Not having tried it but just looking at the examples in the GD.pm docs, they would seem to indicate setting $im equal to either (from your first example) GD::Image->newFromJpegData("d:\test\found.b64") or GD::Image->newFromJpegData(\*FILE).

Can you read a base-64 encoded JPEG, or do you have to unencode it first? (Just wondering aloud.)

Any more experienced monks have ideas/experience with this?

Hope this helps.

Update: In response to Steve_p 's comment in Re: newFromJpegData error about not being able to find the GD::Image->newFromJpegData() function, I looked back at the documentation for it at http://search.cpan.org/doc/LDS/GD-1.36/GD.pm , and found, in the section entitled "Object Constructors : Creating Images":

$image = GD::Image->newFromJpeg($file)
$image = GD::Image->newFromJpegData($data)
    These methods will create an image from a JPEG file. 
They work just like newFromPng() and newFromPngData(), and 
will accept the same filehandle and pathname arguments.

    Bear in mind that JPEG is a 24-bit format, while GD is 
8-bit. This means that photographic images will become 
posterized.

Thus being said, I find myself in error with the second assignment I offered above, which should read GD::Image->newFromJpeg(\*FILE) rather than my reference to GD::Image->newFromJpegData(). My appologies for any confusion I may have added.


In reply to Re: newFromJpegData error by atcroft
in thread newFromJpegData error by stormwolfen

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.