[Misc] Add Qwen-Image-Edit-2511 running script (#440)

Signed-off-by: samithuang <285365963@qq.com>

examples/offline_inference/image_to_image/image_edit.py

@@ -73,7 +73,7 @@ def parse_args() -> argparse.Namespace:
         default="Qwen/Qwen-Image-Edit",
         help=(
             "Diffusion model name or local path. "
-            "For multiple image inputs, use Qwen/Qwen-Image-Edit-2509 or later version "
+            "For multiple image inputs, use Qwen/Qwen-Image-Edit-2509 or Qwen/Qwen-Image-Edit-2511"
             "which supports QwenImageEditPlusPipeline."
         ),
     )

examples/offline_inference/image_to_image/image_to_image.md

@@ -6,6 +6,14 @@ This example edits an input image with `Qwen/Qwen-Image-Edit` using the `image_e
 
 ### Single Image Editing
 
+Download the example image:
+
+```bash
+wget https://vllm-public-assets.s3.us-west-2.amazonaws.com/omni-assets/qwen-bear.png
+```
+
+Then run:
+
 ```bash
 python image_edit.py \
   --image qwen_bear.png \
@@ -17,7 +25,7 @@ python image_edit.py \
 
 ### Multiple Image Editing (Qwen-Image-Edit-2509)
 
-For multiple image inputs, use `Qwen/Qwen-Image-Edit-2509` or later version:
+For multiple image inputs, use `Qwen/Qwen-Image-Edit-2509` or  `Qwen/Qwen-Image-Edit-2511`:
 
 ```bash
 python image_edit.py \

examples/offline_inference/image_to_image/run_qwen_image_edit_2511.sh

@@ -0,0 +1,8 @@
+python image_edit.py \
+    --model Qwen/Qwen-Image-Edit-2511 \
+    --image qwen_bear.png \
+    --prompt "Add a white art board written with colorful text 'vLLM-Omni' on grassland. Add a paintbrush in the bear's hands. position the bear standing in front of the art board as if painting" \
+    --output output_image_edit.png \
+    --num_inference_steps 50 \
+    --cfg_scale 4.0 \
+    --cache_backend  cache_dit \