图片裁剪工具java_java实现图片裁切的工具类实例

package com.yanek.util;

import java.awt.Rectangle;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.util.Iterator;

import javax.imageio.ImageIO;

import javax.imageio.ImageReadParam;

import javax.imageio.ImageReader;

import javax.imageio.stream.ImageInputStream;

public class ImgCutUtil {

/**

* @param args

*/

public static void main(String[] args) {

ImgCutUtil.cut(30, 50, 300, 400, "d:/1.jpg", "d:/100.jpg");

}

/**

* 图片裁切

* @param x1 选择区域左上角的x坐标

* @param y1 选择区域左上角的y坐标

* @param width 选择区域的宽度

* @param height 选择区域的高度

* @param sourcePath 源图片路径

* @param descpath 裁切后图片的保存路径

*/

public static void cut(int x1, int y1, int width, int height,

String sourcePath, String descpath) {

FileInputStream is = null;

ImageInputStream iis = null;

try {

is = new FileInputStream(sourcePath);

String fileSuffix = sourcePath.substring(sourcePath

.lastIndexOf(".") + 1);

Iterator it = ImageIO

.getImageReadersByFormatName(fileSuffix);

ImageReader reader = it.next();

iis = ImageIO.createImageInputStream(is);

reader.setInput(iis, true);

ImageReadParam param = reader.getDefaultReadParam();

Rectangle rect = new Rectangle(x1, y1, width, height);

param.setSourceRegion(rect);

BufferedImage bi = reader.read(0, param);

ImageIO.write(bi, fileSuffix, new File(descpath));

} catch (Exception ex) {

ex.printStackTrace();

} finally {

if (is != null) {

try {

is.close();

} catch (IOException e) {

e.printStackTrace();

}

is = null;

}

if (iis != null) {

try {

iis.close();

} catch (IOException e) {

e.printStackTrace();

}

iis = null;

}

}

}

}