/**

* 圖二的位置　從左上角開始

* @param x

* @param y

*/

public void createPicTwo(int x,int y)

{

try

{

//讀取第一張圖片

File fileOne = new File("c:\\1.gif");

BufferedImage ImageOne = ImageIO.read(fileOne);

int width = ImageOne.getWidth();//圖片寬度

int height = ImageOne.getHeight();//圖片高度

//從圖片中讀取RGB

int[] ImageArrayOne = new int[width*height];

ImageArrayOne = ImageOne.getRGB(0,0,width,height,ImageArrayOne,0,width);

//對第二張圖片做相同的處理

File fileTwo = new File("c:\\2.gif");

BufferedImage ImageTwo = ImageIO.read(fileTwo);

int widthTwo = ImageTwo.getWidth();//圖片寬度

int heightTwo = ImageTwo.getHeight();//圖片高度

int[] ImageArrayTwo = new int[widthTwo*heightTwo];

ImageArrayTwo = ImageTwo.getRGB(0,0,widthTwo,heightTwo,ImageArrayTwo,0,widthTwo);

//生成新圖片

BufferedImage ImageNew = new BufferedImage(width*2,height,BufferedImage.TYPE_INT_RGB);

ImageNew.setRGB(0,0,width,height,ImageArrayOne,0,width);//設置左半部分的RGB

ImageNew.setRGB(x,y,widthTwo,heightTwo,ImageArrayTwo,0,widthTwo);//設置右半部分的RGB

File outFile = new File("c:\\out.png");

ImageIO.write(ImageNew, "png", outFile);//寫圖片

}

catch(Exception e)

{

e.printStackTrace();

}

}

方法二：解決透明的問題

/**

*

* @param filesrc

* @param logosrc

* @param outsrc

* @param x 位置

* @param y 位置

*/

public void composePic(String filesrc,String logosrc,String outsrc,int x,int y) {

try {

File bgfile = new File(filesrc);

Image bg_src = javax.imageio.ImageIO.read(bgfile);

File logofile = new File(logosrc);

Image logo_src = javax.imageio.ImageIO.read(logofile);

int bg_width = bg_src.getWidth(null);

int bg_height = bg_src.getHeight(null);

int logo_width = logo_src.getWidth(null);;

int logo_height = logo_src.getHeight(null);

BufferedImage tag = new BufferedImage(bg_width, bg_height, BufferedImage.TYPE_INT_RGB);

Graphics2D g2d = tag.createGraphics();

g2d.drawImage(bg_src, 0, 0, bg_width, bg_height, null);

g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,1.0f)); //透明度設置開始

g2d.drawImage(logo_src,x,y,logo_width,logo_height, null);

g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); //透明度設置 結束

FileOutputStream out = new FileOutputStream(outsrc);

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

encoder.encode(tag);

out.close();

}catch (Exception e) {

e.printStackTrace();

}

}

public static void main(String args[]) {

Long star = System.currentTimeMillis();

TwoComposePic pic = new TwoComposePic();

pic.composePic("c:\\bb.gif","c:\\bc.gif","c:\\out_pic.gif",490,360);

Long end =System.currentTimeMillis();

System.out.print("time====:"+(end-star));

}

總結

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