diff --git a/MagickCore/cache.c b/MagickCore/cache.c
index 026bdaf..2034e3d 100644
--- a/MagickCore/cache.c
+++ b/MagickCore/cache.c
@@ -1191,13 +1191,22 @@
static MagickBooleanType ClonePixelCachePixels(CacheInfo *clone_info,
CacheInfo *cache_info,ExceptionInfo *exception)
{
+ PixelChannelMap
+ *p,
+ *q;
+
if (cache_info->type == PingCache)
return(MagickTrue);
+ p=cache_info->channel_map;
+ q=clone_info->channel_map;
if ((cache_info->columns == clone_info->columns) &&
(cache_info->rows == clone_info->rows) &&
(cache_info->number_channels == clone_info->number_channels) &&
+ (memcmp(p,q,cache_info->number_channels*sizeof(*p)) == 0) &&
(cache_info->metacontent_extent == clone_info->metacontent_extent))
return(OptimizedPixelCacheClone(clone_info,cache_info,exception));
+ if (memcmp(p,q,cache_info->number_channels*sizeof(*p)) != 0)
+ ;
return(UnoptimizedPixelCacheClone(clone_info,cache_info,exception));
}
@@ -4005,6 +4014,8 @@
cache_info->columns=image->columns;
InitializePixelChannelMap(image);
cache_info->number_channels=GetPixelChannels(image);
+ (void) memcpy(cache_info->channel_map,image->channel_map,
+ cache_info->number_channels*sizeof(*image->channel_map));
cache_info->metacontent_extent=image->metacontent_extent;
cache_info->mode=mode;
if (image->ping != MagickFalse)