Java给图片打水印

//给图片打水印 import com.sun.image.codec.jpeg.JPEGCodec; import com.sun.image.codec.jpeg.JPEGImageEncoder; 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 java.io.IOException; import javax.imageio.ImageIO; public class ImageWaterMark{ /*构造函数1，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 -- 右下角的偏移量 * @param y * Such As:new ImageWaterMark("spy", "D://Documents//No.jpg", "Monospace", Font.TRUETYPE_FONT, Color.GREEN, 46, 50, 40); */ public ImageWaterMark(String pressText, String targetImg, String fontName, int fontStyle, Color color, int fontSize, int x, int y) { try { File file = new File(targetImg); Image src = ImageIO.read(file); int width = src.getWidth(null); int height = src.getHeight(null); BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics g = image.createGraphics(); g.drawImage(src, 0, 0, width, height, null); g.setColor(color); g.setFont(new Font(fontName, fontStyle, fontSize)); g.drawString(pressText, width - fontSize - x, height - fontSize/2 - y); g.dispose(); //输出图像 FileOutputStream out = new FileOutputStream(targetImg); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); encoder.encode(image); out.close(); } catch (IOException ex) { } } /*构造函数2，打印图片水印图片 * @param pressImg --被当做水印的图片 * @param targetImg -- 目标图片 * @param x -- 右下角的偏移量 * @param y * Such As:new ImageWaterMark("D://Documents//no5.jpg","E://software//picture//Win7_21.jpg", 200, 100); */ public ImageWaterMark(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(); //输出图像 FileOutputStream out = new FileOutputStream(targetImg); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); encoder.encode(image); out.close(); } catch (Exception e) { e.printStackTrace(); } } }