Update app.py

app.py

@@ -13,7 +13,7 @@ def load_model_1():  # CLIP-GPT2
 
 # Caption generation functions
 def generate_caption_clipgpt(image):
-    image = io.imread(img)
+    image = io.imread(image)
     pil_image = PIL.Image.fromarray(image)
     caption = clipGPT.generate_caption_clipgpt(pil_image)
     return caption