Don't know if people will interact _manually_ with the virtual objects,
if yes, and if a coarse resolution is ok, you might want to consider to 
let the people wear gloves with reflectors on them.

I have once played on an installation with a climbing wall where I had 
to touch some monsters high on the wall to kill them, they used some 
flash add-on and reflector gloves.

Cheers,

Markus

> Ultimately, what I want to do is a) convert the color image to B/W, b)
> set a threshold of what is "white" and what is "black" (that is,
> everything over a certain value -- let's say 123 -- will be considered
> white, and everything below will be considered black), and c) construct
> a Morph object out of the "black" part of the image. This Morph object
> will interact w/ the virtual balls (which are already done).
>
> -----Original Message-----
> From: squeak-dev-bounces at lists.squeakfoundation.org
> [mailto:squeak-dev-bounces at lists.squeakfoundation.org] On Behalf Of 
> Bert
> Freudenberg
> Sent: Friday, July 16, 2004 6:31 PM
> To: The general-purpose Squeak developers list
> Subject: Re: Using video input in Squeak
>
> Use BitBlt with a colorMap (see BitBlt's class comment).
>
> - Bert -
>
> Am 16.07.2004 um 20:31 schrieb Rob Hensley:
>
>> I'm not sure who has been following my story, but I started this
>> project
>> using a Mac, and then switched to a PC running Windows (at the urging
>> of
>> my mentor).
>>
>> I am using the DVideoShowDecoderPlugin. I have tested it, and it
> works.
>> My next step is separating the live actor's shadow part of the video
>> image from the white background: I need to convert the Form from color
>> to black and white. Once I have the shadow only, I can make a Morph
> out
>> of it and instruct the virtual balls to react to it.
>>
>> Does anyone have any tips on the easiest way to convert the color
> image
>> to B/W?
>>
>> -----Original Message-----
>> From: squeak-dev-bounces at lists.squeakfoundation.org
>> [mailto:squeak-dev-bounces at lists.squeakfoundation.org] On Behalf Of
>> Bert
>> Freudenberg
>> Sent: Wednesday, July 14, 2004 6:55 AM
>> To: The general-purpose Squeak developers list
>> Subject: Re: Using video input in Squeak
>>
>> You would have to write a plugin similar to Diego's V4LPlugin that
> uses
>> Quicktime to read from the camera. To my knowledge, there is no such
>> plugin, yet. It might be a good idea to use the same primitives to
>> minimize platform-dependencies on the image side.
>>
>> - Bert -
>>
>> Am 12.07.2004 um 14:42 schrieb Rob Hensley:
>>
>>> Ah, I'm using a Mac for this project...
>>>
>>> Any ideas?
>>>
>>> 	-----Original Message-----
>>> 	From: squeak-dev-bounces at lists.squeakfoundation.org on behalf of
>> Ned
>>> Konz
>>> 	Sent: Wed 7/7/2004 3:47 PM
>>> 	To: The general-purpose Squeak developers list
>>> 	Cc:
>>> 	Subject: Re: Using video input in Squeak
>>> 	
>>> 	
>>>
>>> 	On Wednesday 07 July 2004 1:30 pm, Rob Hensley wrote:
>>> 	> That's exactly where I got the idea for the project!
>>> 	>
>>> 	> Do you have any suggestions as to where to start looking for
>>> interface
>>> 	> code/demos?
>>> 	
>>> 	Diego Gomez Deck has been working on an interface from
>> Video4Linux to
>>> Squeak.
>>> 	
>>> 	Look at:
>>> 	http://minnow.cc.gatech.edu/squeak/3765
>>> 	
>>> 	Also:
>>> 	http://minnow.cc.gatech.edu/squeak/1853
>>> 	http://minnow.cc.gatech.edu/squeak/2411
>>> 	http://www.is.titech.ac.jp/~ohshima/squeak/DShowVideo/
>>> 	
>>> 	--
>>> 	Ned Konz
>>> 	http://bike-nomad.com/squeak/
>
>
>