Demonstrating Use of the Image I/O Library
import java.awt.image.BufferedImage;
import java.awt.image.ConvolveOp;
import java.awt.image.Kernel;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class SaveIt {
private static final float[] SHARP = { 0.0f, -1.0f, 0.0f, -1.0f, 5.0f,
-1.0f, 0.0f, -1.0f, 0.0f };
public static void main(String args[]) throws IOException {
// Read
File inputFile = new File("java2s.jpg");
BufferedImage input = ImageIO.read(inputFile);
// Convert
Kernel kernel = new Kernel(3, 3, SHARP);
ConvolveOp convolveOp = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP,
null);
int width = input.getWidth();
int height = input.getHeight();
BufferedImage output = new BufferedImage(width, height,
BufferedImage.TYPE_INT_ARGB);
convolveOp.filter(input, output);
// Save
File outputFile = new File("java2s.png");
ImageIO.write(output, "PNG", outputFile);
}
}
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