Yeah, I did copy it yesterday, but I still get this error: 

Too many arguments for substr at ./gif2hex.perl line 17, near "'')"
Execution of ./gif2hex.perl aborted due to compilation errors.

[download]

with today's code from your home node: 

#!/usr/bin/perl -w

# Description: Hex embedded images sample
# Date:        June 28, 2000
# Author:      bbq@zaz.com.br
# URL:         http://johnny.warp.psi.br/perl/images.pl?img=text

open IMG, "./arrow.gif"
       or die "Couldn't open image: $!\n";

binmode(IMG);
undef $/;
$image = <IMG>;
$hex = unpack("H*", $image);
close IMG;

while ($txt = substr($hex,0,32,'')) {
       print "'$txt'\n";
       }

# END

[download]

Thanks for you help - hope I'm not missing something obvious.
This is definately CUFP.
    ybiC

In reply to RE: (3) Hex Embedded Images (missing something obvious?) by ybiC
in thread Hex Embedded Images by BBQ

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.