def torch_resume(snapshot_path, trainer):
"""Function to resume from snapshot for pytorch
:param str snapshot_path: snapshot file path
:param instance trainer: chainer trainer instance
"""
# load snapshot
snapshot_dict = torch.load(snapshot_path, map_location=lambda storage, loc: storage)
# restore trainer states
d = NpzDeserializer(snapshot_dict['trainer'])
d.load(trainer)
# restore model states
if hasattr(trainer.updater.model, "model"):
# (for TTS model)
if hasattr(trainer.updater.model.model, "module"):
trainer.updater.model.model.module.load_state_dict(snapshot_dict['model'])
else:
trainer.updater.model.model.load_state_dict(snapshot_dict['model'])
else:
# (for ASR model)
if hasattr(trainer.updater.model, "module"):
trainer.updater.model.module.load_state_dict(snapshot_dict['model'])
else:
trainer.updater.model.load_state_dict(snapshot_dict['model'])
# retore optimizer states
trainer.updater.get_optimizer('main').load_state_dict(snapshot_dict['optimizer'])
# delete opened snapshot
del snapshot_dict
def torch_resume(snapshot_path, trainer):
"""Resume from snapshot for pytorch.
Args:
snapshot_path (str): Snapshot file path.
trainer (chainer.training.Trainer): Chainer's trainer instance.
"""
# load snapshot
snapshot_dict = torch.load(snapshot_path, map_location=lambda storage, loc: storage)
# restore trainer states
d = NpzDeserializer(snapshot_dict['trainer'])
d.load(trainer)
print('| resumed best value loss = {}'.format(snapshot_dict['trainer']['extension_triggers/snapshot_object/best_value']))
# restore model states
if hasattr(trainer.updater.model, "model"):
# (for TTS model)
if hasattr(trainer.updater.model.model, "module"):
trainer.updater.model.model.module.load_state_dict(snapshot_dict['model'])
else:
trainer.updater.model.model.load_state_dict(snapshot_dict['model'])
else:
# (for ASR model)
if hasattr(trainer.updater.model, "module"):
trainer.updater.model.module.load_state_dict(snapshot_dict['model'])
else:
trainer.updater.model.load_state_dict(snapshot_dict['model'])
# retore optimizer states
trainer.updater.get_optimizer('main').load_state_dict(snapshot_dict['optimizer'])
# delete opened snapshot
del snapshot_dict
def torch_resume(snapshot_path,
trainer,
weight_sharing=False,
reinit_adv=False):
"""Function to resume from snapshot for pytorch
:param str snapshot_path: snapshot file path
:param instance trainer: chainer trainer instance
"""
# load snapshot
snapshot_dict = torch.load(snapshot_path,
map_location=lambda storage, loc: storage)
# restore trainer states
if not weight_sharing:
d = NpzDeserializer(snapshot_dict['trainer'])
d.load(trainer)
# restore model states
if hasattr(trainer.updater.model, "model"):
# (for TTS model)
if hasattr(trainer.updater.model.model, "module"):
trainer.updater.model.model.module.load_state_dict(
snapshot_dict['model'])
else:
trainer.updater.model.model.load_state_dict(snapshot_dict['model'])
else:
# (for ASR model)
# HACK: remove this later
#del snapshot_dict['model']['predictor.adv.output.bias']
#del snapshot_dict['model']['predictor.adv.output.weight']
# HACK: remove this later
# reinitialize only the adversarial branch to move it away from a
# possible local optima
if reinit_adv:
logging.info(
"Removing the learnt weights of adversarial branch ...")
for k in snapshot_dict['model'].keys():
if k.startswith('predictor.adv'):
del snapshot_dict['model'][k]
if hasattr(trainer.updater.model, "module"):
trainer.updater.model.module.load_state_dict(
snapshot_dict['model'], strict=not weight_sharing)
else:
trainer.updater.model.load_state_dict(snapshot_dict['model'],
strict=not weight_sharing)
# retore optimizer states
if not weight_sharing:
trainer.updater.get_optimizer('main').load_state_dict(
snapshot_dict['optimizer'])
# delete opened snapshot
del snapshot_dict
def torch_resume(snapshot_path, trainer):
"""Resume from snapshot for pytorch.
Args:
snapshot_path (str): Snapshot file path.
trainer (chainer.training.Trainer): Chainer's trainer instance.
"""
# load snapshot
snapshot_dict = torch.load(snapshot_path,
map_location=lambda storage, loc: storage)
# restore trainer states
d = NpzDeserializer(snapshot_dict["trainer"])
d.load(trainer)
# restore model states
if hasattr(trainer.updater.model, "model"):
# (for TTS model)
if hasattr(trainer.updater.model.model, "module"):
trainer.updater.model.model.module.load_state_dict(
snapshot_dict["model"])
else:
trainer.updater.model.model.load_state_dict(snapshot_dict["model"])
else:
# (for ASR model)
if hasattr(trainer.updater.model, "module"):
trainer.updater.model.module.load_state_dict(
snapshot_dict["model"])
else:
trainer.updater.model.load_state_dict(snapshot_dict["model"])
# retore optimizer states
trainer.updater.get_optimizer("main").load_state_dict(
snapshot_dict["optimizer"])
# delete opened snapshot
del snapshot_dict
def main():
parser = argparse.ArgumentParser(description='chainer implementation of pix2pix')
parser.add_argument('--gpu', '-g', type=int, default=-1,
help='GPU ID (negative value indicates CPU)')
parser.add_argument('--img', '-i', help='Input image')
parser.add_argument('--out', '-o', default='result_dehighlight',
help='Directory to output the result')
args = parser.parse_args()
ENC_W = os.path.join(args.out, "enc_iter_2500000.npz")
#DEC_W = "trained_model/dec_iter_176000.npz"
# to avoid GitHub 100M limit, one .npz files are divided into two zip files.
DEC_Ws = [os.path.join(args.out, "dec_iter_2500000.npz")]
#shutil.copy("net.py", args.out)
# Set up a neural network to train
enc = Encoder(in_ch=3)
dec = Decoder(out_ch=3)
chainer.serializers.load_npz(ENC_W, enc)
# to avoid GitHub 100M limit, 1 .npz file is devided into 2 files
for npzfile in DEC_Ws:
with np.load(npzfile) as f:
d = NpzDeserializer(f, strict=False)
d.load(dec)
if args.gpu >= 0:
chainer.cuda.get_device(args.gpu).use() # Make a specified GPU current
enc.to_gpu() # Copy the model to the GPU
dec.to_gpu()
inimg = loadimg(args.img)
ch, h, w = inimg.shape
# add paddings so that input array has the size of mutiples of 256.
in_ary = np.zeros((ch,math.ceil(h/256)*256, math.ceil(w/256)*256), dtype="f")
in_ary[:,0:h,0:w] = inimg
x_in = in_ary[np.newaxis,:] # to fit into the minibatch shape
print(x_in.shape)
# x_in as an input image
x_in = chainer.Variable(x_in)
if args.gpu >= 0:
x_in.to_gpu()
st = time.time()
for i in tqdm(range(10)):
z = enc(x_in)
x_out = dec(z)
ts = (time.time() - st)/10
print("mean estimation time:{:.2f}".format(ts))
with open(os.path.join(args.out, "time.txt"), "a") as f:
f.write("gpu:{}, time:{:.4f}, FPS:{:.4f}\n".format(args.gpu, ts, 1/ts))
if args.gpu >= 0:
out_ary = x_out.data.get()[0]
else:
out_ary = x_out.data[0]
#img_show = np.zeros((inimg.shape[0], inimg.shape[1], inimg.shape[2]*2))
#img_show[:,:,:inimg.shape[2]] = inimg
#img_show[:,:outimg.shape[1],inimg.shape[2]:inimg.shape[2]+outimg.shape[2]] = outimg
outimg = out_ary[:,0:h,0:w] # trim paddings
img_show = np.concatenate((inimg, outimg), axis=2)
bgrpic = to_bgr(img_show).copy()
cv2.putText(bgrpic,"input",(3,15),cv2.FONT_HERSHEY_DUPLEX, 0.5,(255,0,0))
cv2.putText(bgrpic,"output",(w+3,15),cv2.FONT_HERSHEY_DUPLEX, 0.5,(255,0,0))
cv2.imshow("result", bgrpic)
cv2.waitKey(0)
cv2.destroyAllWindows()