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package beans;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;


import javax.imageio.ImageIO;



public class pngchangecolor {
	public static void main(String[] args) throws Exception{
        String image = "c:\\1.png";//原始图片路径
        String resultImage = "c:\\1.png.png";//处理后保存的图片路径
        changePNGBackgroudColor(image,resultImage, Color.red);//Color.pink 即图片背景颜色
    }
	public static void changePNGBackgroudColor(String sourceImage, String targetImage, Color backgroudColor) {
        try {
            BufferedImage result = changePNGBackgroudColor(sourceImage, backgroudColor);
            File output = new File(targetImage);
            ImageIO.write(result, "png", output);
        } catch (IOException e) {
            System.out.println("有问题了" + e.getMessage());
        }
    }
 
    /**
     * @Description 给PNG图片增加背景色 返回BufferedImage
     * @param sourceImage 原始图片 最好是PNG透明的
     * @param backgroudColor 背景色
     * @return BufferedImage
     **/
    public static BufferedImage changePNGBackgroudColor(String sourceImage, Color backgroudColor) {
        try {
            File input = new File(sourceImage);
            BufferedImage image = ImageIO.read(input);

            BufferedImage result = new BufferedImage(
                    image.getWidth(),
                    image.getHeight(),
                    BufferedImage.TYPE_INT_RGB);

            Graphics2D graphic = result.createGraphics();
            graphic.drawImage(image, 0, 0, backgroudColor, null);
            graphic.dispose();
            return result;
        } catch (IOException e) {
            System.out.println("有问题了" + e.getMessage());
            return null;
        }
      }
}