java 图片压缩加水印

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java 图片压缩加水印

java-图片加水印及缩放

package com.gwi.util;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import javax.imageio.ImageIO;

import kiosk.util.KDate;

import org.apache.log4j.Logger;

/**

* 电子印章合成(加时间戳)

*

* @author ms

*

*/

public class SealImgSyntheticUtil {

private static Logger logger = Logger.getLogger(SealImgSyntheticUtil.class);

public static final int IMG_WIDTH = 180;//缩放图片宽

public static final int IMG_HEIGHT = 180;//缩放图片高

public static final String IMG_TYPE = "jpg";

/**

* 图片加文字

* @param srcImgPath 原图路径

* @param tarImgPath 新图路径

* @param waterMarkContent 水印内容

* @param markContentColor 水印颜色

* @param font 字体

* @param x 水印位置x

* @param y 水印位置y

*/

public void addWaterMark(String srcImgPath, String tarImgPath,String waterMarkContent, Color markContentColor, Font font,int x,int y,String imageType) {

try {

//文件转化为图片

File srcImgFile = new File(srcImgPath);

Image srcImg = ImageIO.read(srcImgFile);

int srcImgWidth = srcImg.getWidth(null);

int srcImgHeight = srcImg.getHeight(null);

//设置图片属性

BufferedImage bufImg = new BufferedImage(srcImgWidth, srcImgHeight,BufferedImage.TYPE_INT_RGB);

Graphics2D g = bufImg.createGraphics();

g.drawImage(srcImg, 0, 0, srcImgWidth, srcImgHeight, null);

g.setColor(markContentColor);

g.setFont(font);

//水印位置设置

g.drawString(waterMarkContent, x, y);

g.dispose();

//图片输出

writeImage(tarImgPath,bufImg, imageType);

} catch (Exception e) {

logger.error("合成电子印章错误：", e);

}

}

/**

* 图片缩小

* @param originalImage 原图

* @param type

* @return

*/

public void resizeImage(BufferedImage originalImage,String imageType,int type,String tarImgPath) {

try {

BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_HEIGHT,type);

Graphics2D g = resizedImage.createGraphics();

g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_HEIGHT, null);

g.dispose();

writeImage(tarImgPath,resizedImage, imageType);

} catch (Exception e) {

logger.error("合成电子印章错误：", e);

}

}

/**

* 输出图片

* @param tarImgPath 图片存放位置

* @param bufImg

* @param imageType

*/

public static void writeImage(String tarImgPath,BufferedImage bufImg,String imageType){

FileOutputStream outImgStream;

try {

outImgStream = new FileOutputStream(tarImgPath);

ImageIO.write(bufImg, imageType, outImgStream);

outImgStream.flush();

outImgStream.close();

} catch (Exception e) {

logger.error("合成电子印章错误：", e);

}

}

public static void main(String[] args) {

try {

Font font = new Font("微软雅黑", Font.PLAIN, 20);// 水印字体50

String srcImgPath = "D:\\timg.jpg"; // 源图片地址

String tarImgPath = "D:\\t.jpg"; // 待存储的地址

String tarImgPath2 = "D:\\ target.jpg"; //缩放图片地址

String waterMarkContent =KDate.getDateTime(null,"yyyyMMdd");// 水印内容

Color color = new Color(255, 0, 0, 255);

new SealImgSyntheticUtil().addWaterMark(srcImgPath, tarImgPath,waterMarkContent, color, font,80,180,IMG_TYPE);

File file = new File(tarImgPath);

BufferedImage originalImage = ImageIO.read(file);

int type = originalImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : originalImage.getType();

new SealImgSyntheticUtil().resizeImage(originalImage, IMG_TYPE,type,tarImgPath2);

} catch (IOException e) {

System.out.println(e);

}

}

}