boofcv.abst.calib.ConfigChessboard Maven / Gradle / Ivy
/*
* Copyright (c) 2011-2015, Peter Abeles. All Rights Reserved.
*
* This file is part of BoofCV (http://boofcv.org).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package boofcv.abst.calib;
import boofcv.alg.feature.detect.chess.DetectChessboardFiducial;
import boofcv.factory.shape.ConfigPolygonDetector;
import boofcv.struct.Configuration;
/**
* Calibration parameters for chessboard style calibration grid.
*
* @see DetectChessboardFiducial
*
* @author Peter Abeles
*/
public class ConfigChessboard implements Configuration {
/**
* Number of squares wide the grid is. Target dependent.
*/
public int numCols = -1;
/**
* Number of squares tall the grid is. Target dependent.
*/
public int numRows = -1;
/**
* Global threshold used on the image. If <= 0 then a local adaptive threshold is used instead
*/
public double binaryGlobalThreshold = -1;
/**
* Size of local region used by adaptive threshold
*/
public int binaryAdaptiveRadius = 20;
/**
* Bias used by local adaptive threshold
*/
public double binaryAdaptiveBias = -10;
/**
* Configuration for square detector
*/
public ConfigPolygonDetector square = new ConfigPolygonDetector(true, 4);
/**
* Physical width of each square on the calibration target
*/
public double squareWidth;
{
square.minimumEdgeIntensity = 0.1;
square.contour2Poly_splitDistanceFraction = 0.05;
square.minContourImageWidthFraction = 0.05;
square.refineWithCorners = true;
square.refineWithLines = false;
// good value for squares. Set it here to make it not coupled to default values
square.configRefineCorners.cornerOffset = 2;
square.configRefineCorners.lineSamples = 10;
square.configRefineCorners.convergeTolPixels = 0.05;
square.configRefineCorners.maxIterations = 10;
}
public ConfigChessboard(int numCols, int numRows, double squareWidth ) {
this.numCols = numCols;
this.numRows = numRows;
this.squareWidth = squareWidth;
}
@Override
public void checkValidity() {
if( numCols <= 0 || numRows <= 0 )
throw new IllegalArgumentException("Must specify then number of rows and columns in the target");
}
}