--- a/XBMReader.st	Thu Oct 11 18:32:49 2001 +0200
+++ b/XBMReader.st	Tue Oct 16 13:25:48 2001 +0200
@@ -73,17 +73,18 @@
 
     |photometric clr0 clr1|
 
-    (anImage depth ~~ 1) ifTrue:[^ false.].
-
-    photometric := anImage photometric.
-    ((photometric == #blackIs0) or:[photometric == #whiteIs0]) ifTrue:[^ true].
+    (anImage depth == 1) ifTrue:[
+        photometric := anImage photometric.
+        ((photometric == #blackIs0) or:[photometric == #whiteIs0]) ifTrue:[^ true].
 
-    photometric == #palette ifTrue:[
-        clr0 := anImage colorFromValue:0.
-        clr1 := anImage colorFromValue:1.
-        (clr0 = Color white and:[clr1 = Color black]) ifTrue:[^true].
-        (clr1 = Color white and:[clr0 = Color black]) ifTrue:[^true].
+        photometric == #palette ifTrue:[
+            clr0 := anImage colorFromValue:0.
+            clr1 := anImage colorFromValue:1.
+            (clr0 = Color white and:[clr1 = Color black]) ifTrue:[^true].
+            (clr1 = Color white and:[clr0 = Color black]) ifTrue:[^true].
+        ].
     ].
+    Transcript showCR:'XBMReader: not a b&w image.'.
     ^ false
 
     "Modified: / 17.8.1998 / 10:17:01 / cg"
@@ -363,6 +364,6 @@
 !XBMReader class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libview2/XBMReader.st,v 1.44 2001-09-21 08:02:25 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libview2/XBMReader.st,v 1.45 2001-10-16 11:25:48 cg Exp $'
 ! !
 XBMReader initialize!