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 * Image processing operations for SciJava Ops.
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package org.scijava.ops.image.features.haralick;

import org.scijava.ops.image.image.cooccurrenceMatrix.CooccurrenceMatrix2D;
import org.scijava.ops.image.image.cooccurrenceMatrix.MatrixOrientation;
import net.imglib2.RandomAccessibleInterval;
import net.imglib2.type.numeric.RealType;
import net.imglib2.type.numeric.real.DoubleType;

import org.scijava.function.Functions;
import org.scijava.ops.spi.OpDependency;

/**
 * Abstract class for HaralickFeatures.
 *
 * @author Christian Dietz (University of Konstanz)
 * @param <T>
 */
public abstract class AbstractHaralickFeature<T extends RealType<T>> implements
	Functions.Arity4<RandomAccessibleInterval<T>, Integer, Integer, MatrixOrientation, DoubleType>
{

	@OpDependency(name = "image.cooccurrenceMatrix")
	private Functions.Arity4<RandomAccessibleInterval<T>, MatrixOrientation, Integer, Integer, double[][]> coocFunc;

	/**
	 * given the specified parameters. No caching!
	 *
	 * @return the {@link CooccurrenceMatrix2D}
	 */
	protected double[][] getCooccurrenceMatrix(
		final RandomAccessibleInterval<T> input, final Integer numGreyLevels,
		final Integer distance, final MatrixOrientation matrixOrientation)
	{
		if (matrixOrientation.numDims() != input.numDimensions())
			throw new IllegalArgumentException(
				"MatrixOrientation must be of the same dimensions as the input!");
		return coocFunc.apply(input, matrixOrientation, numGreyLevels, distance);
	}

}
