Examples with Feature mpicbg.imagefeatures.Feature used on opensource projects

Example 11 with Feature

use of mpicbg.imagefeatures.Feature in project TrakEM2 by trakem2.

the class ElasticMontage method extractAndSaveFeatures.

/**
 * Extract SIFT features and save them into the project folder.
 *
 * @param tiles
 * @param siftParam
 * @param clearCache
 * @throws Exception
 */
protected static final void extractAndSaveFeatures(final List<AbstractAffineTile2D<?>> tiles, final FloatArray2DSIFT.Param siftParam, final boolean clearCache) throws Exception {
    final ExecutorService exec = Executors.newFixedThreadPool(p.maxNumThreads);
    /* extract features for all slices and store them to disk */
    final AtomicInteger counter = new AtomicInteger(0);
    final ArrayList<Future<ArrayList<Feature>>> siftTasks = new ArrayList<Future<ArrayList<Feature>>>();
    for (int i = 0; i < tiles.size(); ++i) {
        final int tileIndex = i;
        siftTasks.add(exec.submit(new Callable<ArrayList<Feature>>() {

            @Override
            public ArrayList<Feature> call() {
                final AbstractAffineTile2D<?> tile = tiles.get(tileIndex);
                final String patchName = patchName(tile.getPatch());
                IJ.showProgress(counter.getAndIncrement(), tiles.size() - 1);
                ArrayList<Feature> fs = null;
                if (!clearCache)
                    fs = mpicbg.trakem2.align.Util.deserializeFeatures(tile.getPatch().getProject(), siftParam, null, tile.getPatch().getId());
                if (null == fs) {
                    final FloatArray2DSIFT sift = new FloatArray2DSIFT(siftParam);
                    final SIFT ijSIFT = new SIFT(sift);
                    fs = new ArrayList<Feature>();
                    final ByteProcessor ip = tile.createMaskedByteImage();
                    ijSIFT.extractFeatures(ip, fs);
                    Utils.log(fs.size() + " features extracted for " + patchName);
                    if (!mpicbg.trakem2.align.Util.serializeFeatures(tile.getPatch().getProject(), siftParam, null, tile.getPatch().getId(), fs))
                        Utils.log("FAILED to store serialized features for " + patchName);
                } else
                    Utils.log(fs.size() + " features loaded for " + patchName);
                return fs;
            }
        }));
    }
    /* join */
    for (final Future<ArrayList<Feature>> fu : siftTasks) fu.get();
    siftTasks.clear();
    exec.shutdown();
}