如何融合两个图像 [英] How to blend two image

问题描述

我想将两张图片混合在一起，比例为4：1

结果应该是这样的

所以有任何想法吗 ？
提前致谢

解决方案

这个问题很模糊，但您可以使用2D图形API

查看

写/保存图像

了解更多详情.. 。

I want to blend two images together with a ratio of 4:1

the result should be something like this

So any ideas ? Thanks in advance

解决方案

The question is vague, but you could use the 2D Graphics API

Take a look at 2D Graphics and Compositing Graphics in particular...

So using the following images (base on left, overlay on right)

try {
    BufferedImage base = ImageIO.read(new File("base.jpg"));
    BufferedImage overlay = ImageIO.read(new File("overlay.jpg"));

    Graphics2D g2d = base.createGraphics();
    g2d.setComposite(AlphaComposite.SrcOver.derive(0.5f));
    int x = (base.getWidth() - overlay.getWidth()) / 2;
    int y = (base.getHeight() - overlay.getHeight()) / 2;
    g2d.drawImage(overlay, x, y, null);
    g2d.dispose();

    ImageIO.write(base, "jpg", new File("Blended.jpg"));
} catch (IOException e) {
    e.printStackTrace();
}

Resulting in...

Take a look at...

• Reading/Loading an Image
• Writing/Saving an Image

for more details...

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