TMG-L ArchivesArchiver > TMG > 2008-07 > 1217275802
From: Darrell Martin <>
Subject: Re: [TMG] OT saving digital images TIFF vs JPEG
Date: Mon, 28 Jul 2008 15:10:02 -0500 (GMT-05:00)
You will get more responses, I'm sure, but in my opinion the most important piece of advice is this: Whatever else you do, and you will probably want to do a number of things, *ALWAYS* save every image you find the least bit interesting in its *ORIGINAL FORM*. For example, if your camera captured an image as a JPG, you cannot create any real information by saving it as a TIF, regardless of the advantages of that format. All you can do is INTERPRET the original. The interpretation may be clearer, or damage may be repaired; those are often useful things to do. But don't fool yourself into thinking the results are "more original", when they are not.
This does not mean you should avoid saving images in another format, as long as that new ones are not saved *INSTEAD* of the original. Also, note that digital copies are exact. A digital copy of an original digital file is for all practical purposes "the original".
Note: if a correspondent sends you an image and says it's a copy in a different format, but that's all there is, then consider what was sent to you as your original. That just means it is as close to the form in which it existed, when it was created, as you can get. If the opportunity arises, get closer, of course.
Anything you do to edit or process a copy of an original image can be repeated with another copy. But once the original is gone -- it's lost forever. Edited copies can be much better than nothing, but they include information that was not included when the image came into existence for the first time.
>From: Barbara Heard <>
>Sent: Jul 28, 2008 11:59 AM
> I have an off-topic question for you.
> A friend has recently reminded me that I should not save my digitized
>images as JPEG but should rather save them as TIFF. I remember hearing
>something about degradation of the image quality with JPEG.
Darrell A. Martin
a native Vermonter in exile in Illinois
|Re: [TMG] OT saving digital images TIFF vs JPEG by Darrell Martin <>|