package com.jiuy.core.util;
import java.awt.AlphaComposite;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
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.JPEGImageEncoder;
/**
* 圖片水印
*/
@SuppressWarnings("restriction")
public class WaterMarker {
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
String srcImgPath = "e:/2.jpg";
String iconPath = "e:/3.png";
String targerPath = "e:/img_mark_icon2.jpg";
long startTime = System.currentTimeMillis();
byte[] bytes = image2Bytes(iconPath);
// 給圖片添加水印
WaterMarker.markImageByIcon(iconPath, srcImgPath, targerPath);
InputStream inputStream = new FileInputStream(srcImgPath);
WaterMarker.markImageByIcon(inputStream, bytes);
System.out.println("markImageByIcon1 time: " + (System.currentTimeMillis() - startTime));
}
static byte[] image2Bytes(String imgSrc) throws Exception
{
FileInputStream fin = new FileInputStream(new File(imgSrc));
//可能溢出,簡單起見就不考慮太多,如果太大就要另外想辦法,比如一次傳入固定長度byte[]
byte[] bytes = new byte[fin.available()];
//將文件內容寫入字節數組,提供測試的case
fin.read(bytes);
fin.close();
return bytes;
}
/**
* 給圖片添加水印
*
* @param iconPath
* 水印圖片路徑
* @param srcImgPath
* 源圖片路徑
* @param targerPath
* 目標圖片路徑
*/
public static void markImageByIcon(String iconPath, String srcImgPath, String targerPath) {
markImageByIcon(iconPath, srcImgPath, targerPath, null);
}
/**
* 給圖片添加水印、可設置水印圖片旋轉角度
*
* @param iconPath
* 水印圖片路徑
* @param srcImgPath
* 源圖片路徑
* @param targerPath
* 目標圖片路徑
* @param degree
* 水印圖片旋轉角度
*/
public static void markImageByIcon(String iconPath, String srcImgPath, String targerPath, Integer degree) {
OutputStream os = null;
try {
Image srcImg = ImageIO.read(new File(srcImgPath));
int width = srcImg.getWidth(null);
int height = srcImg.getHeight(null);
BufferedImage buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// 得到畫筆對象
Graphics2D g = buffImg.createGraphics();
// 設置對線段的鋸齒狀邊緣處理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(srcImg.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
// 水印圖象的路徑 水印一般爲gif或者png的,這樣可設置透明度
ImageIcon imgIcon = new ImageIcon(iconPath);
// 得到Image對象。
Image img = imgIcon.getImage();
float alpha = 0.5f; // 透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha));
System.out.println("width,height: " + width + "," + height);
// 表示水印圖片的位置
g.drawImage(img, width / 4, height / 8, null);
g.drawImage(img, width - img.getWidth(null)/2, height / 32, null);
g.drawImage(img, -img.getWidth(null)/2, height / 2, null);
g.drawImage(img, width / 2, height / 2 - height / 16, null);
g.drawImage(img, width / 8, height - height / 8, null);
g.drawImage(img, width - img.getWidth(null)/2, height - height / 4, null);
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
g.dispose();
os = new FileOutputStream(targerPath);
// 生成圖片
ImageIO.write(buffImg, "JPG", os);
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public static byte[] markImageByIcon(InputStream inputStream, byte[] content) {
try {
Image srcImg = ImageIO.read(inputStream);
int width = srcImg.getWidth(null);
int height = srcImg.getHeight(null);
BufferedImage buffImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// 得到畫筆對象
Graphics2D g = buffImg.createGraphics();
// 設置對線段的鋸齒狀邊緣處理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(srcImg.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
// 水印圖象的路徑 水印一般爲gif或者png的,這樣可設置透明度
ImageIcon imgIcon = new ImageIcon(content);
// 得到Image對象。
Image img = imgIcon.getImage();
float alpha = 0.5f; // 透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, alpha));
System.out.println("width,height: " + width + "," + height);
// 表示水印圖片的位置
g.drawImage(img, width / 4, height / 8, null);
g.drawImage(img, width - img.getWidth(null)/2, height / 32, null);
g.drawImage(img, -img.getWidth(null)/2, height / 2, null);
g.drawImage(img, width / 2, height / 2 - height / 16, null);
g.drawImage(img, width / 8, height - height / 8, null);
g.drawImage(img, width - img.getWidth(null)/2, height - height / 4, null);
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
g.dispose();
ByteArrayOutputStream os = new ByteArrayOutputStream();
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
encoder.encode(buffImg);
return os.toByteArray();
} catch (Exception e) {
e.printStackTrace();
} finally {
}
return null;
}
}
圖片加水印
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