Image package, cp2tform documentation

[Evangelos Rozos]

The documentation of cp2tform 
(https://octave.sourceforge.io/image/function/cp2tform.html) has some 
errors.

In the affine transformation the following lines

in_cp = [out_cp ones(rows (out_cp,1))] * Tinv

out_cp = [in_cp ones(rows (in_cp,1))] * T

have two errors: i) 'rows' function takes only one argument, and ii) 
'ones' function takes two arguments. Furthermore, it would be more clear 
to replace Tinv and T with the full path. That is:

in_cp =  [out_cp ones(rows (out_cp) ,1)] * T.tdata.Tinv

out_cp=  [in_cp ones(rows (in_cp) ,1)] * T.tdata.T

The same problems exist in the projective transformation.

Also, Tinv should be replaced with the full path (i.e. T.tdata.Tinv) in 
the polynomial transformation too.

Regards

Evangelos Rozos