explicit use of rgb2gray

datacarpentry · Dec 8, 2023 · c0e2929 · c0e2929
1 parent b569d0a
commit c0e2929
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/episodes/07-thresholding.md b/episodes/07-thresholding.md
@@ -228,7 +228,8 @@ you think would be a good value for the threshold `t`?
 The histogram for the `data/shapes-02.jpg` image can be shown with
 
 ```python
-gray_shapes = iio.imread(uri="data/shapes-02.jpg", mode="L")
+shapes = iio.imread(uri="data/shapes-02.jpg")
+gray_shapes = ski.color.rgb2gray(shapes)
 histogram, bin_edges = np.histogram(gray_shapes, bins=256, range=(0.0, 1.0))
 
 fig, ax = plt.subplots()