Mercurial > octave

diff scripts/image/brighten.m @ 11469:c776f063fefe

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Overhaul m-script files to use common variable name between code and documentation.
author Rik <octave@nomad.inbox5.com>
date Sun, 09 Jan 2011 12:41:21 -0800
parents be55736a0783
children 1740012184f9
line wrap: on
line diff
--- a/scripts/image/brighten.m	Sun Jan 09 21:24:43 2011 +0100
+++ b/scripts/image/brighten.m	Sun Jan 09 12:41:21 2011 -0800
@@ -34,17 +34,19 @@
 ## @seealso{colormap}
 ## @end deftypefn
 
-function Rmap = brighten (m, beta)
+function rmap = brighten (arg1, beta)
   h = -1;
   if (nargin == 1)
-    beta = m;
+    beta = arg1;
     m = colormap;
     h = gcf ();
   elseif (nargin == 2)
-    if (ishandle (m))
-      h = m;
+    if (ishandle (arg1))
+      h = arg1;
       m = get (h, "colormap");
-    elseif (! ismatrix (m) || size (m, 2) != 3)
+    elseif (ismatrix (arg1) && columns (arg1) == 3)
+      m = arg1;
+    else
       error ("brighten: first argument must be an Nx3 matrix or a handle");
     endif
   else
@@ -68,7 +70,7 @@
       colormap (m .^ gamma);
     endif
   else
-    Rmap = m .^ gamma;
+    rmap = m .^ gamma;
   endif
 
 endfunction