Added image-to-image diffusers pipeline (#8318)

* fix in external.py

* add changeset

---------

Co-authored-by: gradio-pr-bot <gradio-pr-bot@users.noreply.github.com>

.changeset/few-pillows-leave.md

@@ -0,0 +1,5 @@
+---
+"gradio": minor
+---
+
+feat:Added image-to-image diffusers pipeline

gradio/external.py

@@ -348,6 +348,20 @@ def custom_post_binary(data):
         inputs = components.Image(type="filepath", label="Input Image")
         outputs = components.AnnotatedImage(label="Annotations")
         fn = external_utils.object_detection_wrapper(client)
+    # example model: stabilityai/stable-diffusion-xl-refiner-1.0
+    elif p == "image-to-image":
+        inputs = [
+            components.Image(type="filepath", label="Input Image"),
+            components.Textbox(label="Input"),
+        ]
+        outputs = components.Image(label="Output")
+        examples = [
+            [
+                "https://gradio-builds.s3.amazonaws.com/demo-files/cheetah-002.jpg",
+                "Photo of a cheetah with green eyes",
+            ]
+        ]
+        fn = client.image_to_image
     else:
         raise ValueError(f"Unsupported pipeline type: {p}")