Java BufferedImage Crop crop(BufferedImage source, File to, int x1, int y1, int x2, int y2)

Description

Crop an image

License

Open Source License

Parameter

Parameter	Description
originalImage	The image file
to	The destination file
x1	The new x origin
y1	The new y origin
x2	The new x end
y2	The new y end

Declaration

public static void crop(BufferedImage source, File to, int x1, int y1, int x2, int y2) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;

import javax.imageio.stream.FileImageOutputStream;

public class Main {
    /**//from   w  ww.  j a  v  a 2 s. c om
     * Crop an image
     * 
     * @param originalImage
     *            The image file
     * @param to
     *            The destination file
     * @param x1
     *            The new x origin
     * @param y1
     *            The new y origin
     * @param x2
     *            The new x end
     * @param y2
     *            The new y end
     */
    public static void crop(File originalImage, File to, int x1, int y1, int x2, int y2) {
        try {
            BufferedImage source = ImageIO.read(originalImage);
            crop(source, to, x1, y1, x2, y2);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }

    /**
     * Crop an image
     * 
     * @param originalImage
     *            The image file
     * @param to
     *            The destination file
     * @param x1
     *            The new x origin
     * @param y1
     *            The new y origin
     * @param x2
     *            The new x end
     * @param y2
     *            The new y end
     */
    public static void crop(BufferedImage source, File to, int x1, int y1, int x2, int y2) {
        try {
            String mimeType = "image/jpeg";
            if (to.getName().endsWith(".png")) {
                mimeType = "image/png";
            }
            if (to.getName().endsWith(".gif")) {
                mimeType = "image/gif";
            }
            int width = x2 - x1;
            int height = y2 - y1;

            // out
            BufferedImage dest = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            Image croppedImage = source.getSubimage(x1, y1, width, height);
            Graphics graphics = dest.getGraphics();
            graphics.setColor(Color.WHITE);
            graphics.fillRect(0, 0, width, height);
            graphics.drawImage(croppedImage, 0, 0, null);
            ImageWriter writer = ImageIO.getImageWritersByMIMEType(mimeType).next();
            writer.setOutput(new FileImageOutputStream(to));
            IIOImage image = new IIOImage(dest, null, null);
            writer.write(null, image, createImageWriteParam(writer));

        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }

    public static ImageWriteParam createImageWriteParam(ImageWriter writer) {
        ImageWriteParam params = writer.getDefaultWriteParam();
        // JPEGImageWriteParam jpegImageWriteParam = new
        // JPEGImageWriteParam(writer.getLocale());
        // jpegImageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        // jpegImageWriteParam.setCompressionQuality(0.8F);
        params.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        params.setCompressionQuality(0.95F);
        return params;
    }
}

Related

1. autoCrop(BufferedImage source)
2. autoCrop(BufferedImage source, double tolerance)
3. crop(BufferedImage image, Rectangle clip)
4. crop(BufferedImage input, int x, int y, int width, int height)
5. crop(BufferedImage original, int newSize)
6. crop(BufferedImage source, int startX, int startY, int endX, int endY)
7. crop(BufferedImage src, int width, int height)
8. crop(BufferedImage src, int x, int y, int width, int height)
9. crop(BufferedImage src, Rectangle rect)