java程序中如何给图片加水印
package com.langhua.ImageUtils; 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; /*** 给图片加水印* @author iis*/ public final class ImageUtils { public ImageUtils() { } /** * 把图片印刷到图片上 * * @param pressImg * 水印文件 * @param targetImg * 目标文件 * @param x * @param y */ public final static void pressImage(String pressImg, String targetImg, 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); // 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 - x, height - height_biao - y, wideth_biao, height_biao, null); // / g.dispose(); FileOutputStream out = new FileOutputStream(targetImg); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); encoder.encode(image); out.close(); } catch (Exception e) { e.printStackTrace(); } } /** * 打印文字水印图片 * * @param pressText * --文字 * @param targetImg * --目标图片 * @param fontName * --字体名 * @param fontStyle * --字体样式 * @param color * --字体颜色 * @param fontSize * --字体大小 * @param x * --X偏移量 * @param y * --Y偏移量 */ 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); // String s="www.qhd.com.cn"; g.setColor(Color.RED); g.setFont(new Font(fontName, fontStyle, fontSize)); g.drawString(pressText,fontSize+x,fontSize +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("d:/1.jpg", "d:/2.jpg", 20, 20); pressText("水印文字", "d:/1.jpg","宋体",1,1,25,10, 10); } }
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