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DeepFaceLab/models/Model_AMP/Model.py
iperov e52b53f87c AMP fix
2021-05-30 09:24:23 +04:00

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import multiprocessing
import operator
from functools import partial
import numpy as np
from core import mathlib
from core.interact import interact as io
from core.leras import nn
from facelib import FaceType
from models import ModelBase
from samplelib import *
from core.cv2ex import *
class AMPModel(ModelBase):
#override
def on_initialize_options(self):
device_config = nn.getCurrentDeviceConfig()
lowest_vram = 2
if len(device_config.devices) != 0:
lowest_vram = device_config.devices.get_worst_device().total_mem_gb
if lowest_vram >= 4:
suggest_batch_size = 8
else:
suggest_batch_size = 4
yn_str = {True:'y',False:'n'}
min_res = 64
max_res = 640
default_resolution = self.options['resolution'] = self.load_or_def_option('resolution', 224)
default_face_type = self.options['face_type'] = self.load_or_def_option('face_type', 'wf')
default_models_opt_on_gpu = self.options['models_opt_on_gpu'] = self.load_or_def_option('models_opt_on_gpu', True)
default_ae_dims = self.options['ae_dims'] = self.load_or_def_option('ae_dims', 256)
default_e_dims = self.options['e_dims'] = self.load_or_def_option('e_dims', 64)
default_d_dims = self.options['d_dims'] = self.options.get('d_dims', None)
default_d_mask_dims = self.options['d_mask_dims'] = self.options.get('d_mask_dims', None)
default_masked_training = self.options['masked_training'] = self.load_or_def_option('masked_training', True)
default_eyes_mouth_prio = self.options['eyes_mouth_prio'] = self.load_or_def_option('eyes_mouth_prio', True)
default_uniform_yaw = self.options['uniform_yaw'] = self.load_or_def_option('uniform_yaw', False)
lr_dropout = self.load_or_def_option('lr_dropout', 'n')
lr_dropout = {True:'y', False:'n'}.get(lr_dropout, lr_dropout) #backward comp
default_lr_dropout = self.options['lr_dropout'] = lr_dropout
default_random_warp = self.options['random_warp'] = self.load_or_def_option('random_warp', True)
default_ct_mode = self.options['ct_mode'] = self.load_or_def_option('ct_mode', 'none')
default_clipgrad = self.options['clipgrad'] = self.load_or_def_option('clipgrad', False)
ask_override = self.ask_override()
if self.is_first_run() or ask_override:
self.ask_autobackup_hour()
self.ask_write_preview_history()
self.ask_target_iter()
self.ask_random_src_flip()
self.ask_random_dst_flip()
self.ask_batch_size(suggest_batch_size)
if self.is_first_run():
resolution = io.input_int("Resolution", default_resolution, add_info="64-640", help_message="More resolution requires more VRAM and time to train. Value will be adjusted to multiple of 32 .")
resolution = np.clip ( (resolution // 32) * 32, min_res, max_res)
self.options['resolution'] = resolution
self.options['face_type'] = io.input_str ("Face type", default_face_type, ['wf','head'], help_message="whole face / head").lower()
default_d_dims = self.options['d_dims'] = self.load_or_def_option('d_dims', 64)
default_d_mask_dims = default_d_dims // 3
default_d_mask_dims += default_d_mask_dims % 2
default_d_mask_dims = self.options['d_mask_dims'] = self.load_or_def_option('d_mask_dims', default_d_mask_dims)
if self.is_first_run():
self.options['ae_dims'] = np.clip ( io.input_int("AutoEncoder dimensions", default_ae_dims, add_info="32-1024", help_message="All face information will packed to AE dims. If amount of AE dims are not enough, then for example closed eyes will not be recognized. More dims are better, but require more VRAM. You can fine-tune model size to fit your GPU." ), 32, 1024 )
e_dims = np.clip ( io.input_int("Encoder dimensions", default_e_dims, add_info="16-256", help_message="More dims help to recognize more facial features and achieve sharper result, but require more VRAM. You can fine-tune model size to fit your GPU." ), 16, 256 )
self.options['e_dims'] = e_dims + e_dims % 2
d_dims = np.clip ( io.input_int("Decoder dimensions", default_d_dims, add_info="16-256", help_message="More dims help to recognize more facial features and achieve sharper result, but require more VRAM. You can fine-tune model size to fit your GPU." ), 16, 256 )
self.options['d_dims'] = d_dims + d_dims % 2
d_mask_dims = np.clip ( io.input_int("Decoder mask dimensions", default_d_mask_dims, add_info="16-256", help_message="Typical mask dimensions = decoder dimensions / 3. If you manually cut out obstacles from the dst mask, you can increase this parameter to achieve better quality." ), 16, 256 )
self.options['d_mask_dims'] = d_mask_dims + d_mask_dims % 2
if self.is_first_run() or ask_override:
if self.options['face_type'] == 'wf' or self.options['face_type'] == 'head':
self.options['masked_training'] = io.input_bool ("Masked training", default_masked_training, help_message="This option is available only for 'whole_face' or 'head' type. Masked training clips training area to full_face mask or XSeg mask, thus network will train the faces properly.")
self.options['eyes_mouth_prio'] = io.input_bool ("Eyes and mouth priority", default_eyes_mouth_prio, help_message='Helps to fix eye problems during training like "alien eyes" and wrong eyes direction. Also makes the detail of the teeth higher.')
self.options['uniform_yaw'] = io.input_bool ("Uniform yaw distribution of samples", default_uniform_yaw, help_message='Helps to fix blurry side faces due to small amount of them in the faceset.')
default_gan_power = self.options['gan_power'] = self.load_or_def_option('gan_power', 0.0)
default_gan_patch_size = self.options['gan_patch_size'] = self.load_or_def_option('gan_patch_size', self.options['resolution'] // 8)
default_gan_dims = self.options['gan_dims'] = self.load_or_def_option('gan_dims', 16)
if self.is_first_run() or ask_override:
self.options['models_opt_on_gpu'] = io.input_bool ("Place models and optimizer on GPU", default_models_opt_on_gpu, help_message="When you train on one GPU, by default model and optimizer weights are placed on GPU to accelerate the process. You can place they on CPU to free up extra VRAM, thus set bigger dimensions.")
self.options['lr_dropout'] = io.input_str (f"Use learning rate dropout", default_lr_dropout, ['n','y','cpu'], help_message="When the face is trained enough, you can enable this option to get extra sharpness and reduce subpixel shake for less amount of iterations. Enabled it before `disable random warp` and before GAN. \nn - disabled.\ny - enabled\ncpu - enabled on CPU. This allows not to use extra VRAM, sacrificing 20% time of iteration.")
self.options['random_warp'] = io.input_bool ("Enable random warp of samples", default_random_warp, help_message="Random warp is required to generalize facial expressions of both faces. When the face is trained enough, you can disable it to get extra sharpness and reduce subpixel shake for less amount of iterations.")
self.options['gan_power'] = np.clip ( io.input_number ("GAN power", default_gan_power, add_info="0.0 .. 1.0", help_message="Forces the neural network to learn small details of the face. Enable it only when the face is trained enough with lr_dropout(on) and random_warp(off), and don't disable. The higher the value, the higher the chances of artifacts. Typical fine value is 0.1"), 0.0, 1.0 )
if self.options['gan_power'] != 0.0:
gan_patch_size = np.clip ( io.input_int("GAN patch size", default_gan_patch_size, add_info="3-640", help_message="The higher patch size, the higher the quality, the more VRAM is required. You can get sharper edges even at the lowest setting. Typical fine value is resolution / 8." ), 3, 640 )
self.options['gan_patch_size'] = gan_patch_size
gan_dims = np.clip ( io.input_int("GAN dimensions", default_gan_dims, add_info="4-64", help_message="The dimensions of the GAN network. The higher dimensions, the more VRAM is required. You can get sharper edges even at the lowest setting. Typical fine value is 16." ), 4, 64 )
self.options['gan_dims'] = gan_dims
self.options['ct_mode'] = io.input_str (f"Color transfer for src faceset", default_ct_mode, ['none','rct','lct','mkl','idt','sot'], help_message="Change color distribution of src samples close to dst samples. Try all modes to find the best.")
self.options['clipgrad'] = io.input_bool ("Enable gradient clipping", default_clipgrad, help_message="Gradient clipping reduces chance of model collapse, sacrificing speed of training.")
self.gan_model_changed = (default_gan_patch_size != self.options['gan_patch_size']) or (default_gan_dims != self.options['gan_dims'])
#override
def on_initialize(self):
device_config = nn.getCurrentDeviceConfig()
devices = device_config.devices
self.model_data_format = "NCHW"
nn.initialize(data_format=self.model_data_format)
tf = nn.tf
self.resolution = resolution = self.options['resolution']
lowest_dense_res = self.lowest_dense_res = resolution // 32
class Downscale(nn.ModelBase):
def __init__(self, in_ch, out_ch, kernel_size=5, *kwargs ):
self.in_ch = in_ch
self.out_ch = out_ch
self.kernel_size = kernel_size
super().__init__(*kwargs)
def on_build(self, *args, **kwargs ):
self.conv1 = nn.Conv2D( self.in_ch, self.out_ch, kernel_size=self.kernel_size, strides=2, padding='SAME')
def forward(self, x):
x = self.conv1(x)
x = tf.nn.leaky_relu(x, 0.1)
return x
def get_out_ch(self):
return self.out_ch
class Upscale(nn.ModelBase):
def on_build(self, in_ch, out_ch, kernel_size=3 ):
self.conv1 = nn.Conv2D( in_ch, out_ch*4, kernel_size=kernel_size, padding='SAME')
def forward(self, x):
x = self.conv1(x)
x = tf.nn.leaky_relu(x, 0.1)
x = nn.depth_to_space(x, 2)
return x
class ResidualBlock(nn.ModelBase):
def on_build(self, ch, kernel_size=3 ):
self.conv1 = nn.Conv2D( ch, ch, kernel_size=kernel_size, padding='SAME')
self.conv2 = nn.Conv2D( ch, ch, kernel_size=kernel_size, padding='SAME')
def forward(self, inp):
x = self.conv1(inp)
x = tf.nn.leaky_relu(x, 0.2)
x = self.conv2(x)
x = tf.nn.leaky_relu(inp+x, 0.2)
return x
class Encoder(nn.ModelBase):
def on_build(self, in_ch, e_ch, ae_ch):
self.down1 = Downscale(in_ch, e_ch, kernel_size=5)
self.res1 = ResidualBlock(e_ch)
self.down2 = Downscale(e_ch, e_ch*2, kernel_size=5)
self.down3 = Downscale(e_ch*2, e_ch*4, kernel_size=5)
self.down4 = Downscale(e_ch*4, e_ch*8, kernel_size=5)
self.down5 = Downscale(e_ch*8, e_ch*8, kernel_size=5)
self.res5 = ResidualBlock(e_ch*8)
self.dense1 = nn.Dense( lowest_dense_res*lowest_dense_res*e_ch*8, ae_ch )
def forward(self, inp):
x = inp
x = self.down1(x)
x = self.res1(x)
x = self.down2(x)
x = self.down3(x)
x = self.down4(x)
x = self.down5(x)
x = self.res5(x)
x = nn.flatten(x)
x = nn.pixel_norm(x, axes=-1)
x = self.dense1(x)
return x
class Inter(nn.ModelBase):
def __init__(self, ae_ch, ae_out_ch, **kwargs):
self.ae_ch, self.ae_out_ch = ae_ch, ae_out_ch
super().__init__(**kwargs)
def on_build(self):
ae_ch, ae_out_ch = self.ae_ch, self.ae_out_ch
self.dense2 = nn.Dense( ae_ch, lowest_dense_res * lowest_dense_res * ae_out_ch )
def forward(self, inp):
x = inp
x = self.dense2(x)
x = nn.reshape_4D (x, lowest_dense_res, lowest_dense_res, self.ae_out_ch)
return x
def get_out_ch(self):
return self.ae_out_ch
class Decoder(nn.ModelBase):
def on_build(self, in_ch, d_ch, d_mask_ch ):
self.upscale0 = Upscale(in_ch, d_ch*8, kernel_size=3)
self.upscale1 = Upscale(d_ch*8, d_ch*8, kernel_size=3)
self.upscale2 = Upscale(d_ch*8, d_ch*4, kernel_size=3)
self.upscale3 = Upscale(d_ch*4, d_ch*2, kernel_size=3)
self.res0 = ResidualBlock(d_ch*8, kernel_size=3)
self.res1 = ResidualBlock(d_ch*8, kernel_size=3)
self.res2 = ResidualBlock(d_ch*4, kernel_size=3)
self.res3 = ResidualBlock(d_ch*2, kernel_size=3)
self.upscalem0 = Upscale(in_ch, d_mask_ch*8, kernel_size=3)
self.upscalem1 = Upscale(d_mask_ch*8, d_mask_ch*8, kernel_size=3)
self.upscalem2 = Upscale(d_mask_ch*8, d_mask_ch*4, kernel_size=3)
self.upscalem3 = Upscale(d_mask_ch*4, d_mask_ch*2, kernel_size=3)
self.upscalem4 = Upscale(d_mask_ch*2, d_mask_ch*1, kernel_size=3)
self.out_convm = nn.Conv2D( d_mask_ch*1, 1, kernel_size=1, padding='SAME')
self.out_conv = nn.Conv2D( d_ch*2, 3, kernel_size=1, padding='SAME')
self.out_conv1 = nn.Conv2D( d_ch*2, 3, kernel_size=3, padding='SAME')
self.out_conv2 = nn.Conv2D( d_ch*2, 3, kernel_size=3, padding='SAME')
self.out_conv3 = nn.Conv2D( d_ch*2, 3, kernel_size=3, padding='SAME')
def forward(self, inp):
z = inp
x = self.upscale0(z)
x = self.res0(x)
x = self.upscale1(x)
x = self.res1(x)
x = self.upscale2(x)
x = self.res2(x)
x = self.upscale3(x)
x = self.res3(x)
x = tf.nn.sigmoid( nn.depth_to_space(tf.concat( (self.out_conv(x),
self.out_conv1(x),
self.out_conv2(x),
self.out_conv3(x)), nn.conv2d_ch_axis), 2) )
m = self.upscalem0(z)
m = self.upscalem1(m)
m = self.upscalem2(m)
m = self.upscalem3(m)
m = self.upscalem4(m)
m = tf.nn.sigmoid(self.out_convm(m))
return x, m
self.face_type = {'wf' : FaceType.WHOLE_FACE,
'head' : FaceType.HEAD}[ self.options['face_type'] ]
if 'eyes_prio' in self.options:
self.options.pop('eyes_prio')
eyes_mouth_prio = self.options['eyes_mouth_prio']
ae_dims = self.ae_dims = self.options['ae_dims']
e_dims = self.options['e_dims']
d_dims = self.options['d_dims']
d_mask_dims = self.options['d_mask_dims']
self.gan_power = gan_power = self.options['gan_power']
random_warp = self.options['random_warp']
random_src_flip = self.random_src_flip
random_dst_flip = self.random_dst_flip
masked_training = self.options['masked_training']
ct_mode = self.options['ct_mode']
if ct_mode == 'none':
ct_mode = None
models_opt_on_gpu = False if len(devices) == 0 else self.options['models_opt_on_gpu']
models_opt_device = nn.tf_default_device_name if models_opt_on_gpu and self.is_training else '/CPU:0'
optimizer_vars_on_cpu = models_opt_device=='/CPU:0'
input_ch=3
bgr_shape = self.bgr_shape = nn.get4Dshape(resolution,resolution,input_ch)
mask_shape = nn.get4Dshape(resolution,resolution,1)
self.model_filename_list = []
with tf.device ('/CPU:0'):
#Place holders on CPU
self.warped_src = tf.placeholder (nn.floatx, bgr_shape, name='warped_src')
self.warped_dst = tf.placeholder (nn.floatx, bgr_shape, name='warped_dst')
self.target_src = tf.placeholder (nn.floatx, bgr_shape, name='target_src')
self.target_dst = tf.placeholder (nn.floatx, bgr_shape, name='target_dst')
self.target_srcm = tf.placeholder (nn.floatx, mask_shape, name='target_srcm')
self.target_srcm_em = tf.placeholder (nn.floatx, mask_shape, name='target_srcm_em')
self.target_dstm = tf.placeholder (nn.floatx, mask_shape, name='target_dstm')
self.target_dstm_em = tf.placeholder (nn.floatx, mask_shape, name='target_dstm_em')
self.morph_value_t = tf.placeholder (nn.floatx, (1,), name='morph_value_t')
# Initializing model classes
with tf.device (models_opt_device):
self.encoder = Encoder(in_ch=input_ch, e_ch=e_dims, ae_ch=ae_dims, name='encoder')
self.inter_src = Inter(ae_ch=ae_dims, ae_out_ch=ae_dims, name='inter_src')
self.inter_dst = Inter(ae_ch=ae_dims, ae_out_ch=ae_dims, name='inter_dst')
self.decoder = Decoder(in_ch=ae_dims, d_ch=d_dims, d_mask_ch=d_mask_dims, name='decoder')
self.model_filename_list += [ [self.encoder, 'encoder.npy'],
[self.inter_src, 'inter_src.npy'],
[self.inter_dst , 'inter_dst.npy'],
[self.decoder , 'decoder.npy'] ]
if self.is_training:
if gan_power != 0:
self.GAN = nn.UNetPatchDiscriminator(patch_size=self.options['gan_patch_size'], in_ch=input_ch, base_ch=self.options['gan_dims'], name="GAN")
self.model_filename_list += [ [self.GAN, 'GAN.npy'] ]
# Initialize optimizers
lr=5e-5
lr_dropout = 0.3 if self.options['lr_dropout'] in ['y','cpu'] else 1.0
clipnorm = 1.0 if self.options['clipgrad'] else 0.0
self.src_dst_trainable_weights = self.encoder.get_weights() + self.inter_src.get_weights() + self.inter_dst.get_weights() + self.decoder.get_weights()
self.src_dst_opt = nn.AdaBelief(lr=lr, lr_dropout=lr_dropout, clipnorm=clipnorm, name='src_dst_opt')
self.src_dst_opt.initialize_variables (self.src_dst_trainable_weights, vars_on_cpu=optimizer_vars_on_cpu, lr_dropout_on_cpu=self.options['lr_dropout']=='cpu')
self.model_filename_list += [ (self.src_dst_opt, 'src_dst_opt.npy') ]
if gan_power != 0:
self.GAN_opt = nn.AdaBelief(lr=lr, lr_dropout=lr_dropout, clipnorm=clipnorm, name='GAN_opt')
self.GAN_opt.initialize_variables ( self.GAN.get_weights(), vars_on_cpu=optimizer_vars_on_cpu, lr_dropout_on_cpu=self.options['lr_dropout']=='cpu')#+self.D_src_x2.get_weights()
self.model_filename_list += [ (self.GAN_opt, 'GAN_opt.npy') ]
if self.is_training:
# Adjust batch size for multiple GPU
gpu_count = max(1, len(devices) )
bs_per_gpu = max(1, self.get_batch_size() // gpu_count)
self.set_batch_size( gpu_count*bs_per_gpu)
# Compute losses per GPU
gpu_pred_src_src_list = []
gpu_pred_dst_dst_list = []
gpu_pred_src_dst_list = []
gpu_pred_src_srcm_list = []
gpu_pred_dst_dstm_list = []
gpu_pred_src_dstm_list = []
gpu_src_losses = []
gpu_dst_losses = []
gpu_G_loss_gvs = []
gpu_GAN_loss_gvs = []
gpu_D_code_loss_gvs = []
gpu_D_src_dst_loss_gvs = []
for gpu_id in range(gpu_count):
with tf.device( f'/{devices[gpu_id].tf_dev_type}:{gpu_id}' if len(devices) != 0 else f'/CPU:0' ):
with tf.device(f'/CPU:0'):
# slice on CPU, otherwise all batch data will be transfered to GPU first
batch_slice = slice( gpu_id*bs_per_gpu, (gpu_id+1)*bs_per_gpu )
gpu_warped_src = self.warped_src [batch_slice,:,:,:]
gpu_warped_dst = self.warped_dst [batch_slice,:,:,:]
gpu_target_src = self.target_src [batch_slice,:,:,:]
gpu_target_dst = self.target_dst [batch_slice,:,:,:]
gpu_target_srcm = self.target_srcm[batch_slice,:,:,:]
gpu_target_srcm_em = self.target_srcm_em[batch_slice,:,:,:]
gpu_target_dstm = self.target_dstm[batch_slice,:,:,:]
gpu_target_dstm_em = self.target_dstm_em[batch_slice,:,:,:]
# process model tensors
gpu_src_code = self.encoder (gpu_warped_src)
gpu_dst_code = self.encoder (gpu_warped_dst)
gpu_src_inter_src_code = self.inter_src (gpu_src_code)
gpu_src_inter_dst_code = self.inter_dst (gpu_src_code)
gpu_dst_inter_src_code = self.inter_src (gpu_dst_code)
gpu_dst_inter_dst_code = self.inter_dst (gpu_dst_code)
inter_rnd_binomial = nn.random_binomial( [bs_per_gpu, gpu_src_inter_src_code.shape.as_list()[1], 1,1] , p=0.33)
gpu_src_code = gpu_src_inter_src_code * inter_rnd_binomial + gpu_src_inter_dst_code * (1-inter_rnd_binomial)
gpu_dst_code = gpu_dst_inter_dst_code
ae_dims_slice = tf.cast(ae_dims*self.morph_value_t[0], tf.int32)
gpu_src_dst_code = tf.concat( ( tf.slice(gpu_dst_inter_src_code, [0,0,0,0], [-1, ae_dims_slice , lowest_dense_res, lowest_dense_res]),
tf.slice(gpu_dst_inter_dst_code, [0,ae_dims_slice,0,0], [-1,ae_dims-ae_dims_slice, lowest_dense_res,lowest_dense_res]) ), 1 )
gpu_pred_src_src, gpu_pred_src_srcm = self.decoder(gpu_src_code)
gpu_pred_dst_dst, gpu_pred_dst_dstm = self.decoder(gpu_dst_code)
gpu_pred_src_dst, gpu_pred_src_dstm = self.decoder(gpu_src_dst_code)
gpu_pred_src_src_list.append(gpu_pred_src_src)
gpu_pred_dst_dst_list.append(gpu_pred_dst_dst)
gpu_pred_src_dst_list.append(gpu_pred_src_dst)
gpu_pred_src_srcm_list.append(gpu_pred_src_srcm)
gpu_pred_dst_dstm_list.append(gpu_pred_dst_dstm)
gpu_pred_src_dstm_list.append(gpu_pred_src_dstm)
gpu_target_srcm_blur = nn.gaussian_blur(gpu_target_srcm, max(1, resolution // 32) )
gpu_target_srcm_blur = tf.clip_by_value(gpu_target_srcm_blur, 0, 0.5) * 2
gpu_target_dstm_blur = nn.gaussian_blur(gpu_target_dstm, max(1, resolution // 32) )
gpu_target_dstm_blur = tf.clip_by_value(gpu_target_dstm_blur, 0, 0.5) * 2
gpu_target_dst_anti_masked = gpu_target_dst*(1.0-gpu_target_dstm_blur)
gpu_target_src_anti_masked = gpu_target_src*(1.0-gpu_target_srcm_blur)
gpu_target_src_masked_opt = gpu_target_src*gpu_target_srcm_blur if masked_training else gpu_target_src
gpu_target_dst_masked_opt = gpu_target_dst*gpu_target_dstm_blur if masked_training else gpu_target_dst
gpu_pred_src_src_masked_opt = gpu_pred_src_src*gpu_target_srcm_blur if masked_training else gpu_pred_src_src
gpu_pred_src_src_anti_masked = gpu_pred_src_src*(1.0-gpu_target_srcm_blur)
gpu_pred_dst_dst_masked_opt = gpu_pred_dst_dst*gpu_target_dstm_blur if masked_training else gpu_pred_dst_dst
gpu_pred_dst_dst_anti_masked = gpu_pred_dst_dst*(1.0-gpu_target_dstm_blur)
if resolution < 256:
gpu_src_loss = tf.reduce_mean ( 10*nn.dssim(gpu_target_src_masked_opt, gpu_pred_src_src_masked_opt, max_val=1.0, filter_size=int(resolution/11.6)), axis=[1])
else:
gpu_src_loss = tf.reduce_mean ( 5*nn.dssim(gpu_target_src_masked_opt, gpu_pred_src_src_masked_opt, max_val=1.0, filter_size=int(resolution/11.6)), axis=[1])
gpu_src_loss += tf.reduce_mean ( 5*nn.dssim(gpu_target_src_masked_opt, gpu_pred_src_src_masked_opt, max_val=1.0, filter_size=int(resolution/23.2)), axis=[1])
gpu_src_loss += tf.reduce_mean ( 10*tf.square ( gpu_target_src_masked_opt - gpu_pred_src_src_masked_opt ), axis=[1,2,3])
if eyes_mouth_prio:
gpu_src_loss += tf.reduce_mean ( 300*tf.abs ( gpu_target_src*gpu_target_srcm_em - gpu_pred_src_src*gpu_target_srcm_em ), axis=[1,2,3])
gpu_src_loss += tf.reduce_mean ( 10*tf.square( gpu_target_srcm - gpu_pred_src_srcm ),axis=[1,2,3] )
if resolution < 256:
gpu_dst_loss = tf.reduce_mean ( 10*nn.dssim(gpu_target_dst_masked_opt, gpu_pred_dst_dst_masked_opt, max_val=1.0, filter_size=int(resolution/11.6) ), axis=[1])
else:
gpu_dst_loss = tf.reduce_mean ( 5*nn.dssim(gpu_target_dst_masked_opt, gpu_pred_dst_dst_masked_opt, max_val=1.0, filter_size=int(resolution/11.6) ), axis=[1])
gpu_dst_loss += tf.reduce_mean ( 5*nn.dssim(gpu_target_dst_masked_opt, gpu_pred_dst_dst_masked_opt, max_val=1.0, filter_size=int(resolution/23.2) ), axis=[1])
gpu_dst_loss += tf.reduce_mean ( 10*tf.square( gpu_target_dst_masked_opt- gpu_pred_dst_dst_masked_opt ), axis=[1,2,3])
if eyes_mouth_prio:
gpu_dst_loss += tf.reduce_mean ( 300*tf.abs ( gpu_target_dst*gpu_target_dstm_em - gpu_pred_dst_dst*gpu_target_dstm_em ), axis=[1,2,3])
gpu_dst_loss += tf.reduce_mean ( 10*tf.square( gpu_target_dstm - gpu_pred_dst_dstm ),axis=[1,2,3] )
gpu_dst_loss += 0.1*tf.reduce_mean(tf.square(gpu_pred_dst_dst_anti_masked-gpu_target_dst_anti_masked),axis=[1,2,3] )
gpu_src_losses += [gpu_src_loss]
gpu_dst_losses += [gpu_dst_loss]
gpu_G_loss = gpu_src_loss + gpu_dst_loss
def DLossOnes(logits):
return tf.reduce_mean( tf.nn.sigmoid_cross_entropy_with_logits(labels=tf.ones_like(logits), logits=logits), axis=[1,2,3])
def DLossZeros(logits):
return tf.reduce_mean( tf.nn.sigmoid_cross_entropy_with_logits(labels=tf.zeros_like(logits), logits=logits), axis=[1,2,3])
if gan_power != 0:
gpu_pred_src_src_d, gpu_pred_src_src_d2 = self.GAN(gpu_pred_src_src_masked_opt)
gpu_pred_dst_dst_d, gpu_pred_dst_dst_d2 = self.GAN(gpu_pred_dst_dst_masked_opt)
gpu_target_src_d, gpu_target_src_d2 = self.GAN(gpu_target_src_masked_opt)
gpu_target_dst_d, gpu_target_dst_d2 = self.GAN(gpu_target_dst_masked_opt)
gpu_D_src_dst_loss = (DLossOnes (gpu_target_src_d) + DLossOnes (gpu_target_src_d2) + \
DLossZeros(gpu_pred_src_src_d) + DLossZeros(gpu_pred_src_src_d2) + \
DLossOnes (gpu_target_dst_d) + DLossOnes (gpu_target_dst_d2) + \
DLossZeros(gpu_pred_dst_dst_d) + DLossZeros(gpu_pred_dst_dst_d2)
) * ( 1.0 / 8)
gpu_D_src_dst_loss_gvs += [ nn.gradients (gpu_D_src_dst_loss, self.GAN.get_weights() ) ]
gpu_G_loss += (DLossOnes(gpu_pred_src_src_d) + DLossOnes(gpu_pred_src_src_d2) + \
DLossOnes(gpu_pred_dst_dst_d) + DLossOnes(gpu_pred_dst_dst_d2)
) * gan_power
if masked_training:
# Minimal src-src-bg rec with total_variation_mse to suppress random bright dots from gan
gpu_G_loss += 0.000001*nn.total_variation_mse(gpu_pred_src_src)
gpu_G_loss += 0.02*tf.reduce_mean(tf.square(gpu_pred_src_src_anti_masked-gpu_target_src_anti_masked),axis=[1,2,3] )
gpu_G_loss_gvs += [ nn.gradients ( gpu_G_loss, self.src_dst_trainable_weights ) ]
# Average losses and gradients, and create optimizer update ops
with tf.device(f'/CPU:0'):
pred_src_src = nn.concat(gpu_pred_src_src_list, 0)
pred_dst_dst = nn.concat(gpu_pred_dst_dst_list, 0)
pred_src_dst = nn.concat(gpu_pred_src_dst_list, 0)
pred_src_srcm = nn.concat(gpu_pred_src_srcm_list, 0)
pred_dst_dstm = nn.concat(gpu_pred_dst_dstm_list, 0)
pred_src_dstm = nn.concat(gpu_pred_src_dstm_list, 0)
with tf.device (models_opt_device):
src_loss = tf.concat(gpu_src_losses, 0)
dst_loss = tf.concat(gpu_dst_losses, 0)
src_dst_loss_gv_op = self.src_dst_opt.get_update_op (nn.average_gv_list (gpu_G_loss_gvs))
if gan_power != 0:
src_D_src_dst_loss_gv_op = self.GAN_opt.get_update_op (nn.average_gv_list(gpu_D_src_dst_loss_gvs) )
#GAN_loss_gv_op = self.src_dst_opt.get_update_op (nn.average_gv_list(gpu_GAN_loss_gvs) )
# Initializing training and view functions
def src_dst_train(warped_src, target_src, target_srcm, target_srcm_em, \
warped_dst, target_dst, target_dstm, target_dstm_em, ):
s, d, _ = nn.tf_sess.run ( [ src_loss, dst_loss, src_dst_loss_gv_op],
feed_dict={self.warped_src :warped_src,
self.target_src :target_src,
self.target_srcm:target_srcm,
self.target_srcm_em:target_srcm_em,
self.warped_dst :warped_dst,
self.target_dst :target_dst,
self.target_dstm:target_dstm,
self.target_dstm_em:target_dstm_em,
})
return s, d
self.src_dst_train = src_dst_train
if gan_power != 0:
def D_src_dst_train(warped_src, target_src, target_srcm, target_srcm_em, \
warped_dst, target_dst, target_dstm, target_dstm_em, ):
nn.tf_sess.run ([src_D_src_dst_loss_gv_op], feed_dict={self.warped_src :warped_src,
self.target_src :target_src,
self.target_srcm:target_srcm,
self.target_srcm_em:target_srcm_em,
self.warped_dst :warped_dst,
self.target_dst :target_dst,
self.target_dstm:target_dstm,
self.target_dstm_em:target_dstm_em})
self.D_src_dst_train = D_src_dst_train
def AE_view(warped_src, warped_dst, morph_value):
return nn.tf_sess.run ( [pred_src_src, pred_dst_dst, pred_dst_dstm, pred_src_dst, pred_src_dstm],
feed_dict={self.warped_src:warped_src, self.warped_dst:warped_dst, self.morph_value_t:[morph_value] })
self.AE_view = AE_view
else:
#Initializing merge function
with tf.device( nn.tf_default_device_name if len(devices) != 0 else f'/CPU:0'):
gpu_dst_code = self.encoder (self.warped_dst)
gpu_dst_inter_src_code = self.inter_src ( gpu_dst_code)
gpu_dst_inter_dst_code = self.inter_dst ( gpu_dst_code)
ae_dims_slice = tf.cast(ae_dims*self.morph_value_t[0], tf.int32)
gpu_src_dst_code = tf.concat( ( tf.slice(gpu_dst_inter_src_code, [0,0,0,0], [-1, ae_dims_slice , lowest_dense_res, lowest_dense_res]),
tf.slice(gpu_dst_inter_dst_code, [0,ae_dims_slice,0,0], [-1,ae_dims-ae_dims_slice, lowest_dense_res,lowest_dense_res]) ), 1 )
gpu_pred_src_dst, gpu_pred_src_dstm = self.decoder(gpu_dst_inter_src_code)
_, gpu_pred_dst_dstm = self.decoder(gpu_dst_inter_dst_code)
def AE_merge(warped_dst, morph_value):
return nn.tf_sess.run ( [gpu_pred_src_dst, gpu_pred_dst_dstm, gpu_pred_src_dstm], feed_dict={self.warped_dst:warped_dst, self.morph_value_t:[morph_value] })
self.AE_merge = AE_merge
# Loading/initializing all models/optimizers weights
for model, filename in io.progress_bar_generator(self.model_filename_list, "Initializing models"):
do_init = self.is_first_run()
if self.is_training and gan_power != 0 and model == self.GAN:
if self.gan_model_changed:
do_init = True
if not do_init:
do_init = not model.load_weights( self.get_strpath_storage_for_file(filename) )
if do_init:
model.init_weights()
###############
# initializing sample generators
if self.is_training:
training_data_src_path = self.training_data_src_path
training_data_dst_path = self.training_data_dst_path
random_ct_samples_path=training_data_dst_path if ct_mode is not None else None
cpu_count = min(multiprocessing.cpu_count(), 8)
src_generators_count = cpu_count // 2
dst_generators_count = cpu_count // 2
if ct_mode is not None:
src_generators_count = int(src_generators_count * 1.5)
self.set_training_data_generators ([
SampleGeneratorFace(training_data_src_path, random_ct_samples_path=random_ct_samples_path, debug=self.is_debug(), batch_size=self.get_batch_size(),
sample_process_options=SampleProcessor.Options(random_flip=random_src_flip),
output_sample_types = [ {'sample_type': SampleProcessor.SampleType.FACE_IMAGE,'warp':random_warp, 'transform':True, 'channel_type' : SampleProcessor.ChannelType.BGR, 'ct_mode': ct_mode, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
{'sample_type': SampleProcessor.SampleType.FACE_IMAGE,'warp':False , 'transform':True, 'channel_type' : SampleProcessor.ChannelType.BGR, 'ct_mode': ct_mode, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
{'sample_type': SampleProcessor.SampleType.FACE_MASK, 'warp':False , 'transform':True, 'channel_type' : SampleProcessor.ChannelType.G, 'face_mask_type' : SampleProcessor.FaceMaskType.FULL_FACE, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
{'sample_type': SampleProcessor.SampleType.FACE_MASK, 'warp':False , 'transform':True, 'channel_type' : SampleProcessor.ChannelType.G, 'face_mask_type' : SampleProcessor.FaceMaskType.EYES_MOUTH, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
],
uniform_yaw_distribution=self.options['uniform_yaw'],
generators_count=src_generators_count ),
SampleGeneratorFace(training_data_dst_path, debug=self.is_debug(), batch_size=self.get_batch_size(),
sample_process_options=SampleProcessor.Options(random_flip=random_dst_flip),
output_sample_types = [ {'sample_type': SampleProcessor.SampleType.FACE_IMAGE,'warp':random_warp, 'transform':True, 'channel_type' : SampleProcessor.ChannelType.BGR, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
{'sample_type': SampleProcessor.SampleType.FACE_IMAGE,'warp':False , 'transform':True, 'channel_type' : SampleProcessor.ChannelType.BGR, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
{'sample_type': SampleProcessor.SampleType.FACE_MASK, 'warp':False , 'transform':True, 'channel_type' : SampleProcessor.ChannelType.G, 'face_mask_type' : SampleProcessor.FaceMaskType.FULL_FACE, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
{'sample_type': SampleProcessor.SampleType.FACE_MASK, 'warp':False , 'transform':True, 'channel_type' : SampleProcessor.ChannelType.G, 'face_mask_type' : SampleProcessor.FaceMaskType.EYES_MOUTH, 'face_type':self.face_type, 'data_format':nn.data_format, 'resolution': resolution},
],
uniform_yaw_distribution=self.options['uniform_yaw'],
generators_count=dst_generators_count )
])
self.last_src_samples_loss = []
self.last_dst_samples_loss = []
def dump_ckpt(self):
tf = nn.tf
with tf.device ('/CPU:0'):
warped_dst = tf.placeholder (nn.floatx, (None, self.resolution, self.resolution, 3), name='in_face')
warped_dst = tf.transpose(warped_dst, (0,3,1,2))
morph_value = tf.placeholder (nn.floatx, (1,), name='morph_value')
gpu_dst_code = self.encoder (warped_dst)
gpu_dst_inter_src_code = self.inter_src ( gpu_dst_code)
gpu_dst_inter_dst_code = self.inter_dst ( gpu_dst_code)
ae_dims_slice = tf.cast(self.ae_dims*morph_value[0], tf.int32)
gpu_src_dst_code = tf.concat( (tf.slice(gpu_dst_inter_src_code, [0,0,0,0], [-1, ae_dims_slice , self.lowest_dense_res, self.lowest_dense_res]),
tf.slice(gpu_dst_inter_dst_code, [0,ae_dims_slice,0,0], [-1,self.ae_dims-ae_dims_slice, self.lowest_dense_res,self.lowest_dense_res]) ), 1 )
gpu_pred_src_dst, gpu_pred_src_dstm = self.decoder(gpu_src_dst_code)
_, gpu_pred_dst_dstm = self.decoder(gpu_dst_inter_dst_code)
gpu_pred_src_dst = tf.transpose(gpu_pred_src_dst, (0,2,3,1))
gpu_pred_dst_dstm = tf.transpose(gpu_pred_dst_dstm, (0,2,3,1))
gpu_pred_src_dstm = tf.transpose(gpu_pred_src_dstm, (0,2,3,1))
saver = tf.train.Saver()
tf.identity(gpu_pred_dst_dstm, name='out_face_mask')
tf.identity(gpu_pred_src_dst, name='out_celeb_face')
tf.identity(gpu_pred_src_dstm, name='out_celeb_face_mask')
saver.save(nn.tf_sess, self.get_strpath_storage_for_file('.ckpt') )
#override
def get_model_filename_list(self):
return self.model_filename_list
#override
def onSave(self):
for model, filename in io.progress_bar_generator(self.get_model_filename_list(), "Saving", leave=False):
model.save_weights ( self.get_strpath_storage_for_file(filename) )
#override
def should_save_preview_history(self):
return (not io.is_colab() and self.iter % ( 10*(max(1,self.resolution // 64)) ) == 0) or \
(io.is_colab() and self.iter % 100 == 0)
#override
def onTrainOneIter(self):
bs = self.get_batch_size()
( (warped_src, target_src, target_srcm, target_srcm_em), \
(warped_dst, target_dst, target_dstm, target_dstm_em) ) = self.generate_next_samples()
src_loss, dst_loss = self.src_dst_train (warped_src, target_src, target_srcm, target_srcm_em, warped_dst, target_dst, target_dstm, target_dstm_em)
for i in range(bs):
self.last_src_samples_loss.append ( (target_src[i], target_srcm[i], target_srcm_em[i], src_loss[i] ) )
self.last_dst_samples_loss.append ( (target_dst[i], target_dstm[i], target_dstm_em[i], dst_loss[i] ) )
if len(self.last_src_samples_loss) >= bs*16:
src_samples_loss = sorted(self.last_src_samples_loss, key=operator.itemgetter(3), reverse=True)
dst_samples_loss = sorted(self.last_dst_samples_loss, key=operator.itemgetter(3), reverse=True)
target_src = np.stack( [ x[0] for x in src_samples_loss[:bs] ] )
target_srcm = np.stack( [ x[1] for x in src_samples_loss[:bs] ] )
target_srcm_em = np.stack( [ x[2] for x in src_samples_loss[:bs] ] )
target_dst = np.stack( [ x[0] for x in dst_samples_loss[:bs] ] )
target_dstm = np.stack( [ x[1] for x in dst_samples_loss[:bs] ] )
target_dstm_em = np.stack( [ x[2] for x in dst_samples_loss[:bs] ] )
src_loss, dst_loss = self.src_dst_train (target_src, target_src, target_srcm, target_srcm_em, target_dst, target_dst, target_dstm, target_dstm_em)
self.last_src_samples_loss = []
self.last_dst_samples_loss = []
if self.gan_power != 0:
self.D_src_dst_train (warped_src, target_src, target_srcm, target_srcm_em, warped_dst, target_dst, target_dstm, target_dstm_em)
return ( ('src_loss', np.mean(src_loss) ), ('dst_loss', np.mean(dst_loss) ), )
#override
def onGetPreview(self, samples):
( (warped_src, target_src, target_srcm, target_srcm_em),
(warped_dst, target_dst, target_dstm, target_dstm_em) ) = samples
S, D, SS, DD, DDM_000, _, _ = [ np.clip( nn.to_data_format(x,"NHWC", self.model_data_format), 0.0, 1.0) for x in ([target_src,target_dst] + self.AE_view (target_src, target_dst, 0.0) ) ]
_, _, DDM_025, SD_025, SDM_025 = [ np.clip( nn.to_data_format(x,"NHWC", self.model_data_format), 0.0, 1.0) for x in self.AE_view (target_src, target_dst, 0.25) ]
_, _, DDM_050, SD_050, SDM_050 = [ np.clip( nn.to_data_format(x,"NHWC", self.model_data_format), 0.0, 1.0) for x in self.AE_view (target_src, target_dst, 0.50) ]
_, _, DDM_065, SD_065, SDM_065 = [ np.clip( nn.to_data_format(x,"NHWC", self.model_data_format), 0.0, 1.0) for x in self.AE_view (target_src, target_dst, 0.65) ]
_, _, DDM_075, SD_075, SDM_075 = [ np.clip( nn.to_data_format(x,"NHWC", self.model_data_format), 0.0, 1.0) for x in self.AE_view (target_src, target_dst, 0.75) ]
_, _, DDM_100, SD_100, SDM_100 = [ np.clip( nn.to_data_format(x,"NHWC", self.model_data_format), 0.0, 1.0) for x in self.AE_view (target_src, target_dst, 1.00) ]
(DDM_000,
DDM_025, SDM_025,
DDM_050, SDM_050,
DDM_065, SDM_065,
DDM_075, SDM_075,
DDM_100, SDM_100) = [ np.repeat (x, (3,), -1) for x in (DDM_000,
DDM_025, SDM_025,
DDM_050, SDM_050,
DDM_065, SDM_065,
DDM_075, SDM_075,
DDM_100, SDM_100) ]
target_srcm, target_dstm = [ nn.to_data_format(x,"NHWC", self.model_data_format) for x in ([target_srcm, target_dstm] )]
n_samples = min(4, self.get_batch_size(), 800 // self.resolution )
result = []
i = np.random.randint(n_samples)
st = [ np.concatenate ((S[i], D[i], DD[i]*DDM_000[i]), axis=1) ]
st += [ np.concatenate ((SS[i], DD[i], SD_075[i] ), axis=1) ]
result += [ ('AMP morph 0.75', np.concatenate (st, axis=0 )), ]
st = [ np.concatenate ((DD[i], SD_025[i], SD_050[i]), axis=1) ]
st += [ np.concatenate ((SD_065[i], SD_075[i], SD_100[i]), axis=1) ]
result += [ ('AMP morph list', np.concatenate (st, axis=0 )), ]
st = [ np.concatenate ((DD[i], SD_025[i]*DDM_025[i]*SDM_025[i], SD_050[i]*DDM_050[i]*SDM_050[i]), axis=1) ]
st += [ np.concatenate ((SD_065[i]*DDM_065[i]*SDM_065[i], SD_075[i]*DDM_075[i]*SDM_075[i], SD_100[i]*DDM_100[i]*SDM_100[i]), axis=1) ]
result += [ ('AMP morph list masked', np.concatenate (st, axis=0 )), ]
return result
def predictor_func (self, face, morph_value):
face = nn.to_data_format(face[None,...], self.model_data_format, "NHWC")
bgr, mask_dst_dstm, mask_src_dstm = [ nn.to_data_format(x,"NHWC", self.model_data_format).astype(np.float32) for x in self.AE_merge (face, morph_value) ]
return bgr[0], mask_src_dstm[0][...,0], mask_dst_dstm[0][...,0]
#override
def get_MergerConfig(self):
morph_factor = np.clip ( io.input_number ("Morph factor", 0.75, add_info="0.0 .. 1.0"), 0.0, 1.0 )
def predictor_morph(face):
return self.predictor_func(face, morph_factor)
import merger
return predictor_morph, (self.options['resolution'], self.options['resolution'], 3), merger.MergerConfigMasked(face_type=self.face_type, default_mode = 'overlay')
Model = AMPModel
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