/**
* @param li ImageLevelInfo object
* @param con JDBC Connection
* @return the resolution for li, based on a random chosen tile
* @throws SQLException
* @throws IOException
*/
protected double[] getPixelResolution(ImageLevelInfo li, Connection con)
throws SQLException, IOException {
double[] result = null;
String statementString = getRandomTileStatement(li);
PreparedStatement s = con.prepareStatement(statementString);
ResultSet r = s.executeQuery();
while (r.next()) {
byte[] tileBytes = getTileBytes(r);
if (tileBytes == null) {
continue;
}
BufferedImage buffImage = null;
li.setCanImageIOReadFromInputStream(true);
try {
buffImage = ImageIO.read(new ByteArrayInputStream(tileBytes));
} catch (IOException e) {
}
if (buffImage == null) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.warning(
"Image IO cannot read from ByteInputStream,use less efficient jai methods");
}
li.setCanImageIOReadFromInputStream(false);
SeekableStream stream = new ByteArraySeekableStream(tileBytes);
String decoderName = null;
for (String dn : ImageCodec.getDecoderNames(stream)) {
decoderName = dn;
break;
}
ImageDecoder decoder = ImageCodec.createImageDecoder(decoderName, stream, null);
PlanarImage img = PlanarImage.wrapRenderedImage(decoder.decodeAsRenderedImage());
buffImage = img.getAsBufferedImage();
}
Envelope env = getEnvelopeFromResultSet(r);
result =
new double[] {
env.getWidth() / buffImage.getWidth(), env.getHeight() / buffImage.getHeight()
};
break;
}
r.close();
s.close();
return result;
}
/**
* A convenience method for registering XTIFF methods into JAI, for extended classes of
* XTIFFDescriptor.
*/
public static void register(XTIFFDescriptor odesc) {
OperationRegistry reg = JAI.getDefaultInstance().getOperationRegistry();
// override tiff operation
reg.unregisterOperationDescriptor("tiff");
// ...and register tiff with the new desc
reg.registerOperationDescriptor(odesc, "tiff");
reg.registerRIF("tiff", "org.libtiff.jai", odesc);
// re-register the tiff codec
ImageCodec.unregisterCodec("tiff");
ImageCodec.registerCodec(new XTIFFCodec());
}
/**
* Sets up all the images and trackers.
*
* @throws IOException if the image cannot be loaded
*/
public static void settupImages() throws IOException {
FileSeekableStream stream = new FileSeekableStream(filePath);
ImageDecodeParam param = null;
ImageDecoder dec = ImageCodec.createImageDecoder("tiff", stream, param);
images = new RenderedImage[TIFFDirectory.getNumDirectories(stream)];
System.out.println(images.length);
for (int i = 0; i < images.length; i++) {
images[i] = new NullOpImage(dec.decodeAsRenderedImage(i), null, null, OpImage.OP_IO_BOUND);
}
JFrame f = new JFrame("Trak");
im = new ImageFrame(images);
File save = new File(filePath + ".trak");
if (save.exists()) {
try {
ObjectInputStream fromSave =
new ObjectInputStream(new GZIPInputStream(new FileInputStream(save)));
trackers = (DotTracker[]) fromSave.readObject();
if (trackers.length != images.length) {
throw new IOException("Invalid Trackers");
}
foundValidTrackers = true;
System.out.println("Valid trackers found, not re-refining data");
} catch (Exception e) {
}
}
if (!foundValidTrackers) {
trackers = new DotTracker[images.length];
}
f.add(im);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.pack();
f.setLocationRelativeTo(null);
for (int i = 0; i < images.length; i++) {
if (!foundValidTrackers) {
trackers[i] = new DotTracker(im.datas[i]);
}
trackers[i].colorRefined(im.refinedImages[i].getGraphics());
System.out.println(i);
}
remakeDots();
f.setVisible(true);
}
public void write(RenderedImage renderedImage, String contentType, OutputStream os)
throws IOException {
if (contentType.contains(TYPE_BMP)) {
ImageEncoder imageEncoder = ImageCodec.createImageEncoder(TYPE_BMP, os, null);
imageEncoder.encode(renderedImage);
} else if (contentType.contains(TYPE_GIF)) {
encodeGIF(renderedImage, os);
} else if (contentType.contains(TYPE_JPEG) || contentType.contains("jpeg")) {
ImageIO.write(renderedImage, "jpeg", os);
} else if (contentType.contains(TYPE_PNG)) {
ImageIO.write(renderedImage, TYPE_PNG, os);
} else if (contentType.contains(TYPE_TIFF) || contentType.contains("tif")) {
ImageEncoder imageEncoder = ImageCodec.createImageEncoder(TYPE_TIFF, os, null);
imageEncoder.encode(renderedImage);
}
}
public ImageBag read(byte[] bytes) {
RenderedImage renderedImage = null;
String type = TYPE_NOT_AVAILABLE;
Enumeration<ImageCodec> enu = ImageCodec.getCodecs();
while (enu.hasMoreElements()) {
ImageCodec codec = enu.nextElement();
if (codec.isFormatRecognized(bytes)) {
type = codec.getFormatName();
renderedImage = read(bytes, type);
break;
}
}
if (type.equals("jpeg")) {
type = TYPE_JPEG;
}
return new ImageBag(renderedImage, type);
}
protected RenderedImage read(byte[] bytes, String type) {
RenderedImage renderedImage = null;
try {
if (type.equals(TYPE_JPEG)) {
type = "jpeg";
}
ImageDecoder decoder =
ImageCodec.createImageDecoder(type, new UnsyncByteArrayInputStream(bytes), null);
renderedImage = decoder.decodeAsRenderedImage();
} catch (IOException ioe) {
if (_log.isDebugEnabled()) {
_log.debug(type + ": " + ioe.getMessage());
}
}
return renderedImage;
}
