Saturday, July 26, 2008

Java2Dで画像をぼかす

Java2Dで画像をぼかすには、以下のコードを実行します。

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
import javax.imageio.*;

public class Java2DTest10
{
public static void main(String args[])
throws Exception
{
/* Java2Dで画像をぼかす */
BufferedImage img = ImageIO.read(new File("sf.jpg"));
BufferedImage img2 = new BufferedImage(
img.getWidth(), img.getHeight(), BufferedImage.TYPE_INT_RGB
);
Graphics2D gr = img2.createGraphics();
gr.drawImage(img,0,0,null);
gr.dispose();

float kernel[] = new float[3*3];
for(int li=0;li<3*3;li++){
kernel[li] = 1F/(3*3);
}

BufferedImageOp bio = new ConvolveOp(new Kernel(3, 3, kernel),
ConvolveOp.EDGE_NO_OP, new RenderingHints(new HashMap()));
BufferedImage img3 = bio.filter(img2, null);
ImageIO.write(img3, "jpg", new File("sample511a.jpg"));

}
}

元画像(sf.jpg)


出力画像(sample511a.jpg)


環境
JDK6 Upadate6(JDK1.6.0_06)

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