java ImageIO处理图像的封装

源：http://blog.csdn.net/hu_shengyang/article/details/7433988
评：
package com.adam.dev.pic.easyImage;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorConvertOp;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Iterator;
import java.util.List;

import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;

/**
* @author adam.胡升阳
* 创建日期 2012-2-29
*/
public class OperateImage{

    public OperateImage() {
super();
}

/**
* 对图片裁剪，并把裁剪新图片保存
* @param srcPath 读取源图片路径
* @param toPath 写入图片路径
* @param x 剪切起始点x坐标
* @param y 剪切起始点y坐标
* @param width 剪切宽度
* @param height 剪切高度
* @param readImageFormat  读取图片格式
* @param writeImageFormat 写入图片格式
* @throws IOException
*/
    public void cropImage(String srcPath,String toPath,
    int x,int y,int width,int height,
    String readImageFormat,String writeImageFormat) throws IOException{  
        FileInputStream fis = null ;
        ImageInputStream iis =null ;
        try{  
            //读取图片文件
        fis = new FileInputStream(srcPath);
            Iterator it = ImageIO.getImageReadersByFormatName(readImageFormat);
            ImageReader reader = (ImageReader) it.next();
            //获取图片流
            iis = ImageIO.createImageInputStream(fis); 
            reader.setInput(iis,true) ;
            ImageReadParam param = reader.getDefaultReadParam();
            //定义一个矩形
            Rectangle rect = new Rectangle(x, y, width, height);
            //提供一个 BufferedImage，将其用作解码像素数据的目标。
            param.setSourceRegion(rect);
            BufferedImage bi = reader.read(0,param);               
            //保存新图片
            ImageIO.write(bi, writeImageFormat, new File(toPath));    
        }finally{
            if(fis!=null)
            fis.close();      
            if(iis!=null)
               iis.close();
        }
    }

    /**
     * 按倍率缩小图片
     * @param srcImagePath 读取图片路径
     * @param toImagePath 写入图片路径
     * @param widthRatio 宽度缩小比例
     * @param heightRatio 高度缩小比例
     * @throws IOException
     */
    public void reduceImageByRatio(String srcImagePath,String toImagePath,int widthRatio,int heightRatio) throws IOException{
    FileOutputStream out = null;
    try{
    //读入文件 
            File file = new File(srcImagePath); 
            // 构造Image对象 
            BufferedImage src = javax.imageio.ImageIO.read(file); 
            int width = src.getWidth(); 
            int height = src.getHeight(); 
            // 缩小边长
            BufferedImage tag = new BufferedImage(width / widthRatio, height / heightRatio, BufferedImage.TYPE_INT_RGB); 
            // 绘制 缩小  后的图片
            tag.getGraphics().drawImage(src, 0, 0, width / widthRatio, height / heightRatio, null); 
            out = new FileOutputStream(toImagePath); 
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
            encoder.encode(tag); 
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(out != null){
                out.close(); 
    }
    }
    }

    /**
     * 长高等比例缩小图片
     * @param srcImagePath 读取图片路径
     * @param toImagePath 写入图片路径
     * @param ratio 缩小比例
     * @throws IOException
     */
    public void reduceImageEqualProportion(String srcImagePath,String toImagePath,int ratio) throws IOException{
    FileOutputStream out = null;
    try{
    //读入文件 
            File file = new File(srcImagePath); 
            // 构造Image对象 
            BufferedImage src = javax.imageio.ImageIO.read(file); 
            int width = src.getWidth(); 
            int height = src.getHeight(); 
            // 缩小边长
            BufferedImage tag = new BufferedImage(width / ratio, height / ratio, BufferedImage.TYPE_INT_RGB); 
            // 绘制 缩小  后的图片
            tag.getGraphics().drawImage(src, 0, 0, width / ratio, height / ratio, null); 
            out = new FileOutputStream(toImagePath); 
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
            encoder.encode(tag); 
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(out != null){
                out.close(); 
    }
    }
    }
   
    /**
     * 按倍率放大图片
     * @param srcImagePath 读取图形路径
     * @param toImagePath 写入入行路径
     * @param widthRatio 宽度放大比例
     * @param heightRatio 高度放大比例
     * @throws IOException
     */
    public void enlargementImageByRatio(String srcImagePath,String toImagePath,int widthRatio,int heightRatio) throws IOException{
    FileOutputStream out = null;
    try{
    //读入文件 
            File file = new File(srcImagePath); 
            // 构造Image对象 
            BufferedImage src = javax.imageio.ImageIO.read(file); 
            int width = src.getWidth(); 
            int height = src.getHeight(); 
            // 放大边长
            BufferedImage tag = new BufferedImage(width * widthRatio, height * heightRatio, BufferedImage.TYPE_INT_RGB); 
            //绘制放大后的图片
            tag.getGraphics().drawImage(src, 0, 0, width * widthRatio, height * heightRatio, null); 
            out = new FileOutputStream(toImagePath); 
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
            encoder.encode(tag); 
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(out != null){
                out.close(); 
    }
    }
    }
   
   
    /**
     * 长高等比例放大图片
     * @param srcImagePath 读取图形路径
     * @param toImagePath 写入入行路径
     * @param ratio 放大比例
     * @throws IOException
     */
    public void enlargementImageEqualProportion(String srcImagePath,String toImagePath,int ratio) throws IOException{
    FileOutputStream out = null;
    try{
    //读入文件 
            File file = new File(srcImagePath); 
            // 构造Image对象 
            BufferedImage src = javax.imageio.ImageIO.read(file); 
            int width = src.getWidth(); 
            int height = src.getHeight(); 
            // 放大边长
            BufferedImage tag = new BufferedImage(width * ratio, height * ratio, BufferedImage.TYPE_INT_RGB); 
            //绘制放大后的图片
            tag.getGraphics().drawImage(src, 0, 0, width * ratio, height * ratio, null); 
            out = new FileOutputStream(toImagePath); 
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
            encoder.encode(tag); 
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(out != null){
                out.close(); 
    }
    }
    }
   
    /**
     * 重置图形的边长大小
     * @param srcImagePath
     * @param toImagePath
     * @param width
     * @param height
     * @throws IOException
     */
    public void resizeImage(String srcImagePath,String toImagePath,int width,int height) throws IOException{
    FileOutputStream out = null;
    try{
    //读入文件 
            File file = new File(srcImagePath); 
            // 构造Image对象 
            BufferedImage src = javax.imageio.ImageIO.read(file); 
            // 放大边长
            BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); 
            //绘制放大后的图片
            tag.getGraphics().drawImage(src, 0, 0, width, height, null); 
            out = new FileOutputStream(toImagePath); 
            JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); 
            encoder.encode(tag); 
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(out != null){
                out.close(); 
    }
    }
    }
   
    /**
     * 横向拼接图片（两张）
     * @param firstSrcImagePath 第一张图片的路径
     * @param secondSrcImagePath 第二张图片的路径
     * @param imageFormat 拼接生成图片的格式
     * @param toPath 拼接生成图片的路径
     */
    public void joinImagesHorizontal(String firstSrcImagePath, String secondSrcImagePath,String imageFormat, String toPath){ 
    try { 
    //读取第一张图片   
    File  fileOne  =  new  File(firstSrcImagePath);   
            BufferedImage  imageOne = ImageIO.read(fileOne);   
            int  width  =  imageOne.getWidth();//图片宽度   
            int  height  =  imageOne.getHeight();//图片高度   
            //从图片中读取RGB   
            int[]  imageArrayOne  =  new  int[width*height];   
            imageArrayOne  =  imageOne.getRGB(0,0,width,height,imageArrayOne,0,width);   
          
            //对第二张图片做相同的处理   
            File  fileTwo  =  new  File(secondSrcImagePath);   
            BufferedImage  imageTwo  =  ImageIO.read(fileTwo);
            int width2 = imageTwo.getWidth();
            int height2 = imageTwo.getHeight();
            int[]   ImageArrayTwo  =  new  int[width2*height2];   
            ImageArrayTwo  =  imageTwo.getRGB(0,0,width,height,ImageArrayTwo,0,width);   
            //ImageArrayTwo  =  imageTwo.getRGB(0,0,width2,height2,ImageArrayTwo,0,width2);
          
            //生成新图片
            //int height3 = (height>height2 || height==height2)?height:height2;
            BufferedImage  imageNew  =  new  BufferedImage(width*2,height,BufferedImage.TYPE_INT_RGB);   
            //BufferedImage  imageNew  =  new  BufferedImage(width+width2,height3,BufferedImage.TYPE_INT_RGB);   
            imageNew.setRGB(0,0,width,height,imageArrayOne,0,width);//设置左半部分的RGB 
            imageNew.setRGB(width,0,width,height,ImageArrayTwo,0,width);//设置右半部分的RGB
            //imageNew.setRGB(width,0,width2,height2,ImageArrayTwo,0,width2);//设置右半部分的RGB   
          
            File  outFile  =  new  File(toPath);   
            ImageIO.write(imageNew,  imageFormat,  outFile);//写图片
        } catch (Exception e) { 
        e.printStackTrace(); 
        } 
    }
   
    /**
* 横向拼接一组（多张）图像
* @param pics  将要拼接的图像
* @param type 图像写入格式
* @param dst_pic 图像写入路径
* @return
*/
    public  boolean joinImageListHorizontal(String[] pics, String type, String dst_pic) {  
    try { 
    int len = pics.length; 
    if (len < 1) { 
    System.out.println("pics len < 1"); 
                return false; 
            } 
    File[] src = new File[len]; 
    BufferedImage[] images = new BufferedImage[len]; 
    int[][] imageArrays = new int[len][]; 
    for (int i = 0; i < len; i++) { 
    src[i] = new File(pics[i]); 
    images[i] = ImageIO.read(src[i]); 
    int width = images[i].getWidth(); 
    int height = images[i].getHeight(); 
    imageArrays[i] = new int[width * height];// 从图片中读取RGB   
    imageArrays[i] = images[i].getRGB(0, 0, width, height,  imageArrays[i], 0, width); 
    } 
   
    int dst_width = 0; 
    int dst_height = images[0].getHeight(); 
    for (int i = 0; i < images.length; i++) { 
    dst_height = dst_height > images[i].getHeight() ? dst_height : images[i].getHeight(); 
    dst_width += images[i].getWidth();
    } 
    //System.out.println(dst_width); 
    //System.out.println(dst_height); 
    if (dst_height < 1) { 
    System.out.println("dst_height < 1"); 
    return false; 
    }
    /*
    * 生成新图片
    */  
    BufferedImage ImageNew = new BufferedImage(dst_width, dst_height,  BufferedImage.TYPE_INT_RGB); 
    int width_i = 0;
    for (int i = 0; i < images.length; i++) { 
    ImageNew.setRGB(width_i, 0, images[i].getWidth(), dst_height,  imageArrays[i], 0, images[i].getWidth()); 
    width_i += images[i].getWidth();
    } 
    File outFile = new File(dst_pic); 
    ImageIO.write(ImageNew, type, outFile);// 写图片  
    } catch (Exception e) { 
            e.printStackTrace(); 
            return false; 
        } 
        return true; 
    }
   
    /**
     * 纵向拼接图片（两张）
     * @param firstSrcImagePath 读取的第一张图片
     * @param secondSrcImagePath 读取的第二张图片
     * @param imageFormat 图片写入格式
     * @param toPath 图片写入路径
     */
    public void joinImagesVertical(String firstSrcImagePath, String secondSrcImagePath,String imageFormat, String toPath){ 
        try { 
        //读取第一张图片   
            File  fileOne  =  new  File(firstSrcImagePath);   
            BufferedImage  imageOne = ImageIO.read(fileOne);   
            int  width  =  imageOne.getWidth();//图片宽度   
            int  height  =  imageOne.getHeight();//图片高度   
            //从图片中读取RGB   
            int[]  imageArrayOne  =  new  int[width*height];   
            imageArrayOne  =  imageOne.getRGB(0,0,width,height,imageArrayOne,0,width);   
      
            //对第二张图片做相同的处理   
            File  fileTwo  =  new  File(secondSrcImagePath);   
            BufferedImage  imageTwo  =  ImageIO.read(fileTwo);
            int width2 = imageTwo.getWidth();
            int height2 = imageTwo.getHeight();
            int[]   ImageArrayTwo  =  new  int[width2*height2];   
            ImageArrayTwo  =  imageTwo.getRGB(0,0,width,height,ImageArrayTwo,0,width);   
            //ImageArrayTwo  =  imageTwo.getRGB(0,0,width2,height2,ImageArrayTwo,0,width2);
      
            //生成新图片
            //int width3 = (width>width2 || width==width2)?width:width2;
            BufferedImage  imageNew  =  new  BufferedImage(width,height*2,BufferedImage.TYPE_INT_RGB);   
            //BufferedImage  imageNew  =  new  BufferedImage(width3,height+height2,BufferedImage.TYPE_INT_RGB);   
            imageNew.setRGB(0,0,width,height,imageArrayOne,0,width);//设置上半部分的RGB   
            imageNew.setRGB(0,height,width,height,ImageArrayTwo,0,width);//设置下半部分的RGB
            //imageNew.setRGB(0,height,width2,height2,ImageArrayTwo,0,width2);//设置下半部分的RGB   
      
            File  outFile  =  new  File(toPath);   
            ImageIO.write(imageNew,  imageFormat,  outFile);//写图片
        } catch (Exception e) { 
            e.printStackTrace(); 
        } 
    }
   
    /**
     * 纵向拼接一组（多张）图像
     * @param pics 将要拼接的图像数组
     * @param type 写入图像类型
     * @param dst_pic 写入图像路径
     * @return
     */
public  boolean joinImageListVertical(String[] pics, String type, String dst_pic) {  
        try { 
        int len = pics.length; 
            if (len < 1) { 
                System.out.println("pics len < 1"); 
                return false; 
            } 
        File[] src = new File[len]; 
             BufferedImage[] images = new BufferedImage[len]; 
             int[][] imageArrays = new int[len][]; 
             for (int i = 0; i < len; i++) { 
            //System.out.println(i);
            src[i] = new File(pics[i]); 
            images[i] = ImageIO.read(src[i]); 
            int width = images[i].getWidth(); 
            int height = images[i].getHeight(); 
            imageArrays[i] = new int[width * height];// 从图片中读取RGB  
            imageArrays[i] = images[i].getRGB(0, 0, width, height,  imageArrays[i], 0, width); 
        } 
            
        int dst_height = 0; 
        int dst_width = images[0].getWidth(); 
        for (int i = 0; i < images.length; i++) { 
            dst_width = dst_width > images[i].getWidth() ? dst_width : images[i].getWidth(); 
            dst_height += images[i].getHeight(); 
        } 
        //System.out.println(dst_width); 
        //System.out.println(dst_height); 
        if (dst_height < 1) { 
            System.out.println("dst_height < 1"); 
            return false; 
        } 
        /*
         * 生成新图片
         */  
            BufferedImage ImageNew = new BufferedImage(dst_width, dst_height,  BufferedImage.TYPE_INT_RGB); 
            int height_i = 0; 
            for (int i = 0; i < images.length; i++) { 
                ImageNew.setRGB(0, height_i, dst_width, images[i].getHeight(),  imageArrays[i], 0, dst_width); 
                height_i += images[i].getHeight(); 
            } 
            File outFile = new File(dst_pic); 
            ImageIO.write(ImageNew, type, outFile);// 写图片  
        } catch (Exception e) { 
            e.printStackTrace(); 
            return false; 
        } 
        return true; 
    } 
   
    /**
     * 合并图片(按指定初始x、y坐标将附加图片贴到底图之上)
     * @param negativeImagePath 背景图片路径
     * @param additionImagePath 附加图片路径
     * @param x 附加图片的起始点x坐标
     * @param y  附加图片的起始点y坐标
     * @param toPath 图片写入路径
     * @throws IOException
     */
    public void mergeBothImage(String negativeImagePath,String additionImagePath,int x,int y,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,x,y,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将一组图片一次性附加合并到底图上
     * @param negativeImagePath 源图像（底图）路径
     * @param additionImageList 附加图像信息列表
     * @param imageFormat 图像写入格式
     * @param toPath 图像写入路径
     * @throws IOException
     */
    public void mergeImageList(String negativeImagePath,List additionImageList,String imageFormat, String toPath) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
    BufferedImage image=ImageIO.read(is);
    //Graphics g=image.getGraphics();
    Graphics2D g = image.createGraphics();;
    BufferedImage image2 = null;
    if(additionImageList != null){
    for(int i=0;i<additionImageList.size();i++){
    //解析附加图片信息：x坐标、 y坐标、 additionImagePath附加图片路径
    //图片信息存储在一个数组中
    String[] additionImageInfo = (String[]) additionImageList.get(i);
    int x = Integer.parseInt(additionImageInfo[0]);
    int y = Integer.parseInt(additionImageInfo[1]);
    String additionImagePath = additionImageInfo[2];
    //读取文件输入流，并合并图片
    is2 = new FileInputStream(additionImagePath);
    //System.out.println(x+"  :  "+y+"  :  "+additionImagePath);
    image2 = ImageIO.read(is2);
                g.drawImage(image2,x,y,null);
    }
    }
            os = new FileOutputStream(toPath);
            ImageIO.write(image,  imageFormat,  os);//写图片
            //JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            //enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的左上角
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageTopleftcorner(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,0,0,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的右上角
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageToprightcorner(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()-image2.getWidth(),0,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的左下角
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageLeftbottom(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,0,image.getHeight()-image2.getHeight(),null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的左下角
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageRightbottom(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()-image2.getWidth(),image.getHeight()-image2.getHeight(),null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的正中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageCenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()/2-image2.getWidth()/2,image.getHeight()/2-image2.getHeight()/2,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的上边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageTopcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()/2-image2.getWidth()/2,0,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的下边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageBottomcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()/2-image2.getWidth()/2,image.getHeight()-image2.getHeight(),null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的左边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageLeftcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,0,image.getHeight()/2-image2.getHeight()/2,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 将附加图片合并到底图的右边中央
     * @param negativeImagePath 底图路径
     * @param additionImagePath 附加图片路径
     * @param toPath 合成图片写入路径
     * @throws IOException
     */
    public void mergeBothImageRightcenter(String negativeImagePath,String additionImagePath,String toPath ) throws IOException{
    InputStream is= null;
    InputStream is2= null;
    OutputStream os = null;
    try{
    is=new FileInputStream(negativeImagePath);
            is2=new FileInputStream(additionImagePath);
            BufferedImage image=ImageIO.read(is);
            BufferedImage image2=ImageIO.read(is2);
            Graphics g=image.getGraphics();
            g.drawImage(image2,image.getWidth()-image2.getWidth(),image.getHeight()/2-image2.getHeight()/2,null);
            os = new FileOutputStream(toPath);
            JPEGImageEncoder enc=JPEGCodec.createJPEGEncoder(os);
            enc.encode(image);
    }catch(Exception e){
    e.printStackTrace();
    }finally{
    if(os != null){
    os.close();
    }
    if(is2 != null){
    is2.close();
    }
    if(is != null){
    is.close();
    }
    }
    }
   
    /**
     * 图片灰化操作
     * @param srcImage 读取图片路径
     * @param toPath 写入灰化后的图片路径
     * @param imageFormat 图片写入格式
     */
    public void grayImage(String srcImage,String toPath,String imageFormat){
    try{
    BufferedImage src = ImageIO.read(new File(srcImage));
        ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
        ColorConvertOp op = new ColorConvertOp(cs, null);
        src = op.filter(src, null);
        ImageIO.write(src, imageFormat, new File(toPath));
    }catch(Exception e){
    e.printStackTrace();
    }
    }
   
    /**
     * 在源图片上设置水印文字
     * @param srcImagePath 源图片路径
     * @param alpha 透明度（0<alpha<1）
     * @param font 字体（例如：宋体）
     * @param fontStyle 字体格式(例如：普通样式--Font.PLAIN、粗体--Font.BOLD )
     * @param fontSize 字体大小
     * @param color 字体颜色(例如：黑色--Color.BLACK)
     * @param inputWords 输入显示在图片上的文字
     * @param x 文字显示起始的x坐标
     * @param y 文字显示起始的y坐标
     * @param imageFormat 写入图片格式（png/jpg等）
     * @param toPath 写入图片路径
     * @throws IOException
     */
    public void alphaWords2Image(String srcImagePath,float alpha,
    String font,int fontStyle,int fontSize,Color color,
    String inputWords,int x,int y,String imageFormat,String toPath) throws IOException{
    FileOutputStream fos=null;
try {
BufferedImage image = ImageIO.read(new File(srcImagePath));
//创建java2D对象
    Graphics2D g2d=image.createGraphics();
    //用源图像填充背景
    g2d.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null, null);
    //设置透明度
    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
    g2d.setComposite(ac);
    //设置文字字体名称、样式、大小
    g2d.setFont(new Font(font, fontStyle, fontSize));
    g2d.setColor(color);//设置字体颜色
    g2d.drawString(inputWords, x, y); //输入水印文字及其起始x、y坐标
    g2d.dispose();
    fos=new FileOutputStream(toPath);
    ImageIO.write(image, imageFormat, fos);
    } catch (Exception e) {
       e.printStackTrace();
    }finally{
    if(fos!=null){
    fos.close();
    }
    }
    }
   
    /**
     * 在源图像上设置图片水印 
     * ---- 当alpha==1时文字不透明（和在图片上直接输入文字效果一样）
     * @param srcImagePath 源图片路径
     * @param appendImagePath 水印图片路径
     * @param alpha 透明度
     * @param x 水印图片的起始x坐标
     * @param y 水印图片的起始y坐标
     * @param width 水印图片的宽度
     * @param height 水印图片的高度
     * @param imageFormat 图像写入图片格式
     * @param toPath 图像写入路径
     * @throws IOException
     */
    public void alphaImage2Image(String srcImagePath,String appendImagePath,
    float alpha,int x,int y,int width,int height,
    String imageFormat,String toPath) throws IOException{
    FileOutputStream fos = null;
    try {
BufferedImage image = ImageIO.read(new File(srcImagePath));
//创建java2D对象
    Graphics2D g2d=image.createGraphics();
    //用源图像填充背景
    g2d.drawImage(image, 0, 0, image.getWidth(), image.getHeight(), null, null);
    //设置透明度
    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
    g2d.setComposite(ac);
    //设置水印图片的起始x/y坐标、宽度、高度
    BufferedImage appendImage = ImageIO.read(new File(appendImagePath));
    g2d.drawImage(appendImage, x, y, width, height, null, null);
    g2d.dispose();
    fos=new FileOutputStream(toPath);
    ImageIO.write(image, imageFormat, fos);
    } catch (Exception e) {
       e.printStackTrace();
    }finally{
    if(fos!=null){
    fos.close();
    }
    }
    }
   
    /**
     * 画单点 ---- 实际上是画一个填充颜色的圆
     * ---- 以指定点坐标为中心画一个小半径的圆形，并填充其颜色来充当点
     * @param srcImagePath 源图片颜色
     * @param x 点的x坐标
     * @param y 点的y坐标
     * @param width 填充的宽度
     * @param height 填充的高度
     * @param ovalColor 填充颜色
     * @param imageFormat 写入图片格式
     * @param toPath 写入路径
     * @throws IOException
     */
    public void drawPoint(String srcImagePath,int x,int y,int width,int height,Color ovalColor,String imageFormat,String toPath) throws IOException{
    FileOutputStream fos = null;
try {
//获取源图片
BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制连接线
Graphics2D g2d = image.createGraphics();
g2d.setColor(ovalColor);
//填充一个椭圆形
g2d.fillOval(x, y, width, height);
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
} catch (IOException e) {
e.printStackTrace();
}finally{
if(fos!=null){
    fos.close();
    }
}
    }
   
    /**
     * 画一组（多个）点---- 实际上是画一组（多个）填充颜色的圆
     * ---- 以指定点坐标为中心画一个小半径的圆形，并填充其颜色来充当点
     * @param srcImagePath 原图片路径
     * @param pointList 点列表
     * @param width 宽度
     * @param height 高度
     * @param ovalColor 填充颜色
     * @param imageFormat 写入图片颜色
     * @param toPath 写入路径
     * @throws IOException
     */
    public void drawPoints(String srcImagePath,List pointList,int width,int height,Color ovalColor,String imageFormat,String toPath) throws IOException{
    FileOutputStream fos = null;
try {
//获取源图片
BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制连接线
Graphics2D g2d = image.createGraphics();
g2d.setColor(ovalColor);
//填充一个椭圆形
if(pointList != null){
for(int i=0;i<pointList.size();i++){
Point point = (Point)pointList.get(i);
int x = (int) point.getX();
int y = (int) point.getY();
g2d.fillOval(x, y, width, height);
}
}
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
} catch (IOException e) {
e.printStackTrace();
}finally{
if(fos!=null){
    fos.close();
    }
}
    }
   
    /**
     * 画线段
     * @param srcImagePath 源图片路径
     * @param x1 第一个点x坐标
     * @param y1 第一个点y坐标
     * @param x2 第二个点x坐标
     * @param y2 第二个点y坐标
     * @param lineColor 线条颜色
     * @param toPath 图像写入路径
     * @param imageFormat 图像写入格式
     * @throws IOException
     */
    public void drawLine(String srcImagePath,int x1,int y1,int x2,int y2, Color lineColor,String toPath,String imageFormat) throws IOException{
    FileOutputStream fos = null;
try {
//获取源图片
BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制连接线
Graphics2D g2d = image.createGraphics();
g2d.setColor(lineColor);
g2d.drawLine( x1, y1, x2, y2);
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
} catch (IOException e) {
e.printStackTrace();
}finally{
if(fos!=null){
    fos.close();
    }
}
    }
   
    /**
     * 画折线 / 线段
     * ---- 2个点即画线段，多个点画折线
     * @param srcImagePath 源图片路径
     * @param xPoints x坐标数组
     * @param yPoints y坐标数组
     * @param nPoints 点的数量
     * @param lineColor 线条颜色
     * @param toPath 图像写入路径
     * @param imageFormat 图片写入格式
     * @throws IOException
     */
    public void drawPolyline(String srcImagePath,int[] xPoints, int[] yPoints, int nPoints,Color lineColor,String toPath,String imageFormat) throws IOException{
    FileOutputStream fos = null;
try {
//获取源图片
BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制连接线
Graphics2D g2d = image.createGraphics();
//设置线条颜色
g2d.setColor(lineColor);
g2d.drawPolyline(xPoints, yPoints, nPoints);
//图像写出路径
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
} catch (IOException e) {
e.printStackTrace();
}finally{
if(fos!=null){
    fos.close();
    }
}
    }
   
    /**
     * 绘制折线，并突出显示转折点
     * @param srcImagePath 源图片路径
     * @param xPoints x坐标数组
     * @param yPoints y坐标数组
     * @param nPoints 点的数量
     * @param lineColor 连线颜色
     * @param width 点的宽度
     * @param height 点的高度
     * @param ovalColor 点的填充颜色
     * @param toPath 图像写入路径
     * @param imageFormat 图像写入格式
     * @throws IOException
     */
    public void drawPolylineShowPoints(String srcImagePath,int[] xPoints, int[] yPoints, int nPoints,Color lineColor,int width,int height,Color ovalColor,String toPath,String imageFormat) throws IOException{
    FileOutputStream fos = null;
try {
//获取源图片
BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制连接线
Graphics2D g2d = image.createGraphics();
//设置线条颜色
g2d.setColor(lineColor);
//画线条
g2d.drawPolyline(xPoints, yPoints, nPoints);
//设置圆点颜色
g2d.setColor(ovalColor);
//画圆点
if(xPoints != null){
for(int i=0;i<xPoints.length;i++){
int x = xPoints[i];
int y = yPoints[i];
g2d.fillOval(x, y, width, height);
}
}
//图像写出路径
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
} catch (IOException e) {
e.printStackTrace();
}finally{
if(fos!=null){
    fos.close();
    }
}
    }
   
   
    /**
     * 绘制一个由 x 和 y 坐标数组定义的闭合多边形
     * @param srcImagePath 源图片路径
     * @param xPoints x坐标数组
     * @param yPoints y坐标数组
     * @param nPoints 坐标点的个数
     * @param polygonColor 线条颜色
     * @param imageFormat 图像写入格式
     * @param toPath 图像写入路径
     * @throws IOException
     */
    public void drawPolygon(String srcImagePath,int[] xPoints,int[] yPoints,int nPoints,Color polygonColor,String imageFormat,String toPath) throws IOException {
    FileOutputStream fos = null;
    try {
    //获取图片
    BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制闭合多边形
Graphics2D g2d = image.createGraphics();
g2d.setColor(polygonColor);
g2d.drawPolygon(xPoints, yPoints, nPoints);
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
g2d.dispose();
} catch (Exception e) {
e.printStackTrace();
}finally{
if(fos!=null){
fos.close();
}
}
    }
   
    /**
     * 绘制并填充多边形
     * @param srcImagePath 源图像路径
     * @param xPoints x坐标数组
     * @param yPoints y坐标数组
     * @param nPoints 坐标点个数
     * @param polygonColor 多边形填充颜色
     * @param alpha 多边形部分透明度
     * @param imageFormat 写入图形格式
     * @param toPath 写入图形路径
     * @throws IOException
     */
    public void drawAndAlphaPolygon(String srcImagePath,int[] xPoints,int[] yPoints,int nPoints,Color polygonColor,float alpha,String imageFormat,String toPath) throws IOException{
    FileOutputStream fos = null;
    try {
    //获取图片
    BufferedImage image = ImageIO.read(new File(srcImagePath));
//根据xy点坐标绘制闭合多边形
Graphics2D g2d = image.createGraphics();
g2d.setColor(polygonColor);
//设置透明度
    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);
    g2d.setComposite(ac);
g2d.fillPolygon(xPoints, yPoints, nPoints);
fos = new FileOutputStream(toPath);
ImageIO.write(image, imageFormat, fos);
g2d.dispose();
} catch (Exception e) {
e.printStackTrace();
}finally{
if(fos!=null){
fos.close();
}
}
    }
   
   
    public static void main(String[] args)throws Exception{
        OperateImage imageObj = new OperateImage();
       
        /*String srcPath = "D:/test/fileSource/004.jpg";
    String toPath = "D:/test/desk/+e004.jpg";
    int x = 200;
    int y = 300;
    int width = 300;
    int height = 200 ;
    String readImageFormat = "jpg";
    String writeImageFormat = "jpg"*/;
        //imageObj.cropImage(srcPath, toPath, x, y, width, height,readImageFormat,writeImageFormat);//剪切图片
        //imageObj.resizeImage(srcPath, toPath, 400, 400);//按指定的长宽重置图形大小
       //imageObj.reduceImageByRatio(srcPath, toPath, 3, 3);//按指定长和宽的比例缩小图形
       //imageObj.enlargementImageByRatio(srcPath, toPath, 2, 2);//按指定长和宽的比例放大图形
       //imageObj.reduceImageEqualProportion(srcPath, toPath, 4);//长高等比例缩小
        //imageObj.enlargementImageEqualProportion(srcPath, toPath, 2);//长高等比例放大
       /* String negativeImagePath = "D:/test/fileSource/004.jpg";
        String additionImagePath = "D:/test/fileSource/005.jpg";
        int x = 200;
        int y = 200;
        String toPath = "D:/test/desk/004+005-rightcenter.jpg";*/
        //imageObj.mergeBothImage(negativeImagePath, additionImagePath, x, y, toPath); //按指定坐标合并图片
        //imageObj.mergeBothImageTopleftcorner(negativeImagePath, additionImagePath, toPath);//合并到左上角
        //imageObj.mergeBothImageToprightcorner(negativeImagePath, additionImagePath, toPath);//合并到右上角
        //imageObj.mergeBothImageLeftbottom(negativeImagePath, additionImagePath, toPath);//合并到左下角
        //imageObj.mergeBothImageRightbottom(negativeImagePath, additionImagePath, toPath);//合并到右下角
        //imageObj.mergeBothImageCenter(negativeImagePath, additionImagePath, toPath);//合并到正中央
        //imageObj.mergeBothImageTopcenter(negativeImagePath, additionImagePath, toPath);//合并到上边中央
        //imageObj.mergeBothImageBottomcenter(negativeImagePath, additionImagePath, toPath);//合并到下边中央
        //imageObj.mergeBothImageLeftcenter(negativeImagePath, additionImagePath, toPath);//合并到左边中央
        //imageObj.mergeBothImageRightcenter(negativeImagePath, additionImagePath, toPath);//合并到右边中央
   
    /*
    String srcImage = "D:/test/fileSource/001.jpg";
    String toPath = "D:/test/desk/001-gray.jpg";
    String imageFormat = "jpg";
    imageObj.grayImage(srcImage, toPath, imageFormat);//图片灰化
    */   
   
    /*
    String firstSrcImagePath = "D:/test/desk/003.jpg";
    String secondSrcImagePath = "D:/test/desk/004.jpg";
    String imageFormat = "jpg";
    String toPath = "D:/test/desk/003-004-join.jpg";
    imageObj.joinImagesHorizontal(firstSrcImagePath, secondSrcImagePath, imageFormat, toPath);//横向拼接图片
    */
   
    /*
    String firstSrcImagePath = "D:/test/desk/001-002-join.jpg";
    String secondSrcImagePath = "D:/test/desk/003-004-join.jpg";
    String imageFormat = "jpg";
    String toPath = "D:/test/desk/all-join.jpg";
    imageObj.joinImagesVertical(firstSrcImagePath, secondSrcImagePath, imageFormat, toPath);//纵向拼接图片
    */
   
    /*String srcImagePath = "D:/test/fileSource/002.jpg";
    int[] xPoints = {20,100,160,270,500};
    int[] yPoints = {30,150,172,295,615};
    int nPoints = 5;
    String toPath = "D:/test/desk/polygon-002.png";
    imageObj.drawPolygon(srcImagePath, xPoints, yPoints, nPoints, Color.MAGENTA, "jpg", toPath); //根据坐标数组绘制多边形
    */

    /*String srcImagePath = "D:/test/fileSource/004.jpg";
    String appendImagePath = "D:/test/fileSource/005.jpg";
    float alpha = 0.2F;
    String  font = "宋体";
    int fontStyle = Font.PLAIN;
    int fontSize = 32;
    Color color = Color.RED;
    String inputWords = "图片上设置水印文字 ---- 宋体 普通字体 32号字 红色 透明度0.5";
    int x = 20;
    int y = 40;
    String imageFormat = "jpg";
    String toPath = "D:/test/desk/alphaI2I-001.png";*/
    //imageObj.alphaWords2Image(srcImagePath, alpha, font, fontStyle, fontSize, color, inputWords, x, y, imageFormat, toPath); //设置文字水印
    //imageObj.alphaImage2Image(srcImagePath, appendImagePath, alpha, x, y, 300, 200, imageFormat, toPath);//设置图片水印
   
    /*
    String srcImagePath = "D:/test/fileSource/003.jpg";
    int[] xPoints = {100,150,200,240,300};
    int[] yPoints = {200,60,280,160,100};
    int nPoints = 5;
    Color lineColor = Color.RED;
    String toPath = "D:/test/desk/polyline-003.jpg";
    String imageFormat = "jpg";
    imageObj.drawPolyline(srcImagePath, xPoints, yPoints, nPoints, lineColor,toPath, imageFormat);//画折线
    */   
   
    /*
    int x1 = 50;
    int y1 = 100;
    int x2 = 600;
    int y2 = 150;
    Color lineColor = Color.BLUE;
    imageObj.drawLine(srcImagePath, x1, y1, x2, y2, lineColor,toPath, imageFormat);//画线段
    */   
   
    /*
    String srcImagePath = "D:/test/fileSource/002.jpg";
    int x = 400;
    int y = 500;
    int width = 10;
    int height = 10;
    Color ovalColor = Color.RED;
    String imageFormat = "jpg";
    String toPath = "D:/test/desk/point-002.jpg";
    imageObj.drawPoint(srcImagePath, x, y, width, height, ovalColor, imageFormat, toPath);//画一个圆点
    */
   
    /*List pointList = new ArrayList();
    Point p1 = new Point(60,80);
    pointList.add(p1);
    Point p2 = new Point(160,80);
    pointList.add(p2);
    Point p3 = new Point(60,180);
    pointList.add(p3);
    Point p4 = new Point(260,180);
    pointList.add(p4);
    Point p5 = new Point(460,380);
    pointList.add(p5);
    String srcImagePath = "D:/test/fileSource/004.jpg";
    int width = 10;
    int height = 10;
    Color ovalColor = Color.RED;
    String imageFormat = "jpg";
    String toPath = "D:/test/desk/points-004.jpg";
    imageObj.drawPoints(srcImagePath, pointList, width, height, ovalColor, imageFormat, toPath);//画出一组（多个）点
    */  
   
    /*
    int[] xPoints = {50,100,180,400,600};
    int[] yPoints = {200,100,160,300,640};
    int nPoints = 5;
    Color lineColor = Color.PINK;
    String srcImagePath = "D:/test/fileSource/003.jpg";
    String toPath = "D:/test/desk/showpoints-003.jpg";
    imageObj.drawPolylineShowPoints(srcImagePath, xPoints, yPoints, nPoints, lineColor, width, height, ovalColor, toPath, imageFormat);//画折线并突出显示点
    */  
   
    /*
    String srcImagePath ="D:/test/fileSource/004.jpg";
    int[] xPoints ={50,90,180,320,640};
    int[] yPoints ={200,300,120,240,360};
    int nPoints = 5;
    Color polygonColor = Color.PINK;
    float alpha = (float) 0.2;
    String imageFormat ="jpg";
    String toPath ="D:/test/desk/drawalpha-004.jpg";
    imageObj.drawAndAlphaPolygon(srcImagePath, xPoints, yPoints, nPoints, polygonColor, alpha, imageFormat, toPath);
    */
    /*
    String negativeImagePath = "D:/test/fileSource/001.jpg";
    String additionImagePath = "D:/test/fileSource/006.png";
    String  toPath = "D:/test/fileSource/001.jpg";
    long start = System.currentTimeMillis();
    for(int i=0;i<1000;i++){
    Random rand = new Random();
    int x = rand.nextInt(1024);
    int y =  rand.nextInt(768);
    imageObj.mergeBothImage(negativeImagePath, additionImagePath, x, y, toPath);//每次附加合并一张图片(循环若干次)
    }
    long end = System.currentTimeMillis();
    System.out.println(end-start);*/
    //100 -- 45844
    //1000 -- 411156
    /*改进思路：将mergeBothImage方法 修改为mergeImageList方法，
    通过将图片的坐标点装入list容器，然后再取出一来在方法中一次性与图片合并,
    不再每次都打开底图、保存合成图片，关闭流*/

    //叠加组合图像
    /*String negativeImagePath = "D:/test/fileSource/001.jpg";
    String  toPath = "D:/test/fileSource/001.jpg";
    String additionImagePath = "D:/test/fileSource/007.png";
    List additionImageList = new ArrayList();
    int count = 0;
    for(int i=0;i<100;i++){//为什么总是连续生成一样的随机数？？？
    Random rand = new Random();
    int x = rand.nextInt(1020);
    String xStr = x+"";
    int y =  rand.nextInt(760);
    String yStr = y +"";
    String[] str = {xStr,yStr,additionImagePath};
    additionImageList.add(str);
    count++;
    //System.out.println(xStr+"   :     "+yStr);
    }
    System.out.println(count);
    long start = System.currentTimeMillis();
    imageObj.mergeImageList(negativeImagePath, additionImageList,"jpg", toPath);
    long end = System.currentTimeMillis();
    System.out.println(end-start);*/
    //                                第一次        第二次      第三次
    //100张耗时(毫秒) --2003 1792 1869           1747        1871        1793
    //1000张耗时(毫秒) --15334 15200 15236         15903 16028 15545
    //10000张耗时(毫秒) --153010 153340 152673       154978  156506 154854                              
    //如果list.size()<=100,则调用此方法，
    //如果list.size()>100,则调用Jmagick的方法。
   
    /*List iamgePathList = new ArrayList(); // D:/test/16a/
    iamgePathList.add("D:/test/16a/12384_2492.jpg");
    iamgePathList.add("D:/test/16a/12384_2493.jpg");
    iamgePathList.add("D:/test/16a/12384_2494.jpg");
    iamgePathList.add("D:/test/16a/12384_2495.jpg");
    iamgePathList.add("D:/test/16a/12384_2496.jpg");
    iamgePathList.add("D:/test/16a/12384_2497.jpg");
    iamgePathList.add("D:/test/16a/12384_2498.jpg");
    iamgePathList.add("D:/test/16a/12384_2499.jpg");
    iamgePathList.add("D:/test/16a/12384_2500.jpg");
    iamgePathList.add("D:/test/16a/12384_2501.jpg");
    iamgePathList.add("D:/test/16a/12384_2502.jpg");*/
    //String imageFormat = "jpg";
    //String toPath = "D:/test/desk/16a_v1.jpg";
    //imageObj.joinImageListHorizontal(iamgePathList, imageFormat, toPath);
   
    /*String imageFormat = "jpg";
    String[] pics1 = {"D:/test/16a/12384_2502.jpg","D:/test/16a/12384_2501.jpg",
    "D:/test/16a/12384_2500.jpg","D:/test/16a/12384_2499.jpg","D:/test/16a/12384_2498.jpg",
    "D:/test/16a/12384_2497.jpg","D:/test/16a/12384_2496.jpg","D:/test/16a/12384_2495.jpg",
    "D:/test/16a/12384_2494.jpg","D:/test/16a/12384_2493.jpg","D:/test/16a/12384_2492.jpg"};
   
    String[] pics2 = {"D:/test/16a/12385_2502.jpg","D:/test/16a/12385_2501.jpg",
    "D:/test/16a/12385_2500.jpg","D:/test/16a/12385_2499.jpg","D:/test/16a/12385_2498.jpg",
    "D:/test/16a/12385_2497.jpg","D:/test/16a/12385_2496.jpg","D:/test/16a/12385_2495.jpg",
    "D:/test/16a/12385_2494.jpg","D:/test/16a/12385_2493.jpg","D:/test/16a/12385_2492.jpg"};
   
    String[] pics3 = {"D:/test/16a/12386_2502.jpg","D:/test/16a/12386_2501.jpg",
    "D:/test/16a/12386_2500.jpg","D:/test/16a/12386_2499.jpg","D:/test/16a/12386_2498.jpg",
    "D:/test/16a/12386_2497.jpg","D:/test/16a/12386_2496.jpg","D:/test/16a/12386_2495.jpg",
    "D:/test/16a/12386_2494.jpg","D:/test/16a/12386_2493.jpg","D:/test/16a/12386_2492.jpg"};
   
    String[] pics4 = {"D:/test/16a/12387_2502.jpg","D:/test/16a/12387_2501.jpg",
    "D:/test/16a/12387_2500.jpg","D:/test/16a/12387_2499.jpg","D:/test/16a/12387_2498.jpg",
    "D:/test/16a/12387_2497.jpg","D:/test/16a/12387_2496.jpg","D:/test/16a/12387_2495.jpg",
    "D:/test/16a/12387_2494.jpg","D:/test/16a/12387_2493.jpg","D:/test/16a/12387_2492.jpg"};
   
    String[] pics5 = {"D:/test/16a/12388_2502.jpg","D:/test/16a/12388_2501.jpg",
    "D:/test/16a/12388_2500.jpg","D:/test/16a/12388_2499.jpg","D:/test/16a/12388_2498.jpg",
    "D:/test/16a/12388_2497.jpg","D:/test/16a/12388_2496.jpg","D:/test/16a/12388_2495.jpg",
    "D:/test/16a/12388_2494.jpg","D:/test/16a/12388_2493.jpg","D:/test/16a/12388_2492.jpg"};
   
    String[] pics6 = {"D:/test/16a/12389_2502.jpg","D:/test/16a/12389_2501.jpg",
    "D:/test/16a/12389_2500.jpg","D:/test/16a/12389_2499.jpg","D:/test/16a/12389_2498.jpg",
    "D:/test/16a/12389_2497.jpg","D:/test/16a/12389_2496.jpg","D:/test/16a/12389_2495.jpg",
    "D:/test/16a/12389_2494.jpg","D:/test/16a/12389_2493.jpg","D:/test/16a/12389_2492.jpg"};
   
    String toPath1 = "D:/test/desk/16a_v1.jpg";
    String toPath2 = "D:/test/desk/16a_v2.jpg";
    String toPath3 = "D:/test/desk/16a_v3.jpg";
    String toPath4 = "D:/test/desk/16a_v4.jpg";
    String toPath5 = "D:/test/desk/16a_v5.jpg";
    String toPath6 = "D:/test/desk/16a_v6.jpg";
   
    String[] pics7 = {toPath1,toPath2,toPath3,toPath4,toPath5,toPath6};
    String toPath7 = "D:/test/desk/16a_h1.jpg";
   
    long start = System.currentTimeMillis();
    imageObj.joinImageListVertical(pics1, imageFormat, toPath1);
    imageObj.joinImageListVertical(pics2, imageFormat, toPath2);
    imageObj.joinImageListVertical(pics3, imageFormat, toPath3);
    imageObj.joinImageListVertical(pics4, imageFormat, toPath4);
    imageObj.joinImageListVertical(pics5, imageFormat, toPath5);
    imageObj.joinImageListVertical(pics6, imageFormat, toPath6);
   
    imageObj.joinImageListHorizontal(pics7, imageFormat, toPath7);
    long end = System.currentTimeMillis();
    System.out.println(end-start);*/
   
    String str = "北京\n上海\n广州\n深圳";
    System.out.println(str);
    String path = "c:/relevantdata.txt";
    FileOutputStream fops = new FileOutputStream(path);
    fops.write(str.getBytes());
   
    BufferedReader inputStream = new BufferedReader(new FileReader(new File(path)));
    String mrMsg = "";
    while((mrMsg = inputStream.readLine())!=null){
    System.out.println(mrMsg);
    }
    }
    //数量 11 11x6
    //纵向 375
    //横向 391 3250
}


以上为个人对java ImageIO处理图形的一些常用的方法进行的封装。全部测试通过，main方法中的均为测试代码，如果想用这个图像处理类，可以参考mian方法的例子。
另外代码中有些地方需要改进，效率也需要进一步提高。
希望给大家带来方便~