给图片添加图片水印、文字水印、马赛克

给图片添加图片水印、文字水印、马赛克

转载于:https://www.jb51.net/article/133296.htm
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
public class demo {

  public static void main(String[] args) {
	    String output = "E:/images/";
	    String source = "E:/images/6.jpg";  //源图片路径
	    String icon = "E:/images/icon.png"; //覆盖图片路径
	    String imageName = "mark_image"; //图片名称
	    String imageType = "jpg"; //图片类型jpg,jpeg,png,gif
	    String text = "加水印了";
	    int size = 4;  //马赛克大小
	    Integer degree = null; //水印旋转角度-45,null表示不旋转
	    String result = null;
	    //给图片添加图片水印
	    //result = demo .markImageByMoreIcon(icon,source,output,imageName,imageType,degree);

// result = demo.markImageBySingleIcon(icon, source, output, imageName, imageType, degree);
// //给图片添加文字水印
// result = demo.markImageByMoreText(source,output,imageName,imageType,Color.red,text,degree);
// result =demo.markImageBySingleText(source,output,imageName,imageType,Color.red,text,degree);
// //给图片打马赛克
result = demo.markImageByMosaic(source,output,imageName,imageType,size);
System.out.println(result);
}
/**
* 给图片不同位置添加多个图片水印、可设置水印图片旋转角度
* @param icon 水印图片路径(如:F:/images/icon.png)
* @param source 没有加水印的图片路径(如:F:/images/6.jpg)
* @param output 加水印后的图片路径(如:F:/images/)
* @param imageName 图片名称(如:11111)
* @param imageType 图片类型(如:jpg)
* @param degree 水印图片旋转角度,为null表示不旋转
/
public static String markImageByMoreIcon(String icon,String source,String output,String imageName,String imageType,Integer degree) {
String result = “添加图片水印出错”;
try {
File file = new File(source);
File ficon = new File(icon);
if (!file.isFile()) {
return source + " 不是一个图片文件!";
}
//将icon加载到内存中
Image ic = ImageIO.read(ficon);
//icon高度
int icheight = ic.getHeight(null);
//将源图片读到内存中
Image img = ImageIO.read(file);
//图片宽
int width = img.getWidth(null);
//图片高
int height = img.getHeight(null);
BufferedImage bi = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
//创建一个指定 BufferedImage 的 Graphics2D 对象
Graphics2D g = bi.createGraphics();
//x,y轴默认是从0坐标开始
int x = 0;
int y = 0;
//默认两张水印图片的间隔高度是水印图片的1/3
int temp = icheight/3;
int space = 1;
if(height>=icheight){
space = height/icheight;
if(space>=2){
temp = y = icheight/2;
if(space1||space0){
x = 0;
y = 0;
}
}
}else{
x = 0;
y = 0;
}
//设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
//呈现一个图像,在绘制前进行从图像空间到用户空间的转换
g.drawImage(img.getScaledInstance(width,height,Image.SCALE_SMOOTH),0,0,null);
for(int i=0;i<space;i++){
if (null != degree) {
//设置水印旋转
g.rotate(Math.toRadians(degree),(double) bi.getWidth() / 2, (double) bi.getHeight() / 2);
}
//水印图象的路径 水印一般为gif或者png的,这样可设置透明度
ImageIcon imgIcon = new ImageIcon(icon);
//得到Image对象。
Image con = imgIcon.getImage();
//透明度,最小值为0,最大值为1
float clarity = 0.6f;
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,clarity));
//表示水印图片的坐标位置(x,y)
//g.drawImage(con, 300, 220, null);
g.drawImage(con, x, y, null);
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
y+=(icheight+temp);
}
g.dispose();
File sf = new File(output, imageName+"."+imageType);
ImageIO.write(bi, imageType, sf); // 保存图片
result = “图片完成添加Icon水印”;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/
*
* 给图片添加单个图片水印、可设置水印图片旋转角度
* @param icon 水印图片路径(如:F:/images/icon.png)
* @param source 没有加水印的图片路径(如:F:/images/6.jpg)
* @param output 加水印后的图片路径(如:F:/images/)
* @param imageName 图片名称(如:11111)
* @param imageType 图片类型(如:jpg)
* @param degree 水印图片旋转角度,为null表示不旋转
/
public static String markImageBySingleIcon(String icon,String source,String output,String imageName,String imageType,Integer degree) {
String result = “添加图片水印出错”;
try {
File file = new File(source);
File ficon = new File(icon);
if (!file.isFile()) {
return source + " 不是一个图片文件!";
}
//将icon加载到内存中
Image ic = ImageIO.read(ficon);
//icon高度
int icheight = ic.getHeight(null);
//将源图片读到内存中
Image img = ImageIO.read(file);
//图片宽
int width = img.getWidth(null);
//图片高
int height = img.getHeight(null);
BufferedImage bi = new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
//创建一个指定 BufferedImage 的 Graphics2D 对象
Graphics2D g = bi.createGraphics();
//x,y轴默认是从0坐标开始
int x = 0;
int y = (height/2)-(icheight/2);
//设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
//呈现一个图像,在绘制前进行从图像空间到用户空间的转换
g.drawImage(img.getScaledInstance(width,height,Image.SCALE_SMOOTH),0,0,null);
if (null != degree) {
//设置水印旋转
g.rotate(Math.toRadians(degree),(double) bi.getWidth() / 2, (double) bi.getHeight() / 2);
}
//水印图象的路径 水印一般为gif或者png的,这样可设置透明度
ImageIcon imgIcon = new ImageIcon(icon);
//得到Image对象。
Image con = imgIcon.getImage();
//透明度,最小值为0,最大值为1
float clarity = 0.6f;
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,clarity));
//表示水印图片的坐标位置(x,y)
//g.drawImage(con, 300, 220, null);
g.drawImage(con, x, y, null);
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
g.dispose();
File sf = new File(output, imageName+"."+imageType);
ImageIO.write(bi, imageType, sf); // 保存图片
result = “图片完成添加Icon水印”;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/
*
* 给图片添加多个文字水印、可设置水印文字旋转角度
* @param source 需要添加水印的图片路径(如:F:/images/6.jpg)
* @param outPut 添加水印后图片输出路径(如:F:/images/)
* @param imageName 图片名称(如:11111)
* @param imageType 图片类型(如:jpg)
* @param color 水印文字的颜色
* @param word 水印文字
* @param degree 水印文字旋转角度,为null表示不旋转
/
public static String markImageByMoreText(String source,String output,String imageName,String imageType,Color color,String word,Integer degree) {
String result = “添加文字水印出错”;
try {
//读取原图片信息
File file = new File(source);
if (!file.isFile()) {
return file + " 不是一个图片文件!";
}
Image img = ImageIO.read(file);
//图片宽
int width = img.getWidth(null);
//图片高
int height = img.getHeight(null);
//文字大小
int size = 50;
//加水印
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
g.drawImage(img, 0, 0, width, height, null);
//设置水印字体样式
Font font = new Font(“宋体”, Font.PLAIN, size);
//根据图片的背景设置水印颜色
g.setColor(color);
int x = width/3;
int y = size;
int space = height/size;
for(int i=0;i<space;i++){
//如果最后一个坐标的y轴比height高,直接退出
if((y+size)>height){
break;
}
if (null != degree) {
//设置水印旋转
g.rotate(Math.toRadians(degree),(double) bi.getWidth() / 2, (double) bi.getHeight() / 2);
}
g.setFont(font);
//水印位置
g.drawString(word, x, y);
y+=(2
size);
}
g.dispose();
//输出图片
File sf = new File(output, imageName+"."+imageType);
ImageIO.write(bi, imageType, sf); // 保存图片
result = “图片完成添加Word水印”;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* 给图片添加单个文字水印、可设置水印文字旋转角度
* @param source 需要添加水印的图片路径(如:F:/images/6.jpg)
* @param outPut 添加水印后图片输出路径(如:F:/images/)
* @param imageName 图片名称(如:11111)
* @param imageType 图片类型(如:jpg)
* @param color 水印文字的颜色
* @param word 水印文字
* @param degree 水印文字旋转角度,为null表示不旋转
/
public static String markImageBySingleText(String source,String output,String imageName,String imageType,Color color,String word,Integer degree) {
String result = “添加文字水印出错”;
try {
//读取原图片信息
File file = new File(source);
if (!file.isFile()) {
return file + " 不是一个图片文件!";
}
Image img = ImageIO.read(file);
int width = img.getWidth(null);
int height = img.getHeight(null);
//加水印
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
g.drawImage(img, 0, 0, width, height, null);
//设置水印字体样式
Font font = new Font(“宋体”, Font.PLAIN, 50);
//根据图片的背景设置水印颜色
g.setColor(color);
if (null != degree) {
//设置水印旋转
g.rotate(Math.toRadians(degree),(double) bi.getWidth() / 2, (double) bi.getHeight() / 2);
}
g.setFont(font);
int x = width/3;
int y = height/2;
//水印位置
g.drawString(word, x, y);
g.dispose();
//输出图片
File sf = new File(output, imageName+"."+imageType);
ImageIO.write(bi, imageType, sf); // 保存图片
result = “图片完成添加Word水印”;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/
*
* 给图片加马赛克
* @param source 原图片路径(如:F:/images/6.jpg)
* @param output 打马赛克后,图片保存的路径(如:F:/images/)
* @param imageName 图片名称(如:11111)
* @param imageType 图片类型(如:jpg)
* @param size 马赛克尺寸,即每个矩形的宽高
* @return
*/
public static String markImageByMosaic(String source,String output,String imageName,String imageType,int size){
String result = “图片打马赛克出错”;
try{
File file = new File(source);
if (!file.isFile()) {
return file + " 不是一个图片文件!";
}
BufferedImage img = ImageIO.read(file); // 读取该图片
int width = img.getWidth(null); //原图片宽
int height = img.getHeight(null); //原图片高
BufferedImage bi = new BufferedImage(width,height, BufferedImage.TYPE_INT_RGB);
//马赛克格尺寸太大或太小
if (width < size || height < size) {
return “马赛克格尺寸太大”;
}
if(size<=0){
return “马赛克格尺寸太小”;
}
int xcount = 0; //x方向绘制个数
int ycount = 0; //y方向绘制个数
if (width % size == 0) {
xcount = width / size;
} else {
xcount = width / size + 1;
}
if (height % size == 0) {
ycount = height / size;
} else {
ycount = height / size + 1;
}
int x = 0; //x坐标
int y = 0;
//y坐标
//绘制马赛克(绘制矩形并填充颜色)
Graphics2D g = bi.createGraphics();
for (int i = 0; i < xcount; i++) {
for (int j = 0; j < ycount; j++) {
//马赛克矩形格大小
int mwidth = size;
int mheight = size;
if(i==xcount-1){ //横向最后一个不够一个size
mwidth = width-x;
}
if(j == ycount-1){ //纵向最后一个不够一个size
mheight = height-y;
}
//矩形颜色取中心像素点RGB值
int centerX = x;
int centerY = y;
if (mwidth % 2 == 0) {
centerX += mwidth / 2;
} else {
centerX += (mwidth - 1) / 2;
}
if (mheight % 2 == 0) {
centerY += mheight / 2;
} else {
centerY += (mheight - 1) / 2;
}
Color color = new Color(img.getRGB(centerX, centerY));
g.setColor(color);
g.fillRect(x, y, mwidth, mheight);
y = y + size;// 计算下一个矩形的y坐标
}
y = 0;// 还原y坐标
x = x + size;// 计算x坐标
}
g.dispose();
File sf = new File(output, imageName+"."+imageType);
ImageIO.write(bi, imageType, sf); // 保存图片
result = “打马赛克成功”;
}catch(Exception e){
e.printStackTrace();
}
return result;
}
}

猜你喜欢

转载自blog.csdn.net/qq_33271461/article/details/84971863