set BufferedImage Pixels - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Pixel

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Description

set BufferedImage Pixels

Demo Code


//package com.java2s;
import java.awt.image.BufferedImage;

import java.awt.image.WritableRaster;

public class Main {
    public static void setPixels(BufferedImage img, int x, int y, int w,
            int h, int[] pixels) {
        if (pixels == null || w == 0 || h == 0) {
            return;
        } else if (pixels.length < w * h) {
            throw new IllegalArgumentException(
                    "pixels array must have a length >= w*h");
        }//from  w  w  w  .j  av  a  2 s  .c o  m

        int imageType = img.getType();
        if (imageType == BufferedImage.TYPE_INT_ARGB
                || imageType == BufferedImage.TYPE_INT_RGB) {
            WritableRaster raster = img.getRaster();
            raster.setDataElements(x, y, w, h, pixels);
        } else {
            img.setRGB(x, y, w, h, pixels, 0, w);
        }
    }
}

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