--- a/Image.st	Fri Nov 14 15:46:11 2014 +0100
+++ b/Image.st	Sat Nov 15 16:57:13 2014 +0100
@@ -4272,9 +4272,9 @@
 asGrayImageDepth:depth
     "get a gray image from the receiver"
 
-    ((self colorMap notNil and:[depth == self depth])
+    ((self colorMap notNil and:[depth <= 8 and:[depth >= self depth]])
     or:[ self depth >= 8 "do need for dither" ]) ifTrue:[
-	^ self copyWithColorMapProcessing:[:clr | Color brightness:(clr brightness)].
+        ^ self copyWithColorMapProcessing:[:clr | Color brightness:(clr brightness)].
     ].
     ^ self asGrayImageDepth:depth dither:DitherAlgorithm.
 
@@ -14441,11 +14441,11 @@
 !Image class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.459 2014-11-10 22:24:12 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.460 2014-11-15 15:57:13 cg Exp $'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.459 2014-11-10 22:24:12 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.460 2014-11-15 15:57:13 cg Exp $'
 ! !