def fetch(in_vol, voxel_size, roi_offset, roi_shape, out_file, out_ds,
num_workers):
total_roi = daisy.Roi((roi_offset), (roi_shape))
read_roi = daisy.Roi((0, ) * 3, (4800, 1280, 1280))
write_roi = read_roi
logging.info('Creating out dataset...')
raw_out = daisy.prepare_ds(out_file,
out_ds,
total_roi,
voxel_size,
dtype=np.uint8,
write_roi=write_roi)
logging.info('Writing to dataset...')
daisy.run_blockwise(total_roi,
read_roi,
write_roi,
process_function=lambda b: fetch_in_block(
b, voxel_size, in_vol, raw_out),
fit='shrink',
num_workers=num_workers)
def test_relabel_connected_components(self):
roi = daisy.Roi((0, 0, 0), (100, 100, 100))
block_size = (25, 25, 25)
with tempfile.TemporaryDirectory() as tmpdir:
array_in = daisy.prepare_ds(os.path.join(tmpdir, 'array_in.zarr'),
'volumes/in',
roi,
voxel_size=(1, 1, 1),
dtype=np.uint64)
in_data = np.zeros((100, 100, 100), dtype=np.uint64)
in_data[20] = 1
in_data[40] = 1
in_data[60] = 2
array_in[roi] = in_data
array_out = daisy.prepare_ds(os.path.join(tmpdir,
'array_out.zarr'),
'volumes/out',
roi,
voxel_size=(1, 1, 1),
write_size=block_size,
dtype=np.uint64)
segment.arrays.relabel_connected_components(array_in,
array_out,
block_size=block_size,
num_workers=10)
out_data = array_out.to_ndarray(roi)
np.testing.assert_array_equal(out_data[20] == out_data[40], False)
np.testing.assert_array_equal(out_data[40] == out_data[60], False)
self.assertEqual(out_data[0:20].sum(), 0)
self.assertEqual(out_data[21:40].sum(), 0)
self.assertEqual(out_data[41:60].sum(), 0)
self.assertEqual(out_data[61:].sum(), 0)
self.assertEqual(len(np.unique(out_data[20])), 1)
self.assertEqual(len(np.unique(out_data[40])), 1)
self.assertEqual(len(np.unique(out_data[60])), 1)
def create_test_array():
ds = daisy.prepare_ds('test_array.zarr',
'test',
total_roi=daisy.Roi((0, 0, 0), (20, 40, 80)),
voxel_size=(1, 1, 1),
write_size=(2, 4, 4),
dtype=np.float32)
ds.data[:, :, 0:40] = 0.5
ds.data[:, :, 40:60] = 0.75
ds.data[:, :, 60:80] = 1.0
ds.data[:, 0:20, :] *= 0.5
return ds
def _task_init(self):
# open dataset
dataset = daisy.open_ds(self.in_file, self.in_ds_name)
# define total region of interest (roi)
total_roi = dataset.roi
ndims = len(total_roi.get_offset())
# define block read and write rois
assert len(self.block_read_size) == ndims,\
"Read size must have same dimensions as in_file"
assert len(self.block_write_size) == ndims,\
"Write size must have same dimensions as in_file"
block_read_size = daisy.Coordinate(self.block_read_size)
block_write_size = daisy.Coordinate(self.block_write_size)
block_read_size *= dataset.voxel_size
block_write_size *= dataset.voxel_size
context = (block_read_size - block_write_size) / 2
block_read_roi = daisy.Roi((0,)*ndims, block_read_size)
block_write_roi = daisy.Roi(context, block_write_size)
# prepare output dataset
output_roi = total_roi.grow(-context, -context)
if self.out_file is None:
self.out_file = self.in_file
if self.out_ds_name is None:
self.out_ds_name = self.in_ds_name + '_smoothed'
logger.info(f'Processing data to {self.out_file}/{self.out_ds_name}')
output_dataset = daisy.prepare_ds(
self.out_file,
self.out_ds_name,
total_roi=output_roi,
voxel_size=dataset.voxel_size,
dtype=dataset.dtype,
write_size=block_write_roi.get_shape())
# save variables for other functions
self.total_roi = total_roi
self.block_read_roi = block_read_roi
self.block_write_roi = block_write_roi
self.dataset = dataset
self.output_dataset = output_dataset
def test_minimal(self):
labels = np.array([[[1, 1, 1, 2, 2, 3, 2, 2, 1, 140, 140, 0]]],
dtype=np.uint64)
roi = daisy.Roi((0, 0, 0), labels.shape)
voxel_size = (1, 1, 1)
block_size = (1, 1, 2)
with tempfile.TemporaryDirectory() as tmpdir:
a = daisy.Array(labels, roi=roi, voxel_size=voxel_size)
b = daisy.prepare_ds(os.path.join(tmpdir, 'array_out.zarr'),
'/volumes/b',
total_roi=roi,
voxel_size=voxel_size,
write_size=block_size,
dtype=np.uint64)
b.data[:] = 0
segment.arrays.relabel_connected_components(a, b, block_size, 1)
b = b.data[:].flatten()
self.assertTrue(b[0] == b[1] == b[2])
self.assertTrue(b[3] == b[4])
self.assertTrue(b[6] == b[7])
self.assertTrue(b[9] == b[10])
self.assertTrue(b[2] != b[3])
self.assertTrue(b[4] != b[5])
self.assertTrue(b[5] != b[6])
self.assertTrue(b[7] != b[8])
self.assertTrue(b[8] != b[9])
self.assertTrue(b[10] != b[11])
def predict_blockwise(base_dir, experiment, train_number, predict_number,
iteration, in_container_spec, in_container, in_dataset,
in_offset, in_size, out_container, db_name, db_host,
singularity_container, num_cpus, num_cache_workers,
num_block_workers, queue, mount_dirs, **kwargs):
'''Run prediction in parallel blocks. Within blocks, predict in chunks.
Args:
experiment (``string``):
Name of the experiment (cremi, fib19, fib25, ...).
setup (``string``):
Name of the setup to predict.
iteration (``int``):
Training iteration to predict from.
raw_file (``string``):
raw_dataset (``string``):
auto_file (``string``):
auto_dataset (``string``):
Paths to the input autocontext datasets (affs or lsds). Can be None if not needed.
out_file (``string``):
Path to directory where zarr should be stored
**Note:
out_dataset no longer needed as input, build out_dataset from config
outputs dictionary generated in mknet.py
file_name (``string``):
Name of output file
block_size_in_chunks (``tuple`` of ``int``):
The size of one block in chunks (not voxels!). A chunk corresponds
to the output size of the network.
num_workers (``int``):
How many blocks to run in parallel.
queue (``string``):
Name of queue to run inference on (i.e slowpoke, gpu_rtx, gpu_any,
gpu_tesla, gpu_tesla_large)
'''
predict_setup_dir = os.path.join(
os.path.join(base_dir, experiment),
"02_predict/setup_t{}_p{}".format(train_number, predict_number))
train_setup_dir = os.path.join(os.path.join(base_dir, experiment),
"01_train/setup_t{}".format(train_number))
# from here on, all values are in world units (unless explicitly mentioned)
# get ROI of source
source = daisy.open_ds(in_container_spec, in_dataset)
logger.info('Source dataset has shape %s, ROI %s, voxel size %s' %
(source.shape, source.roi, source.voxel_size))
# Read network config
predict_net_config = os.path.join(predict_setup_dir, 'predict_net.json')
with open(predict_net_config) as f:
logger.info('Reading setup config from {}'.format(predict_net_config))
net_config = json.load(f)
outputs = net_config['outputs']
# get chunk size and context
net_input_size = daisy.Coordinate(
net_config['input_shape']) * source.voxel_size
net_output_size = daisy.Coordinate(
net_config['output_shape']) * source.voxel_size
context = (net_input_size - net_output_size) / 2
logger.info('Network context: {}'.format(context))
# get total input and output ROIs
input_roi = source.roi.grow(context, context)
output_roi = source.roi
# create read and write ROI
block_read_roi = daisy.Roi((0, 0, 0), net_input_size) - context
block_write_roi = daisy.Roi((0, 0, 0), net_output_size)
logger.info('Preparing output dataset...')
for output_name, val in outputs.items():
out_dims = val['out_dims']
out_dtype = val['out_dtype']
out_dataset = 'volumes/%s' % output_name
ds = daisy.prepare_ds(out_container,
out_dataset,
output_roi,
source.voxel_size,
out_dtype,
write_roi=block_write_roi,
num_channels=out_dims,
compressor={
'id': 'gzip',
'level': 5
})
logger.info('Starting block-wise processing...')
client = pymongo.MongoClient(db_host)
db = client[db_name]
if 'blocks_predicted' not in db.list_collection_names():
blocks_predicted = db['blocks_predicted']
blocks_predicted.create_index([('block_id', pymongo.ASCENDING)],
name='block_id')
else:
blocks_predicted = db['blocks_predicted']
# process block-wise
succeeded = daisy.run_blockwise(
input_roi,
block_read_roi,
block_write_roi,
process_function=lambda: predict_worker(
train_setup_dir, predict_setup_dir, predict_number, train_number,
experiment, iteration, in_container, in_dataset, out_container,
db_host, db_name, queue, singularity_container, num_cpus,
num_cache_workers, mount_dirs),
check_function=lambda b: check_block(blocks_predicted, b),
num_workers=num_block_workers,
read_write_conflict=False,
fit='overhang')
if not succeeded:
raise RuntimeError("Prediction failed for (at least) one block")
def create_from_array_identifier(
cls,
array_identifier,
axes,
roi,
num_channels,
voxel_size,
dtype,
write_size=None,
name=None,
):
"""
Create a new ZarrArray given an array identifier. It is assumed that
this array_identifier points to a dataset that does not yet exist
"""
if write_size is None:
# total storage per block is approx c*x*y*z*dtype_size
# appropriate block size about 5MB.
axis_length = (
(1024**2 * 5 /
(num_channels if num_channels is not None else 1) /
np.dtype(dtype).itemsize)**(1 / voxel_size.dims)) // 1
write_size = Coordinate(
(axis_length, ) * voxel_size.dims) * voxel_size
write_size = Coordinate(
(min(a, b) for a, b in zip(write_size, roi.shape)))
zarr_container = zarr.open(array_identifier.container, "a")
try:
daisy.prepare_ds(
f"{array_identifier.container}",
array_identifier.dataset,
roi,
voxel_size,
dtype,
num_channels=num_channels,
write_size=write_size,
)
zarr_dataset = zarr_container[array_identifier.dataset]
zarr_dataset.attrs["offset"] = roi.offset
zarr_dataset.attrs["resolution"] = voxel_size
zarr_dataset.attrs["axes"] = axes
except zarr.errors.ContainsArrayError:
zarr_dataset = zarr_container[array_identifier.dataset]
assert (tuple(zarr_dataset.attrs["offset"]) == roi.offset
), f"{zarr_dataset.attrs['offset']}, {roi.offset}"
assert (tuple(zarr_dataset.attrs["resolution"]) == voxel_size
), f"{zarr_dataset.attrs['resolution']}, {voxel_size}"
assert tuple(zarr_dataset.attrs["axes"]) == tuple(
axes), f"{zarr_dataset.attrs['axes']}, {axes}"
assert (
zarr_dataset.shape == (
(num_channels, ) if num_channels is not None else
()) + roi.shape / voxel_size
), f"{zarr_dataset.shape}, {((num_channels,) if num_channels is not None else ()) + roi.shape / voxel_size}"
zarr_dataset[:] = np.zeros(zarr_dataset.shape, dtype)
zarr_array = cls.__new__(cls)
zarr_array.file_name = array_identifier.container
zarr_array.dataset = array_identifier.dataset
zarr_array._axes = None
zarr_array._attributes = zarr_array.data.attrs
zarr_array.snap_to_grid = None
return zarr_array
def predict_blockwise(experiment,
setup,
iteration,
raw_file,
raw_dataset,
out_directory,
out_filename,
num_workers,
db_host,
db_name,
worker_config=None,
out_properties={},
overwrite=False,
configname='test'):
'''Run prediction in parallel blocks. Within blocks, predict in chunks.
Args:
experiment (``string``):
Name of the experiment (cremi, fib19, fib25, ...).
setup (``string``):
Name of the setup to predict.
iteration (``int``):
Training iteration to predict from.
raw_file (``string``):
Input raw file for network to predict from.
raw_dataset (``string``):
Datasetname of raw data.
out_directory (``string``):
Output base directory.
out_filename (``string``):
File is written to <out_directory>/<setup>/<iteration>/<out_filename>
num_workers (``int``):
How many blocks to run in parallel.
db_host (``string``):
MongoDB host. This is used to monitor block completeness.
db_name (``db_name``):
MongoDB name. A collection is created with `blocks_predicted` for
monitoring blocks.
out_properties (``dic``, optional):
Use this to set properties for the output data. The dictionary
maps from tensorflow name to properties (all optional):
- dsname: sets the datasetname, if not provided, tensorflow name is used
- dtype: sets the dtype (make sure that you scale and clip
accordingly). If not provided, the dtype in config file is used.
- scale: scales the data and sets dataset attribute 'scale'
configname (``string``, optional):
Name of the configfile: Networksetups (such as input_size and
output_size) are loaded from file: <configname>_net_config.json.
This should be the same file that the predict script loads.
Train usually indicates a smaller network than test (test network
is written out for larger datasets/production).
overwrite (``bool``, optional):
If set to True, inference is started form scratch and log info
from `blocks_predicted` is ignored, database collection
`blocks_predicted` is overwritten.
'''
experiment_dir = '../'
train_dir = os.path.join(experiment_dir, 'train', experiment)
if not os.path.exists(train_dir):
train_dir = os.path.join(experiment_dir, 'train')
db_name = db_name + '_{}_{}'.format(setup, iteration)
if experiment != 'cremi':
db_name += f'_{experiment}'
network_dir = os.path.join(experiment, setup, str(iteration))
if experiment != 'cremi': # backwards compatability
out_directory = os.path.join(out_directory, experiment)
raw_file = os.path.abspath(raw_file)
out_file = os.path.abspath(
os.path.join(out_directory, setup, str(iteration), out_filename))
setup = os.path.abspath(os.path.join(train_dir, setup))
print('Input file path: ', raw_file)
print('Output file path: ', out_file)
# from here on, all values are in world units (unless explicitly mentioned)
# get ROI of source
try:
source = daisy.open_ds(raw_file, raw_dataset)
except:
raw_dataset = raw_dataset + '/s0'
source = daisy.open_ds(raw_file, raw_dataset)
print("Source dataset has shape %s, ROI %s, voxel size %s" %
(source.shape, source.roi, source.voxel_size))
# load config
with open(os.path.join(setup,
'{}_net_config.json'.format(configname))) as f:
print("Reading setup config from %s" %
os.path.join(setup, '{}_net_config.json'.format(configname)))
net_config = json.load(f)
outputs = net_config['outputs']
# get chunk size and context
net_input_size = daisy.Coordinate(
net_config['input_shape']) * source.voxel_size
net_output_size = daisy.Coordinate(
net_config['output_shape']) * source.voxel_size
context = (net_input_size - net_output_size) / 2
# get total input and output ROIs
input_roi = source.roi.grow(context, context)
output_roi = source.roi
print("Following sizes in world units:")
print("net input size = %s" % (net_input_size, ))
print("net output size = %s" % (net_output_size, ))
print("context = %s" % (context, ))
# create read and write ROI
block_read_roi = daisy.Roi((0, 0, 0), net_input_size) - context
block_write_roi = daisy.Roi((0, 0, 0), net_output_size)
print("Following ROIs in world units:")
print("Block read ROI = %s" % block_read_roi)
print("Block write ROI = %s" % block_write_roi)
print("Total input ROI = %s" % input_roi)
print("Total output ROI = %s" % output_roi)
logging.info('Preparing output dataset')
print("Preparing output dataset...")
for outputname, val in outputs.items():
out_dims = val['out_dims']
out_dtype = val['out_dtype']
scale = None
print(outputname)
if outputname in out_properties:
out_property = out_properties[outputname]
out_dtype = out_property[
'dtype'] if 'dtype' in out_property else out_dtype
scale = out_property['scale'] if 'scale' in out_property else None
outputname = out_property[
'dsname'] if 'dsname' in out_property else outputname
print('setting dtype to {}'.format(out_dtype))
out_dataset = 'volumes/%s' % outputname
print('Creatining dataset: {}'.format(out_dataset))
print('Number of dimensions is %i' % out_dims)
ds = daisy.prepare_ds(
out_file,
out_dataset,
output_roi,
source.voxel_size,
out_dtype,
write_roi=block_write_roi,
num_channels=out_dims,
# temporary fix until
# https://github.com/zarr-developers/numcodecs/pull/87 gets approved
# (we want gzip to be the default)
compressor={
'id': 'gzip',
'level': 5
})
if scale is not None:
ds.data.attrs['scale'] = scale
print("Starting block-wise processing...")
client = pymongo.MongoClient(db_host)
db = client[db_name]
if overwrite:
db.drop_collection('blocks_predicted')
if 'blocks_predicted' not in db.list_collection_names():
blocks_predicted = db['blocks_predicted']
blocks_predicted.create_index([('block_id', pymongo.ASCENDING)],
name='block_id')
else:
blocks_predicted = db['blocks_predicted']
# process block-wise
succeeded = daisy.run_blockwise(
input_roi,
block_read_roi,
block_write_roi,
process_function=lambda: predict_worker(
setup, network_dir, iteration, raw_file, raw_dataset, out_file,
out_properties, db_host, db_name, configname, worker_config),
check_function=lambda b: check_block(blocks_predicted, b),
num_workers=num_workers,
read_write_conflict=False,
fit='overhang')
if not succeeded:
raise RuntimeError("Prediction failed for (at least) one block")
def save_samples(pred_affs, pred_affs_ds, segmentation, labels, labels_dataset,
fragments, boundarys, distances, seeds, history, threshold,
curr_log_dir, checkpoint, is_2d):
voxel_size = labels_dataset.voxel_size
roi = labels_dataset.roi
if is_2d:
voxel_size = (1, *voxel_size)
roi = daisy.Roi((0, *roi.get_offset()), (1, *roi.get_shape()))
labels = labels[np.newaxis]
segmentation = segmentation[np.newaxis]
zarr_file = os.path.join(
curr_log_dir,
f'samples/sample_{checkpoint}_thresh' + f'_{threshold}.zarr')
seg = daisy.prepare_ds(zarr_file,
ds_name='segmentation',
total_roi=roi,
voxel_size=voxel_size,
dtype=np.uint64,
num_channels=1)
gt = daisy.prepare_ds(zarr_file,
ds_name='gt',
total_roi=roi,
voxel_size=voxel_size,
dtype=np.uint64,
num_channels=1)
pred = daisy.prepare_ds(zarr_file,
ds_name='affs',
total_roi=pred_affs_ds.roi,
voxel_size=pred_affs_ds.voxel_size,
dtype=pred_affs_ds.dtype,
num_channels=pred_affs.shape[0])
utils.save_zarr(fragments,
zarr_file,
ds='fragment',
roi=fragments.shape,
voxel_size=voxel_size,
fit_voxel=True)
utils.save_zarr(boundarys,
zarr_file,
ds='boundary',
roi=boundarys.shape,
voxel_size=voxel_size,
fit_voxel=True)
utils.save_zarr(distances,
zarr_file,
ds='dist_trfm',
roi=distances.shape,
voxel_size=voxel_size,
fit_voxel=True)
utils.save_zarr(seeds,
zarr_file,
ds='seeds',
roi=seeds.shape,
voxel_size=voxel_size,
fit_voxel=True)
seg.data[:] = segmentation
gt.data[:] = labels
pred.data[:] = pred_affs
history = [merge for thresh in history for merge in thresh]
history = pd.DataFrame(history)
history.to_csv(
os.path.join(curr_log_dir, f'samples/sample_{checkpoint}_hist' +
f'_{threshold}.csv'))
def _task_init(self):
logger.info(f"Accessing {self.in_ds_name} in {self.in_file}")
try:
self.in_ds = daisy.open_ds(self.in_file, self.in_ds_name)
except Exception as e:
logger.info(f"EXCEPTION: {e}")
exit(1)
voxel_size = self.in_ds.voxel_size
if self.in_ds.n_channel_dims == 0:
num_channels = 1
elif self.in_ds.n_channel_dims == 1:
num_channels = self.in_ds.shape[0]
else:
raise RuntimeError(
"more than one channel not yet implemented, sorry...")
self.ds_roi = self.in_ds.roi
sub_roi = None
if self.roi_offset is not None or self.roi_shape is not None:
assert self.roi_offset is not None and self.roi_shape is not None
self.schedule_roi = daisy.Roi(
tuple(self.roi_offset), tuple(self.roi_shape))
sub_roi = self.schedule_roi
else:
self.schedule_roi = self.in_ds.roi
if self.chunk_shape_voxel is None:
self.chunk_shape_voxel = calculateNearIsotropicDimensions(
voxel_size, self.max_voxel_count)
logger.info(voxel_size)
logger.info(self.chunk_shape_voxel)
self.chunk_shape_voxel = Coordinate(self.chunk_shape_voxel)
self.schedule_roi = self.schedule_roi.snap_to_grid(
voxel_size,
mode='grow')
out_ds_roi = self.ds_roi.snap_to_grid(
voxel_size,
mode='grow')
self.write_size = self.chunk_shape_voxel*voxel_size
scheduling_block_size = self.write_size
self.write_roi = daisy.Roi((0, 0, 0), scheduling_block_size)
if sub_roi is not None:
# with sub_roi, the coordinates are absolute
# so we'd need to align total_roi to the write size too
self.schedule_roi = self.schedule_roi.snap_to_grid(
self.write_size, mode='grow')
out_ds_roi = out_ds_roi.snap_to_grid(
self.write_size, mode='grow')
logger.info(f"out_ds_roi: {out_ds_roi}")
logger.info(f"schedule_roi: {self.schedule_roi}")
logger.info(f"write_size: {self.write_size}")
logger.info(f"voxel_size: {voxel_size}")
if self.out_file is None:
self.out_file = '.'.join(self.in_file.split('.')[0:-1])+'.zarr'
if self.out_ds_name is None:
self.out_ds_name = self.in_ds_name
delete = self.overwrite == 2
self.out_ds = daisy.prepare_ds(
self.out_file,
self.out_ds_name,
total_roi=out_ds_roi,
voxel_size=voxel_size,
write_size=self.write_size,
dtype=self.in_ds.dtype,
num_channels=num_channels,
force_exact_write_size=True,
compressor={'id': 'blosc', 'clevel': 3},
delete=delete,
)
def extract_segmentation(fragments_file,
fragments_dataset,
edges_collection,
threshold,
block_size,
out_file,
out_dataset,
num_workers,
roi_offset=None,
roi_shape=None,
run_type=None,
**kwargs):
'''
Args:
fragments_file (``string``):
Path to file (zarr/n5) containing fragments (supervoxels).
fragments_dataset (``string``):
Name of fragments dataset (e.g `volumes/fragments`)
edges_collection (``string``):
The name of the MongoDB database edges collection to use.
threshold (``float``):
The threshold to use for generating a segmentation.
block_size (``tuple`` of ``int``):
The size of one block in world units (must be multiple of voxel
size).
out_file (``string``):
Path to file (zarr/n5) to write segmentation to.
out_dataset (``string``):
Name of segmentation dataset (e.g `volumes/segmentation`).
num_workers (``int``):
How many workers to use when reading the region adjacency graph
blockwise.
roi_offset (array-like of ``int``, optional):
The starting point (inclusive) of the ROI. Entries can be ``None``
to indicate unboundedness.
roi_shape (array-like of ``int``, optional):
The shape of the ROI. Entries can be ``None`` to indicate
unboundedness.
run_type (``string``, optional):
Can be used to direct luts into directory (e.g testing, validation,
etc).
'''
# open fragments
fragments = daisy.open_ds(fragments_file, fragments_dataset)
total_roi = fragments.roi
if roi_offset is not None:
assert roi_shape is not None, "If roi_offset is set, roi_shape " \
"also needs to be provided"
total_roi = daisy.Roi(offset=roi_offset, shape=roi_shape)
read_roi = daisy.Roi((0, ) * 3, daisy.Coordinate(block_size))
write_roi = read_roi
logging.info("Preparing segmentation dataset...")
segmentation = daisy.prepare_ds(out_file,
out_dataset,
total_roi,
voxel_size=fragments.voxel_size,
dtype=np.uint64,
write_roi=write_roi)
lut_filename = f'seg_{edges_collection}_{int(threshold*100)}'
lut_dir = os.path.join(fragments_file, 'luts', 'fragment_segment')
if run_type:
lut_dir = os.path.join(lut_dir, run_type)
logging.info(f"Run type set, using luts from {run_type} data")
lut = os.path.join(lut_dir, lut_filename + '.npz')
assert os.path.exists(lut), f"{lut} does not exist"
logging.info("Reading fragment-segment LUT...")
lut = np.load(lut)['fragment_segment_lut']
logging.info(f"Found {len(lut[0])} fragments in LUT")
num_segments = len(np.unique(lut[1]))
logging.info(f"Relabelling fragments to {num_segments} segments")
daisy.run_blockwise(total_roi,
read_roi,
write_roi,
lambda b: segment_in_block(
b, fragments_file, segmentation, fragments, lut),
fit='shrink',
num_workers=num_workers)
block_read_roi = daisy.Roi((0,)*ndims, block_read_size)
block_write_roi = daisy.Roi(context, block_write_size)
# prepare output dataset
output_roi = total_roi.grow(-context, -context)
if config.out_file is None:
config.out_file = config.in_file
if config.out_ds_name is None:
config.out_ds_name = config.in_ds_name + '_smoothed'
logger.info(f'Processing data to {config.out_file}/{config.out_ds_name}')
output_dataset = daisy.prepare_ds(
config.out_file,
config.out_ds_name,
total_roi=output_roi,
voxel_size=dataset.voxel_size,
dtype=dataset.dtype,
write_size=block_write_roi.get_shape())
# make task
task = daisy.Task(
'GaussianSmoothingTask',
total_roi,
block_read_roi,
block_write_roi,
process_function=lambda b: smooth(
b, dataset, output_dataset, sigma=config.sigma),
read_write_conflict=False,
num_workers=config.num_workers,
fit='shrink'
def extract_fragments(experiment,
setup,
iteration,
affs_file,
affs_dataset,
fragments_file,
fragments_dataset,
block_size,
context,
db_host,
db_name,
num_workers,
fragments_in_xy,
queue,
epsilon_agglomerate=0,
mask_file=None,
mask_dataset=None,
filter_fragments=0,
replace_sections=None,
**kwargs):
'''
Extract fragments in parallel blocks. Requires that affinities have been
predicted before.
When running parallel inference, the worker files are located in the setup
directory of each experiment since that is where the training was done and
checkpoints are located. When running watershed (and agglomeration) in
parallel, we call a worker file which can be located anywhere. By default,
we assume there is a workers directory inside the current directory that
contains worker scripts (e.g `workers/extract_fragments_worker.py`).
Args:
* following three params just used to build out file directory *
experiment (``string``):
Name of the experiment (fib25, hemi, zfinch, ...).
setup (``string``):
Name of the setup to predict (setup01, setup02, ...).
iteration (``int``):
Training iteration.
affs_file (``string``):
Path to file (zarr/n5) where predictions are stored.
affs_dataset (``string``):
Predictions dataset to use (e.g 'volumes/affs'). If using a scale pyramid,
will try scale zero assuming stored in directory `s0` (e.g
'volumes/affs/s0').
fragments_file (``string``):
Path to file (zarr/n5) to store fragments (supervoxels) - generally
a good idea to store in the same place as affs.
fragments_dataset (``string``):
Name of dataset to write fragments (supervoxels) to (e.g
'volumes/fragments').
block_size (``tuple`` of ``int``):
The size of one block in world units (must be multiple of voxel
size).
context (``tuple`` of ``int``):
The context to consider for fragment extraction in world units.
db_host (``string``):
Name of MongoDB client.
db_name (``string``):
Name of MongoDB database to use (for logging successful blocks in
check function and writing nodes to the region adjacency graph).
num_workers (``int``):
How many blocks to run in parallel.
fragments_in_xy (``bool``):
Whether to extract fragments for each xy-section separately.
queue (``string``):
Name of cpu queue to use (e.g local)
epsilon_agglomerate (``float``, optional):
Perform an initial waterz agglomeration on the extracted fragments
to this threshold. Skip if 0 (default).
mask_file (``string``, optional):
Path to file (zarr/n5) containing mask.
mask_dataset (``string``, optional):
Name of mask dataset. Data should be uint8 where 1 == masked in, 0
== masked out.
filter_fragments (``float``, optional):
Filter fragments that have an average affinity lower than this
value.
replace_sections (``list`` of ``int``, optional):
Replace fragments data with zero in given sections (useful if large
artifacts are causing issues). List of section numbers (in voxels).
'''
logging.info(f"Reading affs from {affs_file}")
try:
affs = daisy.open_ds(affs_file, affs_dataset)
except:
affs_dataset = affs_dataset + '/s0'
source = daisy.open_ds(affs_file, affs_dataset)
network_dir = os.path.join(experiment, setup, str(iteration))
client = pymongo.MongoClient(db_host)
db = client[db_name]
if 'blocks_extracted' not in db.list_collection_names():
blocks_extracted = db['blocks_extracted']
blocks_extracted.create_index([('block_id', pymongo.ASCENDING)],
name='block_id')
else:
blocks_extracted = db['blocks_extracted']
# prepare fragments dataset. By default use same roi as affinities, change
# roi if extracting fragments in cropped region
fragments = daisy.prepare_ds(fragments_file,
fragments_dataset,
affs.roi,
affs.voxel_size,
np.uint64,
daisy.Roi((0, 0, 0), block_size),
compressor={
'id': 'zlib',
'level': 5
})
context = daisy.Coordinate(context)
total_roi = affs.roi.grow(context, context)
read_roi = daisy.Roi((0, ) * affs.roi.dims(),
block_size).grow(context, context)
write_roi = daisy.Roi((0, ) * affs.roi.dims(), block_size)
#get number of voxels in block
num_voxels_in_block = (write_roi / affs.voxel_size).size()
#blockwise watershed
daisy.run_blockwise(
total_roi=total_roi,
read_roi=read_roi,
write_roi=write_roi,
process_function=lambda: start_worker(
affs_file, affs_dataset, fragments_file, fragments_dataset,
db_host, db_name, context, fragments_in_xy, queue, network_dir,
epsilon_agglomerate, mask_file, mask_dataset, filter_fragments,
replace_sections, num_voxels_in_block),
check_function=lambda b: check_block(blocks_extracted, b),
num_workers=num_workers,
read_write_conflict=False,
fit='shrink')
def predict_blockwise(config_file, iteration):
config = {
"solve_context": daisy.Coordinate((2, 100, 100, 100)),
"num_workers": 16,
"data_dir": '../01_data',
"setups_dir": '../02_setups',
}
master_config = load_config(config_file)
config.update(master_config['general'])
config.update(master_config['predict'])
sample = config['sample']
data_dir = config['data_dir']
setup = config['setup']
# solve_context = daisy.Coordinate(master_config['solve']['context'])
setup_dir = os.path.abspath(os.path.join(config['setups_dir'], setup))
voxel_size, source_roi = get_source_roi(data_dir, sample)
predict_roi = source_roi
# limit to specific frames, if given
if 'limit_to_roi_offset' in config or 'frames' in config:
if 'frames' in config:
frames = config['frames']
logger.info("Limiting prediction to frames %s" % str(frames))
begin, end = frames
frames_roi = daisy.Roi((begin, None, None, None),
(end - begin, None, None, None))
predict_roi = predict_roi.intersect(frames_roi)
if 'limit_to_roi_offset' in config:
assert 'limit_to_roi_shape' in config,\
"Must specify shape and offset in config file"
limit_to_roi = daisy.Roi(
daisy.Coordinate(config['limit_to_roi_offset']),
daisy.Coordinate(config['limit_to_roi_shape']))
predict_roi = predict_roi.intersect(limit_to_roi)
# Given frames and rois are the prediction region,
# not the solution region
# predict_roi = target_roi.grow(solve_context, solve_context)
# predict_roi = predict_roi.intersect(source_roi)
# get context and total input and output ROI
with open(os.path.join(setup_dir, 'test_net_config.json'), 'r') as f:
net_config = json.load(f)
net_input_size = net_config['input_shape']
net_output_size = net_config['output_shape_2']
net_input_size = daisy.Coordinate(net_input_size) * voxel_size
net_output_size = daisy.Coordinate(net_output_size) * voxel_size
context = (net_input_size - net_output_size) / 2
# expand predict roi to multiple of block write_roi
predict_roi = predict_roi.snap_to_grid(net_output_size, mode='grow')
input_roi = predict_roi.grow(context, context)
output_roi = predict_roi
# prepare output zarr, if necessary
if 'output_zarr' in config:
output_zarr = config['output_zarr']
parent_vectors_ds = 'volumes/parent_vectors'
cell_indicator_ds = 'volumes/cell_indicator'
output_path = os.path.join(setup_dir, output_zarr)
logger.debug("Preparing zarr at %s" % output_path)
daisy.prepare_ds(output_path,
parent_vectors_ds,
output_roi,
voxel_size,
dtype=np.float32,
write_size=net_output_size,
num_channels=3)
daisy.prepare_ds(output_path,
cell_indicator_ds,
output_roi,
voxel_size,
dtype=np.float32,
write_size=net_output_size,
num_channels=1)
# create read and write ROI
block_write_roi = daisy.Roi((0, 0, 0, 0), net_output_size)
block_read_roi = block_write_roi.grow(context, context)
logger.info("Following ROIs in world units:")
logger.info("Input ROI = %s" % input_roi)
logger.info("Block read ROI = %s" % block_read_roi)
logger.info("Block write ROI = %s" % block_write_roi)
logger.info("Output ROI = %s" % output_roi)
logger.info("Starting block-wise processing...")
# process block-wise
if 'db_name' in config:
daisy.run_blockwise(
input_roi,
block_read_roi,
block_write_roi,
process_function=lambda: predict_worker(config_file, iteration),
check_function=lambda b: check_function(b, 'predict', config[
'db_name'], config['db_host']),
num_workers=config['num_workers'],
read_write_conflict=False,
max_retries=0,
fit='valid')
else:
daisy.run_blockwise(
input_roi,
block_read_roi,
block_write_roi,
process_function=lambda: predict_worker(config_file, iteration),
num_workers=config['num_workers'],
read_write_conflict=False,
max_retries=0,
fit='valid')
def save_zarr(data,
zarr_file,
ds,
roi,
voxel_size=(1, 1, 1),
num_channels=1,
dtype=None,
fit_voxel=False):
"""
Helper function to save_zarr files using daisy.
Args:
data (`numpy array`):
The data that you want to save.
zarr_file (`string`):
The zarr file you want to save to.
ds (`string`):
The dataset that the data should be saved as.
roi (`daisy.Roi` or `list-like`):
The roi to save the datset as.
voxel_size (`tuple`, default=(1, 1, 1)):
The voxel size to save the dataset as.
num_channels (`int`, default=1):
How many channels the data has.
Note: Daisy only supports saving zarrs with a single
channel dim, so (num_channels, roi) is the only possible
shape of the data.
dtype (`numpy dtype`, optional):
The datatype to save the data as
fit_voxel (`bool`):
If true then the roi will be multiplied by the voxel_size.
This is useful if the ROI is in unit voxels and you want it
to be in world units.
"""
if not isinstance(roi, daisy.Roi):
roi = daisy.Roi([0 for d in range(len(roi))], roi)
if fit_voxel:
roi = roi * voxel_size
if dtype is None:
dtype = data.dtype
dataset = daisy.prepare_ds(zarr_file,
ds_name=ds,
total_roi=roi,
voxel_size=voxel_size,
dtype=data.dtype,
num_channels=num_channels)
if roi.dims() > len(data.shape) and num_channels == 1:
data = np.squeeze(data, 0)
dataset.data[:] = data
def create_scale_pyramid(in_file, in_ds_name, scales, chunk_shape):
ds = zarr.open(in_file)
# make sure in_ds_name points to a dataset
try:
daisy.open_ds(in_file, in_ds_name)
except Exception:
raise RuntimeError("%s does not seem to be a dataset" % in_ds_name)
if not in_ds_name.endswith('/s0'):
ds_name = in_ds_name + '/s0'
print("Moving %s to %s" % (in_ds_name, ds_name))
ds.store.rename(in_ds_name, in_ds_name + '__tmp')
ds.store.rename(in_ds_name + '__tmp', ds_name)
else:
ds_name = in_ds_name
in_ds_name = in_ds_name[:-3]
print("Scaling %s by a factor of %s" % (in_file, scales))
prev_array = daisy.open_ds(in_file, ds_name)
if chunk_shape is not None:
chunk_shape = daisy.Coordinate(chunk_shape)
else:
chunk_shape = daisy.Coordinate(prev_array.data.chunks)
print("Reusing chunk shape of %s for new datasets" % (chunk_shape, ))
if prev_array.n_channel_dims == 0:
num_channels = 1
elif prev_array.n_channel_dims == 1:
num_channels = prev_array.shape[0]
else:
raise RuntimeError(
"more than one channel not yet implemented, sorry...")
for scale_num, scale in enumerate(scales):
try:
scale = daisy.Coordinate(scale)
except Exception:
scale = daisy.Coordinate((scale, ) * chunk_shape.dims())
next_voxel_size = prev_array.voxel_size * scale
next_total_roi = prev_array.roi.snap_to_grid(next_voxel_size,
mode='grow')
next_write_size = chunk_shape * next_voxel_size
print("Next voxel size: %s" % (next_voxel_size, ))
print("Next total ROI: %s" % next_total_roi)
print("Next chunk size: %s" % (next_write_size, ))
next_ds_name = in_ds_name + '/s' + str(scale_num + 1)
print("Preparing %s" % (next_ds_name, ))
next_array = daisy.prepare_ds(in_file,
next_ds_name,
total_roi=next_total_roi,
voxel_size=next_voxel_size,
write_size=next_write_size,
dtype=prev_array.dtype,
num_channels=num_channels)
downscale(prev_array, next_array, scale, next_write_size)
prev_array = next_array
def extract_segmentation(fragments_file,
fragments_dataset,
edges_collection,
threshold,
out_file,
out_dataset,
num_workers,
lut_fragment_segment,
roi_offset=None,
roi_shape=None,
run_type=None,
**kwargs):
# open fragments
fragments = daisy.open_ds(fragments_file, fragments_dataset)
total_roi = fragments.roi
if roi_offset is not None:
assert roi_shape is not None, "If roi_offset is set, roi_shape " \
"also needs to be provided"
total_roi = daisy.Roi(offset=roi_offset, shape=roi_shape)
read_roi = daisy.Roi((0, 0, 0), (5000, 5000, 5000))
write_roi = daisy.Roi((0, 0, 0), (5000, 5000, 5000))
logging.info("Preparing segmentation dataset...")
segmentation = daisy.prepare_ds(out_file,
out_dataset,
total_roi,
voxel_size=fragments.voxel_size,
dtype=np.uint64,
write_roi=write_roi)
lut_filename = 'seg_%s_%d' % (edges_collection, int(threshold * 100))
lut_dir = os.path.join(fragments_file, lut_fragment_segment)
if run_type:
lut_dir = os.path.join(lut_dir, run_type)
logging.info("Run type set, using luts from %s data" % run_type)
lut = os.path.join(lut_dir, lut_filename + '.npz')
assert os.path.exists(lut), "%s does not exist" % lut
start = time.time()
logging.info("Reading fragment-segment LUT...")
lut = np.load(lut)['fragment_segment_lut']
logging.info("%.3fs" % (time.time() - start))
logging.info("Found %d fragments in LUT" % len(lut[0]))
daisy.run_blockwise(total_roi,
read_roi,
write_roi,
lambda b: segment_in_block(
b, fragments_file, segmentation, fragments, lut),
fit='shrink',
num_workers=num_workers,
processes=True,
read_write_conflict=False)
def predict_blockwise(base_dir,
experiment,
setup,
iteration,
raw_file,
raw_dataset,
out_base,
file_name,
num_workers,
db_host,
db_name,
queue,
auto_file=None,
auto_dataset=None,
singularity_image=None):
'''
Run prediction in parallel blocks. Within blocks, predict in chunks.
Assumes a general directory structure:
base
├── fib25 (experiment dir)
│ │
│ ├── 01_data (data dir)
│ │ └── training_data (i.e zarr/n5, etc)
│ │
│ └── 02_train (train/predict dir)
│ │
│ ├── setup01 (setup dir - e.g baseline affinities)
│ │ │
│ │ ├── config.json (specifies meta data for inference)
│ │ │
│ │ ├── mknet.py (creates network, jsons to be used)
│ │ │
│ │ ├── model_checkpoint (saved network checkpoint for inference)
│ │ │
│ │ ├── predict.py (worker inference file - logic to be distributed)
│ │ │
│ │ ├── train_net.json (specifies meta data for training)
│ │ │
│ │ └── train.py (network training script)
│ │
│ ├── .
│ ├── .
│ ├── .
│ └── setup{n}
│
├── hemi-brain
├── zebrafinch
├── .
├── .
├── .
└── experiment{n}
Args:
base_dir (``string``):
Path to base directory containing experiment sub directories.
experiment (``string``):
Name of the experiment (fib25, hemi, zfinch, ...).
setup (``string``):
Name of the setup to predict (setup01, setup02, ...).
iteration (``int``):
Training iteration to predict from.
raw_file (``string``):
Path to raw file (zarr/n5) - can also be a json container
specifying a crop, where offset and size are in world units:
{
"container": "path/to/raw",
"offset": [z, y, x],
"size": [z, y, x]
}
raw_dataset (``string``):
Raw dataset to use (e.g 'volumes/raw'). If using a scale pyramid,
will try scale zero assuming stored in directory `s0` (e.g
'volumes/raw/s0')
out_base (``string``):
Path to base directory where zarr/n5 should be stored. The out_file
will be built from this directory, setup, iteration, file name
**Note:
out_dataset no longer needed as input, build out_dataset from config
outputs dictionary generated in mknet.py (config.json for
example)
file_name (``string``):
Name of output zarr/n5
num_workers (``int``):
How many blocks to run in parallel.
db_host (``string``):
Name of MongoDB client.
db_name (``string``):
Name of MongoDB database to use (for logging successful blocks in
check function and DaisyRequestBlocks node inside worker predict
script).
queue (``string``):
Name of gpu queue to run inference on (i.e gpu_rtx, gpu_tesla, etc)
auto_file (``string``, optional):
Path to zarr/n5 containing first pass predictions to use as input to
autocontext network (i.e aclsd / acrlsd). None if not needed
auto_dataset (``string``, optional):
Input dataset to use if running autocontext (e.g 'volumes/lsds').
None if not needed
singularity_image (``string``, optional):
Path to singularity image. None if not needed
'''
#get relevant dirs + files
experiment_dir = os.path.join(base_dir, experiment)
train_dir = os.path.join(experiment_dir, '02_train')
network_dir = os.path.join(experiment, setup, str(iteration))
raw_file = os.path.abspath(raw_file)
out_file = os.path.abspath(
os.path.join(out_base, setup, str(iteration), file_name))
setup = os.path.abspath(os.path.join(train_dir, setup))
# from here on, all values are in world units (unless explicitly mentioned)
# get ROI of source
try:
source = daisy.open_ds(raw_file, raw_dataset)
except:
raw_dataset = raw_dataset + '/s0'
source = daisy.open_ds(raw_file, raw_dataset)
logging.info(f'Source shape: {source.shape}')
logging.info(f'Source roi: {source.roi}')
logging.info(f'Source voxel size: {source.voxel_size}')
# load config
with open(os.path.join(setup, 'config.json')) as f:
net_config = json.load(f)
outputs = net_config['outputs']
# get chunk size and context for network (since unet has smaller output size
# than input size
net_input_size = daisy.Coordinate(
net_config['input_shape']) * source.voxel_size
net_output_size = daisy.Coordinate(
net_config['output_shape']) * source.voxel_size
context = (net_input_size - net_output_size) / 2
# get total input and output ROIs
input_roi = source.roi.grow(context, context)
output_roi = source.roi
# create read and write ROI
block_read_roi = daisy.Roi((0, 0, 0), net_input_size) - context
block_write_roi = daisy.Roi((0, 0, 0), net_output_size)
logging.info('Preparing output dataset...')
# get output file(s) meta data from config.json, prepare dataset(s)
for output_name, val in outputs.items():
out_dims = val['out_dims']
out_dtype = val['out_dtype']
out_dataset = 'volumes/%s' % output_name
ds = daisy.prepare_ds(out_file,
out_dataset,
output_roi,
source.voxel_size,
out_dtype,
write_roi=block_write_roi,
num_channels=out_dims,
compressor={
'id': 'gzip',
'level': 5
})
logging.info('Starting block-wise processing...')
# for logging successful blocks (see check_block function). if anything
# fails, blocks which completed will be skipped when re-running
client = pymongo.MongoClient(db_host)
db = client[db_name]
if 'blocks_predicted' not in db.list_collection_names():
blocks_predicted = db['blocks_predicted']
blocks_predicted.create_index([('block_id', pymongo.ASCENDING)],
name='block_id')
else:
blocks_predicted = db['blocks_predicted']
# process block-wise
succeeded = daisy.run_blockwise(
input_roi,
block_read_roi,
block_write_roi,
process_function=lambda: predict_worker(
experiment, setup, network_dir, iteration, raw_file, raw_dataset,
auto_file, auto_dataset, out_file, out_dataset, db_host, db_name,
queue, singularity_image),
check_function=lambda b: check_block(blocks_predicted, b),
num_workers=num_workers,
read_write_conflict=False,
fit='overhang')
if not succeeded:
raise RuntimeError("Prediction failed for (at least) one block")