plateverticalgraph.java

JavaANPR是一个自动车牌识别程序

/*
------------------------------------------------------------------------
JavaANPR - Automatic Number Plate Recognition System for Java
------------------------------------------------------------------------

This file is a part of the JavaANPR, licensed under the terms of the
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Copyright (c) 2006-2007 Ondrej Martinsky. All rights reserved

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If you want to alter upon this work, you MUST attribute it in 
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b) on every place, where is the copyright of derivated work
exactly by the following label :

---- label begin ----
This work is a derivate of the JavaANPR. JavaANPR is a intellectual 
property of Ondrej Martinsky. Please visit http://javaanpr.sourceforge.net 
for more info about JavaANPR. 
----  label end  ----

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                                         http://javaanpr.sourceforge.net
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*/


package javaanpr.imageanalysis;

import java.util.Collections;
import java.util.Comparator;
import java.util.Vector;
import javaanpr.intelligence.Intelligence;


public class PlateVerticalGraph extends Graph {
    private static double peakFootConstant =// 0.42;  /* CONSTANT*/
            Intelligence.configurator.getDoubleProperty("plateverticalgraph_peakfootconstant");
    
    Plate handle;
    
    public PlateVerticalGraph(Plate handle) {
        this.handle = handle;
    }
    
    public class PeakComparer implements Comparator {
        PlateVerticalGraph graphHandle = null;
        
        public PeakComparer(PlateVerticalGraph graph) {
            this.graphHandle = graph;
        }
        
        private float getPeakValue(Object peak) {
            // heuristika : aky vysoky (siroky na gragfe) je kandidat na pismeno
            // preferuju sa vyssie
            //return ((Peak)peak).getDiff();
            
            // vyska peaku
            return this.graphHandle.yValues.elementAt(((Peak)peak).getCenter());
            
            // heuristika : 
            // ako daleko od stredu je kandidat
//            int peakCenter = (  ((Peak)peak).getRight() + ((Peak)peak).getLeft()  )/2;
//            return Math.abs(peakCenter - this.graphHandle.yValues.size()/2);
        }
        
        public int compare(Object peak1, Object peak2) { // Peak
            double comparison = this.getPeakValue(peak2) - this.getPeakValue(peak1);
            if (comparison < 0) return -1;
            if (comparison > 0) return 1;
            return 0;
        }
    }
    
    public Vector<Peak> findPeak(int count) {
        
        // znizime peak
        for (int i=0; i<this.yValues.size();i++)
            this.yValues.set(i,this.yValues.elementAt(i) - this.getMinValue());
        
        Vector<Peak> outPeaks = new Vector<Peak>();
        
        for (int c=0; c<count; c++) { // for count
            float maxValue = 0.0f;
            int maxIndex = 0;
            for (int i=0; i<this.yValues.size(); i++) { // zlava doprava
                if (allowedInterval(outPeaks, i)) { // ak potencialny vrchol sa nachadza vo "volnom" intervale, ktory nespada pod ine vrcholy
                    if (this.yValues.elementAt(i) >= maxValue) {
                        maxValue = this.yValues.elementAt(i);
                        maxIndex = i;
                    }
                }
            } // end for int 0->max
            // nasli sme najvacsi peak
            
            if (yValues.elementAt(maxIndex) < 0.05 * super.getMaxValue()) break;//0.4
            
            int leftIndex = indexOfLeftPeakRel(maxIndex,peakFootConstant);
            int rightIndex = indexOfRightPeakRel(maxIndex,peakFootConstant);
            
            outPeaks.add(new Peak(
                    Math.max(0,leftIndex),
                    maxIndex,
                    Math.min(this.yValues.size()-1,rightIndex)
                    ));
        }
        
        Collections.sort(outPeaks, (Comparator<? super Graph.Peak>)
                                   new PeakComparer(this));
        super.peaks = outPeaks;
        return outPeaks;
    }
    
    

    
}