diff --git a/skimage/rank/tests/test_16bitbilateral.py b/skimage/rank/tests/demo_16bitbilateral.py
similarity index 100%
rename from skimage/rank/tests/test_16bitbilateral.py
rename to skimage/rank/tests/demo_16bitbilateral.py
diff --git a/skimage/rank/tests/demo_all.py b/skimage/rank/tests/demo_all.py
new file mode 100644
index 00000000..8001a25f
--- /dev/null
+++ b/skimage/rank/tests/demo_all.py
@@ -0,0 +1,24 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+from skimage import data
+from skimage.rank import crank8_percentiles
+from skimage.rank import crank16_bilateral
+
+if __name__ == '__main__':
+    a8 = (data.coins()).astype('uint8')
+
+    a16 = (data.coins()).astype('uint16')*16
+    selem = np.ones((20,20),dtype='uint8')
+    f1 = crank8_percentiles.mean(a8,selem = selem,p0=.1,p1=.9)
+    f2 = crank16_bilateral.mean(a16,selem = selem,bitdepth=12,s0=500,s1=500)
+
+    plt.figure()
+    plt.imshow(np.hstack((a8,f1)))
+    plt.colorbar()
+
+    plt.figure()
+    plt.imshow(np.hstack((a16,f2)))
+    plt.colorbar()
+
+    plt.show()
diff --git a/skimage/rank/tests/test_benchmark.py b/skimage/rank/tests/demo_benchmark.py
similarity index 100%
rename from skimage/rank/tests/test_benchmark.py
rename to skimage/rank/tests/demo_benchmark.py