Usage

 tanh [-sn struct<integer> | 
       -s struct<string> | 
       -sb struct<string>]
    [-alpha alpha in nonlin. 
            transf.<real>] 
    [imagefile]

-s

Filter structure string, defined as a quad tree. See the module filtertree (CompileFiltStructTree) for a description of the structure.

-sb

Filterstructure string, defined as a binary tree. See the module filtertree (CompileFiltStructTreeFromBin) for a description of the structure.

-sn

Filter structure number, between 1 and 11 (default 4). See the module filtertree (BuildFiltStructTree) for a description of the structure.

-alpha

parameter in tanh(..) nonlinearity