import sys import traceback from collections import namedtuple import numpy as np from PIL import Image import modules.images from modules.shared import cmd_opts RealesrganModelInfo = namedtuple("RealesrganModelInfo", ["name", "location", "model", "netscale"]) realesrgan_models = [] have_realesrgan = False RealESRGANer_constructor = None class UpscalerRealESRGAN(modules.images.Upscaler): def __init__(self, upscaling, model_index): self.upscaling = upscaling self.model_index = model_index self.name = realesrgan_models[model_index].name def do_upscale(self, img): return upscale_with_realesrgan(img, self.upscaling, self.model_index) def setup_realesrgan(): global realesrgan_models global have_realesrgan global RealESRGANer_constructor try: from basicsr.archs.rrdbnet_arch import RRDBNet from realesrgan import RealESRGANer from realesrgan.archs.srvgg_arch import SRVGGNetCompact realesrgan_models = [ RealesrganModelInfo( name="Real-ESRGAN 4x plus", location="https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth", netscale=4, model=lambda: RRDBNet(num_in_ch=3, num_out_ch=3, num_feat=64, num_block=23, num_grow_ch=32, scale=4) ), RealesrganModelInfo( name="Real-ESRGAN 4x plus anime 6B", location="https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth", netscale=4, model=lambda: RRDBNet(num_in_ch=3, num_out_ch=3, num_feat=64, num_block=6, num_grow_ch=32, scale=4) ), RealesrganModelInfo( name="Real-ESRGAN 2x plus", location="https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.1/RealESRGAN_x2plus.pth", netscale=2, model=lambda: RRDBNet(num_in_ch=3, num_out_ch=3, num_feat=64, num_block=23, num_grow_ch=32, scale=2) ), ] have_realesrgan = True RealESRGANer_constructor = RealESRGANer for i, model in enumerate(realesrgan_models): modules.shared.sd_upscalers.append(UpscalerRealESRGAN(model.netscale, i)) except Exception: print("Error importing Real-ESRGAN:", file=sys.stderr) print(traceback.format_exc(), file=sys.stderr) realesrgan_models = [RealesrganModelInfo('None', '', 0, None)] have_realesrgan = False def upscale_with_realesrgan(image, RealESRGAN_upscaling, RealESRGAN_model_index): if not have_realesrgan or RealESRGANer_constructor is None: return image info = realesrgan_models[RealESRGAN_model_index] model = info.model() upsampler = RealESRGANer_constructor( scale=info.netscale, model_path=info.location, model=model, half=not cmd_opts.no_half ) upsampled = upsampler.enhance(np.array(image), outscale=RealESRGAN_upscaling)[0] image = Image.fromarray(upsampled) return image