check image size for resize it

app.py

@@ -93,7 +93,9 @@ def main():
     #read the csv file and display the dataframe
     if file is not None:
         image = Image.open(file) # read image with PIL library
-        image = image.resize((600, 400))
+        w, h = image.size
+        if w > 600 or h > 400:
+            image = image.resize((600, 400))
         st.image(image) #display
         holder.empty()