(IT IS A LONG POST)

TheOldDippinPete
unregistered posted 07-06-2001 02:38 PM
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Ok, I've search high and low for answer to this one, and have found myself here, yet again.
I've got about 1000 .jpg to go through and here is what I need to do in a hurry:

I need to look at the size of the jpg in terms of pixels and be able to change it and maintain aspect ratio. My biggest problem is that I've got images that are 275x200, say, and I need to make them 250x'whatever it takes to maintain ratio'.

Basically what I need is a thumb-nail type based piece of software that I can load in 40 or so of these thumbnails and by right clicking be able to make changes on the fly.

Sorry for the long post, but I'm lost on this one. I've looked at Corel Photo-Paint 8, Adobe Photo Deluxe BE, and bunch of others... Microsoft Picture It... and more... none of them do it without having to open the image and running through a bunch of menus, etc.

Thanks for the help.

Pete

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gorilla
Member posted 07-06-2001 02:44 PM
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If i've interpreted your posting correctly try here:
http://www.fookes.com/ezthumbs/index.html

otherewise pop along to

http://www.nonags.com

and see if you can find something there.

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Hope this helps :-)
Gorilla
aka Mark Saunders
http://www.computerdriving.com

Email Address: marksaunders@techie.com

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"Gotcha!" Cackled Pooh as he assimilated the Borg.

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TheOldDippinPete
unregistered posted 07-06-2001 03:18 PM
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Hmmm... I like that first prg a lot! So much so that I think I'm gonna use that one for the thumbnail creation from here on in!!
Any ideas on a prg that can change the pixel size(s) of the larger (non-thumb) on the fly? Sort of like that prg, but where I could make the "main" image smaller.

Pete

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TheOldDippinPete
unregistered posted 07-06-2001 03:36 PM
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Here's another question...
I've looked in the "Help"

But what's the algorhythms part all about? What setting do you use for what.

Pete

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gorilla
Member posted 07-06-2001 04:51 PM
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Algorithms are the series of steps a program goes through to accomplish its task. There's a whole series of them for file compression. Some are "lossy" (you lose some quality) some are lossless (you don't) or at least thats the claim.
The thing to do is to experiment with various settings and see which does what.

Turning to your second question there's nothing to stop you doing two passes.

thus if you had an image of say 500 * 500

You could bring it down to say 200 * 300 on the fist go and then rename the result and thumbnail it again.

That's what I do and it works fine for me.

BUT BUT BUT - if you do this for your first pass turn off the compression completely or you'll get very poor quality because 80% of 80% is 64% and 80% of 64% is 51.2% and so on.....

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Hope this helps :-)
Gorilla
aka Mark Saunders
http://www.computerdriving.com

Email Address: marksaunders@techie.com

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"Gotcha!" Cackled Pooh as he assimilated the Borg.

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TheOldDippinPete
unregistered posted 07-07-2001 08:25 AM
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Doh! Why didn't I think of that??
Guess I wasn't thinkin'

Thanks for the great algor. explanation. That is what I thought, on account I could see the image size (data size) go down and the pixels get a little "freaky"...

Which do you like? Or does it depend on the pic?

Anyhow, in the middle of doing all this I found:

www.mi2.si/miha/eng/ir.html

This is also an awesome freeware app!

Pete

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gorilla
Member posted 07-07-2001 09:27 AM
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LOL LOL LOL - if it's any consolation the person who suggested it to *me* was 8 years old at the time! What did I say?
I said "Doh - why didn't I think of that!"

As to which I prefer I really don't have a preference as such - it depends on the pic. By and large I've found that its defaults are pretty good.

One thing that I do do is to reduce the resolution for web photos to around 80 dpi (dots per inch) - pretty well any graphics program should do that for you. I read that 72 is actually fine but I stick to 80 just to be sure. Apparently the eye can't detect any big improvements in quality over 80 dpi - I tend to use very few graphics so don't take this as gospel - but it seems to work.

The moderators in the graphics forum are real experts on graphics so they'd probably be able to tell you the steps involved and possible likely savings of bandwith and disk space. If yuo do post such a question and get a reply - I'd love to know about it.

Regards and good luck.

Mark