Fix return value of deprecated equalize function.

doc/examples/plot_equalize.py

@@ -19,7 +19,6 @@ that fall within the 2nd and 98th percentiles [2]_.
 """
 
 from skimage import data, img_as_float
-from skimage.util.dtype import dtype_range
 from skimage import exposure
 
 import matplotlib.pyplot as plt

doc/examples/plot_local_equalize.py

@@ -57,7 +57,7 @@ img = data.moon()
 # Contrast stretching
 p2 = np.percentile(img, 2)
 p98 = np.percentile(img, 98)
-img_rescale = exposure.equalize(img)
+img_rescale = exposure.equalize_hist(img)
 
 # Equalization
 selem = disk(30)

skimage/exposure/exposure.py

@@ -81,7 +81,7 @@ def cumulative_distribution(image, nbins=256):
 
 @deprecated('equalize_hist')
 def equalize(image, nbins=256):
-    equalize_hist(image, nbins)
+    return equalize_hist(image, nbins)
 
 
 def equalize_hist(image, nbins=256):