Protecting web images : Rebol/flash , other ?
[1/4] from: jjmmes::yahoo::es at: 21-Aug-2002 1:36
Any ideas on how to protect a copyrighted image from web stealing ? Can I embed the image in Flash via the Rebol/Flash dialect and ensure the images can not be copied by web users ? Thanks Jose
[2/4] from: gscottjones:mchsi at: 21-Aug-2002 5:50
> Jose: > > Any ideas on how to protect a copyrighted image from > > web stealing ?
> Extensive discussion at: > > http://www.webmasterworld.com/forum21/2061.htm > > Consensus: if it appears on screen, it can be copied.
Hi, Jose, My previous search into the topic is pretty much summarized by Sunanda's comment, and explored by the link. In case you are hungry for more: Philip Greenspun also has waxed philosophically on this topic in various places. Unfortunately. some of the discussions are archived at arsdigita.com, which has apparently been subsumed into RedHat's arganization and the works are not yet ready for access (like the usenet group archives after acquisition by google). The glossy overview is (if I recall correctly), do what you can to accommodate fair-use and non-commercial use, make it easy for someone to have access to commercial use, and post a hall of shame for infringers. He points out that one can spend a lifetime in court fighting all sorts of injustices, but is that really the way one wants to spend ones life? Here are a few links which will at least give you some additional food for thought: His copyright notice: http://www.photo.net/philg/nasty-copyright-notice.html His philosophy: http://philip.greenspun.com/politics/litigation/philosophy then skip down to "Case Study: copyright" --Scott Jones
[3/4] from: oliva:david:seznam:cz at: 26-Aug-2002 14:38
Hello jose, Wednesday, August 21, 2002, 1:36:23 AM, you wrote: j> Any ideas on how to protect a copyrighted image from j> web stealing ? j> Can I embed the image in Flash via the Rebol/Flash j> dialect and ensure the images can not be copied by web j> users ? If you do that, users will not be able to save it using right-click so some small protection there is, but they always will be able to print-screen.... ... but that's much more work to do.... some people will not be able to run some sort of bots to download tons of images automatically (as I did one time:-) so my conclusion: + embeding images in flash gives you some protection. - some people without flash pluggin will not be able to see them + you may play with some effects (I can imagin some shapes (lines, dots, oldmovies-type-of-effect?) moving across the image so it will be much more difficult to use it by print-screening).... + you can make some slide shows with image preloaders etc. - Rebol/flash dialect is quite slow while converting bitslossless images (I don't have /Pro to play with some libraries support) it's usefull only with basic JPGs - it's quite simple to restore the image using some type of SWF disassembler)
[4/4] from: jjmmes::yahoo:es at: 27-Aug-2002 16:19
I was thinking the best solution would be to embed the image in some component and have a scrolling text effect to make it difficult for people to take screenshots but you're saying that someone can disassemble SWF easily, right ? I will be using JPG and I imagine this can be called by the SWF component or otherwise the JPG can be batch processed to the SWF format so that performance is not an issue. Are you saying the first option is bad because it takes a while for SWF to convert the JPG ? (I think I experienced this clicking in one of your SWF links) Thanks Jose THanks --- RebOldes <[oliva--david--seznam--cz]> wrote: