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exp3_train_LE.py
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exp3_train_LE.py
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from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
import numpy as np
import torch
import torchvision
import torchvision.transforms as transforms
import torch.backends.cudnn as cudnn
import lpips
import random
from torchvision.utils import save_image
from tanaka_adaptation_network import ShakePyramidNet
from torch.optim import lr_scheduler
import torch.nn as nn
import torch.optim as optim
import os
from utils.learnable_encryption import BlockScramble
LPIPS = lpips.LPIPS(net='alex')
device = 'cuda' if torch.cuda.is_available() else 'cpu'
cuda = True if torch.cuda.is_available() else False
if cuda:
LPIPS = torch.nn.DataParallel(LPIPS).cuda()
cudnn.benchmark = True
parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter)
parser.add_argument("--repeat_times", type=int, default=20)
parser.add_argument('--batch-size', type=int, default=50,
help='Batch size to use')
parser.add_argument('-c', '--gpu', default='', type=str,
help='GPU to use (leave blank for CPU only)')
parser.add_argument('--resume', '-r', action='store_true', help='resume from checkpoint')
parser.add_argument('--gamma', default=0.1, type=float)
parser.add_argument('--milestones', default='50,75', type=str)
parser.add_argument("--key_file_name", type=str, default="LE")
# For Networks
parser.add_argument("--depth", type=int, default=26)
parser.add_argument("--w_base", type=int, default=64)
parser.add_argument("--cardinary", type=int, default=4)
parser.add_argument("--save_img_directory", type=str, default="file")
parser.add_argument("--key_file_name", type=str, default="LE")
# For Training
parser.add_argument('--lr', default=0.1, type=float, help='learning rate')
parser.add_argument("--weight_decay", type=float, default=5e-4)
parser.add_argument("--nesterov", type=bool, default=True)
parser.add_argument('--e', '-e', default=150, type=int, help='learning rate')
parser.add_argument("--batch_size", type=int, default=128)
parser.add_argument("--div_bit", type=float, default=128)
parser.add_argument("--inv_ratio", type=float, default=0.5)
#rser.add_argument("--batch_size", type=int, default=128) print(self.blockSize)
args = parser.parse_args()
if not os.path.isdir(args.save_img_directory):
os.mkdir(args.save_img_directory)
transform_train = transforms.Compose([
transforms.RandomCrop(32, padding=4),
transforms.RandomHorizontalFlip(),
transforms.ToTensor(),
])
transform_test = transforms.Compose([
transforms.ToTensor(),
])
# from cifar10 import CIFAR10
trainset = torchvision.datasets.CIFAR10(root='./data_cifar10', train=True, download=True, transform=transform_train)
trainloader = torch.utils.data.DataLoader(trainset, batch_size=256, shuffle=True, num_workers=16)
testset = torchvision.datasets.CIFAR10(root='./data_cifar10', train=False, download=True, transform=transform_test)
testloader = torch.utils.data.DataLoader(testset, batch_size=256, shuffle=False, num_workers=16)
net = ShakePyramidNet(depth=110, alpha=270, label=10)
net = net.to(device)
if device == 'cuda':
print("true")
net = torch.nn.DataParallel(net).cuda()
cudnn.benchmark = True
criterion = nn.CrossEntropyLoss()
cuda = True if torch.cuda.is_available() else False
optimizer = optim.SGD(net.parameters(),
lr=args.lr,
momentum=0.9,
weight_decay=args.weight_decay,
nesterov=args.nesterov)
# Training
def train(epoch, name):
net.train()
train_loss = 0
correct = 0
total = 0
p = None
for batch_idx, (inputs, targets) in enumerate(trainloader):
imgs = inputs.numpy().astype('float32')
bs = BlockScramble(name)
imgs = np.transpose(imgs,(0 ,2 ,3 ,1 ))
imgs = bs.Scramble(imgs)
inputs = torch.from_numpy(np.transpose(imgs,(0,3,1,2)))
inputs, targets = inputs.to(device), targets.to(device)
optimizer.zero_grad()
outputs, outputs2 = net(inputs)
loss = criterion(outputs, targets) #+ 1e-1 * total_variation_norm(feature)
loss.backward()
optimizer.step()
train_loss += loss.item()
_, predicted = outputs.max(1)
total += targets.size(0)
correct += predicted.eq(targets).sum().item()
return train_loss, 100.*correct/total
def test(epoch, name):
global best_acc
net.eval()
test_loss = 0
correct = 0
total = 0
with torch.no_grad():
for batch_idx, (inputs, targets) in enumerate(testloader):
imgs = inputs.numpy().astype('float32')
bs = BlockScramble( name )
imgs = np.transpose(imgs,(0 ,2 ,3 ,1 ))
imgs = bs.Scramble(imgs)
# block scrambling
inputs = torch.from_numpy(np.transpose(imgs,(0,3,1,2)))
if batch_idx == 0:
save_image(inputs[0:16],args.save_img_directory + "/pixel_based_paper.png",nrow=4,normalize=True)
inputs, targets = inputs.to(device), targets.to(device)
optimizer.zero_grad()
outputs, _ = net(inputs)
true_loss = criterion(outputs, targets)
test_loss += true_loss.item()
_, predicted = outputs.max(1)
total += targets.size(0)
correct += predicted.eq(targets).sum().item()
# Save checkpoint.
acc = 100.*correct/total
return test_loss, 100.*correct/total
def test_lpips(epoch,name,flag):
lpips_score, total = 0, 0
paramset = torchvision.datasets.CIFAR10(root='./data_cifar10', train=True, download=True, transform=transform_test)
paramloader = torch.utils.data.DataLoader(paramset, batch_size=256, shuffle=True, num_workers=16)
for batch_idx, (inputs, targets) in enumerate(paramloader):
imgs = inputs.numpy().astype('float32')
bs = BlockScramble( name )
imgs = np.transpose(imgs,(0 ,2 ,3 ,1 ))
imgs = bs.Scramble(imgs)
# block scrambling
img = torch.from_numpy(np.transpose(imgs,(0,3,1,2)))
if batch_idx == 0 and flag:
for i in range(16):
print(LPIPS.forward(img[i].view(1,3,32,32), inputs[i].view(1,3,32,32)).item())
lpips_score += torch.sum(LPIPS.forward(img, inputs)).item()
total += targets.size(0)
return lpips_score / total
if __name__ == '__main__':
args = parser.parse_args()
score_max = 0
selected_key_file = ""
best_score = 0
for tmp in range(5):
key_file = "LE/"+str(args.key_file_name) + str(tmp)
bs = BlockScramble( [4,4,3] )
bs.save(key_file)
file_name = key_file
score = test_lpips(0,key_file, True)
if best_score < score:
best_score = score
selected_key_file = key_file
test_lpips(0, selected_key_file, True)
scheduler = lr_scheduler.MultiStepLR(optimizer,
milestones=[int(e) for e in args.milestones.split(',')])
best_acc = 0
for epoch in range(0, 100):
scheduler.step()
train_loss, train_acc = train(epoch+1, selected_key_file)
test_loss, test_acc = test(epoch+1, selected_key_file)
print(train_acc, test_acc)
if test_acc > best_acc:
best_acc = test_acc
print(best_acc)