Examples with NITFException nitf.NITFException used on opensource projects

Example 6 with NITFException

use of nitf.NITFException in project imageio-ext by geosolutions-it.

the class NITFReader method readHeader.

public synchronized void readHeader() throws IOException {
    if (reader != null)
        return;
    if (handle == null) {
        throw new IllegalStateException("No input handle");
    }
    try {
        reader = new Reader();
        record = reader.read(handle);
    } catch (NITFException e) {
        LOGGER.severe(e.getLocalizedMessage());
        throw new IIOException("NITF Exception", e);
    }
}

Example 7 with NITFException

use of nitf.NITFException in project imageio-ext by geosolutions-it.

the class NITFReader method read.

@Override
public BufferedImage read(int imageIndex, ImageReadParam param) throws IOException {
    readHeader();
    Raster raster = readRaster(imageIndex, param);
    // get the requested number of destination bands (or 0 for all)
    int numDestBands = param != null ? (param.getDestinationBands() != null ? param.getDestinationBands().length : param.getSourceBands() != null ? param.getSourceBands().length : 0) : 0;
    // try to find a good match for the specifier
    ImageTypeSpecifier imageType = null, firstType = null;
    Iterator<ImageTypeSpecifier> imageTypes = getImageTypes(imageIndex);
    while (imageTypes.hasNext() && imageType == null) {
        ImageTypeSpecifier currentImageType = imageTypes.next();
        if (firstType == null)
            firstType = currentImageType;
        if (currentImageType.getNumBands() == numDestBands)
            imageType = currentImageType;
    }
    if (imageType == null) {
        if (firstType == null)
            throw new IOException("Unable to determine the ImageTypeSpecifier");
        else
            imageType = firstType;
    }
    try {
        ImageSubheader subheader = record.getImages()[imageIndex].getSubheader();
        String pvType = subheader.getPixelValueType().getStringData().trim();
        int nbpp = subheader.getNumBitsPerPixel().getIntData();
        int nBytes = ((nbpp - 1) / 8) + 1;
        if (nBytes == 1 || nBytes == 2 || (nBytes == 4 && pvType.equals("R")) || (nBytes == 8 && pvType.equals("R"))) {
            return ImageIOUtils.rasterToBufferedImage(raster, imageType);
        }
    } catch (NITFException e) {
        throw new IOException(e);
    }
    throw new UnsupportedOperationException("Image pixel type or bits per pixel not yet supported");
}

Example 8 with NITFException

use of nitf.NITFException in project imageio-ext by geosolutions-it.

the class NITFReader method getImageTypes.

@Override
public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex) throws IOException {
    checkIndex(imageIndex);
    List<ImageTypeSpecifier> l = new ArrayList<ImageTypeSpecifier>();
    try {
        ImageSubheader subheader = record.getImages()[imageIndex].getSubheader();
        String irep = subheader.getImageRepresentation().getStringData().trim();
        String pvType = subheader.getPixelValueType().getStringData().trim();
        int bandCount = subheader.getBandCount();
        int nbpp = subheader.getNumBitsPerPixel().getIntData();
        // if (NITFUtils.isCompressed(record, imageIndex))
        // {
        // throw new NotImplementedException(
        // "Only uncompressed imagery is currently supported");
        // }
        int nBytes = ((nbpp - 1) / 8) + 1;
        if (nBytes == 1 || nBytes == 2 || (nBytes == 4 && pvType.equals("R")) || (nBytes == 8 && pvType.equals("R"))) {
            if (nBytes == 1 && bandCount == 3 && irep.equals("RGB")) {
                ColorSpace rgb = ColorSpace.getInstance(ColorSpace.CS_sRGB);
                int[] bandOffsets = new int[3];
                for (int i = 0; i < bandOffsets.length; ++i) bandOffsets[i] = i;
                l.add(ImageTypeSpecifier.createInterleaved(rgb, bandOffsets, DataBuffer.TYPE_BYTE, false, false));
            }
            l.add(ImageTypeSpecifier.createGrayscale(8, DataBuffer.TYPE_BYTE, false));
        } else {
            throw new UnsupportedOperationException("Support for pixels of size " + nbpp + " bytes has not been implemented yet");
        }
    } catch (NITFException e) {
        LOGGER.severe(e.getLocalizedMessage());
    }
    return l.iterator();
}