diff --git a/core/modules/image/image.module b/core/modules/image/image.module
index 97b3dd2..aa6060d 100644
--- a/core/modules/image/image.module
+++ b/core/modules/image/image.module
@@ -14,26 +14,36 @@
 
 /**
  * Image style constant for user presets in the database.
+ *
+ * @deprecated in Drupal 8.1.x, will be removed before Drupal 9.0.0.
  */
 const IMAGE_STORAGE_NORMAL = 1;
 
 /**
  * Image style constant for user presets that override module-defined presets.
+ *
+ * @deprecated in Drupal 8.1.x, will be removed before Drupal 9.0.0.
  */
 const IMAGE_STORAGE_OVERRIDE = 2;
 
 /**
  * Image style constant for module-defined presets in code.
+ *
+ * @deprecated in Drupal 8.1.x, will be removed before Drupal 9.0.0.
  */
 const IMAGE_STORAGE_DEFAULT = 4;
 
 /**
  * Image style constant to represent an editable preset.
+ *
+ * @deprecated in Drupal 8.1.x, will be removed before Drupal 9.0.0.
  */
 define('IMAGE_STORAGE_EDITABLE', IMAGE_STORAGE_NORMAL | IMAGE_STORAGE_OVERRIDE);
 
 /**
  * Image style constant to represent any module-based preset.
+ *
+ * @deprecated in Drupal 8.1.x, will be removed before Drupal 9.0.0.
  */
 define('IMAGE_STORAGE_MODULE', IMAGE_STORAGE_OVERRIDE | IMAGE_STORAGE_DEFAULT);