exemplos.PegandoPixelsSemJAI.java Source code

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Here is the source code for exemplos.PegandoPixelsSemJAI.java

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/*
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package exemplos;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.image.BufferedImage;
import java.awt.image.Raster;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.statistics.HistogramDataset;
import org.jfree.data.statistics.HistogramType;

/**
 *
 * @author andre
 */
public class PegandoPixelsSemJAI extends JFrame {

    public void pegaPixel() throws IOException {

        File f = new File("D:\\ProjetosNetBeans\\PDI\\src\\imagens\\ebola.png"); //seleciona o arquivo
        BufferedImage image = ImageIO.read(f); //le o arquivo
        System.out.println("Dimenses: " + image.getWidth() + "x" + image.getHeight() + "pixels"); //exibe suas dimenses

        Raster raster = image.getRaster(); //pega os valores dos pixels
        double pixel[] = new double[3]; //cria um array com 3 posies
        int brancos = 0; //cria uma varivel para contar os pixels brancos
        for (int h = 0; h < image.getHeight(); h++)
            for (int w = 0; w < image.getWidth(); w++) {
                raster.getPixel(w, h, pixel);
                if ((pixel[0] == 255) && (pixel[1] == 255) && (pixel[2] == 255))//confirma se o RGB  igual a 255, ou seja, branco
                    brancos++;

            }

    }

    //    public ChartPanel criaHistograma(double[] histograma){
    //        // int number = data.length;
    //        dataset = new HistogramDataset();
    //        dataset.setType(HistogramType.RELATIVE_FREQUENCY);
    //        dataset.addSeries("Hist", histograma, 256);
    //        String plotTitle = "";
    //        String xAxis = "Frequency";
    //        String yAxis = "Mass Error (Da)";
    //        PlotOrientation orientation = PlotOrientation.VERTICAL;
    //
    //        boolean show = false;
    //        boolean toolTips = false;
    //        boolean urls = false;
    //        JFreeChart chart = ChartFactory.createHistogram(plotTitle, xAxis, yAxis,
    //                dataset, orientation, show, toolTips, urls);
    //
    //        chart.setBackgroundPaint(Color.white);
    //        ChartPanel panel = new ChartPanel(chart);
    //        panel.setMouseWheelEnabled(true);
    //        return panel;
    //    }
    //    
    //    public void montaTela() throws IOException{
    //        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    //        add(pegaPixel(), BorderLayout.CENTER);
    //        pack();
    //        setLocationRelativeTo(null);
    //        setVisible(true);
    //    }
    //    
    //    public static void main(String args[]){
    //        EventQueue.invokeLater(() -> {
    //            try {
    //                new PegandoPixelsSemJAI().montaTela();
    //            } catch (IOException ex) {
    //                Logger.getLogger(PegandoPixelsSemJAI.class.getName()).log(Level.SEVERE, null, ex);
    //            }
    //        });
    //    }
}