def main():
args = parser.parse_args()
input_dir = args.input
output_dir = args.output
output_dir_A = output_dir + '/A'
output_dir_B = output_dir + '/B'
if not os.path.exists(output_dir_A):
os.makedirs(output_dir_A)
if not os.path.exists(output_dir_B):
os.makedirs(output_dir_B)
print('Reading the database...')
database = db.DBreader(input_dir, batch_size=1, labeled=False, shuffle=False)
print('Database load complete!!')
total_batch = database.total_batch
print('Generating...')
for step in range(total_batch):
print(str(step) + '/' + str(total_batch))
img = database.next_batch()
img_A = img[:, :, 0:256, :]
img_B = img[:, :, 256:, :]
img_A = img_A.reshape(256, 256, 3)
img_B = img_B.reshape(256, 256, 3)
scipy.misc.imsave(output_dir_A + '/' + str(step+1).zfill(6) + '.png', img_A)
scipy.misc.imsave(output_dir_B + '/' + str(step+1).zfill(6) + '.png', img_B)
print('finished!!')
def main2():
global_epoch = tf.Variable(0, trainable=False, name='global_step')
global_epoch_increase = tf.assign(global_epoch, tf.add(global_epoch, 1))
args = parser.parse_args()
direction = args.direction
filelist_train = args.train
result_dir = args.out_dir + '/result'
ckpt_dir = args.out_dir + '/checkpoint'
if not os.path.exists(result_dir):
os.makedirs(result_dir)
if not os.path.exists(ckpt_dir):
os.makedirs(ckpt_dir)
total_epoch = args.epochs
batch_size = args.batch_size
database = db.DBreader(filelist_train, batch_size=batch_size, labeled=False, resize=[256, 512])
sess = tf.Session()
model = Pix2Pix(sess, batch_size)
saver = tf.train.Saver(tf.global_variables())
ckpt = tf.train.get_checkpoint_state(ckpt_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
saver.restore(sess, ckpt.model_checkpoint_path)
else:
sess.run(tf.global_variables_initializer())
total_batch = database.total_batch
epoch = sess.run(global_epoch)
while True:
if epoch == total_epoch:
break
for step in range(total_batch):
img_input, img_target = split_images(database.next_batch(), direction)
img_target = normalize(img_target)
img_input = normalize(img_input)
loss_D = model.train_discrim(img_input, img_target) # Train Discriminator and get the loss value
loss_GAN, loss_L1 = model.train_gen(img_input, img_target) # Train Generator and get the loss value
if step % 100 == 0:
print('Epoch: [', epoch, '/', total_epoch, '], ', 'Step: [', step, '/', total_batch, '], D_loss: ', loss_D, ', G_loss_GAN: ', loss_GAN, ', G_loss_L1: ', loss_L1)
if step % 500 == 0:
generated_samples = denormalize(model.sample_generator(img_input, batch_size=batch_size))
img_target = denormalize(img_target)
img_input = denormalize(img_input)
img_for_vis = np.concatenate([img_input, generated_samples, img_target], axis=2)
savepath = result_dir + '/output_' + 'EP' + str(epoch).zfill(3) + "_Batch" + str(step).zfill(6) + '.jpg'
save_visualization(img_for_vis, (batch_size, 1), save_path=savepath)
epoch = sess.run(global_epoch_increase)
saver.save(sess, ckpt_dir + '/model_epoch'+str(epoch).zfill(3))
def main():
args = parser.parse_args()
filelist_test = args.test
result_dir = args.out_dir + '/result'
ckpt_dir = args.ckpt_dir
back_dir = args.out_dir + '/back'
if not os.path.exists(result_dir):
os.makedirs(result_dir)
batch_size = args.visnum
database = db.DBreader(filelist_test,
batch_size=batch_size,
labeled=False,
resize=[256, 256],
shuffle=False)
# databaseo = db.DBreader(filelist_toriginal, batch_size=batch_size, labeled=False, resize=[256, 256], suffle=False)
sess = tf.Session()
model = Pix2Pix(sess, batch_size)
saver = tf.train.Saver(tf.global_variables())
ckpt = tf.train.get_checkpoint_state(ckpt_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
saver.restore(sess, ckpt.model_checkpoint_path)
else:
sys.exit("There is no trained model")
total_batch = database.total_batch
print('Generating...')
for step in range(total_batch):
#img_input, img_target = split_images(database.next_batch(), direction)
#img_target = normalize(databaseo.next_batch())
img_input = normalize(database.next_batch())
generated_samples = denormalize(
model.sample_generator(img_input, batch_size=batch_size))
#img_target = denormalize(img_target)
img_input = denormalize(img_input)
img_for_vis = np.concatenate([img_input, generated_samples], axis=2)
savepath = result_dir + '/output_' + "_Batch" + str(step).zfill(
6) + '.png'
savepath2 = back_dir + '/output_' + "_Batch" + str(step).zfill(
6) + '(back).png'
save_visualization(img_for_vis, (batch_size, 1), save_path=savepath)
save_visualization2(generated_samples, (batch_size, 1),
save_path=savepath2)
print('finished!!')
def main():
args = parser.parse_args()
filelist_dir = args.filelist
output_dir = args.out_dir
if not os.path.exists(output_dir):
os.makedirs(output_dir)
total_epoch = args.epochs
batch_size = args.batch_size
n_noise = 100
database = db.DBreader(filelist_dir, batch_size, resize=[64, 64, 3], labeled=False)
sess = tf.Session()
model = DCGAN(sess, batch_size)
sess.run(tf.global_variables_initializer())
total_batch = database.total_batch
visualization_num = 14 * 14
noise_test = np.random.normal(size=(visualization_num, n_noise))
loss_D = 0.0
loss_G = 0.0
for epoch in range(total_epoch):
for step in range(total_batch):
batch_xs = database.next_batch() # Get the next batch
batch_xs = batch_xs * (2.0 / 255.0) - 1 # normalization
noise_g = np.random.normal(size=(batch_size, n_noise))
noise_d = np.random.normal(size=(batch_size, n_noise))
# Train Generator twice while training Discriminator once for first 200 steps
if epoch == 0 and step < 200:
adventage = 2
else:
adventage = 1
if step % adventage == 0:
loss_D = model.train_discrim(batch_xs, noise_d) # Train Discriminator and get the loss value
loss_G = model.train_gen(noise_g) # Train Generator and get the loss value
print('Epoch: [', epoch, '/', total_epoch, '], ', 'Step: [', step, '/', total_batch, '], D_loss: ',
loss_D, ', G_loss: ', loss_G)
if step == 0 or (step + 1) % 10 == 0:
generated_samples = model.sample_generator(noise_test, batch_size=visualization_num)
savepath = output_dir + '/output_' + 'EP' + str(epoch).zfill(3) + "_Batch" + str(step).zfill(6) + '.jpg'
save_visualization(generated_samples, (14, 14), save_path=savepath)
def train():
input_A_place = tf.placeholder(tf.float32,
shape=[None, image_height, image_width, 3],
name="input_A")
input_B_place = tf.placeholder(tf.float32,
shape=[None, image_height, image_width, 3],
name="input_B")
fake_pool_A_place = tf.placeholder(
tf.float32,
shape=[None, image_height, image_width, 3],
name="fake_pool_A")
fake_pool_B_place = tf.placeholder(
tf.float32,
shape=[None, image_height, image_width, 3],
name="fake_pool_B")
is_training_place = tf.placeholder(tf.bool, shape=(), name="is_training")
cycleGAN = CycleGAN(is_training_place, lambda_reconst)
Gen_AB_loss, Gen_BA_loss, Dis_A_loss, Dis_B_loss,fake_A,fake_B= \
cycleGAN.build_CycleGAN(input_A_place,input_B_place,
fake_pool_A_place,fake_pool_B_place)
gen_A2B_vars, gen_B2A_vars, dis_A_vars, dis_B_vars = cycleGAN.get_vars()
global_step = tf.Variable(-1, trainable=False, name="global_step")
global_step_increase = tf.assign(global_step, tf.add(global_step, 1))
learning_rate = (tf.where(
tf.greater_equal(global_step, start_decay_step),
tf.train.polynomial_decay(starter_learning_rate,
global_step - start_decay_step,
decay_steps,
end_learning_rate,
power=1.0), starter_learning_rate))
train_op_G = tf.train.AdamOptimizer(learning_rate, beta1=0.5, ). \
minimize(Gen_AB_loss+Gen_BA_loss, var_list=gen_A2B_vars+gen_B2A_vars)
train_op_D = tf.train.AdamOptimizer(learning_rate, beta1=0.5, ). \
minimize(Dis_A_loss+Dis_B_loss, var_list=dis_A_vars+dis_B_vars)
A2B_out, ABA_out = cycleGAN.sample_generate(input_A_place, "A2B")
A2B_output = tf.identity(A2B_out, name="A2B_output")
B2A_out, BAB_out = cycleGAN.sample_generate(input_B_place, "B2A")
B2A_output = tf.identity(B2A_out, name="B2A_output")
fake_A_pool = ImagePool(pool_size)
fake_B_pool = ImagePool(pool_size)
saver = tf.train.Saver()
with tf.Session() as sess:
sess.run(tf.global_variables_initializer())
ckpt = tf.train.get_checkpoint_state(ckpt_path)
if ckpt and ckpt.model_checkpoint_path:
ckpt_name = os.path.basename(ckpt.model_checkpoint_path)
saver.restore(sess, os.path.join(ckpt_path, ckpt_name))
_global_step = sess.run(global_step_increase)
database_A = db.DBreader(db_dir_A,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
db_for_vis_A = db.DBreader(db_dir_A,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
database_B = db.DBreader(db_dir_B,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
db_for_vis_B = db.DBreader(db_dir_B,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
while _global_step < Train_Step:
images_A = database_A.next_batch()
images_B = database_B.next_batch()
feed_dict_pool = {
input_A_place: images_A,
input_B_place: images_B,
is_training_place: True
}
fake_A_vals, fake_B_vals = sess.run([fake_A, fake_B],
feed_dict=feed_dict_pool)
feed_dict_train = {
input_A_place: images_A,
input_B_place: images_B,
is_training_place: True,
fake_pool_A_place: fake_A_pool.query(fake_A_vals),
fake_pool_B_place: fake_B_pool.query(fake_B_vals)
}
sess.run(train_op_D, feed_dict=feed_dict_train)
sess.run(train_op_G, feed_dict=feed_dict_train)
sess.run(train_op_G, feed_dict=feed_dict_train)
_Gen_AB_loss, _Gen_BA_loss,_Dis_A_loss, _Dis_B_loss\
= sess.run([Gen_AB_loss, Gen_BA_loss, Dis_A_loss, Dis_B_loss],feed_dict=feed_dict_train)
print(
"Step:{},Gen_AB_loss:{},Gen_BA_loss:{},Dis_A_loss:{},Dis_B_loss:{}"
.format(
_global_step,
_Gen_AB_loss,
_Gen_BA_loss,
_Dis_A_loss,
_Dis_B_loss,
))
if _global_step % 100 == 0:
scipy.misc.imsave(
"pool_res/fake_A_pool_{}.jpg".format(_global_step),
(fake_A_pool.query(fake_A_vals)[0] + 1) / 2 * 255.0)
scipy.misc.imsave(
"pool_res/fake_B_pool_{}.jpg".format(_global_step),
(fake_B_pool.query(fake_B_vals)[0] + 1) / 2 * 255.0)
test_images_A = db_for_vis_A.next_batch()
test_images_B = db_for_vis_B.next_batch()
#save result form A to B
_A2B_output, _ABA_out = sess.run([A2B_output, ABA_out],
feed_dict={
input_A_place:
test_images_A,
is_training_place: False
})
_A2B_output = (_A2B_output + 1) / 2 * 255.0
_ABA_out = (_ABA_out + 1) / 2 * 255.0
for ind, trg_image in enumerate(_A2B_output[:sample_num]):
scipy.misc.imsave(
result_dir + "/{}_{}_A.jpg".format(_global_step, ind),
test_images_A[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_A2B.jpg".format(_global_step, ind),
_A2B_output[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_ABA.jpg".format(_global_step, ind),
_ABA_out[ind])
# save result form B to A
_B2A_output, _BAB_out = sess.run([B2A_output, BAB_out],
feed_dict={
input_B_place:
test_images_B,
is_training_place: False
})
_B2A_output = (_B2A_output + 1) / 2 * 255.0
_BAB_out = (_BAB_out + 1) / 2 * 255.0
for ind, trg_image in enumerate(_B2A_output[:sample_num]):
scipy.misc.imsave(
result_dir + "/{}_{}_B.jpg".format(_global_step, ind),
test_images_B[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_B2A.jpg".format(_global_step, ind),
_B2A_output[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_BAB.jpg".format(_global_step, ind),
_BAB_out[ind])
if _global_step % 100000 == 0:
# 保存PB
constant_graph = graph_util.convert_variables_to_constants(
sess, sess.graph_def, ["A2B_output", "B2A_output"])
save_model_name = model_name + "-" + str(_global_step) + ".pb"
with tf.gfile.FastGFile(pb_path + save_model_name,
mode="wb") as fw:
fw.write(constant_graph.SerializeToString())
# 保存CKPT
saver.save(sess,
ckpt_path + model_name + ".ckpt",
global_step=_global_step)
print("Successfully saved model {}".format(save_model_name))
# return
_global_step = sess.run(global_step_increase)
def main():
global_epoch = tf.Variable(0, trainable=False, name='global_step')
global_epoch_increase = tf.assign(global_epoch, tf.add(global_epoch, 1))
args = parser.parse_args()
filelist_train = args.train
filelist_original = args.original
result_dir = args.out_dir + '/result'
back_dir = args.out_dir + '/back'
ckpt_dir = args.out_dir + '/checkpoint'
if not os.path.exists(result_dir):
os.makedirs(result_dir)
if not os.path.exists(ckpt_dir):
os.makedirs(ckpt_dir)
total_epoch = args.epochs
batch_size = args.batch_size
database = db.DBreader(filelist_train,
batch_size=batch_size,
labeled=False,
resize=[256, 256])
databaseo = db.DBreader(filelist_original,
batch_size=batch_size,
labeled=False,
resize=[256, 256])
sess = tf.Session()
model = Pix2Pix(sess, batch_size)
saver = tf.train.Saver(tf.global_variables())
ckpt = tf.train.get_checkpoint_state(ckpt_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
saver.restore(sess, ckpt.model_checkpoint_path)
else:
sess.run(tf.global_variables_initializer())
total_batch = database.total_batch
epoch = sess.run(global_epoch)
print(total_batch)
lossd = []
lossgan = []
lossl1 = []
while True:
templossd = []
templossgan = []
templossl1 = []
if epoch == total_epoch:
flg.plot(range(1, len(lossd) + 1), lossd, 'r', label='loss_Dis')
flg.plot(range(1,
len(lossgan) + 1),
lossgan,
'g',
label='loss_Gan')
flg.plot(range(1, len(lossl1) + 1), lossl1, 'b', label='loss_L1')
flg.legend(loc='upper right')
flg.ylabel('loss')
flg.xlabel('Number of epoch')
flg.savefig('graph99(50%).png')
break
for step in range(total_batch):
img_target = normalize(databaseo.next_batch())
img_input = normalize(database.next_batch())
loss_D = model.train_discrim(
img_input,
img_target) # Train Discriminator and get the loss value
loss_GAN, loss_L1 = model.train_gen(
img_input,
img_target) # Train Generator and get the loss value
templossd.append(loss_D)
templossgan.append(loss_GAN)
templossl1.append(loss_L1)
print('Epoch: [', epoch, '/', total_epoch, '], ', 'Step: [', step,
'/', total_batch, '], D_loss: ', loss_D, ', G_loss_GAN: ',
loss_GAN, ', G_loss_L1: ', loss_L1)
# if epoch % 5 == 0:
# generated_samples = denormalize(model.sample_generator(img_input, batch_size=batch_size))
# img_target = denormalize(img_target)
# img_input = denormalize(img_input)
# img_for_vis = np.concatenate([img_input, generated_samples, img_target], axis=2)
# savepath = result_dir + '/output_' + 'EP' + str(epoch).zfill(3) + "_Batch" + str(step).zfill(6) + '.png'
# savepath2 = back_dir + '/output_' + 'EP' + str(epoch).zfill(3) + "_Batch" + str(step).zfill(6) + '(back).png'
# save_visualization(img_for_vis, (batch_size, 1), save_path=savepath)
# save_visualization2(generated_samples, (batch_size, 1), save_path=savepath2)
lossd.append(np.mean(templossd))
lossgan.append(np.mean(templossgan))
lossl1.append(np.mean(templossl1))
epoch = sess.run(global_epoch_increase)
saver.save(sess, ckpt_dir + '/model_epoch' + str(epoch).zfill(3))
def train():
input_A_place = tf.placeholder(tf.float32,
shape=[None, image_height, image_width, 3],
name="input_A")
input_B_place = tf.placeholder(tf.float32,
shape=[None, image_height, image_width, 3],
name="input_B")
is_training_place = tf.placeholder(tf.bool, shape=(), name="is_training")
keep_prob_place = tf.placeholder_with_default(1.0,
shape=(),
name="keep_prob")
dualgan = DualGAN(is_training_place, keep_prob_place, lambda_reconst)
G_loss, D_loss = dualgan.build_DualGAN(input_A_place, input_B_place)
g_vars, d_vars = dualgan.get_vars()
global_step = tf.Variable(-1, trainable=False, name="global_step")
global_step_increase = tf.assign(global_step, tf.add(global_step, 1))
# 不要使用with tf.control_dependencies(tf.get_collection(tf.GraphKeys.UPDATE_OPS))来更新batchnorm的参数
# 因为其tf.GraphKeys.UPDATE_OPS包含了生成器和判别器所有的batchnorm的参数
train_op_D = tf.train.RMSPropOptimizer(
learning_rate, decay=decay).minimize(D_loss, var_list=d_vars)
train_op_G = tf.train.RMSPropOptimizer(
learning_rate, decay=decay).minimize(G_loss, var_list=g_vars)
A2B_out, ABA_out = dualgan.sample_generate(input_A_place, "A2B")
A2B_output = tf.identity(A2B_out, name="A2B_output")
B2A_out, BAB_out = dualgan.sample_generate(input_B_place, "B2A")
B2A_output = tf.identity(B2A_out, name="B2A_output")
saver = tf.train.Saver()
with tf.Session() as sess:
sess.run(tf.global_variables_initializer())
ckpt = tf.train.get_checkpoint_state(ckpt_path)
if ckpt and ckpt.model_checkpoint_path:
ckpt_name = os.path.basename(ckpt.model_checkpoint_path)
saver.restore(sess, os.path.join(ckpt_path, ckpt_name))
_global_step = sess.run(global_step_increase)
database_A = db.DBreader(db_dir_A,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
db_for_vis_A = db.DBreader(db_dir_A,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
database_B = db.DBreader(db_dir_B,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
db_for_vis_B = db.DBreader(db_dir_B,
batch_size=batch_size,
labeled=False,
resize=[image_height, image_width])
while _global_step < Train_Step:
images_A = database_A.next_batch()
images_B = database_B.next_batch()
feed_dict = {
input_A_place: images_A,
input_B_place: images_B,
is_training_place: True,
keep_prob_place: 0.5
}
sess.run(train_op_D, feed_dict=feed_dict)
sess.run(train_op_G, feed_dict=feed_dict)
sess.run(train_op_G, feed_dict=feed_dict)
_D_loss, _G_loss = sess.run([D_loss, G_loss], feed_dict=feed_dict)
print("Step:{},D_loss:{},G_loss:{}".format(
_global_step,
_D_loss,
_G_loss,
))
if _global_step % 200 == 0:
test_images_A = db_for_vis_A.next_batch()
test_images_B = db_for_vis_B.next_batch()
#save result form A to B
_A2B_output, _ABA_out = sess.run(
[A2B_output, ABA_out],
feed_dict={
input_A_place: test_images_A,
is_training_place: False,
keep_prob_place: 1.0
})
_A2B_output = (_A2B_output + 1) / 2 * 255.0
_ABA_out = (_ABA_out + 1) / 2 * 255.0
for ind, trg_image in enumerate(_A2B_output[:sample_num]):
scipy.misc.imsave(
result_dir + "/{}_{}_A.jpg".format(_global_step, ind),
test_images_A[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_A2B.jpg".format(_global_step, ind),
_A2B_output[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_ABA.jpg".format(_global_step, ind),
_ABA_out[ind])
# save result form B to A
_B2A_output, _BAB_out = sess.run(
[B2A_output, BAB_out],
feed_dict={
input_B_place: test_images_B,
is_training_place: False,
keep_prob_place: 1.0
})
_B2A_output = (_B2A_output + 1) / 2 * 255.0
_BAB_out = (_BAB_out + 1) / 2 * 255.0
for ind, trg_image in enumerate(_B2A_output[:sample_num]):
scipy.misc.imsave(
result_dir + "/{}_{}_B.jpg".format(_global_step, ind),
test_images_B[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_B2A.jpg".format(_global_step, ind),
_B2A_output[ind])
scipy.misc.imsave(
result_dir +
"/{}_{}_BAB.jpg".format(_global_step, ind),
_BAB_out[ind])
if _global_step % 10000 == 0:
# 保存PB
constant_graph = graph_util.convert_variables_to_constants(
sess, sess.graph_def, ["A2B_output", "B2A_output"])
save_model_name = model_name + "-" + str(_global_step) + ".pb"
with tf.gfile.FastGFile(pb_path + save_model_name,
mode="wb") as fw:
fw.write(constant_graph.SerializeToString())
# 保存CKPT
saver.save(sess,
ckpt_path + model_name + ".ckpt",
global_step=_global_step)
print("Successfully saved model {}".format(save_model_name))
# return
_global_step = sess.run(global_step_increase)
def main():
global_epoch = tf.Variable(0, trainable=False, name='global_step')
global_epoch_increase = tf.assign(global_epoch, tf.add(global_epoch, 1))
args = parser.parse_args()
db_dir_A = args.train_A
db_dir_B = args.train_B
result_dir_AtoB = args.out_dir + '/result/AtoB'
result_dir_BtoA = args.out_dir + '/result/BtoA'
ckpt_dir = args.out_dir + '/checkpoint'
if not os.path.exists(result_dir_AtoB):
os.makedirs(result_dir_AtoB)
if not os.path.exists(result_dir_BtoA):
os.makedirs(result_dir_BtoA)
if not os.path.exists(ckpt_dir):
os.makedirs(ckpt_dir)
total_epoch = args.epochs
batch_size = args.batch_size
vis_num = 4
database_A = db.DBreader(db_dir_A,
batch_size=batch_size,
labeled=False,
resize=[64, 64])
db_for_vis_A = db.DBreader(db_dir_A,
batch_size=vis_num,
labeled=False,
resize=[64, 64])
database_B = db.DBreader(db_dir_B,
batch_size=batch_size,
labeled=False,
resize=[64, 64])
db_for_vis_B = db.DBreader(db_dir_B,
batch_size=vis_num,
labeled=False,
resize=[64, 64])
sess = tf.Session()
model = Discogan(sess, batch_size)
saver = tf.train.Saver(tf.global_variables())
ckpt = tf.train.get_checkpoint_state(ckpt_dir)
if ckpt and tf.train.checkpoint_exists(ckpt.model_checkpoint_path):
saver.restore(sess, ckpt.model_checkpoint_path)
else:
sess.run(tf.global_variables_initializer())
total_batch_A = database_A.total_batch
total_batch_B = database_B.total_batch
if total_batch_A > total_batch_B:
total_batch = total_batch_B
else:
total_batch = total_batch_A
epoch = sess.run(global_epoch)
while True:
if epoch == total_epoch:
break
for step in range(total_batch):
input_A = normalize(database_A.next_batch())
input_B = normalize(database_B.next_batch())
if step % 2 == 0:
loss_D = model.train_discrim(
input_A, input_B, epoch * total_batch +
step) # Train Discriminator and get the loss value
loss_G = model.train_gen(
input_A, input_B, epoch * total_batch +
step) # Train Generator and get the loss value
if step % 100 == 0:
print('Epoch: [', epoch, '/', total_epoch, '], ', 'Step: [',
step, '/', total_batch, '], D_loss: ', loss_D,
', G_loss: ', loss_G)
if step % 500 == 0:
for_vis_A = normalize(db_for_vis_A.next_batch())
for_vis_B = normalize(db_for_vis_B.next_batch())
generated_samples_AB = denormalize(
model.sample_generate(for_vis_A, 'AB', batch_size=4))
generated_samples_ABA = denormalize(
model.sample_generate(for_vis_A, 'ABA', batch_size=4))
generated_samples_BA = denormalize(
model.sample_generate(for_vis_B, 'BA', batch_size=4))
generated_samples_BAB = denormalize(
model.sample_generate(for_vis_B, 'BAB', batch_size=4))
img_for_vis_AB = np.concatenate([
denormalize(for_vis_A), generated_samples_AB,
generated_samples_ABA
],
axis=2)
img_for_vis_BA = np.concatenate([
denormalize(for_vis_B), generated_samples_BA,
generated_samples_BAB
],
axis=2)
savepath_AB = result_dir_AtoB + '/output_' + 'EP' + str(
epoch).zfill(3) + "_Batch" + str(step).zfill(6) + '.jpg'
savepath_BA = result_dir_BtoA + '/output_' + 'EP' + str(
epoch).zfill(3) + "_Batch" + str(step).zfill(6) + '.jpg'
save_visualization(img_for_vis_AB, (vis_num, 1),
save_path=savepath_AB)
save_visualization(img_for_vis_BA, (vis_num, 1),
save_path=savepath_BA)
epoch = sess.run(global_epoch_increase)
saver.save(sess, ckpt_dir + '/model_epoch' + str(epoch).zfill(3))
def main(args):
""" Parameters """
batch_size = args.batch_size
num_frames_per_clip = args.num_frames_per_clip
dataset_shuffle = args.dataset_shuffle
num_epochs = args.num_epochs
initial_learning_rate = args.initial_learning_rate
z_dim = args.z_dim
image_crop_size = args.image_crop_size
''' Dataset Reader'''
reader=db.DBreader(batch_size=batch_size, n_frames_clip=num_frames_per_clip,
resize=[image_crop_size, image_crop_size], shuffle=dataset_shuffle)
''' Build Graph'''
# input placeholder
x = tf.placeholder(tf.float32,
shape=[batch_size, num_frames_per_clip, IMAGE_CROP_SIZE, IMAGE_CROP_SIZE, 1])
z_sample = tf.placeholder(tf.float32,
shape=[batch_size, 1, image_crop_size//4, image_crop_size//4, z_dim])
''' Network Architecture'''
model = AAE()
y, z, neg_marginal_likelihood, D_loss, G_loss = model.adversarial_autoencoder(x, z_sample)
''' Optimization '''
t_vars = tf.trainable_variables()
d_vars = [var for var in t_vars if "Discriminator" in var.name]
g_vars = [var for var in t_vars if "Encoder" in var.name]
ae_vars = [var for var in t_vars if "Encoder" or "Decoder" in var.name]
train_op_ae = tf.train.AdamOptimizer(initial_learning_rate).minimize(neg_marginal_likelihood, var_list=ae_vars)
train_op_d = tf.train.AdamOptimizer(initial_learning_rate/5).minimize(D_loss, var_list=d_vars)
train_op_g = tf.train.AdamOptimizer(initial_learning_rate).minimize(G_loss, var_list=g_vars)
''' Training '''
total_batch = reader.n_train_clips // batch_size
with tf.Session() as sess:
sess.run(tf.global_variables_initializer())
print("Variable Initialized")
for epoch in range(num_epochs):
# Train Dataset Random Shuffling
reader.initialize(True)
for i in range(total_batch):
train_x = reader.next_batch() / 255.
# now here, generate z_sample by random noise
# z_sample.shape.as_list() --> sample's shape
train_z_sample = np.random.random(z_sample.shape.as_list())
# Reconstruction Loss
_, loss_likelihood = sess.run([train_op_ae, neg_marginal_likelihood],
feed_dict={x:train_x, z_sample:train_z_sample})
# Discriminator loss
_, d_loss = sess.run([train_op_d, D_loss],
feed_dict={x:train_x, z_sample:train_z_sample})
# Generator loss
for _ in range(2):
_, g_loss = sess.run([train_op_g, G_loss],
feed_dict={x:train_x, z_sample:train_z_sample})
tot_loss = loss_likelihood + d_loss + g_loss
print(" >> [%03d - %d/%d]: L_tot %03.2f, L_likelihood %03.2f, d_loss %03.2f, g_loss %03.2f" % (epoch, i, total_batch, tot_loss, loss_likelihood, d_loss, g_loss))
# print cost every epoch
print("epoch %03d: L_tot %03.2f, L_likelihood %03.2f, d_loss %03.2f, g_loss %03.2f" % (epoch, tot_loss, loss_likelihood, d_loss, g_loss))