Ignore alpha channel on comparisons.

diff --git a/mesademos.py b/mesademos.py
index 970c39375105022bae8cd4303b22f3d88015e6fd..2f6ef3db73bbd6efdb0cfb4ae6526344770655cc 100755 (executable)
--- a/mesademos.py
+++ b/mesademos.py
@@ -129,7 +129,7 @@ def runtest(demo):
     
     if image:
         delta_image = demo.replace('/', '-') + '.diff.png'
-        p = popen(["compare", '-metric', 'AE', '-fuzz', '5%', ref_image, image, delta_image])
+        p = popen(["compare", '-alpha', 'opaque', '-metric', 'AE', '-fuzz', '5%', ref_image, image, delta_image])
         _, stderr = p.communicate()