import numpy as np from nnlib import nnlib from models import ModelBase from facelib import FaceType from samples import * class Model(ModelBase): encoderH5 = 'encoder.h5' decoder_srcH5 = 'decoder_src.h5' decoder_dstH5 = 'decoder_dst.h5' #override def onInitialize(self, **in_options): exec(nnlib.import_all(), locals(), globals()) self.set_vram_batch_requirements( {1.5:2,2:2,3:8,4:16,5:24,6:32,7:40,8:48} ) bgr_shape, mask_shape, self.encoder, self.decoder_src, self.decoder_dst = self.Build(self.created_vram_gb) if not self.is_first_run(): self.encoder.load_weights (self.get_strpath_storage_for_file(self.encoderH5)) self.decoder_src.load_weights (self.get_strpath_storage_for_file(self.decoder_srcH5)) self.decoder_dst.load_weights (self.get_strpath_storage_for_file(self.decoder_dstH5)) input_src_bgr = Input(bgr_shape) input_src_mask = Input(mask_shape) input_dst_bgr = Input(bgr_shape) input_dst_mask = Input(mask_shape) rec_src_bgr, rec_src_mask = self.decoder_src( self.encoder(input_src_bgr) ) rec_dst_bgr, rec_dst_mask = self.decoder_dst( self.encoder(input_dst_bgr) ) self.ae = Model([input_src_bgr,input_src_mask,input_dst_bgr,input_dst_mask], [rec_src_bgr, rec_src_mask, rec_dst_bgr, rec_dst_mask] ) if self.is_training_mode: self.ae, = self.to_multi_gpu_model_if_possible ( [self.ae,] ) self.ae.compile(optimizer=Adam(lr=5e-5, beta_1=0.5, beta_2=0.999), loss=[ DSSIMMaskLoss([input_src_mask]), 'mae', DSSIMMaskLoss([input_dst_mask]), 'mae' ] ) self.src_view = K.function([input_src_bgr],[rec_src_bgr, rec_src_mask]) self.dst_view = K.function([input_dst_bgr],[rec_dst_bgr, rec_dst_mask]) if self.is_training_mode: f = SampleProcessor.TypeFlags self.set_training_data_generators ([ SampleGeneratorFace(self.training_data_src_path, debug=self.is_debug(), batch_size=self.batch_size, output_sample_types=[ [f.WARPED_TRANSFORMED | f.FACE_ALIGN_HALF | f.MODE_BGR, 64], [f.TRANSFORMED | f.FACE_ALIGN_HALF | f.MODE_BGR, 64], [f.TRANSFORMED | f.FACE_ALIGN_HALF | f.MODE_M | f.FACE_MASK_FULL, 64] ] ), SampleGeneratorFace(self.training_data_dst_path, debug=self.is_debug(), batch_size=self.batch_size, output_sample_types=[ [f.WARPED_TRANSFORMED | f.FACE_ALIGN_HALF | f.MODE_BGR, 64], [f.TRANSFORMED | f.FACE_ALIGN_HALF | f.MODE_BGR, 64], [f.TRANSFORMED | f.FACE_ALIGN_HALF | f.MODE_M | f.FACE_MASK_FULL, 64] ] ) ]) #override def onSave(self): self.save_weights_safe( [[self.encoder, self.get_strpath_storage_for_file(self.encoderH5)], [self.decoder_src, self.get_strpath_storage_for_file(self.decoder_srcH5)], [self.decoder_dst, self.get_strpath_storage_for_file(self.decoder_dstH5)]] ) #override def onTrainOneEpoch(self, sample): warped_src, target_src, target_src_full_mask = sample[0] warped_dst, target_dst, target_dst_full_mask = sample[1] total, loss_src_bgr, loss_src_mask, loss_dst_bgr, loss_dst_mask = self.ae.train_on_batch( [warped_src, target_src_full_mask, warped_dst, target_dst_full_mask], [target_src, target_src_full_mask, target_dst, target_dst_full_mask] ) return ( ('loss_src', loss_src_bgr), ('loss_dst', loss_dst_bgr) ) #override def onGetPreview(self, sample): test_A = sample[0][1][0:4] #first 4 samples test_A_m = sample[0][2][0:4] test_B = sample[1][1][0:4] test_B_m = sample[1][2][0:4] AA, mAA = self.src_view([test_A]) AB, mAB = self.src_view([test_B]) BB, mBB = self.dst_view([test_B]) mAA = np.repeat ( mAA, (3,), -1) mAB = np.repeat ( mAB, (3,), -1) mBB = np.repeat ( mBB, (3,), -1) st = [] for i in range(0, len(test_A)): st.append ( np.concatenate ( ( test_A[i,:,:,0:3], AA[i], #mAA[i], test_B[i,:,:,0:3], BB[i], #mBB[i], AB[i], #mAB[i] ), axis=1) ) return [ ('H64', np.concatenate ( st, axis=0 ) ) ] def predictor_func (self, face): face_64_bgr = face[...,0:3] face_64_mask = np.expand_dims(face[...,3],-1) x, mx = self.src_view ( [ np.expand_dims(face_64_bgr,0) ] ) x, mx = x[0], mx[0] return np.concatenate ( (x,mx), -1 ) #override def get_converter(self, **in_options): from models import ConverterMasked if 'erode_mask_modifier' not in in_options.keys(): in_options['erode_mask_modifier'] = 0 in_options['erode_mask_modifier'] += 100 if 'blur_mask_modifier' not in in_options.keys(): in_options['blur_mask_modifier'] = 0 in_options['blur_mask_modifier'] += 100 return ConverterMasked(self.predictor_func, predictor_input_size=64, output_size=64, face_type=FaceType.HALF, **in_options) def Build(self, created_vram_gb): exec(nnlib.code_import_all, locals(), globals()) bgr_shape = (64, 64, 3) mask_shape = (64, 64, 1) def downscale (dim): def func(x): return LeakyReLU(0.1)(Conv2D(dim, 5, strides=2, padding='same')(x)) return func def upscale (dim): def func(x): return PixelShuffler()(LeakyReLU(0.1)(Conv2D(dim * 4, 3, strides=1, padding='same')(x))) return func def Encoder(input_shape): input_layer = Input(input_shape) x = input_layer if created_vram_gb >= 4: x = downscale(128)(x) x = downscale(256)(x) x = downscale(512)(x) x = downscale(1024)(x) x = Dense(1024)(Flatten()(x)) x = Dense(4 * 4 * 1024)(x) x = Reshape((4, 4, 1024))(x) x = upscale(512)(x) else: x = downscale(128)(x) x = downscale(256)(x) x = downscale(512)(x) x = downscale(768)(x) x = Dense(512)(Flatten()(x)) x = Dense(4 * 4 * 512)(x) x = Reshape((4, 4, 512))(x) x = upscale(256)(x) return Model(input_layer, x) def Decoder(): if created_vram_gb >= 4: input_ = Input(shape=(8, 8, 512)) x = input_ x = upscale(512)(x) x = upscale(256)(x) x = upscale(128)(x) else: input_ = Input(shape=(8, 8, 256)) x = input_ x = upscale(256)(x) x = upscale(128)(x) x = upscale(64)(x) y = input_ #mask decoder y = upscale(256)(y) y = upscale(128)(y) y = upscale(64)(y) x = Conv2D(3, kernel_size=5, padding='same', activation='sigmoid')(x) y = Conv2D(1, kernel_size=5, padding='same', activation='sigmoid')(y) return Model(input_, [x,y]) return bgr_shape, mask_shape, Encoder(bgr_shape), Decoder(), Decoder()