I think he already has the best solution.  Store two images.  How many
thumbnails are there on a page?  At 1-2 seconds per image to resize how
long will you make every visitor wait to see the thumbnails?

Disk space is cheap.  If you have to buy another drive - no big deal.  I
don't know about you, but for me if a web page doesn't load in about 10-15
seconds I'm outa here!


** Reply to note from Miguel Cruz <[EMAIL PROTECTED]> Sat, 27 Apr 2002 11:36:54 -0500 (CDT)
> On Sat, 27 Apr 2002, Ray Paseur 703.346.0600 wrote:
> > I am storing several detailed images at about 400x400 pixels (inventory
> > for an art gallery).  I show a page with thumbnails of the images.  When
> > a site visitor clicks on a thumbnail, I open a separate window to
> > display the detailed image.
> >
> > Presently I am storing two copies of each image - full size and thumb.
> >
> > My objective is to store only one copy of each image - full size.  (The
> > rationale behind this is a complicated story involving old gallery
> > owners, digital cameras, rudimentary image editing skills, etc.)
> >
> > I want the server to read the full size image, but resize it down to the
> > thumbnail size before sending it, thus saving transmission time.
> >
> > Are there any server-side applications that can handle this?
> You could use ImageMagick (particularly, the 'convert' program) to do this
> but decent results are not fast (not that it'll take several seconds or
> anything, but it does take a certain amount of time, and everything adds
> up).
> If you want to do this on the fly, I'd suggest having it save the
> thumbnails when they're generated so that the next time someone comes, it
> doesn't have to go through the process again.
> miguel
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Rick Widmer
Internet Marketing Specialists

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