Digital BW, The Print

Anthony G. Atkielski wrote:
> Ken Carney writes:
> 
> 
>>You are welcome.  BTW, I wouldn't save anything as a jpg.  Repeated saves of
>>a jpg image will result in a degraded image, as jpg is a "lossy"
>>compression.
> 
> 
> JPEG is generally fine for archiving, and it saves a tremendous amount
> of space.  You don't normally resave archived JPEGs over and over, so
> the lossy compression is not a factor (provided that you save the
> original archive image with minimal compression).
> 
> Alternatives are lossless formats like TIFF or PNG, but they are only
> practical if you have a great deal of space for archives.  I can only
> put one TIFF on a CD, for example, and with thousands of images at one
> image per CD, it gets impractical.  I would if I could, though.
> 
> 
>>Using uncompressed tif should work fine, or native Photoshop
>>format.
> 
> 
> PSDs are sometimes even larger than TIFFs.
> 

For archiving though, where you are not looking at the image on a 
regular basis, you can use other compression mechanisms.  For example if 
you can compress a 600MB file down to say 50MB for archiving, and then 
decompress it again later, who cares?  Even if it takes an hour to 
compress/decompress.

W