mirror of
https://github.com/iperov/DeepFaceLab.git
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0c2e1c3944
Maximum resolution is increased to 640. ‘hd’ archi is removed. ‘hd’ was experimental archi created to remove subpixel shake, but ‘lr_dropout’ and ‘disable random warping’ do that better. ‘uhd’ is renamed to ‘-u’ dfuhd and liaeuhd will be automatically renamed to df-u and liae-u in existing models. Added new experimental archi (key -d) which doubles the resolution using the same computation cost. It is mean same configs will be x2 faster, or for example you can set 448 resolution and it will train as 224. Strongly recommended not to train from scratch and use pretrained models. New archi naming: 'df' keeps more identity-preserved face. 'liae' can fix overly different face shapes. '-u' increased likeness of the face. '-d' (experimental) doubling the resolution using the same computation cost Examples: df, liae, df-d, df-ud, liae-ud, ... Improved GAN training (GAN_power option). It was used for dst model, but actually we don’t need it for dst. Instead, a second src GAN model with x2 smaller patch size was added, so the overall quality for hi-res models should be higher. Added option ‘Uniform yaw distribution of samples (y/n)’: Helps to fix blurry side faces due to small amount of them in the faceset. Quick96: Now based on df-ud archi and 20% faster. XSeg trainer: Improved sample generator. Now it randomly adds the background from other samples. Result is reduced chance of random mask noise on the area outside the face. Now you can specify ‘batch_size’ in range 2-16. Reduced size of samples with applied XSeg mask. Thus size of packed samples with applied xseg mask is also reduced.
208 lines
No EOL
8.3 KiB
Python
208 lines
No EOL
8.3 KiB
Python
import multiprocessing
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import pickle
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import time
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import traceback
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from enum import IntEnum
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import cv2
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import numpy as np
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from core import imagelib, mplib, pathex
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from core.imagelib import sd
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from core.cv2ex import *
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from core.interact import interact as io
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from core.joblib import Subprocessor, SubprocessGenerator, ThisThreadGenerator
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from facelib import LandmarksProcessor
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from samplelib import (SampleGeneratorBase, SampleLoader, SampleProcessor, SampleType)
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class SampleGeneratorFaceXSeg(SampleGeneratorBase):
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def __init__ (self, paths, debug=False, batch_size=1, resolution=256, face_type=None,
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generators_count=4, data_format="NHWC",
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**kwargs):
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super().__init__(debug, batch_size)
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self.initialized = False
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samples = sum([ SampleLoader.load (SampleType.FACE, path) for path in paths ] )
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seg_sample_idxs = SegmentedSampleFilterSubprocessor(samples).run()
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seg_samples_len = len(seg_sample_idxs)
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if seg_samples_len == 0:
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raise Exception(f"No segmented faces found.")
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else:
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io.log_info(f"Using {seg_samples_len} segmented samples.")
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if self.debug:
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self.generators_count = 1
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else:
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self.generators_count = max(1, generators_count)
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if self.debug:
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self.generators = [ThisThreadGenerator ( self.batch_func, (samples, seg_sample_idxs, resolution, face_type, data_format) )]
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else:
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self.generators = [SubprocessGenerator ( self.batch_func, (samples, seg_sample_idxs, resolution, face_type, data_format), start_now=False ) \
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for i in range(self.generators_count) ]
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SubprocessGenerator.start_in_parallel( self.generators )
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self.generator_counter = -1
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self.initialized = True
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#overridable
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def is_initialized(self):
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return self.initialized
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def __iter__(self):
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return self
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def __next__(self):
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self.generator_counter += 1
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generator = self.generators[self.generator_counter % len(self.generators) ]
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return next(generator)
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def batch_func(self, param ):
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samples, seg_sample_idxs, resolution, face_type, data_format = param
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shuffle_idxs = []
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bg_shuffle_idxs = []
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random_flip = True
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rotation_range=[-10,10]
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scale_range=[-0.05, 0.05]
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tx_range=[-0.05, 0.05]
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ty_range=[-0.05, 0.05]
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random_bilinear_resize_chance, random_bilinear_resize_max_size_per = 25,75
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motion_blur_chance, motion_blur_mb_max_size = 25, 5
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gaussian_blur_chance, gaussian_blur_kernel_max_size = 25, 5
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def gen_img_mask(sample):
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img = sample.load_bgr()
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h,w,c = img.shape
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mask = np.zeros ((h,w,1), dtype=np.float32)
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sample.seg_ie_polys.overlay_mask(mask)
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if face_type == sample.face_type:
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if w != resolution:
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img = cv2.resize( img, (resolution, resolution), cv2.INTER_LANCZOS4 )
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mask = cv2.resize( mask, (resolution, resolution), cv2.INTER_LANCZOS4 )
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else:
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mat = LandmarksProcessor.get_transform_mat (sample.landmarks, resolution, face_type)
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img = cv2.warpAffine( img, mat, (resolution,resolution), borderMode=cv2.BORDER_CONSTANT, flags=cv2.INTER_LANCZOS4 )
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mask = cv2.warpAffine( mask, mat, (resolution,resolution), borderMode=cv2.BORDER_CONSTANT, flags=cv2.INTER_LANCZOS4 )
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if len(mask.shape) == 2:
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mask = mask[...,None]
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return img, mask
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bs = self.batch_size
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while True:
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batches = [ [], [] ]
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n_batch = 0
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while n_batch < bs:
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try:
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if len(shuffle_idxs) == 0:
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shuffle_idxs = seg_sample_idxs.copy()
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np.random.shuffle(shuffle_idxs)
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sample = samples[shuffle_idxs.pop()]
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img, mask = gen_img_mask(sample)
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if np.random.randint(2) == 0:
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if len(bg_shuffle_idxs) == 0:
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bg_shuffle_idxs = seg_sample_idxs.copy()
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np.random.shuffle(bg_shuffle_idxs)
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bg_sample = samples[bg_shuffle_idxs.pop()]
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bg_img, bg_mask = gen_img_mask(bg_sample)
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bg_wp = imagelib.gen_warp_params(resolution, True, rotation_range=[-180,180], scale_range=[-0.10, 0.10], tx_range=[-0.10, 0.10], ty_range=[-0.10, 0.10] )
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bg_img = imagelib.warp_by_params (bg_wp, bg_img, can_warp=False, can_transform=True, can_flip=True, border_replicate=False)
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bg_mask = imagelib.warp_by_params (bg_wp, bg_mask, can_warp=False, can_transform=True, can_flip=True, border_replicate=False)
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c_mask = (1-bg_mask) * (1-mask)
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img = img*(1-c_mask) + bg_img * c_mask
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warp_params = imagelib.gen_warp_params(resolution, random_flip, rotation_range=rotation_range, scale_range=scale_range, tx_range=tx_range, ty_range=ty_range )
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img = imagelib.warp_by_params (warp_params, img, can_warp=True, can_transform=True, can_flip=True, border_replicate=False)
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mask = imagelib.warp_by_params (warp_params, mask, can_warp=True, can_transform=True, can_flip=True, border_replicate=False)
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img = np.clip(img.astype(np.float32), 0, 1)
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mask[mask < 0.5] = 0.0
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mask[mask >= 0.5] = 1.0
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mask = np.clip(mask, 0, 1)
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if np.random.randint(2) == 0:
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img = imagelib.apply_random_hsv_shift(img, mask=sd.random_circle_faded ([resolution,resolution]))
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else:
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img = imagelib.apply_random_rgb_levels(img, mask=sd.random_circle_faded ([resolution,resolution]))
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img = imagelib.apply_random_motion_blur( img, motion_blur_chance, motion_blur_mb_max_size, mask=sd.random_circle_faded ([resolution,resolution]))
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img = imagelib.apply_random_gaussian_blur( img, gaussian_blur_chance, gaussian_blur_kernel_max_size, mask=sd.random_circle_faded ([resolution,resolution]))
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img = imagelib.apply_random_bilinear_resize( img, random_bilinear_resize_chance, random_bilinear_resize_max_size_per, mask=sd.random_circle_faded ([resolution,resolution]))
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if data_format == "NCHW":
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img = np.transpose(img, (2,0,1) )
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mask = np.transpose(mask, (2,0,1) )
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batches[0].append ( img )
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batches[1].append ( mask )
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n_batch += 1
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except:
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io.log_err ( traceback.format_exc() )
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yield [ np.array(batch) for batch in batches]
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class SegmentedSampleFilterSubprocessor(Subprocessor):
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#override
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def __init__(self, samples ):
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self.samples = samples
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self.samples_len = len(self.samples)
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self.idxs = [*range(self.samples_len)]
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self.result = []
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super().__init__('SegmentedSampleFilterSubprocessor', SegmentedSampleFilterSubprocessor.Cli, 60)
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#override
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def process_info_generator(self):
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for i in range(multiprocessing.cpu_count()):
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yield 'CPU%d' % (i), {}, {'samples':self.samples}
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#override
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def on_clients_initialized(self):
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io.progress_bar ("Filtering", self.samples_len)
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#override
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def on_clients_finalized(self):
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io.progress_bar_close()
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#override
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def get_data(self, host_dict):
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if len (self.idxs) > 0:
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return self.idxs.pop(0)
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return None
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#override
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def on_data_return (self, host_dict, data):
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self.idxs.insert(0, data)
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#override
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def on_result (self, host_dict, data, result):
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idx, is_ok = result
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if is_ok:
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self.result.append(idx)
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io.progress_bar_inc(1)
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def get_result(self):
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return self.result
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class Cli(Subprocessor.Cli):
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#overridable optional
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def on_initialize(self, client_dict):
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self.samples = client_dict['samples']
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def process_data(self, idx):
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return idx, self.samples[idx].seg_ie_polys.get_pts_count() != 0 |