cut Picture - Java 2D Graphics

Java examples for 2D Graphics:Image

  1. HOME
  2. Java
  3. 2D Graphics
  4. Image

Description

cut Picture

Demo Code


//package com.java2s;
import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;

import java.io.IOException;

import java.util.Iterator;

public class Main {


    public static boolean cutPic(String srcFile, String outFile, int x,
            int y, int width, int height) {
        FileInputStream is = null;
        ImageInputStream iis = null;
        try {/*from w  w  w .j  a  va2 s.c om*/
            // 
            if (!new File(srcFile).exists()) {
                return false;
            }

            // 
            is = new FileInputStream(srcFile);

            // ?
            String ext = srcFile.substring(srcFile.lastIndexOf(".") + 1);

            // ImageReader
            Iterator<ImageReader> it = ImageIO
                    .getImageReadersByFormatName(ext);
            ImageReader reader = it.next();

            // 
            iis = ImageIO.createImageInputStream(is);

            // ?
            reader.setInput(iis, true);

            // 
            ImageReadParam param = reader.getDefaultReadParam();

            // ?
            Rectangle rect = new Rectangle(x, y, width, height);

            //  BufferedImage
            param.setSourceRegion(rect);

            //  ImageReadParam  imageIndex ?
            BufferedImage bi = reader.read(0, param);

            // 
            File tempOutFile = new File(outFile);
            if (!tempOutFile.exists()) {
                tempOutFile.mkdirs();
            }
            ImageIO.write(bi, ext, new File(outFile));
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        } finally {
            try {
                if (is != null) {
                    is.close();
                }
                if (iis != null) {
                    iis.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
                return false;
            }
        }
    }
}

Related Tutorials