--- a/inst/@strel/strel.m
+++ b/inst/@strel/strel.m
@@ -21,7 +21,8 @@
 ## The structuring element can have any type of shape as specified by
 ## @var{shape}, each one with its @var{parameters}.
 ##
-## @deftypefnx {Function File} {} strel ("arbitrary", @var{nhood})
+## @end deftypefn
+## @deftypefn  {Function File} {} strel ("arbitrary", @var{nhood})
 ## @deftypefnx {Function File} {} strel ("arbitrary", @var{nhood}, @var{height})
 ## Create arbitrary shaped structuring elements.
 ##
@@ -45,65 +46,77 @@
 ## @end group
 ## @end example
 ##
-## @deftypefnx {Function File} {} strel ("ball", @var{radius}, @var{height})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("ball", @var{radius}, @var{height})
 ## Create ball shaped @var{nonflat} structuring element.  @var{radius} must be a
 ## nonnegative integer that specifies the ray of a circle in X-Y plane.  @var{height}
 ## is a real number that specifies the height of the center of the circle.
 ##
-## @deftypefnx {Function File} {} strel ("cube", @var{edge})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("cube", @var{edge})
 ## Create cube shaped @var{flat} structuring element.  @var{edge} must be a
 ## positive integer that specifies the length of its edges.  This shape meant to
 ## perform morphology operations in volumes, see the square shape for 2
 ## dimensional images.
 ##
-## @deftypefnx {Function File} {} strel ("diamond", @var{radius})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("diamond", @var{radius})
 ## Create diamond shaped flat structuring element.  @var{radius} must be a
 ## positive integer.
 ##
-## @deftypefnx {Function File} {} strel ("disk", @var{radius})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("disk", @var{radius})
 ## Create disk shaped flat structuring element.  @var{radius} must be a positive
 ## integer.
 ##
-## @deftypefnx {Function File} {} strel ("hypercube", @var{n}, @var{edge})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("hypercube", @var{n}, @var{edge})
 ## Create @var{n} dimensional cube (n-cube) shaped @var{flat} structuring
 ## element.  @var{edge} must be a positive integer that specifies the length
 ## of its edges.
 ##
-## @deftypefnx {Function File} {} strel ("hyperrectangle", @var{dimensions})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("hyperrectangle", @var{dimensions})
 ## Create @var{n} dimensional hyperrectangle (or orthotope) shaped flat
 ## structuring element.  @var{dimensions} must be a vector of positive
 ## integers with its lengtht at each of the dimensions.
-
-## @deftypefnx {Function File} {} strel ("line", @var{len}, @var{deg})
+##
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("line", @var{len}, @var{deg})
 ## Create line shaped flat structuring element.  @var{len} must be a positive
 ## real number.  @var{deg} must be a 1 or 2 elements real number, for a line in
 ## in 2D or 3D space.  The first element of @var{deg} is the angle from X-axis
 ## to X-Y projection of the line while the second is the angle from Z-axis to
 ## the line.
 ##
-## @deftypefnx {Function File} {} strel ("octagon", @var{apothem})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("octagon", @var{apothem})
 ## Create octagon shaped flat structuring element.  @var{apothem} must be a
 ## positive integer that specifies the distance from the origin to the sides of
 ## the octagon.
 ##
-## @deftypefnx {Function File} {} strel ("pair", @var{offset})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("pair", @var{offset})
 ## Create flat structuring element with two members.  One member is placed
 ## at the origin while the other is placed with @var{offset} in relation to the
 ## origin.  @var{offset} must then be a 2 element vector for the coordinates.
 ##
-## @deftypefnx {Function File} {} strel ("periodicline", @var{p}, @var{v})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("periodicline", @var{p}, @var{v})
 ## Create periodic line shaped flat structuring element.  A periodic line will
 ## be built with 2*@var{p}+1 points around the origin included. These points will
 ## be displaced in accordance with the offset @var{v} at distances: 1*@var{v},
 ## -1*@var{v}, 2*@var{v}, -2*@var{v}, ..., @var{p}*@var{v}, -@var{p}*@var{v}.
 ##   Therefore @var{v} must be a 2 element vector for the coordinates.
 ##
-## @deftypefnx {Function File} {} strel ("rectangle", @var{dimensions})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("rectangle", @var{dimensions})
 ## Create rectangular shaped flat structuring element.  @var{dimensions} must
 ## be a two element vector of positive integers with the number of rows and
 ## columns of the rectangle.
 ##
-## @deftypefnx {Function File} {} strel ("square", @var{edge})
+## @end deftypefn
+## @deftypefn {Function File} {} strel ("square", @var{edge})
 ## Create square shaped flat structuring element.  @var{edge} must be a positive
 ## integer that specifies the length of its edges.  For use in volumes, see the
 ## cube shape.

--- a/inst/colfilt.m
+++ b/inst/colfilt.m
@@ -2,17 +2,14 @@
 ## This program is granted to the public domain.
 
 ## -*- texinfo -*-
-## @deftypefn {Function File} colfilt(@var{A}, [@var{r}, @var{c}], [@var{m}, @var{n}], 'sliding', @var{f},@dots{})
+## @deftypefn  {Function File} {} colfilt (@var{A}, [@var{r} @var{c}], [@var{m} @var{n}], "sliding", @var{f}, @dots{})
+## @deftypefnx {Function File} {} colfilt (@var{A}, [@var{r} @var{c}], [@var{m} @var{n}], "sliding", @var{f}, @dots{})
+## @deftypefnx {Function File} {} colfilt (@var{A}, [@var{r} @var{c}], [@var{m} @var{n}], "sliding", @var{f}, @dots{})
 ## Apply filter to matrix blocks
 ##
 ##   For each @var{r} x @var{c} overlapping subblock of @var{A}, add a column in matrix @var{C}
 ##   @var{f}(@var{C},@dots{}) should return a row vector which is then reshaped into a
 ##   a matrix of size @var{A} and returned. @var{A} is processed in chunks of size @var{m} x @var{n}.
-## @deftypefnx{Function File} colfilt(@var{A}, [@var{r}, @var{c}], [@var{m}, @var{n}], 'distinct', @var{f},@dots{})
-##   For each @var{r} x @var{c} non-overlapping subblock of @var{A}, add a column in matrix @var{C}
-##   @var{f}(@var{C},@dots{}) should return a matrix of size @var{C} each column of which is
-##   placed back into the subblock from whence it came. @var{A} is processed
-##   in chunks of size @var{m} x @var{n}.
 ##
 ## The present version requires that [@var{m}, @var{n}] divide size(@var{A}), but for
 ## compatibility it should work even if [@var{m}, @var{n}] does not divide @var{A}. Use
@@ -25,9 +22,16 @@
 ## B = B(1:r,1:c);
 ## @end example
 ##
-## The present version does not handle 'distinct'
+## @seealso{bestblk, blockproc, col2im, im2col}
 ## @end deftypefn
 
+## FIXME: distinct is not yet implemented
+## @deftypefn {Function File} {} colfilt (@var{A}, [@var{r}, @var{c}], [@var{m}, @var{n}], 'distinct', @var{f},@dots{})
+##   For each @var{r} x @var{c} non-overlapping subblock of @var{A}, add a column in matrix @var{C}
+##   @var{f}(@var{C},@dots{}) should return a matrix of size @var{C} each column of which is
+##   placed back into the subblock from whence it came. @var{A} is processed
+##   in chunks of size @var{m} x @var{n}.
+
 function B = colfilt(A,filtsize,blksize,blktype,f,varargin)
    ## Input checking
    real_nargin = nargin - length(varargin);

--- a/inst/imnoise.m
+++ b/inst/imnoise.m
@@ -17,23 +17,27 @@
 ## this program; if not, see <http://www.gnu.org/licenses/>.
 
 ## -*- texinfo -*-
-## @deftypefn  {Function File} {@var{B} =} imnoise (@var{A}, @var{type})
-## @deftypefnx {Function File} {@var{B} =} imnoise (@dots{}, @var{options})
+## @deftypefn  {Function File} {} imnoise (@var{A}, @var{type})
+## @deftypefnx {Function File} {} imnoise (@dots{}, @var{options})
 ## Add noise to image.
 ##
-## @deftypefnx {Function File} {@var{B} =} imnoise (@var{A}, "gaussian", @var{mean}, @var{variance})
+## @end deftypefn
+## @deftypefn {Function File} {} imnoise (@var{A}, "gaussian", @var{mean}, @var{variance})
 ## Additive gaussian noise with @var{mean} and @var{variance} defaulting to 0
 ## and 0.01.
 ##
-## @deftypefnx {Function File} {@var{B} =} imnoise (@var{A}, "poisson")
+## @end deftypefn
+## @deftypefn {Function File} {} imnoise (@var{A}, "poisson")
 ## Creates poisson noise in the image using the intensity value of each pixel as
 ## mean.
 ##
-## @deftypefnx {Function File} {@var{B} =} imnoise (@var{A}, "salt & pepper", @var{density})
+## @end deftypefn
+## @deftypefn {Function File} {} imnoise (@var{A}, "salt & pepper", @var{density})
 ## Create "salt and pepper"/"lost pixels" in @var{density}*100 percent of the
 ## image.  @var{density} defaults to 0.05.
 ##
-## @deftypefnx {Function File} {@var{B} =} imnoise (@var{A}, "speckle", @var{variance})
+## @end deftypefn
+## @deftypefn {Function File} {} imnoise (@var{A}, "speckle", @var{variance})
 ## Multiplicative gaussian noise with @var{B} = @var{A} + @var{A} * noise with
 ## mean 0 and @var{variance} defaulting to 0.04.
 ##