OK, a follow up on this pack/unpack idea... After having embeded the image hex value into my script, the output seems somewhat garbled. Check it out for yourselves:

original image embeded image
The code generating the image for the embeded version is as follows:
#!/usr/bin/perl

print "Content-type: image/gif\n\n";
print Image();

sub Image {
  my $image;
  $image  = '4749463839610f001000a2ff00848684'
          . 'dfe0dfc6c7c6c0c0c000000000000000'
          . '000000000021f90401000003002c0000'
          . '00000f00100040034048baacf3608049'
          . 'a98824ca0aae78d9b375a4164a92470e'
          . '016a8dde10721c48dfc029ee528b0ac0'
          . 'e0671712';

  return(pack("H*",$image));
}

[download]
The hex was just copied and pasted into the code from the unpack script that generated it. I can't see a reason why it should look any different than the original. Mdillon was kind enough to a round-trip integrity check on pack/unpack, and nothing seems to be wrong on that part. I have exausted my ideas. Anyone care to take a stab at this one?

TIA

In reply to More on hex pack/unpack 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.