1 files changed, 11 insertions, 0 deletions
diff --git a/evc/src/pixel.rs b/evc/src/pixel.rs
index adeaf84..559dedc 100644
--- a/evc/src/pixel.rs
+++ b/evc/src/pixel.rs
@@ -17,3 +17,14 @@ impl Ser for Pixel {
         Ok(Self { r, g, b })
     }
 }
+
+impl Pixel {
+    pub fn distance(a: Pixel, b: Pixel) -> f64 {
+        let (rd, gd, bd) = (
+            a.r.abs_diff(b.r) as f64,
+            a.r.abs_diff(b.r) as f64,
+            a.r.abs_diff(b.r) as f64,
+        );
+        (rd * rd + gd * gd + bd * bd).sqrt()
+    }
+}