def main(device=torch.device('cuda:0')):
# CLI arguments
parser = arg.ArgumentParser(
description='We all know what we are doing. Fighting!')
parser.add_argument("--datasize",
"-d",
default="small",
type=str,
help="data size you want to use, small, medium, total")
# Parsing
args = parser.parse_args()
####### Enter the model selection here! #####
modelSelection = input(
'Please input the type of model to be used(res50,dense121,dense169,dense161,mob_v2,mob):'
)
datasize = args.datasize
filename = "nyu_new.zip"
pathname = f"data/{filename}"
csv = "data/nyu_csv.zip"
te_loader = getTestingData(datasize,
csv,
pathname,
batch_size=config(modelSelection +
".batch_size"))
# Model
if modelSelection.lower() == 'res50':
model = Res50()
elif modelSelection.lower() == 'dense121':
model = Dense121()
elif modelSelection.lower() == 'dense161':
model = Dense161()
elif modelSelection.lower() == 'dense169':
model = Dense169()
elif modelSelection.lower() == 'mob_v2':
model = Mob_v2()
elif modelSelection.lower() == 'mob':
model = Net()
elif modelSelection.lower() == 'squeeze':
model = Squeeze()
else:
assert False, 'Wrong type of model selection string!'
model = model.to(device)
# Attempts to restore the latest checkpoint if exists
print(f"Loading {modelSelection}...")
model, start_epoch, stats = utils.restore_checkpoint(
model, utils.config(modelSelection + ".checkpoint"))
# Evaluate metrics
acc, loss = utils.evaluate_model(model, te_loader, device, test=True)
# Another implementation to valuate metrics
"""
def main(device=torch.device('cuda:0')):
# Model
modelSelection = input(
'Please input the type of model to be used(res50,dense121,dense169,dense161,mob_v2,mob):'
)
if modelSelection.lower() == 'res50':
model = Res50()
elif modelSelection.lower() == 'dense121':
model = Dense121()
elif modelSelection.lower() == 'dense161':
model = Dense161()
elif modelSelection.lower() == 'mob_v2':
model = Mob_v2()
elif modelSelection.lower() == 'dense169':
model = Dense169()
elif modelSelection.lower() == 'mob':
model = Net()
elif modelSelection.lower() == 'squeeze':
model = Squeeze()
else:
assert False, 'Wrong type of model selection string!'
model = model.to(device)
# Attempts to restore the latest checkpoint if exists
print("Loading unet...")
model, start_epoch, stats = utils.restore_checkpoint(
model, utils.config(modelSelection + ".checkpoint"))
# Get Test Images
img_list = glob("examples/" + "*.png")
# Set model to eval mode
model.eval()
model = model.to(device)
# Begin testing loop
print("Begin Test Loop ...")
for idx, img_name in enumerate(img_list):
img = load_images([img_name])
img = torch.Tensor(img).float().to(device)
print("Processing {}, Tensor Shape: {}".format(img_name, img.shape))
with torch.no_grad():
preds = model(img).squeeze(0)
output = colorize(preds.data)
output = output.transpose((1, 2, 0))
cv2.imwrite(
img_name.split(".")[0] + "_" + modelSelection + "_result.png",
output)
print("Processing {} done.".format(img_name))
def main(device, tr_loader, va_loader, te_loader, modelSelection):
"""Train CNN and show training plots."""
# Model
if modelSelection.lower() == 'res50':
model = Res50()
elif modelSelection.lower() == 'dense121':
model = Dense121()
elif modelSelection.lower() == 'dense161':
model = Dense161()
elif modelSelection.lower() == 'mobv2':
model = Mob_v2()
elif modelSelection.lower() == 'dense169':
model = Dense169()
elif modelSelection.lower() == 'mob':
model = Net()
elif modelSelection.lower() == 'squeeze':
model = Squeeze()
else:
assert False, 'Wrong type of model selection string!'
model = model.to(device)
# TODO: define loss function, and optimizer
learning_rate = utils.config(modelSelection + ".learning_rate")
criterion = DepthLoss(0.1).to(device)
optimizer = torch.optim.Adam(model.parameters(), lr=learning_rate)
number_of_epoches = 10
#
# Attempts to restore the latest checkpoint if exists
print("Loading unet...")
model, start_epoch, stats = utils.restore_checkpoint(
model, utils.config(modelSelection + ".checkpoint"))
running_va_loss = [] if 'va_loss' not in stats else stats['va_loss']
running_va_acc = [] if 'va_err' not in stats else stats['va_err']
running_tr_loss = [] if 'tr_loss' not in stats else stats['tr_loss']
running_tr_acc = [] if 'tr_err' not in stats else stats['tr_err']
tr_acc, tr_loss = utils.evaluate_model(model, tr_loader, device)
acc, loss = utils.evaluate_model(model, va_loader, device)
running_va_acc.append(acc)
running_va_loss.append(loss)
running_tr_acc.append(tr_acc)
running_tr_loss.append(tr_loss)
stats = {
'va_err': running_va_acc,
'va_loss': running_va_loss,
'tr_err': running_tr_acc,
'tr_loss': running_tr_loss,
}
# Loop over the entire dataset multiple times
# for epoch in range(start_epoch, config('cnn.num_epochs')):
epoch = start_epoch
# while curr_patience < patience:
while epoch < number_of_epoches:
# Train model
utils.train_epoch(device, tr_loader, model, criterion, optimizer)
# Save checkpoint
utils.save_checkpoint(model, epoch + 1,
utils.config(modelSelection + ".checkpoint"),
stats)
# Evaluate model
tr_acc, tr_loss = utils.evaluate_model(model, tr_loader, device)
va_acc, va_loss = utils.evaluate_model(model, va_loader, device)
running_va_acc.append(va_acc)
running_va_loss.append(va_loss)
running_tr_acc.append(tr_acc)
running_tr_loss.append(tr_loss)
epoch += 1
print("Finished Training")
utils.make_plot(running_tr_loss, running_tr_acc, running_va_loss,
running_va_acc)