From e36bf768c5ae17a64e86433f7fb2bd0d67fb1a91 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Sun, 12 Oct 2025 15:58:22 +1100
Subject: [PATCH] Added four private SGI tags

---
 src/PIL/TiffTags.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/PIL/TiffTags.py b/src/PIL/TiffTags.py
index 86adaa458..761aa3f6b 100644
--- a/src/PIL/TiffTags.py
+++ b/src/PIL/TiffTags.py
@@ -203,6 +203,11 @@ _tags_v2: dict[int, tuple[str, int, int] | tuple[str, int, int, dict[str, int]]]
     531: ("YCbCrPositioning", SHORT, 1),
     532: ("ReferenceBlackWhite", RATIONAL, 6),
     700: ("XMP", BYTE, 0),
+    # Four private SGI tags
+    32995: ("Matteing", SHORT, 1),
+    32996: ("DataType", SHORT, 0),
+    32997: ("ImageDepth", LONG, 1),
+    32998: ("TileDepth", LONG, 1),
     33432: ("Copyright", ASCII, 1),
     33723: ("IptcNaaInfo", UNDEFINED, 1),
     34377: ("PhotoshopInfo", BYTE, 0),