[to #42463204] support Pil.Image for image_captioning

Link: https://code.alibaba-inc.com/Ali-MaaS/MaaS-lib/codereview/9049211

modelscope/pipelines/multi_modal/image_captioning.py

@@ -84,8 +84,11 @@ class ImageCaptionPipeline(Pipeline):
                 s = torch.cat([s, self.eos_item])
             return s
 
-        patch_image = self.patch_resize_transform(
-            load_image(input)).unsqueeze(0)
+        if isinstance(input, Image.Image):
+            patch_image = self.patch_resize_transform(input).unsqueeze(0)
+        else:
+            patch_image = self.patch_resize_transform(
+                load_image(input)).unsqueeze(0)
         patch_mask = torch.tensor([True])
         text = 'what does the image describe?'
         src_text = encode_text(