diff --git a/source/blender/imbuf/IMB_imbuf.h b/source/blender/imbuf/IMB_imbuf.h
index 777c56972ea..7f7b2b08a56 100644
--- a/source/blender/imbuf/IMB_imbuf.h
+++ b/source/blender/imbuf/IMB_imbuf.h
@@ -118,12 +118,6 @@ struct ImBuf;
  */
 struct anim;
 
-/**
- *
- * @attention Defined in cmap.c
- */
-void cspace(struct ImBuf *ibuf, float mat[][4]);
-
 /**
  *
  * @attention Defined in cmap.c
@@ -166,12 +160,6 @@ struct ImBuf *IMB_testiffname(char *naam,int flags);
  */
 struct ImBuf *IMB_loadiffname(char *naam, int flags);
 
-/**
- *
- * @attention Defined in readimage.c
- */
-void freezbufImBuf(struct ImBuf * ibuf);
-
 /**
  *
  * @attention Defined in allocimbuf.c
@@ -196,7 +184,7 @@ struct ImBuf *IMB_dupImBuf(struct ImBuf *ibuf1);
  *
  * @attention Defined in allocimbuf.c
  */
-short IMB_addzbufImBuf(struct ImBuf * ibuf);
+short addzbufImBuf(struct ImBuf * ibuf);
 
 /**
  *
@@ -491,12 +479,6 @@ extern float rgb_to_bw[4][4];
  */
 void IMB_flipy(struct ImBuf * ibuf);
 
-/**
- *
- * @attention Defined in anim.c
- */
-void IMB_init_movie_pointers(void);
-
 /**
  *
  * @attention Defined in cspace.c