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'[OT] website pictures - how to download proof'
2009\02\02@154507 by alan smith

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This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.

Friend of mine did some unique images, but doesn't want to place them on
his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).

Anyone have a recommedation?


     

2009\02\02@155543 by Robin D. Bussell

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I'd say only publish low res, watermarked versions, anything else can be
ripped in one way or another.
Sure, there are various tricks to put off casual copying like javascript
to disable right click etc but they are all pretty much useless to
anyone with slightly more than zero computer savvy. Once the pixels are
in a foreign machine that's it as far as your control over them goes!
The only way to make lifting the images hard would be to enforce the use
of some non standard image viewing software... which would then
immediately lose most of the audience unless you have a *very* enticing
line in patter :)

Cheers,
    Robin.

{Original Message removed}

2009\02\02@155826 by Vitaliy

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"alan smith" wrote:
> This is really an OT question, in regards to keeping your pictures from
> being downloaded or lifted from a website.
>
> Friend of mine did some unique images, but doesn't want to place them on
> his site for fear of being copied.  Sure he can add the watermark, but I
> think there are ways to remove that.  He wants to know how let others see
> them, yet not download (because he is selling the rights to his artwork).
>
> Anyone have a recommedation?

Alan,

The simple answer is that it's impossible to protect the images. If they can
be displayed, they can be copied (PrtScn). Whatever your friend does, please
ask him not to use JavaScript (right-click) protection, it's annoying to
legitimate users, and easily defeated.

You can have him take a look at the pictures on iStockPhoto.com, their
protection is based on a simple watermark, and the fact that the images are
low-res.

Vitaliy

2009\02\02@155828 by M. Adam Davis

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It is not possible to prevent people from getting them - if they are
viewable on the computer screen, they can be copied.

You can make it difficult for casual copright theft ( mess with the
right click menu, use overlays and fake backgrounds, etc, but these
are trivial to get around.

You could use a flash or silverlight application, but they could then
just do a screenshot.

What most artists do is they put a very small thumbnail on the page
with a significant watermark.  The thumbnail is small enough that the
image isn't really usable - just large enough to get an idea of the
work.

They may also post a closeup shot of one small area of the work to
show the detail and style.

-Adam

On Mon, Feb 2, 2009 at 3:44 PM, alan smith <spam_OUTmicro_eng2TakeThisOuTspamyahoo.com> wrote:
> This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.
>
> Friend of mine did some unique images, but doesn't want to place them on
> his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).
>
> Anyone have a recommedation?
>
>
>
> -

2009\02\02@155832 by Wayne Allen

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This is really an OT question, in regards to keeping your pictures from
being downloaded or lifted from a website.


Friend of mine did some unique images, but doesn't want to place them on
his site for fear of being copied.  Sure he can add the watermark, but I
think there are ways to remove that.  He wants to know how let others see
them, yet not download (because he is selling the rights to his artwork).

Anyone have a recommendation?

Watermark and keep the image small. If you can see it on a screen, it can be
copied. If the end users want to use the image professionally, then they
will generally need a higher resolution image to work with. See how
corbis.com and other image libraries work.

Wayne


2009\02\02@162446 by Wouter van Ooijen

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> Anyone have a recommedation?

yes: forget it. what I see I can shift-printscreen.

--

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu

2009\02\02@164908 by Jonathan Hallameyer

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On 2/2/09, alan smith <.....micro_eng2KILLspamspam@spam@yahoo.com> wrote:
> This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.
>
> Friend of mine did some unique images, but doesn't want to place them on
> his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).
>
> Anyone have a recommedation?
>

Java/flash/whatever non html galleries are a start, that way you arent
sending .jpg files to the computer.   Disabling right clicking on the
page is highly irritating, and disabling all clicking except on
hyperlinks (Ive seen it to prevent people copy and pasting text...) is
annoying to the point of not even reading what is on a page,
especially if you highlight with the mouse as you read.



--
Jonathan Hallameyer

2009\02\02@171126 by Vitaliy

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"Wouter van Ooijen" wrote:
>> Anyone have a recommedation?
>
> yes: forget it. what I see I can shift-printscreen.

Wouter, why Shift-PrintScreen? AFAIK PrtScn makes a snapshot of the entire
screen, and Alt-PrtScn makes a snapshot of the active window.

Vitaliy

2009\02\02@174056 by sergio masci

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On Mon, 2 Feb 2009, alan smith wrote:

> This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.
>
> Friend of mine did some unique images, but doesn't want to place them on
> his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).
>
> Anyone have a recommedation?

I don't use this myself BUT...

You could try breaking the pictures up into segments and showing each
segment as part of an animation (maybe multiple segments at a time?)
This way you would rely on the views persistance of vision and a simple
snapshot would not print the entire picture. It would take a lot of screen
shots, cutting and pasting to produce the picture in a form that
could be printed. You can produce animations as gif files or MPG or AVI.

Another thought, maybe you could produce an animation with subtle random
noise so that no single frame is free of noise and to a human observer it
is seen as a light moving mist?

Regards
Sergio Masci

2009\02\02@181324 by Harold Hallikainen

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It'd be interesting if there were some sort of watermark that would show
up in a Google search. Of course, people could probably remove it, but
they'd have to know it was there. Is there something in image files that
you can do a Google search on? Then, at least, you'd be able to find if
someone put them on another web page (though this is certainly not a
download prevention technique). Something I saw that was interesting that
kept people from embedding your images from your server in their web pages
was to have the server check the referrer and not send the photos if it
was wrong. Of course, people could still serve a local copy...

Harold



--
FCC Rules Updated Daily at http://www.hallikainen.com - Advertising
opportunities available!

2009\02\02@204514 by Vic Fraenckel

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alan smith wrote:
> This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.
>
> Friend of mine did some unique images, but doesn't want to place them on
> his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).
>
> Anyone have a recommedation?
>
>
>      
>  
Since it is not possible to keep pics from being downloaded, how about
using *steganography to hide a copyright notice, or something, within
the pics which most likely won't be detected as would a watermark. That
way one might be able to prove ownership after the fact.

Just a thought!

Vic
*
--

*____________________________________________________________________________________________*

*Victor Fraenckel
KC2GUI
windswaytoo ATSIGN gmail DOT com**

*

2009\02\03@012625 by Wouter van Ooijen

face picon face
> Wouter, why Shift-PrintScreen? AFAIK PrtScn makes a snapshot of the entire
> screen, and Alt-PrtScn makes a snapshot of the active window.

dunno, shft-prscrn works for me, but I'll try the others.


--

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu

2009\02\03@120618 by Herbert Graf

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On Mon, 2009-02-02 at 12:44 -0800, alan smith wrote:
> This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.
>
> Friend of mine did some unique images, but doesn't want to place them on
> his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).
>
> Anyone have a recommedation?

There is no way to stop it.

There are alot of techniques to try to prevent it, all of them can be
circumvented, usually rather easily. Once your image is in their frame
buffer they can copy it, no matter what you do.

Only way to prevent it is to not make it available, or to "poison" it
(i.e. put text on the image, but even that can be mostly removed by
someone with skill),  or post low res shots.

TTYL

2009\02\03@122727 by Carl Denk

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Reduce the resolution, to when it is blown up, it's very grainy (pixelated)

Herbert Graf wrote:
> On Mon, 2009-02-02 at 12:44 -0800, alan smith wrote:
>> This is really an OT question, in regards to keeping your pictures from being downloaded or lifted from a website.
>>
>> Friend of mine did some unique images, but doesn't want to place them on
>> his site for fear of being copied.  Sure he can add the watermark, but I think there are ways to remove that.  He wants to know how let others see them, yet not download (because he is selling the rights to his artwork).
>>
>> Anyone have a recommedation?
>
> There is no way to stop it.
>
> There are alot of techniques to try to prevent it, all of them can be
> circumvented, usually rather easily. Once your image is in their frame
> buffer they can copy it, no matter what you do.
>
> Only way to prevent it is to not make it available, or to "poison" it
> (i.e. put text on the image, but even that can be mostly removed by
> someone with skill),  or post low res shots.
>
> TTYL
>

2009\02\03@122750 by Carl Denk

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Reduce the resolution, to when it is blown up, it's very grainy
(pixelated). Ifranview will easily do it either singles or batch mode. :)

Herbert Graf wrote:
{Quote hidden}

2009\02\04@230650 by John Foley

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My wife is an artist and we have been discussing this subject for some
time.  I am considering using low res + watermarks for the intial
pages.

If someone is really interested in a specific painting, then I was
thinking of streaming video with camera the user can control.

The oil paintings she does will sell well above 350US each so the
extra attention for a "viewing" would be worth it

Just my $0.02

Chris

On 2/3/09, Vic Fraenckel <windswaytoospamKILLspamgmail.com> wrote:
{Quote hidden}

> -

2009\02\05@153813 by M. Adam Davis

face picon face
In that vein, why not simulate that from the server?

Keep a high resolution version on the server, and (like google maps)
allow people to pan and zoom.  Once they've seen a certain percentage
of high resolution tiles (say, 45% of the painting at 100dpi) then it
zooms back out and indicates that the remainder of the work can be
seen when purchased - not unlike Google books, you can read several
pages of your choosing throughout the book.  Could still be gamed -
may want to permanently leace out high resolution portions of much of
the image so people don't come back later, or on a different computer
and get them.  Even then, 100dpi is fine enough for the screen, but
unsuitable for printing or any significant usage, so this would still
be fairly limiting.

The code to control the session would have to be server side - if you
implemented the limits in javascript a clever person could request the
imagery directly, bypassing the limits.

It's not perfect, but for certain circumstance it might fit the bill.

There are open source pan and zoom map interfaces, and I expect there
are map cutting utilities that will take an image and chop it up into
the tile sets needed.  The only code you'd have to write is server
side limits.

-Adam

On Wed, Feb 4, 2009 at 11:06 PM, John Foley
<.....picnotes.foleyKILLspamspam.....googlemail.com> wrote:
{Quote hidden}

>> --

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