Java BufferedImage Transparent ConvToTransparentImage(BufferedImage src, float alpha)

Description

Conv To Transparent Image

License

Apache License

Declaration

public static BufferedImage ConvToTransparentImage(BufferedImage src, float alpha) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.awt.AlphaComposite;

import java.awt.Graphics2D;

import java.awt.image.BufferedImage;

public class Main {
    public static BufferedImage ConvToTransparentImage(BufferedImage src, float alpha) {
        // System.out.println("Conv to Transperent Image, apha value: " +
        // alpha);
        BufferedImage dest = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2 = dest.createGraphics();
        int rule = AlphaComposite.SRC_OVER;
        AlphaComposite ac = AlphaComposite.getInstance(rule, alpha);
        g2.setComposite(ac);//w  w w. ja va2  s.  co  m
        g2.drawImage(src, null, 0, 0);
        g2.dispose();
        return dest;
    }

    public static void drawImage(BufferedImage srcImg, BufferedImage img2Draw, int w, int h) {
        if (w == -1)
            w = (int) (srcImg.getWidth() / 2);
        if (h == -1)
            h = (int) (srcImg.getHeight() / 2);
        System.out.println("AWT Image Wt: " + w + " And Ht: " + h);
        Graphics2D g2 = srcImg.createGraphics();
        g2.drawImage(img2Draw, w, h, null);
        g2.dispose();
    }
}

Related

1. ApplyTransparency(BufferedImage image, Image mask)
2. applyTransparency(BufferedImage src, float alpha)
3. bordersNonTransparentPixel(BufferedImage data, int wid, int hei, boolean[] traced, int x, int y)
4. cutTransparentBorder(BufferedImage src)
5. fixTransparency(String var0, BufferedImage var1)
6. makeTransparency(BufferedImage image, int color)
7. makeTranspBufferedImage(Image image)