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Message-ID: <4CED78AF.8040707@gmail.com>
Date: Wed, 24 Nov 2010 21:42:23 +0100
From: "=?UTF-8?B?w4FuZ2VsIEdvbnrDoWxleg==?=" <keisial@gmail.com>
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To: Damin <damin@emuxperts.net>
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Cc: ftpext@ietf.org
Subject: Re: [ftpext] draft-peterson-streamlined-ftp-command-extensions
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Damin wrote:
> I might also point out that there could be a big problem with this
> command. How do we know the aspect ratio of the original image? We
> can´t really specify an appropriate thumb size without knowing that
> information (stretchy images, anyone?). I think this can be solved
> with some appropriate commands.

Knowing the image size is much easier than knowing how to create a
thumbnail for it. Note that the library used for thumbnailing may
already take that into account.

When given the command "THMB PNG 20 40 foo.gif" a conformant could just
shell out executing "|convert |foo.gif|-resize 20x40 thumb.png|"


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    Damin wrote:<br>
    <blockquote
      cite="mid:AANLkTi=q1tFsjOHKZruoJF_0mjFTg8XemD6i9dOjJv6d@mail.gmail.com"
      type="cite">
      <div class="gmail_quote">I might also point out that there could
        be a big problem with this command. How do we know the aspect
        ratio of the original image? We can´t really specify an
        appropriate thumb size without knowing that information
        (stretchy images, anyone?). I think this can be solved with some
        appropriate commands.<br>
      </div>
    </blockquote>
    <br>
    Knowing the image size is much easier than knowing how to create a
    thumbnail for it. Note that the library used for thumbnailing may
    already take that into account.<br>
    <br>
    When given the command "THMB PNG 20 40 foo.gif" a conformant could
    just shell out executing "<code>convert </code>foo.gif<code>
      -resize 20x40 thumb.png</code>"<br>
    <br>
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