Add a function to convert from Orientation to Exif values

image-rs · Sep 13, 2024 · 9c0d517 · 9c0d517
1 parent b4cb2d6
commit 9c0d517
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/src/orientation.rs b/src/orientation.rs
@@ -38,4 +38,17 @@ impl Orientation {
         }
     }
 
+    /// Converts into [Exif orientation](https://web.archive.org/web/20200412005226/https://www.impulseadventure.com/photo/exif-orientation.html)
+    pub fn to_exif(self) -> u8 {
+        match self {
+            Self::NoTransforms => 1,
+            Self::FlipHorizontal => 2,
+            Self::Rotate180 => 3,
+            Self::FlipVertical => 4,
+            Self::Rotate90FlipH => 5,
+            Self::Rotate90 => 6,
+            Self::Rotate270FlipH => 7,
+            Self::Rotate270 => 8,
+        }
+    }
 }