ColorMask
AssignAplha
Equalight
Grayscale
Colorize
Contrast
MirrorHorz
MirrorVert

@@ -138,6 +138,8 @@ Image ColorMask(const Image& src, Color key)
 			*t++ = *s;
 		s++;
 	}
+	ib.SetHotSpot(src.GetHotSpot());
+	ib.Set2ndSpot(src.Get2ndSpot());
 	return ib;
 }
 
@@ -586,6 +588,8 @@ Image MirrorHorz(const Image& img)
 			e--;
 		}
 	}
+	ib.SetHotSpot(img.GetHotSpot());
+	ib.Set2ndSpot(img.Get2ndSpot());
 	return ib;
 }
 
@@ -604,6 +608,8 @@ Image MirrorVert(const Image& img)
 			e++;
 		}
 	}
+	ib.SetHotSpot(img.GetHotSpot());
+	ib.Set2ndSpot(img.Get2ndSpot());
 	return ib;
 }