package pl.wroc.pwr.imagechannel.moment;

import pl.wroc.pwr.IOperator;

public class InvariantMoments implements IOperator< double [] >
{
	/**
	 * 
	 */
	private static final long serialVersionUID = 2418621555973063406L;

	/*private IImageChannel imageChannel;
	
	private NormalizedMoment moment11;
	
	private NormalizedMoment moment20;
	private NormalizedMoment moment02;*/
	//private NormalizedMoment moment21;
	//private NormalizedMoment moment12;
	
	//private NormalizedMoment moment30;
	//private NormalizedMoment moment03;
	
	/*private double [ ] invariantMoments;
	
	public InvariantMoments( IImageChannel imageChannel )
	{
		this.imageChannel = imageChannel;
	}*/
	
	public double [ ] apply( )
	{
		/*this.moment11 = new NormalizedMoment( this.imageChannel, 1, 1 );
		this.moment02 = new NormalizedMoment( this.imageChannel, 0, 2 );
		this.moment20 = new NormalizedMoment( this.imageChannel, 2, 0 );
		//this.moment12 = new NormalizedMoment( this.imageChannel, 1, 2 );
		//this.moment21 = new NormalizedMoment( this.imageChannel, 2, 1 );
		//this.moment30 = new NormalizedMoment( this.imageChannel, 3, 0 );
		//this.moment03 = new NormalizedMoment( this.imageChannel, 0, 3 );

		if ( this.moment11.apply( ) == null ) return null;
		if ( this.moment02.apply( ) == null ) return null;
		if ( this.moment20.apply( ) == null ) return null;
		//if ( this.moment12.apply( ) == null ) return null;
		//if ( this.moment21.apply( ) == null ) return null;
		//if ( this.moment03.apply( ) == null ) return null;
		//if ( this.moment30.apply( ) == null ) return null;
		
		// FIRST
		this.invariantMoments[ 0 ] = this.moment20.getResult( ) + this.moment02.getResult( );
		
		// SECOND
		this.invariantMoments[ 1 ] = Math.pow( this.moment20.getResult( ) - this.moment02.getResult( ), 2 ) +
			4 * Math.pow( this.moment11.getResult( ), 2 );
		
		this.invariantMoments[ 2 ] = 0;
		
		this.invariantMoments[ 3 ] = 0;
		
		this.invariantMoments[ 4 ] = 0;
		
		this.invariantMoments[ 5 ] = 0;
		
		this.invariantMoments[ 6 ] = 0;
		
		return this.getResult( );*/
		return null;
	}

	public double [ ] getResult()
	{
		return null;
		//return this.invariantMoments;
	}
}