Keep gcc -Wall happy.
diff --git a/Modules/imageop.c b/Modules/imageop.c
index 90e4f54..686d0c6 100644
--- a/Modules/imageop.c
+++ b/Modules/imageop.c
@@ -458,7 +458,7 @@
     int x, y, len, nlen;
     unsigned char *cp, *ncp;
     object *rv;
-    int i, pos, value, nvalue;
+    int i, pos, value = 0, nvalue;
     
     if ( !getargs(args, "(s#ii)", &cp, &len, &x, &y) )
       return 0;
@@ -495,7 +495,7 @@
     int x, y, len, nlen;
     unsigned char *cp, *ncp;
     object *rv;
-    int i, pos, value, nvalue;
+    int i, pos, value = 0, nvalue;
     
     if ( !getargs(args, "(s#ii)", &cp, &len, &x, &y) )
       return 0;