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import os |
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import sys |
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import traceback |
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from basicsr.utils.download_util import load_file_from_url |
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from modules.upscaler import Upscaler, UpscalerData |
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from ldsr_model_arch import LDSR |
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from modules import shared, script_callbacks |
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import sd_hijack_autoencoder, sd_hijack_ddpm_v1 |
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class UpscalerLDSR(Upscaler): |
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def __init__(self, user_path): |
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self.name = "LDSR" |
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self.user_path = user_path |
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self.model_url = "https://heibox.uni-heidelberg.de/f/578df07c8fc04ffbadf3/?dl=1" |
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self.yaml_url = "https://heibox.uni-heidelberg.de/f/31a76b13ea27482981b4/?dl=1" |
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super().__init__() |
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scaler_data = UpscalerData("LDSR", None, self) |
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self.scalers = [scaler_data] |
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def load_model(self, path: str): |
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yaml_path = os.path.join(self.model_path, "project.yaml") |
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old_model_path = os.path.join(self.model_path, "model.pth") |
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new_model_path = os.path.join(self.model_path, "model.ckpt") |
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safetensors_model_path = os.path.join(self.model_path, "model.safetensors") |
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if os.path.exists(yaml_path): |
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statinfo = os.stat(yaml_path) |
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if statinfo.st_size >= 10485760: |
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print("Removing invalid LDSR YAML file.") |
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os.remove(yaml_path) |
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if os.path.exists(old_model_path): |
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print("Renaming model from model.pth to model.ckpt") |
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os.rename(old_model_path, new_model_path) |
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if os.path.exists(safetensors_model_path): |
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model = safetensors_model_path |
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else: |
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model = load_file_from_url(url=self.model_url, model_dir=self.model_path, |
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file_name="model.ckpt", progress=True) |
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yaml = load_file_from_url(url=self.yaml_url, model_dir=self.model_path, |
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file_name="project.yaml", progress=True) |
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try: |
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return LDSR(model, yaml) |
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except Exception: |
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print("Error importing LDSR:", file=sys.stderr) |
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print(traceback.format_exc(), file=sys.stderr) |
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return None |
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def do_upscale(self, img, path): |
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ldsr = self.load_model(path) |
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if ldsr is None: |
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print("NO LDSR!") |
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return img |
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ddim_steps = shared.opts.ldsr_steps |
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return ldsr.super_resolution(img, ddim_steps, self.scale) |
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def on_ui_settings(): |
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import gradio as gr |
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shared.opts.add_option("ldsr_steps", shared.OptionInfo(100, "LDSR processing steps. Lower = faster", gr.Slider, {"minimum": 1, "maximum": 200, "step": 1}, section=('upscaling', "Upscaling"))) |
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shared.opts.add_option("ldsr_cached", shared.OptionInfo(False, "Cache LDSR model in memory", gr.Checkbox, {"interactive": True}, section=('upscaling', "Upscaling"))) |
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script_callbacks.on_ui_settings(on_ui_settings) |
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