i have found some solution, inspired by many posts especially a message with a title "imag2d.pdl for test" :
http://mailman.jach.hawaii.edu/pipermail/perldl/2009-December/002665.html and
http://mailman.jach.hawaii.edu/pipermail/perldl/2010-January/002716.html
we need a file "imag2d.pdl" not in the pdl package, and to use PDL::AutoLoader, as explained in the above message so putting the file imag2d.pdl in the same folder as the following code can run successfully the code with a red dusk like image. i run the code in windows xp activestate perl 5.10
use PDL;
use PGPLOT;
use PDL::Graphics2D; #imports imag2d() and twiddle()
use PDL::AutoLoader;
our @PDLLIB;
push @PDLLIB, '.';

my $winopt = {Device => '/GW', WindowWidth => 7, Aspect => 1}; 
my $w = PDL::Graphics2D->new('PGPLOT'); 
  $a = sequence(64,48,3);  # make test RGB image
  $a = $a->mv(2,0);        # color must be dim(0) with size [0..4]
  $a /= $a->max;           # pixel values in [0.0,1.0]
  $a = sin(10*$a);
  imag2d($a);

[download]

there may be more improvements, thanks for all

In reply to Re^4: PDL questions by Anonymous Monk
in thread PDL questions by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.