Examples with DataBufferDouble java.awt.image.DataBufferDouble used on opensource projects

Example 1 with DataBufferDouble

use of java.awt.image.DataBufferDouble in project bioformats by openmicroscopy.

the class AWTImageTools method makeImage.

/**
 * Creates an image from the given double-precision floating point data.
 *
 * @param data Array containing image data.
 *   It is assumed that each channel corresponds to one element of the array.
 *   For example, for RGB data, data[0] is R, data[1] is G, and data[2] is B.
 * @param w Width of image plane.
 * @param h Height of image plane.
 */
public static BufferedImage makeImage(double[][] data, int w, int h) {
    int dataType = DataBuffer.TYPE_DOUBLE;
    DataBuffer buffer = new DataBufferDouble(data, data[0].length);
    return constructImage(data.length, dataType, w, h, false, true, buffer);
}

Example 2 with DataBufferDouble

use of java.awt.image.DataBufferDouble in project bioformats by openmicroscopy.

the class AWTImageTools method makeImage.

/**
 * Creates an image from the given double data.
 *
 * @param data Array containing image data.
 * @param w Width of image plane.
 * @param h Height of image plane.
 * @param c Number of channels.
 * @param interleaved If set, the channels are assumed to be interleaved;
 *   otherwise they are assumed to be sequential.
 *   For example, for RGB data, the pattern "RGBRGBRGB..." is interleaved,
 *   while "RRR...GGG...BBB..." is sequential.
 */
public static BufferedImage makeImage(double[] data, int w, int h, int c, boolean interleaved) {
    if (c == 1)
        return makeImage(data, w, h);
    int dataType = DataBuffer.TYPE_DOUBLE;
    DataBuffer buffer = new DataBufferDouble(data, c * w * h);
    return constructImage(c, dataType, w, h, interleaved, false, buffer);
}

Example 3 with DataBufferDouble

use of java.awt.image.DataBufferDouble in project javacv by bytedeco.

the class GLCanvasFrame method showImage.

public void showImage(BufferedImage image) {
    if (image == null) {
        return;
    }
    this.color = null;
    this.width = image.getWidth();
    this.height = image.getHeight();
    DataBuffer buffer = image.getRaster().getDataBuffer();
    if (buffer instanceof DataBufferByte) {
        this.buffer = ByteBuffer.wrap(((DataBufferByte) buffer).getData());
        this.type = GL2.GL_UNSIGNED_BYTE;
    } else if (buffer instanceof DataBufferDouble) {
        this.buffer = DoubleBuffer.wrap(((DataBufferDouble) buffer).getData());
        this.type = GL2.GL_DOUBLE;
    } else if (buffer instanceof DataBufferFloat) {
        this.buffer = FloatBuffer.wrap(((DataBufferFloat) buffer).getData());
        this.type = GL2.GL_FLOAT;
    } else if (buffer instanceof DataBufferInt) {
        this.buffer = IntBuffer.wrap(((DataBufferInt) buffer).getData());
        this.type = GL2.GL_INT;
    } else if (buffer instanceof DataBufferShort) {
        this.buffer = ShortBuffer.wrap(((DataBufferShort) buffer).getData());
        this.type = GL2.GL_SHORT;
    } else if (buffer instanceof DataBufferUShort) {
        this.buffer = ShortBuffer.wrap(((DataBufferUShort) buffer).getData());
        this.type = GL2.GL_UNSIGNED_SHORT;
    } else {
        assert false;
    }
    switch(image.getSampleModel().getNumBands()) {
        case 1:
            this.format = GL2.GL_LUMINANCE;
            break;
        case 2:
            this.format = GL2.GL_RG;
            break;
        case 3:
            this.format = GL2.GL_RGB;
            break;
        case 4:
            this.format = GL2.GL_RGBA;
            break;
        default:
            assert false;
    }
    getGLCanvas().display();
}

Example 4 with DataBufferDouble

use of java.awt.image.DataBufferDouble in project imageio-ext by geosolutions-it.

the class ImageIOUtils method rasterToBufferedImage.

/**
 * Utility method for creating a BufferedImage from a source raster Currently only Float->Byte and Byte->Byte are supported. Will throw an
 * {@link UnsupportedOperationException} if the conversion is not supported.
 *
 * @param raster
 * @param imageType
 * @return
 */
public static BufferedImage rasterToBufferedImage(Raster raster, ImageTypeSpecifier imageType) {
    if (imageType == null) {
        if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE)
            imageType = ImageTypeSpecifier.createGrayscale(8, DataBuffer.TYPE_BYTE, false);
        else
            throw new IllegalArgumentException("unable to dynamically determine the imageType");
    }
    // create a new buffered image, for display
    BufferedImage bufImage = imageType.createBufferedImage(raster.getWidth(), raster.getHeight());
    if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_USHORT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) {
        // convert short pixels to bytes
        short[] shortData = ((DataBufferUShort) raster.getDataBuffer()).getData();
        byte[] byteData = ((DataBufferByte) bufImage.getWritableTile(0, 0).getDataBuffer()).getData();
        ImageIOUtils.shortToByteBuffer(shortData, byteData, 1, raster.getNumBands());
    } else if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_FLOAT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) {
        // convert float pixels to bytes
        float[] floatData = ((DataBufferFloat) raster.getDataBuffer()).getData();
        byte[] byteData = ((DataBufferByte) bufImage.getWritableTile(0, 0).getDataBuffer()).getData();
        ImageIOUtils.floatToByteBuffer(floatData, byteData, 1, raster.getNumBands());
    } else if (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_DOUBLE && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) {
        // convert double pixels to bytes
        double[] doubleData = ((DataBufferDouble) raster.getDataBuffer()).getData();
        byte[] byteData = ((DataBufferByte) bufImage.getWritableTile(0, 0).getDataBuffer()).getData();
        ImageIOUtils.doubleToByteBuffer(doubleData, byteData, 1, raster.getNumBands());
    } else if ((raster.getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_BYTE) || (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_USHORT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_USHORT) || (raster.getDataBuffer().getDataType() == DataBuffer.TYPE_SHORT && bufImage.getRaster().getDataBuffer().getDataType() == DataBuffer.TYPE_SHORT)) {
        bufImage.setData(raster);
    } else {
        throw new UnsupportedOperationException("Unable to convert raster type to bufferedImage type: " + raster.getDataBuffer().getDataType() + " ==> " + bufImage.getRaster().getDataBuffer().getDataType());
    }
    return bufImage;
}

Example 5 with DataBufferDouble

use of java.awt.image.DataBufferDouble in project imageio-ext by geosolutions-it.

the class ImageIOUtils method makeGenericPixelInterleavedWritableRaster.

/**
 * Returns a generic pixel interleaved WritableRaster
 *
 * @param numElems
 * @param numLines
 * @param bandOffsets
 * @param dataType
 * @return
 */
public static WritableRaster makeGenericPixelInterleavedWritableRaster(int numElems, int numLines, int numBands, int dataType) {
    int[] bandOffsets = new int[numBands];
    for (int i = 0; i < numBands; ++i) bandOffsets[i] = i;
    DataBuffer d = null;
    if (dataType == DataBuffer.TYPE_BYTE)
        d = new DataBufferByte(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_SHORT)
        d = new DataBufferShort(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_USHORT)
        d = new DataBufferUShort(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_FLOAT)
        d = new DataBufferFloat(numElems * numLines * numBands);
    else if (dataType == DataBuffer.TYPE_DOUBLE)
        d = new DataBufferDouble(numElems * numLines * numBands);
    else
        throw new IllegalArgumentException("Invalid datatype: " + dataType);
    PixelInterleavedSampleModel pism = new PixelInterleavedSampleModel(dataType, numElems, numLines, bandOffsets.length, numElems * bandOffsets.length, bandOffsets);
    SunWritableRaster ras = new SunWritableRaster(pism, d, new Point(0, 0));
    return ras;
}