to get the brightness of a live video feed you could use
[pix_video] and [pix_data] from Gem for example.
look into the helpfiles



Am 12.07.2007 um 14:53 schrieb Henry Lin:

hello
   what i mean is we need to use the cam recorder to capture the lighting and send out a number... which mean that a 100% of brightest

thanks


From: Hans-Christoph Steiner <hans@eds.org>
To: Henry Lin <henry_wj_l1@hotmail.com>
CC: pd-list@iem.at
Subject: Re: [PD] How do you find exposure from pixel or video?
Date: Thu, 12 Jul 2007 09:31:29 -0400


Welcome!

I am not sure I know what you mean by "finding exposure from pixel or video", do you mean getting images from a video camera?  For that you can use pix_video, pdp_v4l, or pdp_ieee1394.

.hc

On Jul 11, 2007, at 9:34 PM, Henry Lin wrote:

Hello
    Iam new to puredata ,  i need help in finding exposure from pixel or video

thank you everyone =)



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