This repository has been archived by the owner on Jan 17, 2022. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 42
/
P2PaLA.py
1330 lines (1278 loc) · 55.9 KB
/
P2PaLA.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#!/usr/bin/env python
from __future__ import print_function
from __future__ import division
from builtins import range
import logging
import sys
import os
import time
import shutil
import numpy as np
import cv2
import errno
import signal
# import gc
import torch
# from torchvision import utils as vutils
from torch.autograd import Variable
from torch.utils.data import DataLoader
import torch.optim as optim
from utils.optparse import Arguments as arguments
from utils import misc
from nn_models import models
from data import dataset
from data import transforms as transforms
from data import imgprocess as dp
try:
import cPickle as pickle
except:
import pickle
from evalTools import page2page_eval
loss_dic = {
"L1": torch.nn.L1Loss(reduction="mean"),
"MSE": torch.nn.MSELoss(reduction="mean"),
"smoothL1": torch.nn.SmoothL1Loss(reduction="mean"),
"NLL": torch.nn.NLLLoss(reduction="mean"),
}
def tensor2img(image_tensor, imtype=np.uint8):
# --- function just for debug, do not use on production stage
# -- @@@@@@
i_dim = image_tensor.size()
ex_dim = torch.ones(3 - i_dim[0], i_dim[1], i_dim[2])
ex_dim = ex_dim.cuda()
v_o = torch.cat((image_tensor, ex_dim), dim=0)
image_numpy = v_o.cpu().float().numpy()
image_numpy = ((np.transpose(image_numpy, (1, 2, 0))) + 1) * 127.5
return image_numpy.astype(imtype)
# def signal_handler(signal,frame):
# stop_current_job = True
def save_checkpoint(state, is_best, opts, logger, epoch, criterion=""):
"""
Save current model to checkpoints dir
"""
# --- borrowed from: https://github.com/pytorch/examples/blob/master/imagenet/main.py#L139
if is_best:
out_file = os.path.join(
opts.checkpoints, "".join(["best_under", criterion, "criterion.pth"])
)
torch.save(state, out_file)
logger.info("Best model saved to {} at epoch {}".format(out_file, str(epoch)))
else:
out_file = os.path.join(opts.checkpoints, "checkpoint.pth")
torch.save(state, out_file)
logger.info("Checkpoint saved to {} at epoch {}".format(out_file, str(epoch)))
return out_file
def check_inputs(opts, logger):
"""
check if some inputs are correct
"""
n_err = 0
# --- check if input files/folders exists
if opts.do_train:
if opts.tr_img_list == "":
if not (os.path.isdir(opts.tr_data) and os.access(opts.tr_data, os.R_OK)):
n_err = n_err + 1
logger.error(
"Folder {} does not exists or is unreadable".format(opts.tr_data)
)
else:
valid, msg = misc.check_input_folder(opts.tr_data,True)
if not valid:
n_err += n_err
logger.error(msg)
else:
if not (
os.path.isfile(opts.tr_img_list)
and os.access(opts.tr_img_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(opts.tr_img_list)
)
if not (
os.path.isfile(opts.tr_label_list)
and os.access(opts.tr_label_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(
opts.tr_label_list
)
)
if opts.do_test:
if opts.te_img_list == "":
if not (os.path.isdir(opts.te_data) and os.access(opts.te_data, os.R_OK)):
n_err = n_err + 1
logger.error(
"Folder {} does not exists or is unreadable".format(opts.te_data)
)
else:
valid, msg = misc.check_input_folder(opts.te_data,True)
if not valid:
n_err += n_err
logger.error(msg)
else:
if not (
os.path.isfile(opts.te_img_list)
and os.access(opts.te_img_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(opts.te_img_list)
)
if not (
os.path.isfile(opts.te_label_list)
and os.access(opts.te_label_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(
opts.te_label_list
)
)
if opts.do_val:
if opts.val_img_list == "":
if not (os.path.isdir(opts.val_data) and os.access(opts.val_data, os.R_OK)):
n_err = n_err + 1
logger.error(
"Folder {} does not exists or is unreadable".format(opts.val_data)
)
else:
valid, msg = misc.check_input_folder(opts.val_data,True)
if not valid:
n_err += n_err
logger.error(msg)
else:
if not (
os.path.isfile(opts.val_img_list)
and os.access(opts.val_img_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(opts.val_img_list)
)
if not (
os.path.isfile(opts.val_label_list)
and os.access(opts.val_label_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(
opts.val_label_list
)
)
if opts.do_prod:
if opts.prod_img_list == "":
if not (
os.path.isdir(opts.prod_data) and os.access(opts.prod_data, os.R_OK)
):
n_err = n_err + 1
logger.error(
"Folder {} does not exists or is unreadable".format(opts.prod_data)
)
else:
valid, msg = misc.check_input_folder(opts.prod_data,False)
if not valid:
n_err += n_err
logger.error(msg)
else:
if not (
os.path.isfile(opts.prod_img_list)
and os.access(opts.prod_img_list, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(
opts.prod_img_list
)
)
# --- if cont_train is defined prev_model must be defined as well
if opts.cont_train:
if opts.prev_model == None:
n_err = n_err + 1
logger.error("--prev_model must be defined to perform continue training.")
else:
if not (
os.path.isfile(opts.prev_model) and os.access(opts.prev_model, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(opts.prev_model)
)
if not opts.do_train:
logger.warning(
(
"Continue training is defined, but train stage is not. "
"Skipping continue..."
)
)
# --- if test,val or prod is performed, train or prev model must be defined
if opts.do_val:
if not opts.do_train:
logger.warning(
(
"Validation data runs only under train stage, but "
"no train stage is running. Skipping validation ..."
)
)
if opts.do_test or opts.do_prod:
if not (opts.do_train):
if opts.prev_model == None:
n_err = n_err + 1
logger.error(
(
"There is no model available through training or "
"previously trained model. "
"Test and Production stages cannot be performed..."
)
)
else:
if not (
os.path.isfile(opts.prev_model)
and os.access(opts.prev_model, os.R_OK)
):
n_err = n_err + 1
logger.error(
"File {} does not exists or is unreadable".format(
opts.prev_model
)
)
return n_err
def main():
"""
"""
global_start = time.time()
# --- init logger
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
ch = logging.StreamHandler()
# --- keep this logger at DEBUG level, until aguments are processed
ch.setLevel(logging.DEBUG)
formatter = logging.Formatter(
"%(asctime)s - %(module)s - %(levelname)s - %(message)s"
)
ch.setFormatter(formatter)
logger.addHandler(ch)
# --- handle Ctrl-C signal
# signal.signal(signal.SIGINT,signal_handler)
# --- Get Input Arguments
in_args = arguments(logger)
opts = in_args.parse()
if check_inputs(opts, logger):
logger.critical("Execution aborted due input errors...")
exit(1)
# create file handler which logs even debug messages
fh = logging.FileHandler(opts.log_file, mode="a")
fh.setLevel(logging.DEBUG)
fh.setFormatter(formatter)
logger.addHandler(fh)
# --- restore ch logger to INFO
ch.setLevel(logging.INFO)
logger.debug(in_args)
# --- set device
device = torch.device("cuda" if opts.use_gpu else "cpu")
# --- Init torch random
# --- This two are suposed to be merged in the future, for now keep boot
torch.manual_seed(opts.seed)
# --- Init model variable
nnG = None
bestState = None
prior = None
torch.set_default_tensor_type("torch.FloatTensor")
# --- configure TensorBoard display
opts.img_size = np.array(opts.img_size, dtype=np.int)
# --------------------------------------------------------------------------
# ----- TRAIN STEP
# --------------------------------------------------------------------------
if opts.do_train:
train_start = time.time()
logger.info("Working on training stage...")
# --- display is used only on training step
if not opts.no_display:
import socket
from datetime import datetime
try:
from tensorboardX import SummaryWriter
if opts.use_global_log:
run_dir = opts.use_global_log
else:
run_dir = os.path.join(opts.work_dir, "runs")
log_dir = os.path.join(
run_dir,
"".join(
[
datetime.now().strftime("%b%d_%H-%M-%S"),
"_",
socket.gethostname(),
opts.log_comment,
]
),
)
writer = SummaryWriter(log_dir=log_dir)
logger.info("TensorBoard log will be stored at {}".format(log_dir))
logger.info("run: tensorboard --logdir {}".format(run_dir))
except:
logger.warning(
"tensorboardX is not installed, display logger set to OFF."
)
opts.no_display = True
# --- Build transforms
transform = transforms.build_transforms(opts, train=True)
# --- Get Train Data
if opts.tr_img_list == "":
logger.info("Preprocessing data from {}".format(opts.tr_data))
tr_data = dp.htrDataProcess(
opts.tr_data,
os.path.join(opts.work_dir, "data", "train"),
opts,
logger=logger,
)
tr_data.pre_process()
opts.tr_img_list = tr_data.img_list
opts.tr_label_list = tr_data.label_list
else:
logger.info(
"Reading data from pre-processed input {}".format(opts.tr_img_list)
)
tr_data = dp.htrDataProcess(
opts.tr_data,
os.path.join(opts.work_dir, "data", "train"),
opts,
logger=logger,
)
tr_data.set_img_list(opts.tr_img_list)
tr_data.set_label_list(opts.tr_label_list)
train_data = dataset.htrDataset(
img_lst=opts.tr_img_list,
label_lst=opts.tr_label_list,
transform=transform,
opts=opts,
)
if opts.do_prior:
# --- Save prior matrix along with model
fh = open(os.path.join(opts.checkpoints, "prior.pth"), "wb")
pickle.dump(train_data.prior, fh, -1)
fh.close()
train_dataloader = DataLoader(
train_data,
batch_size=opts.batch_size,
shuffle=opts.shuffle_data,
num_workers=opts.num_workers,
pin_memory=opts.pin_memory,
)
# --- Get Val data, if needed
if opts.do_val:
if opts.val_img_list == "":
logger.info("Preprocessing data from {}".format(opts.val_data))
va_data = dp.htrDataProcess(
opts.val_data,
os.path.join(opts.work_dir, "data", "val/"),
opts,
logger=logger,
)
va_data.pre_process()
opts.val_img_list = va_data.img_list
opts.val_label_list = va_data.label_list
val_transform = transforms.build_transforms(opts, train=False)
val_data = dataset.htrDataset(
img_lst=opts.val_img_list,
label_lst=opts.val_label_list,
transform=val_transform,
opts=opts,
)
val_dataloader = DataLoader(
val_data,
batch_size=opts.batch_size,
shuffle=False,
num_workers=opts.num_workers,
pin_memory=opts.pin_memory,
)
# --- Build Models
nnG = models.buildUnet(
opts.input_channels,
opts.output_channels,
ngf=opts.cnn_ngf,
net_type=opts.net_out_type,
out_mode=opts.out_mode,
).to(device)
# --- TODO: create a funtion @ models to define loss function
# --- TODO: create a funtion @ models to define loss function
if opts.do_class:
lossG = loss_dic["NLL"].to(device)
opts.g_loss = "NLL"
else:
lossG = loss_dic[opts.g_loss].to(device)
# --- TODO: implement other initializadion methods
optimizerG = optim.Adam(
nnG.parameters(), lr=opts.adam_lr, betas=(opts.adam_beta1, opts.adam_beta2)
)
if opts.cont_train:
logger.info("Resumming training from model {}".format(opts.prev_model))
if opts.use_gpu:
checkpoint = torch.load(opts.prev_model)
nnG.load_state_dict(checkpoint["nnG_state"])
else:
checkpoint = torch.load(
opts.prev_model, map_location=lambda storage, loc: storage
)
nnG.load_state_dict(checkpoint["nnG_state"])
optimizerG.load_state_dict(checkpoint["nnG_optimizer_state"])
if not opts.g_loss == checkpoint["g_loss"]:
logger.warning(
(
"Previous Model loss function differs from "
"current loss funtion {} != {}"
).format(opts.g_loss, checkpoint["g_loss"])
)
logger.warning(
"Using {} loss funtion to resume training...".format(opts.g_loss)
)
else:
nnG.apply(models.weights_init_normal)
logger.debug("GEN Network:\n{}".format(nnG))
logger.debug("GEN Network, number of parameters: {}".format(nnG.num_params))
if opts.use_gan:
if opts.net_out_type == "C":
if opts.out_mode == "LR":
d_out_ch = 2
else:
d_out_ch = 1
elif opts.net_out_type == "R":
d_out_ch = opts.output_channels
else:
pass
nnD = models.buildDNet(
opts.input_channels,
d_out_ch,
ngf=opts.cnn_ngf,
n_layers=opts.gan_layers,
).to(device)
lossD = torch.nn.BCELoss(reduction="mean").to(device)
optimizerD = optim.Adam(
nnD.parameters(),
lr=opts.adam_lr,
betas=(opts.adam_beta1, opts.adam_beta2),
)
if opts.cont_train:
if "nnD_state" in checkpoint:
nnD.load_state_dict(checkpoint["nnD_state"])
optimizerD.load_state_dict(checkpoint["nnD_optimizer_state"])
else:
logger.warning("Previous model did not use GAN, but current does.")
logger.warning("Using new GAN model from scratch.")
else:
nnD.apply(models.weights_init_normal)
logger.debug("DIS Network:\n{}".format(nnD))
logger.debug("DIS Network, number of parameters: {}".format(nnD.num_params))
# --- Do the actual train
# --- TODO: compute statistical boostrap to define if a model is
# --- statistically better than previous
best_val = np.inf
best_tr = np.inf
best_model = ""
best_epoch = 0
if opts.net_out_type == "C" and opts.fix_class_imbalance:
if opts.out_mode == "LR":
l_w = (
torch.from_numpy(train_data.w[0]).type(torch.FloatTensor).to(device)
)
r_w = (
torch.from_numpy(train_data.w[1]).type(torch.FloatTensor).to(device)
)
class_weight = [l_w, r_w]
logger.debug("class weight: {}".format(train_data.w))
else:
lossG.weight = (
torch.from_numpy(train_data.w).type(torch.FloatTensor).to(device)
)
logger.debug("class weight: {}".format(train_data.w))
for epoch in range(opts.epochs):
epoch_start = time.time()
epoch_lossG = 0
epoch_lossGAN = 0
epoch_lossR = 0
epoch_lossD = 0
if opts.do_off:
nnG.apply(models.on_dropout)
for batch, sample in enumerate(train_dataloader):
# --- Reset Grads
# nnG.apply(models.zero_bias)
optimizerG.zero_grad()
x = sample["image"].to(device)
y_gt = sample["label"].to(device)
y_gen = nnG(x)
if opts.out_mode == "LR" and opts.net_out_type == "C":
if (y_gen[0] != y_gen[0]).any() or (y_gen[1] != y_gen[1]).any():
logger.error("NaN values found in hypotesis")
logger.error("Inputs: {}".format(sample["id"]))
raise RuntimeError
y_l, y_r = torch.split(y_gt, 1, dim=1)
if opts.fix_class_imbalance:
lossG.weight = class_weight[0]
g_loss = lossG(y_gen[0], torch.squeeze(y_l, dim=1))
lossG.weight = class_weight[1]
g_loss += lossG(y_gen[1], torch.squeeze(y_r, dim=1))
else:
g_loss = lossG(y_gen[0], torch.squeeze(y_l, dim=1)) + lossG(
y_gen[1], torch.squeeze(y_r, dim=1)
)
# g_loss = lossG(y_gen[0],torch.squeeze(y_l)) + lossG(y_gen[1],torch.squeeze(y_r))
else:
if (y_gen != y_gen).any():
logger.error("NaN values found in hypotesis")
logger.error("Inputs: {}".format(sample["id"]))
raise RuntimeError
g_loss = lossG(y_gen, y_gt)
# --- reduce is not implemented, average is implemented in loss
# --- function itself
# g_loss = g_loss * (1/y_gen.data[0].numel())
if opts.use_gan:
# nnD.apply(models.zero_bias)
optimizerD.zero_grad()
if opts.use_gpu:
y_gt = y_gt.type(torch.cuda.FloatTensor)
else:
y_gt = y_gt.type(torch.FloatTensor)
if opts.net_out_type == "C":
if opts.out_mode == "LR":
real_D = torch.cat([x, y_gt], 1)
# real_D = torch.cat([x,y_gt_D],1)
y_dis_real = nnD(real_D)
_, arg_l = torch.max(y_gen[0], dim=1, keepdim=True)
_, arg_r = torch.max(y_gen[1], dim=1, keepdim=True)
y_fake = torch.cat([arg_l, arg_r], 1)
if opts.use_gpu:
y_fake = y_fake.type(torch.cuda.FloatTensor)
else:
y_fake = y_fake.type(torch.FloatTensor)
fake_D = torch.cat([x, y_fake], 1).detach()
elif opts.out_mode == "L" or opts.out_mode == "R":
real_D = torch.cat([x, torch.unsqueeze(y_gt, 1)], 1)
y_dis_real = nnD(real_D)
_, arg_y = torch.max(y_gen, dim=1)
if opts.use_gpu:
arg_y = arg_y.type(torch.cuda.FloatTensor)
else:
arg_y = arg_y.type(torch.FloatTensor)
fake_D = torch.cat(
[x, torch.unsqueeze(arg_y, 1)], 1
).detach()
else:
pass
else:
real_D = torch.cat([x, y_gt], 1)
y_dis_real = nnD(real_D)
fake_D = torch.cat([x, y_gen], 1).detach()
y_dis_fake = nnD(fake_D)
label_D_size = y_dis_real.size()
real_y = torch.FloatTensor(label_D_size).fill_(1.0).to(device)
fake_y = torch.FloatTensor(label_D_size).fill_(0.0).to(device)
d_loss_real = lossD(y_dis_real, real_y)
d_loss_fake = lossD(y_dis_fake, fake_y)
d_loss = (d_loss_real + d_loss_fake) * 0.5
epoch_lossD += d_loss.item()
d_loss.backward()
optimizerD.step()
if opts.net_out_type == "C":
if opts.out_mode == "LR":
_, arg_l = torch.max(y_gen[0], dim=1, keepdim=True)
_, arg_r = torch.max(y_gen[1], dim=1, keepdim=True)
y_fake = torch.cat([arg_l, arg_r], 1)
if opts.use_gpu:
y_fake = y_fake.type(torch.cuda.FloatTensor)
else:
y_fake = y_fake.type(torch.FloatTensor)
g_fake = torch.cat([x, y_fake], 1)
elif opts.out_mode == "L" or opts.out_mode == "R":
_, arg_y = torch.max(y_gen, dim=1, keepdim=True)
if opts.use_gpu:
arg_y = arg_y.type(torch.cuda.FloatTensor)
else:
arg_y = arg_y.type(torch.FloatTensor)
g_fake = torch.cat([x, arg_y], 1)
else:
pass
else:
g_fake = torch.cat([x, y_gen], 1)
g_y = nnD(g_fake)
shared_loss = lossD(g_y, real_y)
epoch_lossR += shared_loss.item()
gan_loss = shared_loss + (g_loss * opts.loss_lambda)
else:
gan_loss = g_loss
# epoch_lossG += g_loss.data[0] / y_gt.data.size()[0]
# epoch_lossGAN += gan_loss.data[0] / y_gt.data.size()[0]
epoch_lossG += g_loss.item() / y_gt.data.size()[0]
epoch_lossGAN += gan_loss.item() / y_gt.data.size()[0]
gan_loss.backward()
optimizerG.step()
# --- forward pass val
batch += 1 # batch on enumerate start by 0
if opts.do_val:
val_loss = 0
if opts.do_off:
nnG.apply(models.off_dropout)
with torch.no_grad():
for v_batch, v_sample in enumerate(val_dataloader):
# --- set vars to volatile, since bo backward used
v_img = v_sample["image"].to(device)
v_label = v_sample["label"].to(device)
v_y = nnG(v_img)
if opts.out_mode == "LR" and opts.net_out_type == "C":
v_l, v_r = torch.split(v_label, 1, dim=1)
lossG.weight = None
v_loss = lossG(v_y[0], torch.squeeze(v_l, dim=1)) + lossG(
v_y[1], torch.squeeze(v_r, dim=1)
)
else:
v_loss = lossG(v_y, v_label)
# v_loss = v_loss * (1/v_y.data[0].numel())
val_loss += v_loss.item() / v_label.data.size()[0]
v_batch += 1 # batch on enumerate start by 0
val_loss = val_loss / v_batch
# --- Write to Logs
if not opts.no_display:
writer.add_scalar("train/lossGAN", epoch_lossGAN / batch, epoch)
writer.add_scalar("train/lossG", epoch_lossG / batch, epoch)
writer.add_text(
"LOG",
"End of epoch {0} of {1} time Taken: {2:.3f} sec".format(
str(epoch), str(opts.epochs), time.time() - epoch_start
),
epoch,
)
if opts.use_gan:
writer.add_scalar("train/lossD", epoch_lossD / batch, epoch)
writer.add_scalar("train/D_loss_Real", epoch_lossR / batch, epoch)
if opts.do_val:
writer.add_scalar("val/lossG", val_loss, epoch)
# --- Save model under val or min loss
if opts.do_val:
if best_val >= val_loss:
best_epoch = epoch
state = {
"nnG_state": nnG.state_dict(),
"nnG_optimizer_state": optimizerG.state_dict(),
"g_loss": opts.g_loss,
}
if opts.use_gan:
state["nnD_state"] = nnD.state_dict()
state["nnD_optimizer_state"] = optimizerD.state_dict()
best_model = save_checkpoint(
state, True, opts, logger, epoch, criterion="val" + opts.g_loss
)
logger.info(
"New best model, from {} to {}".format(best_val, val_loss)
)
best_val = val_loss
else:
if best_tr >= epoch_lossG:
best_epoch = epoch
state = {
"nnG_state": nnG.state_dict(),
"nnG_optimizer_state": optimizerG.state_dict(),
"g_loss": opts.g_loss,
}
if opts.use_gan:
state["nnD_state"] = nnD.state_dict()
state["nnD_optimizer_state"] = optimizerD.state_dict()
best_model = save_checkpoint(
state, True, opts, logger, epoch, criterion=opts.g_loss
)
logger.info(
"New best model, from {} to {}".format(best_tr, epoch_lossG)
)
best_tr = epoch_lossG
# --- Save checkpoint
if epoch % opts.save_rate == 0 or epoch == opts.epochs - 1:
# --- save current model, to test load func
state = {
"nnG_state": nnG.state_dict(),
"nnG_optimizer_state": optimizerG.state_dict(),
"g_loss": opts.g_loss,
}
if opts.use_gan:
state["nnD_state"] = nnD.state_dict()
state["nnD_optimizer_state"] = optimizerD.state_dict()
save_checkpoint(state, False, opts, logger, epoch)
logger.info(
"Training stage done. total time taken: {}".format(time.time() - train_start)
)
# ---- Train is done, next is to save validation inference
if opts.do_val:
logger.info("Working on validation inference...")
res_path = os.path.join(opts.work_dir, "results", "val")
try:
os.makedirs(os.path.join(res_path, "page"))
os.makedirs(os.path.join(res_path, "mask"))
except OSError as exc:
if exc.errno == errno.EEXIST and os.path.isdir(
os.path.join(res_path, "page")
):
pass
else:
raise
if opts.save_prob_mat:
try:
os.makedirs(os.path.join(res_path, "prob_mat"))
except OSError as exc:
if exc.errno == errno.EEXIST and os.path.isdir(
res_path + "/prob_mat"
):
pass
else:
raise
# --- Set model to eval, to perform inference step
with torch.no_grad():
if best_epoch == epoch:
if opts.do_off:
nnG.apply(models.off_dropout)
else:
# --- load best model for inference
if opts.use_gpu:
checkpoint = torch.load(best_model)
nnG.load_state_dict(checkpoint["nnG_state"])
else:
checkpoint = torch.load(
best_model, map_location=lambda storage, loc: storage
)
nnG.load_state_dict(checkpoint["nnG_state"])
if opts.do_off:
nnG.apply(models.off_dropout)
# --- get prior data
if opts.do_prior and prior == None:
fh = open(os.path.join(opts.checkpoints, "prior.pth"), "rb")
prior = pickle.load(fh)
fh.close()
if opts.out_mode == "LR":
priorL = (
torch.from_numpy(np.log(prior[0]))
.type(torch.FloatTensor)
.to(device)
)
priorR = (
torch.from_numpy(np.log(prior[1]))
.type(torch.FloatTensor)
.to(device)
)
elif opts.out_mode == "L" or opts.out_mode == "R":
prior = (
torch.from_numpy(np.log(prior))
.type(torch.FloatTensor)
.to(device)
)
for v_batch, v_sample in enumerate(val_dataloader):
# --- set vars to volatile, since no backward used
v_img = v_sample["image"].to(device)
v_label = v_sample["label"].to(device)
v_ids = v_sample["id"]
v_y_gen = nnG(v_img)
if opts.save_prob_mat:
if opts.out_mode == "LR":
for idx, data in enumerate(v_y_gen[0].data):
fh = open(
res_path + "/prob_mat/" + v_ids[idx] + ".pickle", "wb"
)
if opts.use_gpu:
pickle.dump(
tuple(
(
data.cpu().float().numpy(),
v_y_gen[1][idx].data.cpu().float().numpy(),
)
),
fh,
-1,
)
else:
pickle.dump(
tuple(
(
data.float().numpy(),
v_y_gen[1][idx].data.float().numpy(),
)
),
fh,
-1,
)
fh.close()
else:
for idx, data in enumerate(v_y_gen.data):
fh = open(
res_path + "/prob_mat/" + v_ids[idx] + ".pickle", "wb"
)
if opts.use_gpu:
pickle.dump(data.cpu().float().numpy(), fh, -1)
else:
pickle.dump(data.float().numpy(), fh, -1)
fh.close
if opts.net_out_type == "C":
if opts.out_mode == "LR":
if opts.do_prior:
v_y_gen[0].data = v_y_gen[0].data + priorL.data
v_y_gen[1].data = v_y_gen[1].data + priorR.data
_, v_l = torch.max(v_y_gen[0], dim=1, keepdim=True)
_, v_r = torch.max(v_y_gen[1], dim=1, keepdim=True)
v_y_gen = torch.cat([v_l, v_r], 1)
elif opts.out_mode == "L" or opts.out_mode == "R":
if opts.do_prior:
v_y_gen.data = v_y_gen.data + prior.data
_, v_y_gen = torch.max(v_y_gen, dim=1, keepdim=True)
else:
pass
elif opts.net_out_type == "R":
pass
else:
pass
# --- save out as image for visual check
# for idx,data in enumerate(v_label.data):
# img = tensor2img(data)
# cv2.imwrite(os.path.join(res_path,
# 'mask', v_ids[idx] +'_gt.png'),img)
for idx, data in enumerate(v_y_gen.data):
# img = tensor2img(data)
# cv2.imwrite(os.path.join(res_path,
# 'mask', v_ids[idx] +'_out.png'),img)
if opts.use_gpu:
va_data.gen_page(
v_ids[idx],
data.cpu().float().numpy(),
opts.regions,
approx_alg=opts.approx_alg,
num_segments=opts.num_segments,
out_folder=res_path,
)
else:
va_data.gen_page(
v_ids[idx],
data.float().numpy(),
opts.regions,
approx_alg=opts.approx_alg,
num_segments=opts.num_segments,
out_folder=res_path,
)
# --- metrics are taked over the generated PAGE-XML files instead
# --- of teh current data and label becouse image size may be different
# --- than the processed image, then during evaluation final image
# --- must be used
va_results = page2page_eval.compute_metrics(
va_data.hyp_xml_list, va_data.gt_xml_list, opts
)
logger.info("-" * 10 + "VALIDATION RESULTS SUMMARY" + "-" * 10) # /valɪˈdeɪʃ(ə)n/
logger.info(",".join(va_results.keys()))
logger.info(",".join(str(x) for x in va_results.values()))
if not opts.no_display:
writer.close()
# --------------------------------------------------------------------------
# --- TEST INFERENCE
# --------------------------------------------------------------------------
if opts.do_test:
with torch.no_grad():
logger.info("Working on test inference...")
res_path = os.path.join(opts.work_dir, "results", "test")
try:
os.makedirs(os.path.join(res_path, "page"))
except OSError as exc:
if exc.errno == errno.EEXIST and os.path.isdir(res_path + "/page"):
pass
else:
raise
if opts.save_prob_mat:
try:
os.makedirs(os.path.join(res_path, "prob_mat"))
except OSError as exc:
if exc.errno == errno.EEXIST and os.path.isdir(
res_path + "/prob_mat"
):
pass
else:
raise
logger.info("Results will be saved to {}".format(res_path))
if nnG == None:
# --- Load Model
nnG = models.buildUnet(
opts.input_channels,
opts.output_channels,
ngf=opts.cnn_ngf,
net_type=opts.net_out_type,
out_mode=opts.out_mode,
).to(device)
logger.info("Resumming from model {}".format(opts.prev_model))
if opts.use_gpu:
checkpoint = torch.load(opts.prev_model)
nnG.load_state_dict(checkpoint["nnG_state"])
else:
checkpoint = torch.load(
opts.prev_model, map_location=lambda storage, loc: storage
)
nnG.load_state_dict(checkpoint["nnG_state"])
if opts.do_off:
nnG.apply(models.off_dropout)
logger.debug("GEN Network:\n{}".format(nnG))
logger.debug(
"GEN Network, number of parameters: {}".format(nnG.num_params)
)
else:
logger.debug("Using prevously loaded Generative module for test...")
if opts.do_off:
nnG.apply(models.off_dropout)
# --- get test data
test_start_time = time.time()
if opts.te_img_list == "":
logger.info("Preprocessing data from {}".format(opts.te_data))
te_data = dp.htrDataProcess(
opts.te_data,
os.path.join(opts.work_dir, "data", "test"),
opts,
logger=logger,
)
te_data.pre_process()
opts.te_img_list = te_data.img_list
opts.te_label_list = te_data.label_list
transform = transforms.build_transforms(opts, train=False)
test_data = dataset.htrDataset(
img_lst=opts.te_img_list,
label_lst=opts.te_label_list,
transform=transform,
opts=opts,
)
test_dataloader = DataLoader(
test_data,
batch_size=opts.batch_size,
shuffle=opts.shuffle_data,
num_workers=opts.num_workers,
pin_memory=opts.pin_memory,
)
# --- get prior data
if opts.do_prior and prior == None:
fh = open(os.path.join(opts.checkpoints, "prior.pth"), "rb")
prior = pickle.load(fh)
fh.close()
if opts.out_mode == "LR":
priorL = (
torch.from_numpy(np.log(prior[0]))
.type(torch.FloatTensor)
.to(device)
)
priorR = (
torch.from_numpy(np.log(prior[1]))
.type(torch.FloatTensor)