def get_instance_segmentation_model(bone='resnet50', attention=False):
if bone == 'mobilenet_v2':
if attention == False:
backbone = models.mobilenet_v2(pretrained=True,
att=attention).features
if attention == True:
backbone = models.mobilenet_v2(pretrained=False,
att=attention).features
backbone.out_channels = 1280
if bone == 'googlenet':
if attention == False:
backbone = models.googlenet(pretrained=True)
if attention == True:
backbone = models.googlenet(pretrained=False)
backbone.out_channels = 1024
if bone == 'densenet121':
if attention == False:
backbone = models.densenet121(pretrained=True,
att=attention).features
if attention == True:
backbone = models.densenet121(pretrained=False,
att=attention).features
backbone.out_channels = 1024
if bone == 'resnet50':
if attention == False:
backbone = models.resnet50(pretrained=True, att=attention)
if attention == True:
backbone = models.resnet50(pretrained=False, att=attention)
backbone.out_channels = 2048
if bone == 'shufflenet_v2_x1_0':
if attention == False:
backbone = models.shufflenet_v2_x1_0(pretrained=True)
if attention == True:
backbone = models.shufflenet_v2_x1_0(pretrained=False)
backbone.out_channels = 1024
if bone == 'inception_v3':
if attention == False:
backbone = models.inception_v3(
) #'InceptionOutputs' object has no attribute 'values'
if attention == True:
backbone = models.inception_v3(
) #'InceptionOutputs' object has no attribute 'values'
backbone.out_channels = 2048
if bone == 'squeezenet1_0':
if attention == False:
backbone = models.squeezenet1_0(pretrained=True).features
if attention == True:
backbone = models.squeezenet1_0(pretrained=False).features
backbone.out_channels = 512
anchor_generator = AnchorGenerator(sizes=((32, 64, 128, 256, 512), ),
aspect_ratios=((0.5, 1.0, 2.0), ))
roi_pooler = torchvision.ops.MultiScaleRoIAlign(featmap_names=[0],
output_size=7,
sampling_ratio=2)
model = MaskRCNN(backbone,
num_classes=2,
rpn_anchor_generator=anchor_generator,
box_roi_pool=roi_pooler)
return model
def visual(**kwargs):
opt.parse(kwargs)
model = models.densenet121()
model.classifier = torch.nn.Linear(1024, 2)
checkpoint = torch.load(
'/home/hdc/yfq/CAG/checkpoints/Densenet1210219_19:09:46.pth')
model_dict = model.state_dict()
state_dict = {
k: v
for k, v in checkpoint.items()
if k in model_dict and "classifier" not in k
}
model.load_state_dict(state_dict, False)
fc_weight = checkpoint['module.classifier.weight']
normalize = T.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225])
transforms0 = T.Compose([T.RandomResizedCrop(224)])
transforms1 = T.Compose([T.ToTensor(), normalize])
# data
img_path = '/home/hdc/yfq/CAG/data/visual1/3.jpg'
data = Image.open(img_path)
data0 = transforms0(data)
data1 = transforms1(data0)
data1 = data1.unsqueeze(0)
model.eval()
score, feature = model(data1)
CAMs = returnCAM(feature, fc_weight)
_, _, height, width = data1.size()
heatmap = cv2.applyColorMap(cv2.resize(CAMs[1], (width, height)),
cv2.COLORMAP_JET)
result = heatmap * 0.3 + np.array(data0) * 0.5
cv2.imwrite('/home/hdc/yfq/CAG/data/visual1/3.CAM0.bmp', result)
return 1
def Densenet121(num_classes, test=False):
model = densenet121()
if not test:
if LOCAL_PRETRAINED['densenet121'] == None:
state_dict = load_state_dict_from_url(model_urls['densenet121'],
progress=True)
else:
state_dict = state_dict = torch.load(
LOCAL_PRETRAINED['densenet121'])
from collections import OrderedDict
new_state_dict = OrderedDict()
for k, v in state_dict.items():
# print(k) #打印预训练模型的键，发现与网络定义的键有一定的差别，因而需要将键值进行对应的更改，将键值分别对应打印出来就可以看出不同，根据不同进行修改
# torchvision中的网络定义，采用了正则表达式，来更改键值，因为这里简单，没有再去构建正则表达式
# 直接利用if语句筛选不一致的键
### 修正键值的不对应
if k.split('.')[0] == 'features' and (len(k.split('.'))) > 4:
k = k.split('.')[0] + '.' + k.split('.')[1] + '.' + k.split(
'.')[2] + '.' + k.split('.')[-3] + k.split(
'.')[-2] + '.' + k.split('.')[-1]
# print(k)
else:
pass
new_state_dict[k] = v
model.load_state_dict(new_state_dict)
fc_features = model.classifier.in_features
model.classifier = nn.Linear(fc_features, num_classes)
return model
def create_model(name, num_classes):
if name == 'resnet34':
model = models.resnet34(True)
model.fc = nn.Linear(model.fc.in_features, num_classes)
nn.init.xavier_uniform(model.fc.weight)
nn.init.constant(model.fc.bias, 0)
elif name == 'resnet152':
model = models.resnet152(True)
model.fc = nn.Linear(model.fc.in_features, num_classes)
nn.init.xavier_uniform(model.fc.weight)
nn.init.constant(model.fc.bias, 0)
elif name == 'densenet121':
model = models.densenet121(True)
model.classifier = nn.Linear(model.classifier.in_features, num_classes)
nn.init.xavier_uniform(model.classifier.weight)
nn.init.constant(model.classifier.bias, 0)
elif name == 'vgg11_bn':
model = models.vgg11_bn(False, num_classes)
elif name == 'vgg19_bn':
model = models.vgg19_bn(True)
model.classifier._modules['6'] = nn.Linear(model.classifier._modules['6'].in_features, num_classes)
nn.init.xavier_uniform(model.classifier._modules['6'].weight)
nn.init.constant(model.classifier._modules['6'].bias, 0)
elif name == 'alexnet':
model = models.alexnet(True)
model.classifier._modules['6'] = nn.Linear(model.classifier._modules['6'].in_features, num_classes)
nn.init.xavier_uniform(model.classifier._modules['6'].weight)
nn.init.constant(model.classifier._modules['6'].bias, 0)
else:
model = Net(num_classes)
return model
def create_model(name, num_classes):
if name == 'resnet34':
model = models.resnet34(True)
model.fc = nn.Linear(model.fc.in_features, num_classes)
nn.init.xavier_uniform(model.fc.weight)
nn.init.constant(model.fc.bias, 0)
elif name == 'resnet50':
model = models.resnet50(True)
model.fc = nn.Linear(model.fc.in_features, num_classes)
nn.init.xavier_uniform(model.fc.weight)
nn.init.constant(model.fc.bias, 0)
elif name == 'resnet152':
model = models.resnet152(True)
model.fc = nn.Linear(model.fc.in_features, num_classes)
nn.init.xavier_uniform(model.fc.weight)
nn.init.constant(model.fc.bias, 0)
elif name == 'seresnet50':
model = models.se_resnet50()
model.last_linear = nn.Linear(model.last_linear.in_features,
num_classes,
bias=True)
elif name == 'seresnet152':
model = models.se_resnet152()
model.last_linear = nn.Linear(model.last_linear.in_features,
num_classes,
bias=True)
elif name == 'dpn131':
model = models.dpn131()
model.classifier = nn.Conv2d(2688,
num_classes,
kernel_size=1,
bias=True)
elif name == 'densenet121':
model = models.densenet121(True)
model.classifier = nn.Linear(model.classifier.in_features, num_classes)
nn.init.xavier_uniform(model.classifier.weight)
nn.init.constant(model.classifier.bias, 0)
elif name == 'vgg11_bn':
model = models.vgg11_bn(False, num_classes)
elif name == 'vgg19_bn':
model = models.vgg19_bn(True)
model.classifier._modules['6'] = nn.Linear(
model.classifier._modules['6'].in_features, num_classes)
nn.init.xavier_uniform(model.classifier._modules['6'].weight)
nn.init.constant(model.classifier._modules['6'].bias, 0)
elif name == 'alexnet':
model = models.alexnet(True)
model.classifier._modules['6'] = nn.Linear(
model.classifier._modules['6'].in_features, num_classes)
nn.init.xavier_uniform(model.classifier._modules['6'].weight)
nn.init.constant(model.classifier._modules['6'].bias, 0)
else:
model = Net(num_classes)
return model
torch.manual_seed(args.seed)
if args.cuda:
torch.cuda.manual_seed(args.seed)
kwargs = {'num_workers': 1, 'pin_memory': True} if args.cuda else {}
print('load data: ', args.dataset)
train_loader, test_loader = data_loader.getTargetDataSet(
args.dataset, args.batch_size, args.imageSize, args.dataroot)
print('Load model')
if args.model == 'resnet':
model = models.resnet18(pretrained=args.pretrained)
elif args.model == 'densenet':
model = models.densenet121(pretrained=args.pretrained)
else:
raise Exception('invalid model selected')
if args.cuda:
model.cuda()
print('Setup optimizer')
optimizer = optim.Adam(model.parameters(), lr=args.lr, weight_decay=args.wd)
decreasing_lr = list(map(int, args.decreasing_lr.split(',')))
def train(epoch):
model.train()
for batch_idx, (data, target) in enumerate(train_loader):
if args.cuda:
test = models.resnet34(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.resnet50(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.resnet101(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.resnet152(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.alexnet(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.densenet121(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.densenet169(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.densenet201(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.densenet201(num_classes=num_classes, pretrained='imagenet')
assert test(inputs).size()[1] == num_classes
print('ok')
test = models.inceptionv3(num_classes=num_classes, pretrained='imagenet')
assert test(torch.rand([2, 3, 299, 299]))[0].size()[1] == num_classes
print('ok')
def train(working_dir, grid_size, learning_rate, batch_size, num_walks,
model_type, fn):
train_props, val_props, test_props = get_props(working_dir,
dtype=np.float32)
means_stds = np.loadtxt(working_dir + "/means_stds.csv",
dtype=np.float32,
delimiter=',')
# filter out redundant qm8 properties
if train_props.shape[1] == 16:
filtered_labels = list(range(0, 8)) + list(range(12, 16))
train_props = train_props[:, filtered_labels]
val_props = val_props[:, filtered_labels]
test_props = test_props[:, filtered_labels]
means_stds = means_stds[:, filtered_labels]
if model_type == "resnet18":
model = ResNet(BasicBlock, [2, 2, 2, 2],
grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
elif model_type == "resnet34":
model = ResNet(BasicBlock, [3, 4, 6, 3],
grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
elif model_type == "resnet50":
model = ResNet(Bottleneck, [3, 4, 6, 3],
grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
elif model_type == "densenet121":
model = densenet121(grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
elif model_type == "densenet161":
model = densenet161(grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
elif model_type == "densenet169":
model = densenet169(grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
elif model_type == "densenet201":
model = densenet201(grid_size,
"regression",
feat_nums,
e_sizes,
num_classes=train_props.shape[1])
else:
print("specify a valid model")
return
model.float()
model.cuda()
loss_function_train = nn.MSELoss(reduction='none')
loss_function_val = nn.L1Loss(reduction='none')
optimizer = torch.optim.Adam(model.parameters(), lr=learning_rate)
# if model_type[0] == "r":
# batch_size = 128
# optimizer = torch.optim.SGD(model.parameters(), lr=0.1,
# momentum=0.9, weight_decay=5e-4, nesterov=True)
# elif model_type[0] == "d":
# batch_size = 512
# optimizer = torch.optim.SGD(model.parameters(), lr=0.1,
# momentum=0.9, weight_decay=1e-4, nesterov=True)
# else:
# print("specify a vlid model")
# return
stds = means_stds[1, :]
tl_list = []
vl_list = []
log_file = open(fn + "txt", "w")
log_file.write("start")
log_file.flush()
for file_num in range(num_loads):
if file_num % 20 == 0:
model_file = open("../../scratch/" + fn + ".pkl", "wb")
pickle.dump(model, model_file)
model_file.close()
log_file.write("load: " + str(file_num))
print("load: " + str(file_num))
# Get new random walks
if file_num == 0:
t = time.time()
train_loader, val_loader, test_loader = get_loaders(working_dir, \
file_num, \
grid_size, \
batch_size, \
train_props, \
val_props=val_props, \
test_props=test_props)
print("load time")
print(time.time() - t)
else:
file_num = random.randint(0, num_walks - 1)
t = time.time()
train_loader, _, _ = get_loaders(working_dir, \
file_num, \
grid_size, \
batch_size, \
train_props)
print("load time")
print(time.time() - t)
# Train on set of random walks, can do multiple epochs if desired
for epoch in range(epochs_per_load):
model.train()
t = time.time()
train_loss_list = []
train_mae_loss_list = []
for i, (walks_int, walks_float, props) in enumerate(train_loader):
walks_int = walks_int.cuda()
walks_int = walks_int.long()
walks_float = walks_float.cuda()
walks_float = walks_float.float()
props = props.cuda()
outputs = model(walks_int, walks_float)
# Individual losses for each item
loss_mae = torch.mean(loss_function_val(props, outputs), 0)
train_mae_loss_list.append(loss_mae.cpu().detach().numpy())
loss = torch.mean(loss_function_train(props, outputs), 0)
train_loss_list.append(loss.cpu().detach().numpy())
# Loss converted to single value for backpropagation
loss = torch.sum(loss)
optimizer.zero_grad()
loss.backward()
optimizer.step()
model.eval()
val_loss_list = []
with torch.no_grad():
for i, (walks_int, walks_float,
props) in enumerate(val_loader):
walks_int = walks_int.cuda()
walks_int = walks_int.long()
walks_float = walks_float.cuda()
walks_float = walks_float.float()
props = props.cuda()
outputs = model(walks_int, walks_float)
# Individual losses for each item
loss = loss_function_val(props, outputs)
val_loss_list.append(loss.cpu().detach().numpy())
# ith row of this array is the losses for each label in batch i
train_loss_arr = np.array(train_loss_list)
train_mae_arr = np.array(train_mae_loss_list)
log_file.write("training mse loss\n")
log_file.write(str(np.mean(train_loss_arr)) + "\n")
log_file.write("training mae loss\n")
log_file.write(str(np.mean(train_mae_arr)) + "\n")
print("training mse loss")
print(str(np.mean(train_loss_arr)))
print("training mae loss")
print(str(np.mean(train_mae_arr)))
val_loss_arr = np.concatenate(val_loss_list, 0)
val_loss = np.mean(val_loss_arr, 0)
log_file.write("val loss\n")
log_file.write(str(np.mean(val_loss_arr)) + "\n")
print("val loss")
print(str(np.mean(val_loss_arr)))
# Unnormalized loss is for comparison to papers
tnl = np.mean(train_mae_arr, 0)
log_file.write("train normalized losses\n")
log_file.write(" ".join(list(map(str, tnl))) + "\n")
print("train normalized losses")
print(" ".join(list(map(str, tnl))))
log_file.write("val normalized losses\n")
log_file.write(" ".join(list(map(str, val_loss))) + "\n")
print("val normalized losses")
print(" ".join(list(map(str, val_loss))))
tunl = stds * tnl
log_file.write("train unnormalized losses\n")
log_file.write(" ".join(list(map(str, tunl))) + "\n")
print("train unnormalized losses")
print(" ".join(list(map(str, tunl))))
vunl = stds * val_loss
log_file.write("val unnormalized losses\n")
log_file.write(" ".join(list(map(str, vunl))) + "\n")
log_file.write("\n")
print("val unnormalized losses")
print(" ".join(list(map(str, vunl))))
print("\n")
print("time")
print(time.time() - t)
file_num += 1
log_file.flush()
log_file.close()
return model
csv = pd.read_csv(labelPath)
level = Series.as_matrix(csv['level'])
files = Series.as_matrix(csv['image'])
return dict(zip(files, level))
def GetPreprocess():
return transforms.Compose([
transforms.Resize((width, height), interpolation=2),
transforms.ToTensor(),
])
if __name__ == "__main__":
import sys
model = densenet121(pretrained=False)
# fc_features = model.fc.in_features 138448
model.classifier = nn.Linear(model.classifier.in_features, 2, bias=True)
if torch.cuda.is_available():
model.cuda()
checkpointpath = '../checkpoint/'
if os.path.isfile(os.path.join(checkpointpath, resume)):
print("loading checkpoint '{}'".format(resume))
checkpoint = torch.load(os.path.join(checkpointpath, resume))
val_acc = checkpoint['acc']
print('model accuracy is ', val_acc)
model.load_state_dict(checkpoint['state_dict'])
else:
print("no checkpoint found at '{}'".format(os.path.join(checkpointpath, resume)))
args = parser.parse_args()
print(args)
args.cuda = not args.no_cuda and torch.cuda.is_available()
print("Random Seed: ", args.seed)
torch.manual_seed(args.seed)
if args.cuda:
torch.cuda.manual_seed(args.seed)
kwargs = {'num_workers': 1, 'pin_memory': True} if args.cuda else {}
print('Load model')
if args.model == 'resnet':
model = models.resnet18(num_classes=args.num_classes)
elif args.model == 'densenet':
model = models.densenet121(num_classes=args.num_classes)
else:
raise Exception('invalid model selected')
model.load_state_dict(torch.load(args.pre_trained_net))
print('load target data: ',args.dataset)
_, test_loader = data_loader.getTargetDataSet(args.dataset, args.batch_size, args.imageSize, args.dataroot)
print('load non target data: ',args.out_dataset)
nt_test_loader = data_loader.getNonTargetDataSet(args.out_dataset, args.batch_size, args.imageSize, args.dataroot)
if args.cuda:
model.cuda()
def generate_target():
model.eval()
def main():
# set the path to pre-trained model and output
args.outf = args.outf + args.net_type + '_' + args.dataset + '/'
if os.path.isdir(args.outf) == False:
os.mkdir(args.outf)
torch.cuda.manual_seed(0)
torch.cuda.set_device(args.gpu)
out_dist_list = [
'skin_cli', 'skin_derm', 'corrupted', 'corrupted_70', 'imgnet', 'nct',
'final_test'
]
# load networks
if args.net_type == 'densenet_121':
model = densenet_121.Net(models.densenet121(pretrained=False), 8)
ckpt = torch.load("../checkpoints/densenet-121/checkpoint.pth")
model.load_state_dict(ckpt['model_state_dict'])
model.eval()
model.cuda()
elif args.net_type == 'mobilenet':
model = mobilenet.Net(models.mobilenet_v2(pretrained=False), 8)
ckpt = torch.load("../checkpoints/mobilenet/checkpoint.pth")
model.load_state_dict(ckpt['model_state_dict'])
model.eval()
model.cuda()
print("Done!")
elif args.net_type == 'resnet_50':
model = resnet_50.Net(models.resnet50(pretrained=False), 8)
ckpt = torch.load("../checkpoints/resnet-50/checkpoint.pth")
model.load_state_dict(ckpt['model_state_dict'])
model.eval()
model.cuda()
print("Done!")
elif args.net_type == 'vgg_16':
model = vgg_16.Net(models.vgg16_bn(pretrained=False), 8)
ckpt = torch.load("../checkpoints/vgg-16/checkpoint.pth")
model.load_state_dict(ckpt['model_state_dict'])
model.eval()
model.cuda()
print("Done!")
else:
raise Exception(f"There is no net_type={args.net_type} available.")
in_transform = transforms.Compose([
transforms.ToTensor(),
transforms.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225])
])
print('load model: ' + args.net_type)
# load dataset
print('load target data: ', args.dataset)
train_loader, test_loader = data_loader.getTargetDataSet(
args.dataset, args.batch_size, in_transform, args.dataroot)
# set information about feature extaction
model.eval()
temp_x = torch.rand(2, 3, 224, 224).cuda()
temp_x = Variable(temp_x)
temp_list = model.feature_list(temp_x)[1]
num_output = len(temp_list)
feature_list = np.empty(num_output)
count = 0
for out in temp_list:
feature_list[count] = out.size(1)
count += 1
print('get sample mean and covariance')
sample_mean, precision = lib_generation.sample_estimator(
model, args.num_classes, feature_list, train_loader)
print('get Mahalanobis scores')
m_list = [0.0, 0.01, 0.005, 0.002, 0.0014, 0.001, 0.0005]
for magnitude in m_list:
print('Noise: ' + str(magnitude))
for i in range(num_output):
M_in = lib_generation.get_Mahalanobis_score(model, test_loader, args.num_classes, args.outf, \
True, args.net_type, sample_mean, precision, i, magnitude)
M_in = np.asarray(M_in, dtype=np.float32)
if i == 0:
Mahalanobis_in = M_in.reshape((M_in.shape[0], -1))
else:
Mahalanobis_in = np.concatenate(
(Mahalanobis_in, M_in.reshape((M_in.shape[0], -1))),
axis=1)
for out_dist in out_dist_list:
out_test_loader = data_loader.getNonTargetDataSet(
out_dist, args.batch_size, in_transform, args.dataroot)
print('Out-distribution: ' + out_dist)
for i in range(num_output):
M_out = lib_generation.get_Mahalanobis_score(model, out_test_loader, args.num_classes, args.outf, \
False, args.net_type, sample_mean, precision, i, magnitude)
M_out = np.asarray(M_out, dtype=np.float32)
if i == 0:
Mahalanobis_out = M_out.reshape((M_out.shape[0], -1))
else:
Mahalanobis_out = np.concatenate(
(Mahalanobis_out, M_out.reshape((M_out.shape[0], -1))),
axis=1)
Mahalanobis_in = np.asarray(Mahalanobis_in, dtype=np.float32)
Mahalanobis_out = np.asarray(Mahalanobis_out, dtype=np.float32)
Mahalanobis_data, Mahalanobis_labels = lib_generation.merge_and_generate_labels(
Mahalanobis_out, Mahalanobis_in)
file_name = os.path.join(
args.outf, 'Mahalanobis_%s_%s_%s.npy' %
(str(magnitude), args.dataset, out_dist))
Mahalanobis_data = np.concatenate(
(Mahalanobis_data, Mahalanobis_labels), axis=1)
np.save(file_name, Mahalanobis_data)
"""
Simple Flask server to return predictions from trained densenet model
"""
from flask import Flask, request, redirect, flash
import torch
from torchvision.transforms.functional import to_tensor
from PIL import Image
from models import densenet121
app = Flask(__name__)
cp = torch.load('models/cv/checkpoint/best_model.pth.tar')
net = densenet121()
net.load_state_dict(cp['net'])
net.eval()
def classify_image(x):
"""
:param x: image
:return: class prediction from densenet model
"""
outputs = net(x)
_, predicted = outputs.max(1)
return predicted
@app.route('/predict', methods=['POST'])
def predict():
"""