Yahoo Groups archive

Digital BW, The Print

Index last updated: 2026-04-28 22:56 UTC

Message

Re: [Digital BW] Re: lossless archiving - GF vs MrSID

2001-08-27 by Mark Crabtree

>Hi Jerry,
>
>I wasn't aware of the MrSID product. From the looks of the Lizartech site,
>Genuine Fractals is toast! If you do get it, would you do a side by side
>test and
>let us know how the two compare?
>
>Thanks for bringing this to our attention here.
>
>Antonis

I thought MrSID was only a compression program and that the resizing was
only up to the original file size, but I really haven't checked it out
thoroughly. I also did not know it was lossless.

Nonetheless it is amazing. A great place to check it out is the online
Library of Congress Panoramic Maps Collection (part of their American
Memory site).
http://memory.loc.gov/ammem/pmhtml/panhome.html

These maps are available for free download in the MrSID format. I
downloaded a map of my town and got the MrSID viewer, plug-in, or whatever
the free download is. I was stunned when the little file opened up in
Photoshop at a high resolution at full size (and in RGB). I converted to
greyscale and did a lot of restoration, then printed out with Piezography.
I just wish I had a larger printer than the 1160 for this one. I did print
the legend seperately so that I could go full width on the 1160 with the
map portion.

Several people continually sell prints of these files on eBay (to the
consternation of the Library).

Mark

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.