add bg removal deprecation notice

Author: PatrickFarley

articles/ai-services/computer-vision/concept-background-removal.md

@@ -14,6 +14,8 @@ ms.author: pafarley
 
 # Background removal (version 4.0 preview)
 
+[!INCLUDE [segmentation-deprecation](includes/segmentation-deprecation.md)]
+
 The Background removal operation can divide images into multiple segments or regions to help the user identify different objects or parts of the image. Background removal creates an alpha matte that separates the foreground object from the background in an image. This service is currently in preview, and the API may change in the future.
 
 

articles/ai-services/computer-vision/how-to/background-removal.md

@@ -13,6 +13,8 @@ ms.date: 01/19/2024
 
 # Remove the background in images
 
+[!INCLUDE [segmentation-deprecation](../includes/segmentation-deprecation.md)]
+
 This article demonstrates how to call the Image Analysis 4.0 API to segment an image (separate the foreground from background). It also shows you how to parse the returned information.
 
 > [!IMPORTANT]

articles/ai-services/computer-vision/includes/segmentation-deprecation.md

@@ -0,0 +1,16 @@
+---
+title: Background removal deprecation notice
+titleSuffix: Azure AI services
+#services: cognitive-services
+author: PatrickFarley
+manager: nitinme
+ms.service: azure-ai-vision
+ms.topic: include
+ms.date: 09/10/2024
+ms.author: pafarley
+---
+
+> [!IMPORTANT]
+> This feature is now deprecated. On January 10, 2025, the Azure AI Vision background removal API will be retired: after this date, API calls to this service will fail.
+>
+> To maintain a smooth operation of your models, install the open-source [Florence 2 model](https://huggingface.co/microsoft/Florence-2-large) and use its Region to segmentation feature, which allows for a similar background removal operation.

articles/ai-services/computer-vision/overview-image-analysis.md

@@ -84,6 +84,8 @@ These APIs are only available in certain geographic regions. See [Region availab
 
 ## Background removal (v4.0 preview only)
 
+[!INCLUDE [segmentation-deprecation](includes/segmentation-deprecation.md)]
+
 Image Analysis 4.0 (preview) offers the ability to remove the background of an image. This feature can either output an image of the detected foreground object with a transparent background, or a grayscale alpha matte image showing the opacity of the detected foreground object. 
 
 [Background removal](./concept-background-removal.md)