docs: describe the quantomrange use in level_image

2020-04-21 09:09:59 +02:00
parent 36c145d4c4
commit fa563b8fb6
1 changed files with 2 additions and 0 deletions
--- a/src/wand/magick.rs
+++ b/src/wand/magick.rs
@ -251,6 +251,8 @@ impl MagickWand {
        }
    }

+    // Level an image. Black and white points are multiplied with QuantumRange to
+    // decrease dependencies on the end user.
    pub fn level_image(
        &self,
        black_point: f64,