java操作图片

package com.hy.grahpic;

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 zfwang

* 修改日期 2015-9-7

* 使用技巧：注意参数即可、配置相关架包 */

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

* 注意事项： */

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

* 注意事项：1.缩小倍率必须>1；2.jar包处理，在pom文件引入rt、jce两个架包（jdk安装后的lib中）

org.apache.maven.plugins maven-compiler-plugin 2.3.2

${java-version} ${java-version} UTF-8

${java.home}\\lib\\rt.jar;${java.home}\\lib\\jce.jar */

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 widthRatio,int heightRatio) throws IOException{ FileOutputStream out = null; try{ //读入文件

File file = new File(srcImagePath);

srcImagePath,String toImagePath,int

// 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 = BufferedImage(width*2,height,BufferedImage.TYPE_INT_RGB); //BufferedImage imageNew = BufferedImage(width+width2,height3,BufferedImage.TYPE_INT_RGB);

new new

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(\ 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(\ 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 = BufferedImage(width,height*2,BufferedImage.TYPE_INT_RGB); //BufferedImage imageNew = BufferedImage(width3,height+height2,BufferedImage.TYPE_INT_RGB);

=

= =

new new

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(\ 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(\ 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 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,String

//解析附加图片信息：x坐标、 y坐标、 additionImagePath附加图

//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+\ : \ : \ 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 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();

negativeImagePath,String 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

* @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, g2d.setComposite(ac);

//设置文字字体名称、样式、大小

g2d.setFont(new Font(font, fontStyle, fontSize));

alpha);

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, g2d.setComposite(ac);

alpha);

//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

} /**

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

}

//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 = \004.jpg\ String toPath = \ int x = 200; int y = 300; int width = 300; int height = 200 ; String readImageFormat = \ String writeImageFormat = \ //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 = \004.jpg\ String additionImagePath = \005.jpg\ int x = 200; int y = 200;

String toPath = \004+005-rightcenter.jpg\

//imageObj.mergeBothImage(negativeImagePath, additionImagePath, x, y, toPath); //按指定坐标合并图片

//imageObj.mergeBothImageTopleftcorner(negativeImagePath, toPath);//合并到左上角

//imageObj.mergeBothImageToprightcorner(negativeImagePath, toPath);//合并到右上角

//imageObj.mergeBothImageLeftbottom(negativeImagePath,

additionImagePath, additionImagePath, 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, toPath);//合并到上边中央

//imageObj.mergeBothImageBottomcenter(negativeImagePath,

additionImagePath, 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 = \001.jpg\ String toPath = \001-gray.jpg\ String imageFormat = \ imageObj.grayImage(srcImage, toPath, imageFormat);//图片灰化 */ /* String firstSrcImagePath = \003.jpg\ String secondSrcImagePath = \004.jpg\ String imageFormat = \ String toPath = \003-004-join.jpg\ imageObj.joinImagesHorizontal(firstSrcImagePath, secondSrcImagePath, imageFormat, toPath);//横向拼接图片

*/ /*

String firstSrcImagePath = \001-002-join.jpg\String secondSrcImagePath = \003-004-join.jpg\String imageFormat = \

String toPath = \

imageObj.joinImagesVertical(firstSrcImagePath, secondSrcImagePath, imageFormat,

toPath);//纵向拼接图片 */ /*String srcImagePath = \002.jpg\ int[] xPoints = {20,100,160,270,500}; int[] yPoints = {30,150,172,295,615}; int nPoints = 5; String toPath = \ imageObj.drawPolygon(srcImagePath, xPoints, yPoints, nPoints, Color.MAGENTA, \toPath); //根据坐标数组绘制多边形 */ /*String srcImagePath = \004.jpg\ String appendImagePath = \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 = \ String toPath = \ //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 = \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 = \ String imageFormat = \ 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 = \002.jpg\ int x = 400; int y = 500; int width = 10; int height = 10; Color ovalColor = Color.RED; String imageFormat = \ String toPath = \ 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 = \004.jpg\ int width = 10; int height = 10; Color ovalColor = Color.RED;

String imageFormat = \ String toPath = \ 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 = \003.jpg\ String toPath = \ imageObj.drawPolylineShowPoints(srcImagePath, xPoints, yPoints, nPoints, lineColor, width, height, ovalColor, toPath, imageFormat);//画折线并突出显示点 */ /* String srcImagePath =\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 =\ String toPath =\ imageObj.drawAndAlphaPolygon(srcImagePath, xPoints, yPoints, nPoints, polygonColor, alpha, imageFormat, toPath); */ /* String negativeImagePath = \001.jpg\ String additionImagePath = \006.png\ String toPath = \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 = \001.jpg\String toPath = \001.jpg\

String additionImagePath = \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+\ : \}

System.out.println(count);

long start = System.currentTimeMillis();

imageObj.mergeImageList(negativeImagePath, additionImageList,\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)

16028 15545

--15334

15200

15236 15903

//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(\ iamgePathList.add(\ iamgePathList.add(\ iamgePathList.add(\ iamgePathList.add(\ iamgePathList.add(\

iamgePathList.add(\ iamgePathList.add(\ iamgePathList.add(\ iamgePathList.add(\ iamgePathList.add(\ //String imageFormat = \ //String toPath = \ //imageObj.joinImageListHorizontal(iamgePathList, imageFormat, toPath); /*String imageFormat = \ String[] pics1 = {\ \ \ \; String[] pics2 = {\ \ \ \; String[] pics3 = {\ \ \ \; String[] pics4 = {\ \ \ \

; String[] pics5 = {\ \ \ \; String[] pics6 = {\ \ \ \; String toPath1 = \ String toPath2 = \ String toPath3 = \ String toPath4 = \ String toPath5 = \ String toPath6 = \ String[] pics7 = {toPath1,toPath2,toPath3,toPath4,toPath5,toPath6}; String toPath7 = \ 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 = \

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 //纵向 //横向 }

11 11x6 375

391

3250

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