diff --git a/libvips/deprecated/mosaicing_dispatch.c b/libvips/deprecated/mosaicing_dispatch.c
index b8f7b121..bf7a6ed6 100644
--- a/libvips/deprecated/mosaicing_dispatch.c
+++ b/libvips/deprecated/mosaicing_dispatch.c
@@ -123,7 +123,7 @@ lrmosaic_vec( im_object *argv )
 	int balancetype = *((int *) argv[10]);
 	int mwidth = *((int *) argv[11]);
 
-	return( vips_lrmosaic( argv[0], argv[1], argv[2], 
+	return( vips__lrmosaic( argv[0], argv[1], argv[2], 
 		bandno, 
 		xr, yr, xs, ys, 
 		halfcorrelation, halfarea,
@@ -257,7 +257,7 @@ tbmosaic_vec( im_object *argv )
 	int balancetype = *((int *) argv[10]);
 	int mwidth = *((int *) argv[11]);
 
-	return( vips_tbmosaic( argv[0], argv[1], argv[2], 
+	return( vips__tbmosaic( argv[0], argv[1], argv[2], 
 		bandno, 
 		x1, y1, x2, y2, 
 		halfcorrelation, halfarea,
@@ -594,7 +594,7 @@ correl_vec( im_object *argv )
 	int *y = (int *) argv[9];
 	double *correlation = (double *) argv[10];
 
-	return( vips_correl( argv[0], argv[1], 
+	return( vips__correl( argv[0], argv[1], 
 		xref, yref, xsec, ysec, cor, area, correlation, x, y ) );
 }
 
diff --git a/libvips/include/vips/internal.h b/libvips/include/vips/internal.h
index 524097d8..84030580 100644
--- a/libvips/include/vips/internal.h
+++ b/libvips/include/vips/internal.h
@@ -276,30 +276,25 @@ VipsWindow *vips_window_take( VipsWindow *window,
 
 int vips__profile_set( VipsImage *image, const char *name );
 
-int vips_correl( VipsImage *ref, VipsImage *sec,
+int vips__lrmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out,
+	int bandno,
+	int xref, int yref, int xsec, int ysec,
+	int hwindowsize, int hsearchsize,
+	int balancetype,
+	int mwidth );
+
+int vips__tbmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out,
+	int bandno,
+	int xref, int yref, int xsec, int ysec,
+	int hwindowsize, int hsearchsize,
+	int balancetype,
+	int mwidth );
+
+int vips__correl( VipsImage *ref, VipsImage *sec, 
 	int xref, int yref, int xsec, int ysec,
 	int hwindowsize, int hsearchsize,
 	double *correlation, int *x, int *y );
 
-int vips_lrmerge( VipsImage *ref, VipsImage *sec, VipsImage *out,
-	int dx, int dy, int mwidth );
-int vips_tbmerge( VipsImage *ref, VipsImage *sec, VipsImage *out,
-	int dx, int dy, int mwidth );
-
-int vips_lrmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out,
-	int bandno,
-	int xref, int yref, int xsec, int ysec,
-	int hwindowsize, int hsearchsize,
-	int balancetype,
-	int mwidth );
-
-int vips_tbmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out,
-	int bandno,
-	int xref, int yref, int xsec, int ysec,
-	int hwindowsize, int hsearchsize,
-	int balancetype,
-	int mwidth );
-
 #ifdef __cplusplus
 }
 #endif /*__cplusplus*/
diff --git a/libvips/mosaicing/Makefile.am b/libvips/mosaicing/Makefile.am
index 9d7b4035..6e6420bf 100644
--- a/libvips/mosaicing/Makefile.am
+++ b/libvips/mosaicing/Makefile.am
@@ -6,20 +6,20 @@ libmosaicing_la_SOURCES = \
 	mosaic.c \
 	match.c \
 	mosaic1.c  \
+	chkpair.c \
 	matrixinvert.c \
 	global_balance.c \
 	lrmerge.c \
 	tbmerge.c \
+	lrmosaic.c \
+	tbmosaic.c \
+	remosaic.c \
 	im_avgdxdy.c \
-	im_chkpair.c \
 	im_clinear.c \
 	im_improve.c \
 	im_initialize.c \
 	im_lrcalcon.c \
-	im_lrmosaic.c \
 	im_tbcalcon.c \
-	im_remosaic.c \
-	im_tbmosaic.c \
 	global_balance.h \
 	pmosaicing.h
 
diff --git a/libvips/mosaicing/im_chkpair.c b/libvips/mosaicing/chkpair.c
similarity index 94%
rename from libvips/mosaicing/im_chkpair.c
rename to libvips/mosaicing/chkpair.c
index 5472f5d1..a7de1e8c 100644
--- a/libvips/mosaicing/im_chkpair.c
+++ b/libvips/mosaicing/chkpair.c
@@ -59,8 +59,7 @@
 
 #include "pmosaicing.h"
 
-/**
- * vips_correl:
+/* vips__correl:
  * @ref: reference image
  * @sec: secondary image
  * @xref: position in reference image
@@ -86,19 +85,19 @@
  * parts needed.  Correlation is done with vips_spcor(); the position of
  * the maximum is found with vips_max().
  * 
- * See also: vips_match(), vips_lrmosaic().
+ * See also: vips_match(), vips__lrmosaic().
  *
  * Returns: 0 on success, -1 on error
  */
 int 
-vips_correl( VipsImage *ref, VipsImage *sec, 
+vips__correl( VipsImage *ref, VipsImage *sec, 
 	int xref, int yref, int xsec, int ysec,
 	int hwindowsize, int hsearchsize,
 	double *correlation, int *x, int *y )
 {
 	VipsImage *surface = vips_image_new();
 	VipsImage **t = (VipsImage **)
-			vips_object_local_array( VIPS_OBJECT( surface ), 4 );
+		vips_object_local_array( VIPS_OBJECT( surface ), 4 );
 
 	VipsRect refr, secr;
 	VipsRect winr, srhr;
@@ -130,9 +129,11 @@ vips_correl( VipsImage *ref, VipsImage *sec,
 	/* Extract window and search area.
 	 */
 	if( vips_extract_area( ref, &t[0], 
-			wincr.left, wincr.top, wincr.width, wincr.height, NULL ) ||
+			wincr.left, wincr.top, wincr.width, wincr.height, 
+			NULL ) ||
 		vips_extract_area( sec, &t[1], 
-			srhcr.left, srhcr.top, srhcr.width, srhcr.height, NULL ) ) {
+			srhcr.left, srhcr.top, srhcr.width, srhcr.height, 
+			NULL ) ) {
 		g_object_unref( surface );
 		return( -1 );
 	}
@@ -205,7 +206,7 @@ vips__chkpair( VipsImage *ref, VipsImage *sec, TiePoints *points )
 	for( i = 0; i < points->nopoints; i++ ) {
 		/* Find correlation point.
 		 */
-		if( vips_correl( ref, sec, 
+		if( vips__correl( ref, sec, 
 			points->x_reference[i], points->y_reference[i],
 			points->x_reference[i], points->y_reference[i],
 			hcor, harea, 
diff --git a/libvips/mosaicing/im_lrmosaic.c b/libvips/mosaicing/lrmosaic.c
similarity index 99%
rename from libvips/mosaicing/im_lrmosaic.c
rename to libvips/mosaicing/lrmosaic.c
index 975a062e..8d736c2d 100644
--- a/libvips/mosaicing/im_lrmosaic.c
+++ b/libvips/mosaicing/lrmosaic.c
@@ -242,7 +242,7 @@ vips__find_lroverlap( VipsImage *ref_in, VipsImage *sec_in, VipsImage *out,
 }
 
 int 
-vips_lrmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out, 
+vips__lrmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out, 
 	int bandno, 
 	int xref, int yref, int xsec, int ysec, 
 	int hwindowsize, int hsearchsize,
diff --git a/libvips/mosaicing/match.c b/libvips/mosaicing/match.c
index 38821ebc..c56fa07e 100644
--- a/libvips/mosaicing/match.c
+++ b/libvips/mosaicing/match.c
@@ -128,7 +128,7 @@ vips_match_build( VipsObject *object )
 		int xs, ys;
 		double cor;
 
-		if( vips_correl( match->ref, match->sec, 
+		if( vips__correl( match->ref, match->sec, 
 			match->xr1, match->yr1, match->xs1, match->ys1,
 			match->hwindow, match->harea, 
 			&cor, &xs, &ys ) )
@@ -136,7 +136,7 @@ vips_match_build( VipsObject *object )
 		match->xs1 = xs;
 		match->ys1 = ys;
 
-		if( vips_correl( match->ref, match->sec, 
+		if( vips__correl( match->ref, match->sec, 
 			match->xr2, match->yr2, match->xs2, match->ys2,
 			match->hwindow, match->harea, 
 			&cor, &xs, &ys ) )
diff --git a/libvips/mosaicing/mosaic1.c b/libvips/mosaicing/mosaic1.c
index 379ed5ec..ddf9160e 100644
--- a/libvips/mosaicing/mosaic1.c
+++ b/libvips/mosaicing/mosaic1.c
@@ -275,11 +275,11 @@ rotjoin_search( VipsImage *ref, VipsImage *sec, VipsImage *out, joinfn jfn,
 	 * vips__transform_set_area() has set, and move the sec tie-points 
 	 * accordingly.
 	 */
-	if( vips_correl( t[0], t[2], xr1, yr1, 
+	if( vips__correl( t[0], t[2], xr1, yr1, 
 		xs3 - trn.oarea.left, ys3 - trn.oarea.top,
 		halfcorrelation, halfarea, &cor1, &xs5, &ys5 ) )
 		return( -1 );
-	if( vips_correl( t[0], t[2], xr2, yr2, 
+	if( vips__correl( t[0], t[2], xr2, yr2, 
 		xs4 - trn.oarea.left, ys4 - trn.oarea.top,
 		halfcorrelation, halfarea, &cor2, &xs6, &ys6 ) )
 		return( -1 );
diff --git a/libvips/mosaicing/mosaicing.c b/libvips/mosaicing/mosaicing.c
index 5689cb7e..6b1660b8 100644
--- a/libvips/mosaicing/mosaicing.c
+++ b/libvips/mosaicing/mosaicing.c
@@ -58,21 +58,17 @@
  *
  * The mosaicing functions can be grouped into layers:
  *
- * The lowest level functions are vips_correl() and vips_merge().
- * vips_correl() 
- * searches a large image for a small sub-image, returning
- * the position of the best sub-image match. vips_merge() 
+ * The lowest level operation is vips_merge()  which
  * joins two images together
  * left-right or up-down with a smooth seam.
  *
- * Next, vips_mosaic() use the
- * search function plus the two low-level merge operations to join two images 
+ * Next, vips_mosaic() uses
+ * search functions plus the two low-level merge operations to join two images 
  * given just an approximate overlap as a start point. 
  *
- * The functions vips_lrmosaic1() and vips_tbmosaic1() are
- * first-order
- * analogues of the basic mosaic functions: they take two approximate 
- * tie-points and use
+ * vips_mosaic1() is a first-order
+ * analogue of the basic mosaic functions: it takes two approximate 
+ * tie-points and uses
  * them to rotate and scale the right-hand or bottom image before starting to
  * join.
  *
diff --git a/libvips/mosaicing/pmosaicing.h b/libvips/mosaicing/pmosaicing.h
index adaf8457..2acbdeb5 100644
--- a/libvips/mosaicing/pmosaicing.h
+++ b/libvips/mosaicing/pmosaicing.h
@@ -122,10 +122,12 @@ void *vips__start_merge( VipsImage *out, void *, void * );
 int vips__merge_gen( VipsRegion *or, void *seq, void *a, void *,
 	gboolean *stop );
 int vips__stop_merge( void *seq, void *, void * );
+
 int vips__lrmerge( VipsImage *ref, VipsImage *sec, VipsImage *out, 
 	int dx, int dy, int mwidth );
 int vips__tbmerge( VipsImage *ref, VipsImage *sec, VipsImage *out, 
 	int dx, int dy, int mwidth );
+
 int vips__lrmerge1( VipsImage *ref, VipsImage *sec, VipsImage *out,
 	double a, double b, double dx, double dy, 
 	int mwidth );
@@ -133,6 +135,10 @@ int vips__tbmerge1( VipsImage *ref, VipsImage *sec, VipsImage *out,
 	double a, double b, double dx, double dy, 
 	int mwidth );
 
+int vips_correl( VipsImage *ref, VipsImage *sec,
+	int xref, int yref, int xsec, int ysec,
+	int hwindowsize, int hsearchsize,
+	double *correlation, int *x, int *y );
 
 #define VIPS_MAXPOINTS (60)	/* VIPS_MAXPOINTS % AREAS must be zero */
 #define AREAS (3)	
diff --git a/libvips/mosaicing/im_remosaic.c b/libvips/mosaicing/remosaic.c
similarity index 100%
rename from libvips/mosaicing/im_remosaic.c
rename to libvips/mosaicing/remosaic.c
diff --git a/libvips/mosaicing/im_tbmosaic.c b/libvips/mosaicing/tbmosaic.c
similarity index 99%
rename from libvips/mosaicing/im_tbmosaic.c
rename to libvips/mosaicing/tbmosaic.c
index 2d3a85ee..dac7b7a8 100644
--- a/libvips/mosaicing/im_tbmosaic.c
+++ b/libvips/mosaicing/tbmosaic.c
@@ -213,7 +213,7 @@ vips__find_tboverlap( VipsImage *ref_in, VipsImage *sec_in, VipsImage *out,
 }
 
 int 
-vips_tbmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out, 
+vips__tbmosaic( VipsImage *ref, VipsImage *sec, VipsImage *out, 
 	int bandno,
 	int xref, int yref, int xsec, int ysec, 
 	int hwindowsize, int hsearchsize,
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 2b1843eb..c3dc94dc 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -349,25 +349,25 @@ libvips/morphology/morph.c
 libvips/morphology/morphology.c
 libvips/morphology/nearest.c
 libvips/morphology/rank.c
+libvips/mosaicing/chkpair.c
 libvips/mosaicing/global_balance.c
 libvips/mosaicing/im_avgdxdy.c
-libvips/mosaicing/im_chkpair.c
 libvips/mosaicing/im_clinear.c
 libvips/mosaicing/im_improve.c
 libvips/mosaicing/im_initialize.c
 libvips/mosaicing/im_lrcalcon.c
-libvips/mosaicing/im_lrmerge.c
-libvips/mosaicing/im_lrmosaic.c
-libvips/mosaicing/im_remosaic.c
 libvips/mosaicing/im_tbcalcon.c
-libvips/mosaicing/im_tbmerge.c
-libvips/mosaicing/im_tbmosaic.c
+libvips/mosaicing/lrmerge.c
+libvips/mosaicing/lrmosaic.c
 libvips/mosaicing/match.c
 libvips/mosaicing/matrixinvert.c
 libvips/mosaicing/merge.c
 libvips/mosaicing/mosaic1.c
 libvips/mosaicing/mosaic.c
 libvips/mosaicing/mosaicing.c
+libvips/mosaicing/remosaic.c
+libvips/mosaicing/tbmerge.c
+libvips/mosaicing/tbmosaic.c
 libvips/resample/affine.c
 libvips/resample/bicubic.cpp
 libvips/resample/interpolate.c