Re: [PanoToolsNG] How to protect Partial Panoramas ?
- Just wanted to revisit this thread with an example of what I meant...
I read the message as wanting to present panos that are not 360 -
very often we don't want to do perspective correction (realtime
warping), but rather present it as a large, flat image. Obviously Web
browsers aren't great at this, and there's the inherent risk when
posting a high rez image. I posted two panos last night using
Zoomify's Flash viewer:
This isn't 100% foolproof of course - it is possible to reconstruct
the full resolution file from the JPEG tiles, but outside of a demo
app I put together to do this I don't think it's a real, in-the-wild
risk. Famous last words, I know... but it's a nice interface as an
alternative to our more spherically-oriented pano viewers.
- --- "Mr. Roger Howard" <rogerhoward@...> wrote:
>Using the print screen button and photoshop I'm able to capture usable
> This isn't 100% foolproof of course - it is possible to reconstruct
"slices" of 1578 x 744 pixels. The original seems to be about 3200
pixels high, so it would probably take an hour or so to get all the
bits and put them together by hand at full resolution. But I could
capture 5 or 6 at screen resolution, and still have a very useful
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- On Aug 4, 2006, at 9:40 AM, Bob R. wrote:
> --- "Mr. Roger Howard" <rogerhoward@...> wrote:Which I acknowledged - frankly, anything you can see you can copy.
>> This isn't 100% foolproof of course - it is possible to reconstruct
> Using the print screen button and photoshop I'm able to capture usable
> "slices" of 1578 x 744 pixels. The original seems to be about 3200
> pixels high, so it would probably take an hour or so to get all the
> bits and put them together by hand at full resolution. But I could
> capture 5 or 6 at screen resolution, and still have a very useful
It's a risk/reward calculation. I can provide a tool - which I won't,
so don't ask! - which could create a complete, high-resolution copy
of these panoramas (and almost any other posted using Zoomify) in
minutes, not hours. But as I said, for casual protection, a Flash-
based player with remotely hosted content will stop typical users.
Nothing will stop sophisticated technologists bent on copying your
content. Since I don't make a living selling these panoramas, the
risk is low and the reward is high. For other scenarios all will have
to determine the results of this calculation themselves.
These risks exist with ALL player technology. We can reconstruct
editable files from almost any player solution that will result in as
much resolution as the content provider allows you to see.