Creates a BufferedImage by scaling the alpha channel of a provided image. - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Create

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Description

Creates a BufferedImage by scaling the alpha channel of a provided image.

Demo Code


import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;
import java.awt.image.BufferedImageOp;
import java.awt.image.ColorModel;
import java.awt.image.PixelGrabber;
import javax.swing.Icon;
import javax.swing.ImageIcon;

public class Main{
    /**//from  w w  w  . j a va2  s .  c  o  m
     * Creates a BufferedImage by scaling the alpha channel of a provided image.
     *
     * @param srcImage
     * @param alphaScale
     * @return
     */
    public static BufferedImage scaleAlpha(BufferedImage srcImage,
            double alphaScale) {
        ScaleAlphaImageOpARGB scaleOp = new ScaleAlphaImageOpARGB(
                alphaScale);
        BufferedImage destImage = scaleOp.createCompatibleDestImage(
                srcImage, srcImage.getColorModel());
        scaleOp.filter(srcImage, destImage);
        return destImage;
    }
}

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