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diff --git a/utilities/compare.1 b/utilities/compare.1
index 2f3165ec1be47774b735a1c9929cf2be45c09a90..95a22d195b56ec18fa4cb29f4636a21d46a54ccc 100644 (file)
--- a/utilities/compare.1
+++ b/utilities/compare.1
@@ -97,8 +97,7 @@ Miscellaneous Options:
 
 By default, the image format of `file' is determined by its magic number.  To specify a particular image format, precede the filename with an image format name and a colon (i.e. ps:image) or specify the image type as the filename suffix (i.e. image.ps).  Specify 'file' as '-' for standard input or output.
 
-The compare program returns 2 on error otherwise 0 if the images are similar or
-1 if they are dissimilar.
+The compare program returns 2 on error otherwise 0 if the images are similar or 1 if they are dissimilar as defined by the metric and fuzz.  The normalized cross correlation error metric is an exception. For this metric, 1 is interpreted as two identical images.
 .SH SEE ALSO
 ImageMagick(1)