[Fooocus 2.0.50] Variation/Upscale (Midjourney Toolbar) (#389)

modules/upscaler.py

@@ -0,0 +1,25 @@
+import os
+import torch
+
+from comfy_extras.chainner_models.architecture.RRDB import RRDBNet as ESRGAN
+from comfy_extras.nodes_upscale_model import ImageUpscaleWithModel
+from collections import OrderedDict
+from modules.path import upscale_models_path
+
+model_filename = os.path.join(upscale_models_path, 'fooocus_upscaler_s409985e5.bin')
+opImageUpscaleWithModel = ImageUpscaleWithModel()
+model = None
+
+
+def perform_upscale(img):
+    global model
+    if model is None:
+        sd = torch.load(model_filename)
+        sdo = OrderedDict()
+        for k, v in sd.items():
+            sdo[k.replace('residual_block_', 'RDB')] = v
+        del sd
+        model = ESRGAN(sdo)
+        model.cpu()
+        model.eval()
+    return opImageUpscaleWithModel.upscale(model, img)[0]