<div>That Post, and Justin's comment, were written before WordPress 2.9 was even released. The comment to which you refer should hardly be taken as gospel now, a full year hence.</div><div><br></div>Resizing and cropping are handled just fine by the WordPress core functionality. If you need to regenerate previous Thumbnail sizes, try the <a href="http://wordpress.org/extend/plugins/regenerate-thumbnails/">Regenerate Thumbnails</a> plugin. I can attest that it works just fine, as I often have to use it when changing from Theme to Theme for reviews.<div>
<br></div><div>FYI, <a href="http://markjaquith.wordpress.com/2009/12/23/new-in-wordpress-2-9-post-thumbnail-images/">this post by Mark Jaquith</a>, also linked from that same Codex page, is considerably more instructive for your custom-thumbnail-size needs.<br>
<div><br></div><div>Chip<br><br><div class="gmail_quote">On Tue, Nov 9, 2010 at 6:22 AM, Satish Gandham <span dir="ltr"><<a href="mailto:satish.iitg@gmail.com">satish.iitg@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
This what <cite title="http://justintadlock.com"></cite><a href="http://justintadlock.com/" title="Justin Tadlock" rel="external nofollow" target="_blank">Justin Tadlock</a> said in his blog post given as external resource on this page<br>
<a href="http://codex.wordpress.org/Function_Reference/the_post_thumbnail" target="_blank">http://codex.wordpress.org/Function_Reference/the_post_thumbnail</a><br><br><blockquote>Yep, <b>the resizing and cropping is definitely best done by TimThumb </b>at
the moment. The only alternate solution to that would be for a theme
to set its own intermediate image sizes and have a button for users to
click to generate those from old attachments. I’m not sure how feasible
it is to do this, but it’s something I plan on looking into.</blockquote><blockquote><p>Personally, I’ll probably keep using custom fields and the Get the
Image script.</p></blockquote>
<br><a href="http://justintadlock.com/archives/2009/11/16/everything-you-need-to-know-about-wordpress-2-9s-post-image-feature#comment-162754" target="_blank">http://justintadlock.com/archives/2009/11/16/everything-you-need-to-know-about-wordpress-2-9s-post-image-feature#comment-162754</a>
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