Images; Ken Burns Effect

[Gary Duncan]

A few months ago - if memory serves - I posted a query here
as to whether anyone had a bit of Javascript which could
be used to render this effect on an image in a WEB-browser.

Didn't get the magic solution I hoped for (some recommended
using Flash), but anyway I recently managed to get a bit of Javascript
from somewhere , and hacked up a simple demo, which may
be good enough for my humble purposes.

(Look for "Ken Burns Demo" at the top ) :-

http://home.swiftdsl.com.au/~gmduncan/


Again, if by now someone has a more sophisticated version,
I'd like it.

- Gary

 

[Erwin Moller]

A few months ago - if memory serves - I posted a query here
as to whether anyone had a bit of Javascript which could
be used to render this effect on an image in a WEB-browser.

Didn't get the magic solution I hoped for (some recommended
using Flash), but anyway I recently managed to get a bit of Javascript
from somewhere , and hacked up a simple demo, which may
be good enough for my humble purposes.

(Look for "Ken Burns Demo" at the top ) :-

http://home.swiftdsl.com.au/~gmduncan/


Again, if by now someone has a more sophisticated version,
I'd like it.

- Gary

Hi,

To be honest: It is a fun effect, but plain ugly.
I wouldn't use it anywhere except on a demopage. :-/

Regards,
Erwin Moller

 

[McKirahan]

A few months ago - if memory serves - I posted a query here
as to whether anyone had a bit of Javascript which could
be used to render this effect on an image in a WEB-browser.

Didn't get the magic solution I hoped for (some recommended
using Flash), but anyway I recently managed to get a bit of Javascript
from somewhere , and hacked up a simple demo, which may
be good enough for my humble purposes.

(Look for "Ken Burns Demo" at the top ) :-

http://home.swiftdsl.com.au/~gmduncan/


Again, if by now someone has a more sophisticated version,
I'd like it.

- Gary

No image under IE5.5.

Just annoying under FF1.0.6.

So the image does a figure 8, sort of?

 

[Gérard Talbot]

Gary Duncan wrote :

A few months ago - if memory serves - I posted a query here
as to whether anyone had a bit of Javascript which could
be used to render this effect on an image in a WEB-browser.

Didn't get the magic solution I hoped for (some recommended
using Flash), but anyway I recently managed to get a bit of Javascript
from somewhere , and hacked up a simple demo, which may
be good enough for my humble purposes.

(Look for "Ken Burns Demo" at the top ) :-

http://home.swiftdsl.com.au/~gmduncan/


Again, if by now someone has a more sophisticated version,
I'd like it.

- Gary

Gary, all of your demo, scripts, images consume a lot of system
resources (cpu and RAM). The worst one is the cursor trailing effect.
People with modest systems are prone to crash as soon as they move the
cursor fast.

Just ask yourself: are these effects/tricks really useful for the
visitors? adding content? helping the user?

Gérard

 

[Gary Duncan]

No image under IE5.5.

Being a Linuxian, I'm not an IE user, but doesn't IE by default
disable Javascript ? Or is that just Windows XP ?


Hmm; I saw it work under IE , but maybe that was version 6.0,
with Javascript enabled.

Just annoying under FF1.0.6.

Well my prototype effort isn't as slick as Apple iPhoto but
I'm working on it It does show that the KBE can be implemented
in Javascript without too much complexity, I think.

I'm thinking of maybe moving the image around for a few secs,
then zoom it out and freeze it into the window.

Seems people either love or hate the KBE. I can see it
could become a bit tiresome, hence using it in
a slideshow should be optional.

So the image does a figure 8, sort of?

Sort of. But see above.
- Gary

 

[ASM]

Hi,

To be honest: It is a fun effect, but plain ugly.
I wouldn't use it anywhere except on a demopage. :-/

that was done (Ken Burns Demo)

and wow do we stop efects ?
I'm seasick now :-/

 

[Randy Webb]

Gary Duncan said the following on 8/30/2005 6:19 PM:

Being a Linuxian, I'm not an IE user, but doesn't IE by default
disable Javascript ? Or is that just Windows XP ?

Neither. IE6 and WinXP ship with JS enabled. But I have WinXP SP2 with
JS enabled and I do not see the image either.

 

[Richard Cornford]

that was done (Ken Burns Demo)

It is odd after all this time that whatever this "ken Burns effect" is
supposed to be has not actually been stated. Though not surprising that
as a result nobody seems interested in how it might be implemented.

and wow do we stop efects ?
I'm seasick now :-/

Inducing seasickness has been proposed as one strategy in image
"protection". The idea being that if you sufficiently disorientate the
user they will not be able to press the Alt+Shift+PrintScrn key
combination (or OS equivalent) and grab the image to the clipboard. ;-)

Richard.

 

[Gary Duncan]

Gary Duncan said the following on 8/30/2005 6:19 PM:



Neither. IE6 and WinXP ship with JS enabled. But I have WinXP SP2 with
JS enabled and I do not see the image either.

I defer to your experience - but I do recall when I (rarely) used IE 6.0
under Win-XP (SP2) to access some HTML with Javascript, a warning line come up under the
navigation bar saying something like "click here to activate scripts".

A local friend managed to view this demo using IE 6.0 yesterday so
maybe there's something about your environment I need to take
into account.

Any ideas ?

- Gary

 

[Gary Duncan]

It is odd after all this time that whatever this "ken Burns effect" is
supposed to be has not actually been stated. Though not surprising that
as a result nobody seems interested in how it might be implemented.

It's a bit like the Heisenberg Uncertainty Principle;
try to define it and it shifts.

Seriously, "Google" for it - but I doubt that you, like me, will
find a set of algorithms for it, even tho there's heaps of links to it.

As far as I can see, its a subjective effect.

Just pan and zoom in any way you feel like ("the Fred Bloggs effect" ?)

Correct me if I'm wrong.


In a previous mail I said that my *prototype* demo which is a sort of
continuous loop, should stop after a few secs and zoom out to give a
frozen full-size image. To prevent nausea


- Gary

 

[Richard Cornford]

It's a bit like the Heisenberg Uncertainty Principle;
try to define it and it shifts.

Heisenberg would not have been given a Nobel prize if he had taken that
attitude.

Seriously, "Google" for it -

Why? I am not the one asking for help, I am one of the many disregarding
the question as incomplete. It is not reasonable to ask the rest of the
world to research the subject of your question on an individual basis.

but I doubt that you, like me, will
find a set of algorithms for it,

Turning a description into an algorithm and then implementing it is a
large part of what programming is.

Correct me if I'm wrong.

When what you are doing proves ineffective do you need someone else to
tell you that you are going about it the wrong way?

Richard.