java圖片添加水印實例代碼分享。本站提示廣大學習愛好者：（java圖片添加水印實例代碼分享）文章只能為提供參考，不一定能成為您想要的結果。以下是java圖片添加水印實例代碼分享正文
本文為年夜家引見了java圖片添加水印實例代碼，java完成水印照樣異常便利的，水印可所以圖片或許文字，詳細內容以下
package michael.io.image;
import java.awt.AlphaComposite;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageDecoder;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
/**
* 圖片水印
* @blog http://sjsky.iteye.com
* @author Michael
*/
public class ImageMarkLogoByIcon {
/**
* @param args
*/
public static void main(String[] args) {
String srcImgPath = "d:/test/michael/myblog_01.png";
String iconPath = "d:/test/michael/blog_logo.png";
String targerPath = "d:/test/michael/img_mark_icon.jpg";
String targerPath2 = "d:/test/michael/img_mark_icon_rotate.jpg";
// 給圖片添加水印
ImageMarkLogoByIcon.markImageByIcon(iconPath, srcImgPath, targerPath);
// 給圖片添加水印,水印扭轉-45
ImageMarkLogoByIcon.markImageByIcon(iconPath, srcImgPath, targerPath2,
-45);
}
/**
* 給圖片添加水印
* @param iconPath 水印圖片途徑
* @param srcImgPath 源圖片途徑
* @param targerPath 目的圖片途徑
*/
public static void markImageByIcon(String iconPath, String srcImgPath,
String targerPath) {
markImageByIcon(iconPath, srcImgPath, targerPath, null);
}
/**
* 給圖片添加水印、可設置水印圖片扭轉角度
* @param iconPath 水印圖片途徑
* @param srcImgPath 源圖片途徑
* @param targerPath 目的圖片途徑
* @param degree 水印圖片扭轉角度
*/
public static void markImageByIcon(String iconPath, String srcImgPath,
String targerPath, Integer degree) {
OutputStream os = null;
try {
Image srcImg = ImageIO.read(new File(srcImgPath));
BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
// 獲得畫筆對象
// Graphics g= buffImg.getGraphics();
Graphics2D g = buffImg.createGraphics();
// 設置對線段的鋸齒狀邊沿處置
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(srcImg.getScaledInstance(srcImg.getWidth(null), srcImg
.getHeight(null), Image.SCALE_SMOOTH), 0, 0, null);
if (null != degree) {
// 設置水印扭轉
g.rotate(Math.toRadians(degree),
(double) buffImg.getWidth() / 2, (double) buffImg
.getHeight() / 2);
}
// 水印圖像的途徑 水印普通為gif或許png的，如許可設置通明度
ImageIcon imgIcon = new ImageIcon(iconPath);
// 獲得Image對象。
Image img = imgIcon.getImage();
float alpha = 0.5f; // 通明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
alpha));
// 表現水印圖片的地位
g.drawImage(img, 150, 300, null);
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
g.dispose();
os = new FileOutputStream(targerPath);
// 生成圖片
ImageIO.write(buffImg, "JPG", os);
System.out.println("圖片完成添加Icon印章。。。。。。");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
再為年夜家分享一例：
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import javax.imageio.ImageIO;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public final class ImageUtils {
public ImageUtils() {
}
/**
* public final static String getPressImgPath() { return ApplicationContext
* .getRealPath("/template/data/util/shuiyin.gif"); }
*/
/**
* 把圖片印刷到圖片上
*
* @param pressImg --
* 水印文件
* @param targetImg --
* 目的文件
* @param x
* --x坐標
* @param y
* --y坐標
*/
public final static void pressImage(String pressImg, String targetImg,
int x, int y) {
try {
//目的文件
File _file = new File(targetImg);
Image src = ImageIO.read(_file);
int wideth = src.getWidth(null);
int height = src.getHeight(null);
BufferedImage image = new BufferedImage(wideth, height,
BufferedImage.TYPE_INT_RGB);
Graphics g = image.createGraphics();
g.drawImage(src, 0, 0, wideth, height, null);
//水印文件
File _filebiao = new File(pressImg);
Image src_biao = ImageIO.read(_filebiao);
int wideth_biao = src_biao.getWidth(null);
int height_biao = src_biao.getHeight(null);
g.drawImage(src_biao, (wideth - wideth_biao) / 2,
(height - height_biao) / 2, wideth_biao, height_biao, null);
//水印文件停止
g.dispose();
FileOutputStream out = new FileOutputStream(targetImg);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 打印文字水印圖片
*
* @param pressText
* --文字
* @param targetImg --
* 目的圖片
* @param fontName --
* 字體名
* @param fontStyle --
* 字體款式
* @param color --
* 字體色彩
* @param fontSize --
* 字體年夜小
* @param x --
* 偏移量
* @param y
*/
public static void pressText(String pressText, String targetImg,
String fontName, int fontStyle, int color, int fontSize, int x,
int y) {
try {
File _file = new File(targetImg);
Image src = ImageIO.read(_file);
int wideth = src.getWidth(null);
int height = src.getHeight(null);
BufferedImage image = new BufferedImage(wideth, height,
BufferedImage.TYPE_INT_RGB);
Graphics g = image.createGraphics();
g.drawImage(src, 0, 0, wideth, height, null);
g.setColor(Color.RED);
g.setFont(new Font(fontName, fontStyle, fontSize));
g.drawString(pressText, wideth - fontSize - x, height - fontSize
/ 2 - y);
g.dispose();
FileOutputStream out = new FileOutputStream(targetImg);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
} catch (Exception e) {
System.out.println(e);
}
}
public static void main(String[] args) {
pressImage("F:/logo.png", "F:/123.jpg", 0, 0);
}
}
願望本文所述對年夜家用java說話完成圖片添加水印有所贊助。
