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AlphaTrimmedDualBellEdgeDetectorMatrixFilter.cs
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AlphaTrimmedDualBellEdgeDetectorMatrixFilter.cs
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/*
* MetaphysicsIndustries.Acuity
* Copyright (C) 2009-2021 Metaphysics Industries, Inc., Richard Sartor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*
*/
using System;
using System.Collections.Generic;
using System.Text;
namespace MetaphysicsIndustries.Acuity
{
[Serializable]
public class AlphaTrimmedDualBellEdgeDetectorMatrixFilter : DualBellEdgeDetectorMatrixFilter
{
public AlphaTrimmedDualBellEdgeDetectorMatrixFilter(float alpha, int windowSize)
: base(windowSize)
{
_alpha = alpha;
}
private float _alpha;
public float Alpha
{
get { return _alpha; }
set { _alpha = value; }
}
protected override float SelectValueFromOrderedMeasures(List<float> measures)
{
List<float> measures2 = new List<float>(measures);
int alphaCount = (int)Math.Ceiling(WindowSize * WindowSize * Alpha / 2);
if (measures2.Count > alphaCount)
{
measures2.RemoveRange(0, alphaCount);
}
if (measures2.Count > alphaCount)
{
measures2.RemoveRange(measures2.Count - alphaCount, alphaCount);
}
return base.SelectValueFromOrderedMeasures(measures2);
}
}
}