摘要：BufferedImage RGBA Transparent 挖图 抠图

先看看效果


代码

    @Test
    public void getAlphaImage2() throws IOException{
        String imagePath = "D:\\TSBrowserDownloads\\baozhen.png";
        BufferedImage img=ImageIO.read(new File(imagePath));
        for (int w = 0; w < img.getWidth(); w++) {
            for (int h = 0; h < img.getHeight(); h++) {
                if((w>=210 && w<= 380) && (h>=150 && h<= 360)){
                    img.setRGB(w, h, 16777215);
                }
            }
        }
        ImageIO.write(img, "png", new File("D:\\TSBrowserDownloads\\target.png"));
    }

解释

1. 16777215
   

2. 不能用透明图片画到抱枕上，那样是没效果的，只能重新rgb值