cymic/Waifu_Diffusion_Webui

1import os2import sys3import traceback4 5from basicsr.utils.download_util import load_file_from_url6 7from modules.upscaler import Upscaler, UpscalerData8from modules.ldsr_model_arch import LDSR9from modules import shared10from modules.paths import models_path11 12 13class UpscalerLDSR(Upscaler):14    def __init__(self, user_path):15        self.name = "LDSR"16        self.model_path = os.path.join(models_path, self.name)17        self.user_path = user_path18        self.model_url = "https://heibox.uni-heidelberg.de/f/578df07c8fc04ffbadf3/?dl=1"19        self.yaml_url = "https://heibox.uni-heidelberg.de/f/31a76b13ea27482981b4/?dl=1"20        super().__init__()21        scaler_data = UpscalerData("LDSR", None, self)22        self.scalers = [scaler_data]23 24    def load_model(self, path: str):25        # Remove incorrect project.yaml file if too big26        yaml_path = os.path.join(self.model_path, "project.yaml")27        old_model_path = os.path.join(self.model_path, "model.pth")28        new_model_path = os.path.join(self.model_path, "model.ckpt")29        if os.path.exists(yaml_path):30            statinfo = os.stat(yaml_path)31            if statinfo.st_size >= 10485760:32                print("Removing invalid LDSR YAML file.")33                os.remove(yaml_path)34        if os.path.exists(old_model_path):35            print("Renaming model from model.pth to model.ckpt")36            os.rename(old_model_path, new_model_path)37        model = load_file_from_url(url=self.model_url, model_dir=self.model_path,38                                   file_name="model.ckpt", progress=True)39        yaml = load_file_from_url(url=self.yaml_url, model_dir=self.model_path,40                                  file_name="project.yaml", progress=True)41 42        try:43            return LDSR(model, yaml)44 45        except Exception:46            print("Error importing LDSR:", file=sys.stderr)47            print(traceback.format_exc(), file=sys.stderr)48        return None49 50    def do_upscale(self, img, path):51        ldsr = self.load_model(path)52        if ldsr is None:53            print("NO LDSR!")54            return img55        ddim_steps = shared.opts.ldsr_steps56        return ldsr.super_resolution(img, ddim_steps, self.scale)57