary, filtered1);
    // draw binary image for output
    if( showBinary ) {
      VisualizeImageData.binaryToBitmap(filtered1, false, bitmap, bitmapTmp);
    } else {
      ConvertBitmap.boofToBitmap(input,bitmap,bitmapTmp);
    }
    // draw the ellipses
    findContours.process(filtered1,contourOutput);
    List<Contour> contours = BinaryImageOps.contour(filtered1, ConnectRule.EIGHT,null);
    resetShapes();
    for (Contour contour : contours) {
      List<Point2D_I32> points = contour.external;
      if (points.size() < 20)
        continue;
      fitShape(points);
    }
    finalizeShapes();
    visualizationPending = true;
  }
}
origin: lessthanoptimal/BoofAndroidDemo

BinaryImageOps.removePointNoise(binary, afterOps);
break;
boofcv.alg.filter.binaryBinaryImageOpsremovePointNoise

Javadoc

Binary operation which is designed to remove small bits of spurious noise. An 8-neighborhood is used. If a pixel is connected to less than 2 neighbors then its value zero. If connected to more than 6 then its value is one. Otherwise it retains its original value.

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    Dilates an image according to a 4-neighborhood. If a pixel is connected to any other pixel then its
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    Binary operation which is designed to remove all pixels but ones which are on the edge of an object
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    Inverts each pixel from true to false and vis-versa.
  • labelToBinary
    Only converts the specified blobs over into the binary image
  • invert,
  • labelToBinary,
  • thin

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