diff options
Diffstat (limited to 'modules/esrgan_model.py')
| -rw-r--r-- | modules/esrgan_model.py | 192 |
1 files changed, 129 insertions, 63 deletions
diff --git a/modules/esrgan_model.py b/modules/esrgan_model.py index 46ad0da3..a13cf6ac 100644 --- a/modules/esrgan_model.py +++ b/modules/esrgan_model.py @@ -11,62 +11,109 @@ from modules.upscaler import Upscaler, UpscalerData from modules.shared import opts
-def fix_model_layers(crt_model, pretrained_net):
- # this code is adapted from https://github.com/xinntao/ESRGAN
- if 'conv_first.weight' in pretrained_net:
- return pretrained_net
-
- if 'model.0.weight' not in pretrained_net:
- is_realesrgan = "params_ema" in pretrained_net and 'body.0.rdb1.conv1.weight' in pretrained_net["params_ema"]
- if is_realesrgan:
- raise Exception("The file is a RealESRGAN model, it can't be used as a ESRGAN model.")
- else:
- raise Exception("The file is not a ESRGAN model.")
- crt_net = crt_model.state_dict()
- load_net_clean = {}
- for k, v in pretrained_net.items():
- if k.startswith('module.'):
- load_net_clean[k[7:]] = v
- else:
- load_net_clean[k] = v
- pretrained_net = load_net_clean
-
- tbd = []
- for k, v in crt_net.items():
- tbd.append(k)
-
- # directly copy
- for k, v in crt_net.items():
- if k in pretrained_net and pretrained_net[k].size() == v.size():
- crt_net[k] = pretrained_net[k]
- tbd.remove(k)
-
- crt_net['conv_first.weight'] = pretrained_net['model.0.weight']
- crt_net['conv_first.bias'] = pretrained_net['model.0.bias']
-
- for k in tbd.copy():
- if 'RDB' in k:
- ori_k = k.replace('RRDB_trunk.', 'model.1.sub.')
- if '.weight' in k:
- ori_k = ori_k.replace('.weight', '.0.weight')
- elif '.bias' in k:
- ori_k = ori_k.replace('.bias', '.0.bias')
- crt_net[k] = pretrained_net[ori_k]
- tbd.remove(k)
-
- crt_net['trunk_conv.weight'] = pretrained_net['model.1.sub.23.weight']
- crt_net['trunk_conv.bias'] = pretrained_net['model.1.sub.23.bias']
- crt_net['upconv1.weight'] = pretrained_net['model.3.weight']
- crt_net['upconv1.bias'] = pretrained_net['model.3.bias']
- crt_net['upconv2.weight'] = pretrained_net['model.6.weight']
- crt_net['upconv2.bias'] = pretrained_net['model.6.bias']
- crt_net['HRconv.weight'] = pretrained_net['model.8.weight']
- crt_net['HRconv.bias'] = pretrained_net['model.8.bias']
- crt_net['conv_last.weight'] = pretrained_net['model.10.weight']
- crt_net['conv_last.bias'] = pretrained_net['model.10.bias']
-
- return crt_net
+def mod2normal(state_dict):
+ # this code is copied from https://github.com/victorca25/iNNfer
+ if 'conv_first.weight' in state_dict:
+ crt_net = {}
+ items = []
+ for k, v in state_dict.items():
+ items.append(k)
+
+ crt_net['model.0.weight'] = state_dict['conv_first.weight']
+ crt_net['model.0.bias'] = state_dict['conv_first.bias']
+
+ for k in items.copy():
+ if 'RDB' in k:
+ ori_k = k.replace('RRDB_trunk.', 'model.1.sub.')
+ if '.weight' in k:
+ ori_k = ori_k.replace('.weight', '.0.weight')
+ elif '.bias' in k:
+ ori_k = ori_k.replace('.bias', '.0.bias')
+ crt_net[ori_k] = state_dict[k]
+ items.remove(k)
+
+ crt_net['model.1.sub.23.weight'] = state_dict['trunk_conv.weight']
+ crt_net['model.1.sub.23.bias'] = state_dict['trunk_conv.bias']
+ crt_net['model.3.weight'] = state_dict['upconv1.weight']
+ crt_net['model.3.bias'] = state_dict['upconv1.bias']
+ crt_net['model.6.weight'] = state_dict['upconv2.weight']
+ crt_net['model.6.bias'] = state_dict['upconv2.bias']
+ crt_net['model.8.weight'] = state_dict['HRconv.weight']
+ crt_net['model.8.bias'] = state_dict['HRconv.bias']
+ crt_net['model.10.weight'] = state_dict['conv_last.weight']
+ crt_net['model.10.bias'] = state_dict['conv_last.bias']
+ state_dict = crt_net
+ return state_dict
+
+
+def resrgan2normal(state_dict, nb=23):
+ # this code is copied from https://github.com/victorca25/iNNfer
+ if "conv_first.weight" in state_dict and "body.0.rdb1.conv1.weight" in state_dict:
+ crt_net = {}
+ items = []
+ for k, v in state_dict.items():
+ items.append(k)
+
+ crt_net['model.0.weight'] = state_dict['conv_first.weight']
+ crt_net['model.0.bias'] = state_dict['conv_first.bias']
+
+ for k in items.copy():
+ if "rdb" in k:
+ ori_k = k.replace('body.', 'model.1.sub.')
+ ori_k = ori_k.replace('.rdb', '.RDB')
+ if '.weight' in k:
+ ori_k = ori_k.replace('.weight', '.0.weight')
+ elif '.bias' in k:
+ ori_k = ori_k.replace('.bias', '.0.bias')
+ crt_net[ori_k] = state_dict[k]
+ items.remove(k)
+
+ crt_net[f'model.1.sub.{nb}.weight'] = state_dict['conv_body.weight']
+ crt_net[f'model.1.sub.{nb}.bias'] = state_dict['conv_body.bias']
+ crt_net['model.3.weight'] = state_dict['conv_up1.weight']
+ crt_net['model.3.bias'] = state_dict['conv_up1.bias']
+ crt_net['model.6.weight'] = state_dict['conv_up2.weight']
+ crt_net['model.6.bias'] = state_dict['conv_up2.bias']
+ crt_net['model.8.weight'] = state_dict['conv_hr.weight']
+ crt_net['model.8.bias'] = state_dict['conv_hr.bias']
+ crt_net['model.10.weight'] = state_dict['conv_last.weight']
+ crt_net['model.10.bias'] = state_dict['conv_last.bias']
+ state_dict = crt_net
+ return state_dict
+
+
+def infer_params(state_dict):
+ # this code is copied from https://github.com/victorca25/iNNfer
+ scale2x = 0
+ scalemin = 6
+ n_uplayer = 0
+ plus = False
+
+ for block in list(state_dict):
+ parts = block.split(".")
+ n_parts = len(parts)
+ if n_parts == 5 and parts[2] == "sub":
+ nb = int(parts[3])
+ elif n_parts == 3:
+ part_num = int(parts[1])
+ if (part_num > scalemin
+ and parts[0] == "model"
+ and parts[2] == "weight"):
+ scale2x += 1
+ if part_num > n_uplayer:
+ n_uplayer = part_num
+ out_nc = state_dict[block].shape[0]
+ if not plus and "conv1x1" in block:
+ plus = True
+
+ nf = state_dict["model.0.weight"].shape[0]
+ in_nc = state_dict["model.0.weight"].shape[1]
+ out_nc = out_nc
+ scale = 2 ** scale2x
+
+ return in_nc, out_nc, nf, nb, plus, scale
+
class UpscalerESRGAN(Upscaler):
def __init__(self, dirname):
@@ -109,22 +156,41 @@ class UpscalerESRGAN(Upscaler): print("Unable to load %s from %s" % (self.model_path, filename))
return None
- pretrained_net = torch.load(filename, map_location='cpu' if devices.device_esrgan.type == 'mps' else None)
- crt_model = arch.RRDBNet(3, 3, 64, 23, gc=32)
+ state_dict = torch.load(filename, map_location='cpu' if devices.device_esrgan.type == 'mps' else None)
+
+ if "params_ema" in state_dict:
+ state_dict = state_dict["params_ema"]
+ elif "params" in state_dict:
+ state_dict = state_dict["params"]
+ num_conv = 16 if "realesr-animevideov3" in filename else 32
+ model = arch.SRVGGNetCompact(num_in_ch=3, num_out_ch=3, num_feat=64, num_conv=num_conv, upscale=4, act_type='prelu')
+ model.load_state_dict(state_dict)
+ model.eval()
+ return model
+
+ if "body.0.rdb1.conv1.weight" in state_dict and "conv_first.weight" in state_dict:
+ nb = 6 if "RealESRGAN_x4plus_anime_6B" in filename else 23
+ state_dict = resrgan2normal(state_dict, nb)
+ elif "conv_first.weight" in state_dict:
+ state_dict = mod2normal(state_dict)
+ elif "model.0.weight" not in state_dict:
+ raise Exception("The file is not a recognized ESRGAN model.")
+
+ in_nc, out_nc, nf, nb, plus, mscale = infer_params(state_dict)
- pretrained_net = fix_model_layers(crt_model, pretrained_net)
- crt_model.load_state_dict(pretrained_net)
- crt_model.eval()
+ model = arch.RRDBNet(in_nc=in_nc, out_nc=out_nc, nf=nf, nb=nb, upscale=mscale, plus=plus)
+ model.load_state_dict(state_dict)
+ model.eval()
- return crt_model
+ return model
def upscale_without_tiling(model, img):
img = np.array(img)
img = img[:, :, ::-1]
- img = np.moveaxis(img, 2, 0) / 255
+ img = np.ascontiguousarray(np.transpose(img, (2, 0, 1))) / 255
img = torch.from_numpy(img).float()
- img = img.unsqueeze(0).to(devices.device_esrgan)
+ img = devices.mps_contiguous_to(img.unsqueeze(0), devices.device_esrgan)
with torch.no_grad():
output = model(img)
output = output.squeeze().float().cpu().clamp_(0, 1).numpy()
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