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

import net.imglib2.IterableInterval;
import net.imglib2.type.numeric.RealType;
import net.imglib2.type.numeric.real.DoubleType;

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

/**
 * Get Phase of Zernike moment as feature
 *
 * @author Andreas Graumann (University of Konstanz)
 * @param <T> Input Type
 * @implNote op names='features.zernike.phase'
 */
public class DefaultPhaseFeature<T extends RealType<T>> implements
	Computers.Arity3<IterableInterval<T>, Integer, Integer, DoubleType>
{

	@OpDependency(name = "features.zernike.computer")
	private Functions.Arity3<IterableInterval<T>, Integer, Integer, ZernikeMoment> zernikeOp;

	/**
	 * TODO
	 *
	 * @param input
	 * @param order
	 * @param repetition
	 * @param output
	 */
	@Override
	public void compute(IterableInterval<T> input, Integer order,
		Integer repetition, DoubleType output)
	{
		if (input.numDimensions() != 2) throw new IllegalArgumentException(
			"Only 2 dimensional inputs allowed!");
		output.setReal(zernikeOp.apply(input, order, repetition).getPhase());
	}

}
