Our University's Special Collections department currently uses our DSpace installation as the digital archive. As many of the image materials have commercial value and are frequently requested, Special Collections currently deposits a low-resolution version of the digital image into the archive. This, in my opinion, isn't using the archive in a permanent fashion and is more or less missing the point of the archive in the first place. However, I understand their reservation at wanting to make valuable material freely available.
I think the most straightforward solution (in terms of watermarking) would be to be able to select whether or not an image would be watermarked during the submission phase (in the same fashion as whether or not an ETD is embargoed, after adding on that code). When that image would be accessed by anyone it would be displayed with a visible watermark. However, I would like this to take place on-the- fly, meaning the image was stored without a watermark. This is technically feasible, but I'm not sure how it would be integrated into the DSpace code. Shane Beers Digital Repository Services Librarian George Mason University [EMAIL PROTECTED] 703-993-3742 On Jan 10, 2008, at 8:04 AM, John S. Erickson wrote: > What are you trying to achieve? > > * Are you looking for visible or invisible watermarks (steganography, > ala Digimarc et.al.)? > > * Are you looking to have on-the-fly information embedded? On a per- > user > basis? > > * If "yes," how do you plan to keep track of that information? And if > "yes" to the latter, have you considered the privacy implications? > > All that being said, the practice of visible watermarking is quite > common and seems to be a default for the "proofing" interfaces of > various online photography services (the people that take photos at > equestiran events, running races, etc). Be careful, however, because > you > can't claim copyright on that which you don't have copyright, and a > watermark can be interpreted as such a claim (why else would you have > one?). > > Note that you will probably need to pay licensing fees for invisible > watermarking technology that (a) works and (b) doesn't violate > patents. > I can't say what does and doesn't violate patents (that's by > definition > for a judge to decide) but that is an area of IP that has been heavily > covered over the last 10++ years... > > Shane Beers wrote: >> Have there been any projects investigating the potential for >> watermarking images stored in the repository as they are accessed >> by the user? >> >> Here is a quick guide to using PHP and the GD Graphics Library to >> accomplish this, but not within the DSpace environment: >> >> http://www.sitepoint.com/article/watermark-images-php >> >> I'm not sure if something like this could be done within DSpace, >> but it would certainly be helpful for my institution in some cases. >> >> Shane Beers >> Digital Repository Services Librarian >> George Mason University >> [EMAIL PROTECTED] >> 703-993-3742 >> >> >> >> >> ------------------------------------------------------------------------- >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services for >> just about anything Open Source. >> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace >> _______________________________________________ >> DSpace-tech mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/dspace-tech > > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace > _______________________________________________ > DSpace-tech mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dspace-tech ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ DSpace-tech mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspace-tech
