java操作图片.doc

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 $java.homelibrt.jar;$java.homelibjce.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 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 intwidth*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 intwidth2*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 = (heightheight2 | 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 Filelen; BufferedImage images = new BufferedImagelen; int imageArrays = new intlen; for (int i = 0; i len; i+) srci = new File(picsi); imagesi = ImageIO.read(srci); int width = imagesi.getWidth(); int height = imagesi.getHeight(); imageArraysi = new intwidth * height;/ 从图片中读取RGB imageArraysi = imagesi.getRGB(0, 0, width, height, imageArraysi, 0, width); int dst_width = 0; int dst_height = images0.getHeight(); for (int i = 0; i imagesi.getHeight() ? dst_height : imagesi.getHeight(); dst_width += imagesi.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 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 Filelen; BufferedImage images = new BufferedImagelen; int imageArrays = new intlen; for (int i = 0; i len; i+) /System.out.println(i); srci = new File(picsi); imagesi = ImageIO.read(srci); int width = imagesi.getWidth(); int height = imagesi.getHeight(); imageArraysi = new intwidth * height;/ 从图片中读取RGB imageArraysi = imagesi.getRGB(0, 0, width, height, imageArraysi, 0, width); int dst_height = 0; int dst_width = images0.getWidth(); for (int i = 0; i imagesi.getWidth() ? dst_width : imagesi.getWidth(); dst_height += imagesi.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, imagesi.getHeight(), imageArraysi, 0, dst_width); height_i += imagesi.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.dr