Java picture Add watermark instance code share _java

This article introduces the Java image to add watermark instance code, Java watermark is very convenient, watermark can be pictures or text, the specific contents are as follows

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; /** * Image watermark * @blog http://sjsky.iteye.com * @author Michael/public class Imagemarklogobyicon {/** * @p 
  Aram 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"; Add a watermark to a picture imagemarklogobyicOn.markimagebyicon (IconPath, Srcimgpath, Targerpath); 
 
 Add a watermark to the picture, the watermark rotates -45 imagemarklogobyicon.markimagebyicon (IconPath, Srcimgpath, TargerPath2,-45); /** * Add watermark to Picture * @param iconpath watermark Picture Path * @param srcimgpath source Picture path * @param targerpath target Picture Path * * Publ IC static void Markimagebyicon (String iconpath, String Srcimgpath, String targerpath) {Markimagebyicon (IconPath, S 
 Rcimgpath, Targerpath, NULL); 
  /** * Add watermark to picture, can set watermark picture rotation angle * @param iconpath watermark Picture Path * @param srcimgpath source Picture path * @param targerpath destination picture path * @param degree watermark picture rotation angle */public static void Markimagebyicon (String iconpath, String Srcimgpath, String Targ 
  Erpath, 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) 
 
   ; 
   Get the Brush object//Graphics g= buffimg.getgraphics (); Graphics2d g = buffimg.creategraphics (); Sets jagged edge processing for line segments G.setrenderinghint (Renderinghints.key_interpolation, Renderinghints.value_interpolation_bilinea 
 
   R); G.drawimage (srcimg.getscaledinstance (Srcimg.getwidth (null), srcimg. GetHeight (null), Image.scale_smooth), 0, 0, NULL 
 
   ); if (null!= degree) {//Set watermark rotation g.rotate (Math.toradians (degree), (double) buffimg.getwidth ()/2, (double 
   ) buffimg. GetHeight ()/2); 
 
   The path watermark for the watermark image is generally GIF or PNG, which sets the transparency ImageIcon Imgicon = new ImageIcon (IconPath); 
   Gets the image object. 
 
   Image img = imgicon.getimage (); float alpha = 0.5f; 
 
   Transparency G.setcomposite (Alphacomposite.getinstance (alphacomposite.src_atop, Alpha)); 
 
   Represents the location of the watermark Picture G.drawimage (img, MB, NULL); 
 
   G.setcomposite (Alphacomposite.getinstance (alphacomposite.src_over)); 
 
   G.dispose (); 
 
   OS = new FileOutputStream (Targerpath); 
 
   Generate Picture Imageio.write (buffimg, "JPG", OS); System.out. println ("Picture complete add icon seal ...") 
  "); 
  catch (Exception e) {e.printstacktrace (); 
   Finally {try {if (null!= OS) os.close (); 
   catch (Exception e) {e.printstacktrace ();  } 
  } 
 } 
}

To share one more example:

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 () {Retu RN ApplicationContext *. Getrealpath ("/template/data/util/shuiyin.gif"); * * * */** the picture to the picture * * @param pressimg--* watermark file * @param targetimg--Target file * @param x *- -X Coordinates * @param y *--y coordinates */public final static void Pressimage (String pressimg, string targetimg, int x, int y
   {try {//target 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);
   Watermark 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);
   Watermark file End G.dispose ();
   FileOutputStream out = new FileOutputStream (targetimg);
   JPEGImageEncoder encoder = Jpegcodec.createjpegencoder (out);
   Encoder.encode (image);
  Out.close ();
  catch (Exception e) {e.printstacktrace ();
  /** * Print Text watermark picture * * @param presstext *--Text * @param targetimg--* Target picture * @param fontname- * Font name * @param fontstyle--font style * @param color--* Font Color * @param fontsize-* Font Size * @param x-
  -* Offset * @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);
 }
}

Hopefully this article will help you to add a watermark to your picture in the Java language.