Example usage for java.awt.image DataBufferByte DataBufferByte

Introduction

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

Prototype

public DataBufferByte(byte[][] dataArray, int size) 

Source Link

Document

Constructs a byte-based DataBuffer with the specified arrays.

Usage

From source file:org.shaman.terrain.polygonal.GraphToHeightmap.java

private void saveMatrix(float[][] matrix, String filename, float min, float max) {
    byte[] buffer = new byte[size * size];
    int i = 0;/*from ww w.  j a va 2s.c  om*/
    for (int x = 0; x < size; ++x) {
        for (int y = 0; y < size; ++y) {
            buffer[i] = (byte) ((matrix[x][y] - min) * 255 / (max - min));
            i++;
        }
    }
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
    int[] nBits = { 8 };
    ColorModel cm = new ComponentColorModel(cs, nBits, false, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
    SampleModel sm = cm.createCompatibleSampleModel(size, size);
    DataBufferByte db = new DataBufferByte(buffer, size * size);
    WritableRaster raster = Raster.createWritableRaster(sm, db, null);
    BufferedImage result = new BufferedImage(cm, raster, false, null);
    try {
        ImageIO.write(result, "png", new File(filename));
    } catch (IOException ex) {
        Logger.getLogger(SketchTerrain.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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From source file:org.shaman.terrain.polygonal.GraphToHeightmap.java

private void saveColorMatrix(float[][][] matrix, String filename, float min, float max) {
    byte[] buffer = new byte[size * size * 3];
    int i = 0;//from  w  w w.j a  v  a2 s  .c  o m
    for (int x = 0; x < size; ++x) {
        for (int y = 0; y < size; ++y) {
            buffer[i] = (byte) ((matrix[x][y][0] - min) * 255 / (max - min));
            i++;
            buffer[i] = (byte) ((matrix[x][y][1] - min) * 255 / (max - min));
            i++;
            buffer[i] = (byte) ((matrix[x][y][2] - min) * 255 / (max - min));
            i++;
        }
    }
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB);
    int[] nBits = { 8, 8, 8 };
    ColorModel cm = new ComponentColorModel(cs, nBits, false, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
    SampleModel sm = cm.createCompatibleSampleModel(size, size);
    DataBufferByte db = new DataBufferByte(buffer, size * size * 3);
    WritableRaster raster = Raster.createWritableRaster(sm, db, null);
    BufferedImage result = new BufferedImage(cm, raster, false, null);
    try {
        ImageIO.write(result, "png", new File(filename));
    } catch (IOException ex) {
        Logger.getLogger(SketchTerrain.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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