add new quality metric

diffsynth/extensions/QualityMetric/clip.py

@@ -5,7 +5,7 @@ from .open_clip import create_model_and_transforms, get_tokenizer
 from .config import MODEL_PATHS
 
 class CLIPScore:
-    def __init__(self, device: torch.device):
+    def __init__(self, device: torch.device, path: str = MODEL_PATHS):
         """Initialize the CLIPScore with a model and tokenizer.
         
         Args:
@@ -17,7 +17,7 @@ class CLIPScore:
         self.model, _, self.preprocess_val = create_model_and_transforms(
             "ViT-H-14",
             # "laion2B-s32B-b79K",
-            pretrained=MODEL_PATHS.get("open_clip"),
+            pretrained=path.get("open_clip"),
             precision="amp",
             device=device,
             jit=False,