snapdiff: Add option to consider alpha when comparing images.
diff --git a/scripts/snapdiff.py b/scripts/snapdiff.py
index 857c0df..b7bad72 100755
--- a/scripts/snapdiff.py
+++ b/scripts/snapdiff.py
@@ -158,9 +158,13 @@
type="float", dest="fuzz", default=0.05,
help="fuzz ratio [default: %default]")
optparser.add_option(
+ '-a', '--alpha',
+ action="store_true", dest="alpha", default=False,
+ help="take alpha channel in consideration")
+ optparser.add_option(
'--overwrite',
action="store_true", dest="overwrite", default=False,
- help="overwrite")
+ help="overwrite images")
(options, args) = optparser.parse_args(sys.argv[1:])
@@ -194,7 +198,7 @@
or (os.path.getmtime(delta_image) < os.path.getmtime(ref_image) \
and os.path.getmtime(delta_image) < os.path.getmtime(src_image)):
- comparer = Comparer(ref_image, src_image)
+ comparer = Comparer(ref_image, src_image, options.alpha)
comparer.write_diff(delta_image, fuzz=options.fuzz)
html.write(' <tr>\n')