From: José Fonseca <jose.r.fonseca@gmail.com>
Date: Fri, 3 Jun 2011 18:51:56 +0000 (+0100)
Subject: Remove dead ImageMagick's compare invocation code.
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;ds=sidebyside;h=3a136e8efe5314e941be751d4ddc7cedd79f4f0d;p=apitrace

Remove dead ImageMagick's compare invocation code.
---

diff --git a/scripts/snapdiff.py b/scripts/snapdiff.py
index fdef416..97fbeb8 100755
--- a/scripts/snapdiff.py
+++ b/scripts/snapdiff.py
@@ -44,22 +44,6 @@ import ImageEnhance
 thumb_size = 320, 320
 
 
-def _compare(ref_image, src_image, delta_image):
-    import subprocess
-    p = subprocess.Popen([
-        'compare', 
-        '-metric', 'AE', 
-        '-fuzz', '%u%%' % (100*options.fuzz,),
-        '-dissimilarity-threshold', '1',
-        ref_image, src_image, delta_image
-    ], stderr=subprocess.PIPE)
-    _, stderr = p.communicate()
-    try:
-        return int(stderr)
-    except ValueError:
-        return 0xffffffff
-
-
 def compare(ref_image, src_image, delta_image):
     ref_im = Image.open(ref_image)
     src_im = Image.open(src_image)
@@ -69,6 +53,7 @@ def compare(ref_image, src_image, delta_image):
 
     diff = ImageChops.difference(src_im, ref_im)
 
+    # make a difference image similar to ImageMagick's compare utility
     mask = ImageEnhance.Brightness(diff).enhance(1.0/options.fuzz)
     mask = mask.convert('L')