ESRGAN support

modules/realesrgan_model.py

@@ -4,6 +4,7 @@ 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"])
@@ -12,6 +13,17 @@ 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
@@ -42,6 +54,9 @@ def setup_realesrgan():
         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)