From 5a7a4bd0eae35d082deb6681c621aa2296f95e7f Mon Sep 17 00:00:00 2001
From: scuri <scuri>
Date: Wed, 5 Jun 2013 19:00:57 +0000
Subject: [PATCH] *** empty log message ***

---
 src/lua5/imlua_process.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/lua5/imlua_process.c b/src/lua5/imlua_process.c
index 0a1dcf5..80ce610 100644
--- a/src/lua5/imlua_process.c
+++ b/src/lua5/imlua_process.c
@@ -2242,8 +2242,9 @@ static int imluaProcessQuantizeGrayUniform (lua_State *L)
   int grays = luaL_checkint(L, 3);
 
   imlua_checktype(L, 1, src_image, IM_GRAY, IM_BYTE);
-  imlua_checktype(L, 2, dst_image, IM_GRAY, IM_BYTE);
-  imlua_match(L, src_image, dst_image);
+  if (dst_image->color_space!=IM_MAP)
+    imlua_checktype(L, 2, dst_image, IM_GRAY, IM_BYTE);
+  imlua_matchsize(L, src_image, dst_image);
 
   imProcessQuantizeGrayUniform(src_image, dst_image, grays);
   return 0;