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b6b44ab 77f1528 b6b44ab 303ab82 b6b44ab f66a0cd 8c7686d b6b44ab 8c7686d 303ab82 b6b44ab 8c7686d b6b44ab 8c7686d 303ab82 b6b44ab 8c7686d b6b44ab 77f1528 b6b44ab | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | import torch
import torch.nn as nn
from transformers import PreTrainedModel
from .configuration_pixel import TopAIImageConfig
class ResidualBlock(nn.Module):
def __init__(self, channels):
super().__init__()
self.block = nn.Sequential(
nn.Conv2d(channels, channels, kernel_size=3, padding=1, bias=False),
nn.BatchNorm2d(channels),
nn.ReLU(True),
nn.Conv2d(channels, channels, kernel_size=3, padding=1, bias=False),
nn.BatchNorm2d(channels)
)
def forward(self, x):
return x + self.block(x)
class TopAIImageGenerator(PreTrainedModel):
config_class = TopAIImageConfig
# ืชืืงืื ื-AttributeError: ืืืื ืืืืืช ืืืืื (dict) ืืื ืฉืชืืื ืื ืืชืืื .keys()
all_tied_weights_keys = {}
def __init__(self, config):
super().__init__(config)
# ืฉืืืืฉ ื-hidden_dim ืืืงืื ืคืื (512)
h = config.hidden_dim
self.text_projection = nn.Linear(config.input_dim, 4 * 4 * h)
# ืื ืืื ืืื ืืืช ืฉืืชืืืื ืืืืืง ืืืฉืงืืืืช ื-Safetensors
self.decoder = nn.Sequential(
# ืฉืืื 0: ื-512 ื-512 (ืืื ืืื ื-Mismatch)
self._upsample(h, h),
# ืฉืืื 1
ResidualBlock(h),
# ืฉืืื 2: ื-512 ื-256
self._upsample(h, 256),
# ืฉืืื 3
ResidualBlock(256),
# ืฉืืื 4: ื-256 ื-128
self._upsample(256, 128),
# ืฉืืื 5: ื-128 ื-64
self._upsample(128, 64),
# ืฉืืื 6: ืืืขืืจ ืืกืืคื ื-32 ืคืืืืจืื
nn.ConvTranspose2d(64, 32, 4, 2, 1, bias=False),
nn.BatchNorm2d(32),
nn.ReLU(True),
# ืฉืืื 9: ืืืจื ืืขืจืืฆื ืชืืื ื (RGB)
nn.Conv2d(32, config.image_channels, kernel_size=3, padding=1),
nn.Tanh()
)
def _upsample(self, i, o):
return nn.Sequential(
nn.ConvTranspose2d(i, o, 4, 2, 1, bias=False),
nn.BatchNorm2d(o),
nn.ReLU(True)
)
def forward(self, text_embeddings):
# ืฉืื ืื ืฆืืจื ืืืคืช ืืืคืืื ืื ืจืืฉืื ืืช
x = self.text_projection(text_embeddings)
x = x.view(-1, self.config.hidden_dim, 4, 4)
return self.decoder(x) |