diff --git a/ILImage.h b/ILImage.h
index 4733a87..0ef03e1 100644
--- a/ILImage.h
+++ b/ILImage.h
@@ -12,6 +12,8 @@ class ILImage
 
     uint channel_count;
 
+    void Refresh();
+
 private:
 
     bool Convert(ILuint,ILuint);
@@ -36,11 +38,13 @@ public:
 public:
 
     ILImage();
+    ILImage(ILImage *);
     ~ILImage();
 
     bool LoadFile(const OSString &);
 
     void Bind();
+    void Copy(ILImage *);
 
     bool Resize(uint,uint);
 
diff --git a/ILImageSupport.cpp b/ILImageSupport.cpp
index d945b16..f7cf9b5 100644
--- a/ILImageSupport.cpp
+++ b/ILImageSupport.cpp
@@ -52,11 +52,72 @@ ILImage::ILImage()
     ilGenImages(1,&il_index);
 }
 
+ILImage::ILImage(ILImage *img):ILImage()
+{
+    ilGenImages(1,&il_index);
+    Bind();
+    ilCopyImage(img->il_index);
+    Refresh();
+}
+
 ILImage::~ILImage()
 {
     ilDeleteImages(1,&il_index);
 }
 
+void ILImage::Copy(ILImage *img)
+{
+    ilCopyImage(img->il_index);
+    Refresh();
+}
+
+void ILImage::Refresh()
+{
+    il_width	=ilGetInteger(IL_IMAGE_WIDTH);
+    il_height	=ilGetInteger(IL_IMAGE_HEIGHT);
+    il_depth    =ilGetInteger(IL_IMAGE_DEPTH);
+    il_bit		=ilGetInteger(IL_IMAGE_BITS_PER_PIXEL);
+    il_format	=ilGetInteger(IL_IMAGE_FORMAT);
+    il_type	    =ilGetInteger(IL_IMAGE_TYPE);
+
+    if(ilGetInteger(IL_IMAGE_ORIGIN)==IL_ORIGIN_LOWER_LEFT)
+        iluFlipImage();
+
+    if(il_format==IL_COLOR_INDEX)
+    {
+        uint il_pattle=ilGetInteger(IL_PALETTE_TYPE);
+
+        if(il_pattle==IL_PAL_RGB24||il_pattle==IL_PAL_BGR24
+         ||il_pattle==IL_PAL_RGB32||il_pattle==IL_PAL_BGR32)
+        {
+            channel_count=3;
+            il_format=IL_RGB;
+            il_type=IL_UNSIGNED_BYTE;
+            ilConvertImage(il_format,il_type);
+        }
+        else
+        if(il_pattle==IL_PAL_RGBA32||il_pattle==IL_PAL_BGRA32)
+        {
+            channel_count=4;
+            il_format=IL_RGBA;
+            il_type=IL_UNSIGNED_BYTE;
+            ilConvertImage(il_format,il_type);
+        }
+        else
+        {
+            LOG_ERROR("Don't support the pattle format.");
+        }
+    }
+
+    il_bit		=ilGetInteger(IL_IMAGE_BITS_PER_PIXEL);
+    
+    if(il_format==IL_LUMINANCE||il_format==IL_ALPHA)channel_count=1;else
+    if(il_format==IL_LUMINANCE_ALPHA)               channel_count=2;else
+    if(il_format==IL_RGB||il_format==IL_BGR)        channel_count=3;else
+    if(il_format==IL_RGBA||il_format==IL_BGRA)      channel_count=4;else
+        channel_count=0;
+}
+
 constexpr ILenum format_by_channel[]=
 {
 	IL_LUMINANCE,
@@ -154,15 +215,7 @@ bool ILImage::LoadFile(const OSString &filename)
 
     LOG_INFO(OS_TEXT("\nFile: ")+filename);
 
-    il_width	=ilGetInteger(IL_IMAGE_WIDTH);
-    il_height	=ilGetInteger(IL_IMAGE_HEIGHT);
-    il_depth    =ilGetInteger(IL_IMAGE_DEPTH);
-    il_bit		=ilGetInteger(IL_IMAGE_BITS_PER_PIXEL);
-    il_format	=ilGetInteger(IL_IMAGE_FORMAT);
-    il_type	    =ilGetInteger(IL_IMAGE_TYPE);
-
-    if(ilGetInteger(IL_IMAGE_ORIGIN)==IL_ORIGIN_LOWER_LEFT)
-        iluFlipImage();
+    Refresh();
 
     LOG_INFO(OS_TEXT("\t width: ")+OSString::valueOf(il_width));
     LOG_INFO(OS_TEXT("\theight: ")+OSString::valueOf(il_height));
@@ -171,41 +224,6 @@ bool ILImage::LoadFile(const OSString &filename)
     LOG_INFO(OS_TEXT("\tformat: ")+GetILFormatName(il_format));
     LOG_INFO(OS_TEXT("\t  type: ")+GetILTypeName(il_type));
 
-    if(il_format==IL_COLOR_INDEX)
-    {
-        uint il_pattle=ilGetInteger(IL_PALETTE_TYPE);
-
-        if(il_pattle==IL_PAL_RGB24||il_pattle==IL_PAL_BGR24
-         ||il_pattle==IL_PAL_RGB32||il_pattle==IL_PAL_BGR32)
-        {
-            channel_count=3;
-            il_format=IL_RGB;
-            il_type=IL_UNSIGNED_BYTE;
-            ilConvertImage(il_format,il_type);
-            return(true);
-        }
-        else
-        if(il_pattle==IL_PAL_RGBA32||il_pattle==IL_PAL_BGRA32)
-        {
-            channel_count=4;
-            il_format=IL_RGBA;
-            il_type=IL_UNSIGNED_BYTE;
-            ilConvertImage(il_format,il_type);
-            return(true);
-        }
-        else
-        {
-            LOG_ERROR("Don't support the pattle format.");
-            return(false);
-        }
-    }
-    
-    if(il_format==IL_LUMINANCE||il_format==IL_ALPHA)channel_count=1;else
-    if(il_format==IL_LUMINANCE_ALPHA)               channel_count=2;else
-    if(il_format==IL_RGB||il_format==IL_BGR)        channel_count=3;else
-    if(il_format==IL_RGBA||il_format==IL_BGRA)      channel_count=4;else
-        channel_count=0;
-
     return(true);    
 }