Example usage for java.awt.image SampleModel getPixel

Introduction

In this page you can find the example usage for java.awt.image SampleModel getPixel.

Prototype

public double[] getPixel(int x, int y, double[] dArray, DataBuffer data) 

Source Link

Document

Returns the samples for the specified pixel in an array of double.

Usage

From source file:lucee.runtime.img.Image.java

private BufferedImage jpgImage(BufferedImage src) {
    int w = src.getWidth();
    int h = src.getHeight();
    SampleModel srcSM = src.getSampleModel();
    WritableRaster srcWR = src.getRaster();
    java.awt.image.DataBuffer srcDB = srcWR.getDataBuffer();

    ColorModel rgb = new DirectColorModel(32, 0xff0000, 65280, 255);
    int[] bitMasks = new int[] { 0xff0000, 65280, 255 };

    SampleModel csm = new SinglePixelPackedSampleModel(3, w, h, bitMasks);
    int data[] = new int[w * h];
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            int pix[] = null;
            int sample[] = srcSM.getPixel(j, i, pix, srcDB);
            if (sample[3] == 0 && sample[2] == 0 && sample[1] == 0 && sample[0] == 0)
                data[i * w + j] = 0xffffff;
            else// w  ww .  ja va  2s.c o m
                data[i * w + j] = sample[0] << 16 | sample[1] << 8 | sample[2];
        }

    }

    java.awt.image.DataBuffer db = new DataBufferInt(data, w * h * 3);
    WritableRaster wr = Raster.createWritableRaster(csm, db, new Point(0, 0));
    return new BufferedImage(rgb, wr, false, null);
}

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