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__main__.py
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__main__.py
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import sys, os, argparse, glob, pathlib, time
import subprocess
import numpy as np
from natsort import natsorted
from tqdm import tqdm
from cellpose import utils, models, io
try:
from cellpose.gui import gui
GUI_ENABLED = True
except ImportError as err:
GUI_ERROR = err
GUI_ENABLED = False
GUI_IMPORT = True
except Exception as err:
GUI_ENABLED = False
GUI_ERROR = err
GUI_IMPORT = False
raise
import logging
logger = logging.getLogger(__name__)
def confirm_prompt(question):
reply = None
while reply not in ("", "y", "n"):
reply = input(f"{question} (y/n): ").lower()
return (reply in ("", "y"))
def install(package):
subprocess.check_call([sys.executable, "-m", "pip", "install", package])
def check_omni(logger,omni=False):
if omni and not 'omnipose' not in sys.modules:
logger.info('Omnipose features requested but not installed.')
confirm = confirm_prompt('Install Omnipose?')
if confirm:
install('omnipose')
else:
logger.info('>>>> Omnipose not installed. Running with omni=False')
return confirm
# settings re-grouped a bit
def main():
parser = argparse.ArgumentParser(description='cellpose parameters')
# settings for CPU vs GPU
hardware_args = parser.add_argument_group("hardware arguments")
hardware_args.add_argument('--use_gpu', action='store_true', help='use gpu if torch or mxnet with cuda installed')
hardware_args.add_argument('--check_mkl', action='store_true', help='check if mkl working')
hardware_args.add_argument('--mkldnn', action='store_true', help='for mxnet, force MXNET_SUBGRAPH_BACKEND = "MKLDNN"')
# settings for locating and formatting images
input_img_args = parser.add_argument_group("input image arguments")
input_img_args.add_argument('--dir',
default=[], type=str, help='folder containing data to run or train on.')
input_img_args.add_argument('--look_one_level_down', action='store_true', help='run processing on all subdirectories of current folder')
input_img_args.add_argument('--mxnet', action='store_true', help='use mxnet')
input_img_args.add_argument('--img_filter',
default=[], type=str, help='end string for images to run on')
input_img_args.add_argument('--channel_axis',
default=None, type=int, help='axis of image which corresponds to image channels')
input_img_args.add_argument('--z_axis',
default=None, type=int, help='axis of image which corresponds to Z dimension')
input_img_args.add_argument('--chan',
default=0, type=int, help='channel to segment; 0: GRAY, 1: RED, 2: GREEN, 3: BLUE. Default: %(default)s')
input_img_args.add_argument('--chan2',
default=0, type=int, help='nuclear channel (if cyto, optional); 0: NONE, 1: RED, 2: GREEN, 3: BLUE. Default: %(default)s')
input_img_args.add_argument('--invert', action='store_true', help='invert grayscale channel')
input_img_args.add_argument('--all_channels', action='store_true', help='use all channels in image if using own model and images with special channels')
# model settings
model_args = parser.add_argument_group("model arguments")
parser.add_argument('--pretrained_model', required=False, default='cyto', type=str, help='model to use')
parser.add_argument('--unet', required=False, default=0, type=int, help='run standard unet instead of cellpose flow output')
model_args.add_argument('--nclasses',default=3, type=int, help='if running unet, choose 2 or 3; if training omni, choose 4; standard Cellpose uses 3')
# algorithm settings
algorithm_args = parser.add_argument_group("algorithm arguments")
parser.add_argument('--omni', action='store_true', help='Omnipose algorithm (disabled by default)')
parser.add_argument('--cluster', action='store_true', help='DBSCAN clustering. Reduces oversegmentation of thin features (disabled by default).')
parser.add_argument('--fast_mode', action='store_true', help='make code run faster by turning off 4 network averaging and resampling')
parser.add_argument('--no_resample', action='store_true', help="disable dynamics on full image (makes algorithm faster for images with large diameters)")
parser.add_argument('--no_net_avg', action='store_true', help='make code run faster by only running 1 network')
parser.add_argument('--no_interp', action='store_true', help='do not interpolate when running dynamics (was default)')
parser.add_argument('--do_3D', action='store_true', help='process images as 3D stacks of images (nplanes x nchan x Ly x Lx')
parser.add_argument('--diameter', required=False, default=30., type=float,
help='cell diameter, if 0 cellpose will estimate for each image')
parser.add_argument('--stitch_threshold', required=False, default=0.0, type=float, help='compute masks in 2D then stitch together masks with IoU>0.9 across planes')
algorithm_args.add_argument('--flow_threshold', default=0.4, type=float, help='flow error threshold, 0 turns off this optional QC step. Default: %(default)s')
algorithm_args.add_argument('--mask_threshold', default=0, type=float, help='mask threshold, default is 0, decrease to find more and larger masks')
parser.add_argument('--anisotropy', required=False, default=1.0, type=float,
help='anisotropy of volume in 3D')
parser.add_argument('--diam_threshold', required=False, default=12.0, type=float,
help='cell diameter threshold for upscaling before mask rescontruction, default 12.')
parser.add_argument('--exclude_on_edges', action='store_true', help='discard masks which touch edges of image')
# output settings
output_args = parser.add_argument_group("output arguments")
output_args.add_argument('--save_png', action='store_true', help='save masks as png and outlines as text file for ImageJ')
output_args.add_argument('--save_tif', action='store_true', help='save masks as tif and outlines as text file for ImageJ')
output_args.add_argument('--no_npy', action='store_true', help='suppress saving of npy')
output_args.add_argument('--savedir',
default=None, type=str, help='folder to which segmentation results will be saved (defaults to input image directory)')
output_args.add_argument('--dir_above', action='store_true', help='save output folders adjacent to image folder instead of inside it (off by default)')
output_args.add_argument('--in_folders', action='store_true', help='flag to save output in folders (off by default)')
output_args.add_argument('--save_flows', action='store_true', help='whether or not to save RGB images of flows when masks are saved (disabled by default)')
output_args.add_argument('--save_outlines', action='store_true', help='whether or not to save RGB outline images when masks are saved (disabled by default)')
output_args.add_argument('--save_ncolor', action='store_true', help='whether or not to save minimal "n-color" masks (disabled by default')
output_args.add_argument('--save_txt', action='store_true', help='flag to enable txt outlines for ImageJ (disabled by default)')
# training settings
training_args = parser.add_argument_group("training arguments")
training_args.add_argument('--train', action='store_true', help='train network using images in dir')
training_args.add_argument('--train_size', action='store_true', help='train size network at end of training')
training_args.add_argument('--mask_filter',
default='_masks', type=str, help='end string for masks to run on. Default: %(default)s')
training_args.add_argument('--test_dir',
default=[], type=str, help='folder containing test data (optional)')
training_args.add_argument('--learning_rate',
default=0.2, type=float, help='learning rate. Default: %(default)s')
training_args.add_argument('--n_epochs',
default=500, type=int, help='number of epochs. Default: %(default)s')
training_args.add_argument('--batch_size',
default=8, type=int, help='batch size. Default: %(default)s')
training_args.add_argument('--min_train_masks',
default=5, type=int, help='minimum number of masks a training image must have to be used. Default: %(default)s')
training_args.add_argument('--residual_on',
default=1, type=int, help='use residual connections')
training_args.add_argument('--style_on',
default=1, type=int, help='use style vector')
training_args.add_argument('--concatenation',
default=0, type=int, help='concatenate downsampled layers with upsampled layers (off by default which means they are added)')
training_args.add_argument('--save_every',
default=100, type=int, help='number of epochs to skip between saves. Default: %(default)s')
training_args.add_argument('--save_each', action='store_true', help='save the model under a different filename per --save_every epoch for later comparsion')
# misc settings
parser.add_argument('--verbose', action='store_true', help='flag to output extra information (e.g. diameter metrics) for debugging and fine-tuning parameters')
parser.add_argument('--testing', action='store_true', help='flag to suppress CLI user confirmation for saving output; for test scripts')
args = parser.parse_args()
# handle mxnet option
if args.check_mkl:
mkl_enabled = models.check_mkl((not args.mxnet))
else:
mkl_enabled = True
if not args.train and (mkl_enabled and args.mkldnn):
os.environ["MXNET_SUBGRAPH_BACKEND"]="MKLDNN"
else:
os.environ["MXNET_SUBGRAPH_BACKEND"]=""
if len(args.dir)==0:
if not GUI_ENABLED:
print('GUI ERROR: %s'%GUI_ERROR)
if GUI_IMPORT:
print('GUI FAILED: GUI dependencies may not be installed, to install, run')
print(' pip install cellpose[gui]')
else:
gui.run()
else:
if args.verbose:
from .io import logger_setup
logger, log_file = logger_setup()
else:
print('>>>> !NEW LOGGING SETUP! To see cellpose progress, set --verbose')
print('No --verbose => no progress or info printed')
logger = logging.getLogger(__name__)
use_gpu = False
channels = [args.chan, args.chan2]
# find images
if len(args.img_filter)>0:
imf = args.img_filter
else:
imf = None
# Check with user if they REALLY mean to run without saving anything
if not (args.train or args.train_size):
saving_something = args.save_png or args.save_tif or args.save_flows or args.save_ncolor or args.save_txt
device, gpu = models.assign_device((not args.mxnet), args.use_gpu)
#define available model names, right now we have three broad categories
model_names = ['cyto','nuclei','bact','cyto2','bact_omni','cyto2_omni']
builtin_model = np.any([args.pretrained_model==s for s in model_names])
cytoplasmic = 'cyto' in args.pretrained_model
nuclear = 'nuclei' in args.pretrained_model
bacterial = 'bact' in args.pretrained_model
# force omni on for those models, but don't toggle it off if manually specified
if 'omni' in args.pretrained_model:
args.omni = True
if args.cluster and 'sklearn' not in sys.modules:
print('>>>> DBSCAN clustering requires scikit-learn.')
confirm = confirm_prompt('Install scikit-learn?')
if confirm:
install('scikit-learn')
else:
print('>>>> scikit-learn not installed. DBSCAN clustering will be automatically disabled.')
omni = check_omni(args.omni) # repeat the above check but factor it for use elsewhere
if args.omni:
print('>>>> Omnipose enabled. See https://raw.githubusercontent.com/MouseLand/cellpose/master/cellpose/omnipose/license.txt for licensing details.')
if not args.train and not args.train_size:
tic = time.time()
if not builtin_model:
cpmodel_path = args.pretrained_model
if not os.path.exists(cpmodel_path):
logger.warning('model path does not exist, using cyto model')
args.pretrained_model = 'cyto'
else:
logger.info(f'>>> running model {cpmodel_path}')
image_names = io.get_image_files(args.dir,
args.mask_filter,
imf=imf,
look_one_level_down=args.look_one_level_down)
nimg = len(image_names)
cstr0 = ['GRAY', 'RED', 'GREEN', 'BLUE']
cstr1 = ['NONE', 'RED', 'GREEN', 'BLUE']
logger.info('>>>> running cellpose on %d images using chan_to_seg %s and chan (opt) %s'%
(nimg, cstr0[channels[0]], cstr1[channels[1]]))
if args.omni:
logger.info('>>>> omni is ON, cluster is %d'%(args.omni,args.cluster))
# handle built-in model exceptions; bacterial ones get no size model
if builtin_model:
if args.mxnet:
if args.pretrained_model=='cyto2':
logger.warning('cyto2 model not available in mxnet, using cyto model')
args.pretrained_model = 'cyto'
if bacterial:
logger.warning('bacterial models not available in mxnet, using pytorch')
args.mxnet = False
if not bacterial:
model = models.Cellpose(gpu=gpu, device=device, model_type=args.pretrained_model,
torch=(not args.mxnet),omni=args.omni, net_avg=(not args.fast_mode and not args.no_net_avg))
else:
cpmodel_path = models.model_path(args.pretrained_model, 0, True)
model = models.CellposeModel(gpu=gpu, device=device,
pretrained_model=cpmodel_path,
torch=True,
nclasses=args.nclasses,omni=args.omni,
net_avg=False)
else:
if args.all_channels:
channels = None
model = models.CellposeModel(gpu=gpu, device=device,
pretrained_model=cpmodel_path,
torch=True,
nclasses=args.nclasses,omni=args.omni,
net_avg=False)
# omni changes not implemented for mxnet. Full parity for cpu/gpu in pytorch.
if args.omni and args.mxnet:
logger.info('>>>> omni only implemented in pytorch.')
confirm = confirm_prompt('Continue with omni set to false?')
if not confirm:
exit()
else:
logger.info('>>>> omni set to false.')
args.omni = False
# For now, omni version is not compatible with 3D. WIP.
if args.omni and args.do_3D:
logger.info('>>>> omni not yet compatible with 3D segmentation.')
confirm = confirm_prompt('Continue with omni set to false?')
if not confirm:
exit()
else:
logger.info('>>>> omni set to false.')
args.omni = False
# omni model needs 4 classes. Would prefer a more elegant way to automaticaly update the flow fields
# instead of users deleting them manually - a check on the number of channels, maybe, or just use
# the yes/no prompt to ask the user if they want their flow fields in the given directory to be deleted.
# would also need the look_one_level_down optionally toggled...
if args.omni and args.train:
logger.info('>>>> Training omni model. Setting nclasses to 4.')
logger.info('>>>> Make sure your flow fields are deleted and re-computed.')
args.nclasses = 4
# handle diameters
if args.diameter==0:
if builtin_model:
diameter = None
logger.info('>>>> estimating diameter for each image')
else:
logger.info('>>>> using user-specified model, no auto-diameter estimation available')
diameter = model.diam_mean
else:
diameter = args.diameter
logger.info('>>>> using diameter %0.2f for all images'%diameter)
tqdm_out = utils.TqdmToLogger(logger,level=logging.INFO)
for image_name in tqdm(image_names, file=tqdm_out):
image = io.imread(image_name)
out = model.eval(image, channels=channels, diameter=diameter,
do_3D=args.do_3D, net_avg=(not args.fast_mode and not args.no_net_avg),
augment=False,
resample=(not args.no_resample and not args.fast_mode),
flow_threshold=args.flow_threshold,
mask_threshold=args.mask_threshold,
diam_threshold=args.diam_threshold,
invert=args.invert,
batch_size=args.batch_size,
interp=(not args.no_interp),
cluster=args.cluster,
channel_axis=args.channel_axis,
z_axis=args.z_axis,
omni=args.omni,
anisotropy=args.anisotropy,
verbose=args.verbose,
model_loaded=True)
masks, flows = out[:2]
if len(out) > 3:
diams = out[-1]
else:
diams = diameter
if args.exclude_on_edges:
masks = utils.remove_edge_masks(masks)
if not args.no_npy:
io.masks_flows_to_seg(image, masks, flows, diams, image_name, channels)
if saving_something:
io.save_masks(image, masks, flows, image_name, png=args.save_png, tif=args.save_tif,
save_flows=args.save_flows,save_outlines=args.save_outlines,
save_ncolor=args.save_ncolor,dir_above=args.dir_above,savedir=args.savedir,
save_txt=args.save_txt,in_folders=args.in_folders)
logger.info('>>>> completed in %0.3f sec'%(time.time()-tic))
else:
if builtin_model:
if args.mxnet and args.pretrained_model=='cyto2':
logger.warning('cyto2 model not available in mxnet, using cyto model')
args.pretrained_model = 'cyto'
cpmodel_path = models.model_path(args.pretrained_model, 0, not args.mxnet)
if cytoplasmic:
szmean = 30.
elif nuclear:
szmean = 17.
elif bacterial:
szmean = 0. #bacterial models are not rescaled
else:
cpmodel_path = os.fspath(args.pretrained_model)
szmean = 30.
test_dir = None if len(args.test_dir)==0 else args.test_dir
output = io.load_train_test_data(args.dir, test_dir, imf, args.mask_filter, args.unet, args.look_one_level_down)
images, labels, image_names, test_images, test_labels, image_names_test = output
# training with all channels
if args.all_channels:
img = images[0]
if img.ndim==3:
nchan = min(img.shape)
elif img.ndim==2:
nchan = 1
channels = None
else:
nchan = 2
# model path
if not os.path.exists(cpmodel_path):
if not args.train:
error_message = 'ERROR: model path missing or incorrect - cannot train size model'
logger.critical(error_message)
raise ValueError(error_message)
cpmodel_path = False
logger.info('>>>> training from scratch')
if args.diameter==0:
rescale = False
logger.info('>>>> median diameter set to 0 => no rescaling during training')
else:
rescale = True
szmean = args.diameter
else:
rescale = True
args.diameter = szmean
logger.info('>>>> pretrained model %s is being used'%cpmodel_path)
args.residual_on = 1
args.style_on = 1
args.concatenation = 0
if rescale and args.train:
logger.info('>>>> during training rescaling images to fixed diameter of %0.1f pixels'%args.diameter)
# initialize model
if args.unet:
model = core.UnetModel(device=device,
pretrained_model=cpmodel_path,
diam_mean=szmean,
residual_on=args.residual_on,
style_on=args.style_on,
concatenation=args.concatenation,
nclasses=args.nclasses,
nchan=nchan)
else:
model = models.CellposeModel(device=device,
torch=(not args.mxnet),
pretrained_model=cpmodel_path,
diam_mean=szmean,
residual_on=args.residual_on,
style_on=args.style_on,
concatenation=args.concatenation,
nclasses=args.nclasses,
nchan=nchan,
omni=args.omni)
# train segmentation model
if args.train:
cpmodel_path = model.train(images, labels, train_files=image_names,
test_data=test_images, test_labels=test_labels, test_files=image_names_test,
learning_rate=args.learning_rate, channels=channels,
save_path=os.path.realpath(args.dir), save_every=args.save_every,
save_each=args.save_each,
rescale=rescale,n_epochs=args.n_epochs,
batch_size=args.batch_size,
min_train_masks=args.min_train_masks,
omni=args.omni)
model.pretrained_model = cpmodel_path
logger.info('>>>> model trained and saved to %s'%cpmodel_path)
# train size model
if args.train_size:
sz_model = models.SizeModel(cp_model=model, device=device)
sz_model.train(images, labels, test_images, test_labels, channels=channels, batch_size=args.batch_size)
if test_images is not None:
predicted_diams, diams_style = sz_model.eval(test_images, channels=channels)
if test_labels[0].ndim>2:
tlabels = [lbl[0] for lbl in test_labels]
else:
tlabels = test_labels
ccs = np.corrcoef(diams_style, np.array([utils.diameters(lbl)[0] for lbl in tlabels]))[0,1]
cc = np.corrcoef(predicted_diams, np.array([utils.diameters(lbl)[0] for lbl in tlabels]))[0,1]
logger.info('style test correlation: %0.4f; final test correlation: %0.4f'%(ccs,cc))
np.save(os.path.join(args.test_dir, '%s_predicted_diams.npy'%os.path.split(cpmodel_path)[1]),
{'predicted_diams': predicted_diams, 'diams_style': diams_style})
if __name__ == '__main__':
main()