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我之前發佈了此代碼，但我解決了我遇到的問題。但是，我遇到了最後一個問題：如何將此代碼中的bin值從64更改爲8和512？它將在64個bin中運行得很好，但其他任何情況都會返回數組索引超出範圍。這是「stackoverflow」的完美問題，因爲這正是發生在這裏的事情。 :)更改柱狀圖中的bin值
import java.io.File;
import weka.core.Attribute;
import weka.core.FastVector;
import weka.core.Instance;
import weka.core.Instances;
import weka.core.converters.ArffSaver;
import weka.filters.Filter;
import weka.filters.unsupervised.instance.NonSparseToSparse;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
public class AttTest {
public static void main(String[] args) throws Exception
{
int i;
FastVector attributes;
Instances dataSet;
attributes = new FastVector();
for (i = 0; i < 64; i++)
attributes.addElement(new Attribute("bin" +(i+1))) ;
dataSet = new Instances("NormalizedHistogram_64bins", attributes, 0);
NonSparseToSparse nonSparseToSparseInstance = new NonSparseToSparse();
nonSparseToSparseInstance.setInputFormat(dataSet);
Instances sparseDataset = Filter.useFilter(dataSet, nonSparseToSparseInstance);
System.out.println(sparseDataset);
ArffSaver arffSaverInstance = new ArffSaver();
arffSaverInstance.setInstances(sparseDataset);
arffSaverInstance.setFile(new File("ESDN.arff"));
arffSaverInstance.writeBatch();
Histogram();
}
private static void Histogram() throws IOException {
int[][][] ch = new int[4][4][4];
BufferedImage image = ImageIO.read(new File("airplane_training3.jpg"));
for(int x = 0; x < image.getWidth(); x++)
for(int y = 0; y < image.getHeight(); y++) {
int color = image.getRGB(x, y);
int alpha = (color & 0xff000000) >> 24;
int red = (color & 0x00ff0000) >> 16;
int green = (color & 0x0000ff00) >> 8;
int blue = color & 0x000000ff;
ch[red/64][green/64][blue/64]++;
}
for(int i = 0; i < ch.length; i++)
for(int j = 0; j < ch[i].length; j++)
for(int p = 0; p < ch[i][j].length; p++)
System.out.print("0." + (ch[i][j][p])/64 + ",");
PrintWriter writer = new PrintWriter("C:\\Users\\Someguy\\Desktop\\TrainingData_64.arff");
writer.println("");
writer.close();
}
}