DOC: Change more examples to use image_label2rgb

doc/examples/plot_label.py

@@ -21,6 +21,7 @@ from skimage.filter import threshold_otsu
 from skimage.segmentation import clear_border
 from skimage.morphology import label, closing, square
 from skimage.measure import regionprops
+from skimage.color import image_label2rgb
 
 
 image = data.coins()[50:-50, 50:-50]
@@ -37,9 +38,10 @@ clear_border(cleared)
 label_image = label(cleared)
 borders = np.logical_xor(bw, cleared)
 label_image[borders] = -1
+image_label_overlay = image_label2rgb(image, label_image)
 
 fig, ax = plt.subplots(ncols=1, nrows=1, figsize=(6, 6))
-ax.imshow(label_image, cmap='jet')
+ax.imshow(image_label_overlay)
 
 for region in regionprops(label_image, ['Area', 'BoundingBox']):