a way to convert brightness to control data - erutufon|nofuture

CV · 20th July 2006

.. I'm looking for a way of reading the brightness of a quicktime movie , perhaps every 0.5 seconds, and generating a MIDI or other control data stream from this in realtime, or rendered... anyone think of a way of doing that?

ckpqerjwrpwp · 20th July 2006

Very simple with Max/MSP and the Jitter matrix objects. They both have 30 day trials if you don't already use them.

ckpqerjwrpwp · 20th July 2006

...and PD too no doubt, the reason I instantly thought of max is that this is basically what the early Jitter tutorials cover.

CV · 20th July 2006

does jitter run with PD?

ckpqerjwrpwp · 20th July 2006

Quote:

Originally Posted by cristian

does jitter run with PD?

I'm pretty sure it doesn't but there are similar things to Jitter on PD.. I think..

*Spandex* · 21st July 2006

There's sommat called GEM in PD which i've used successfully on Windows and OSX. Getting PD/GEM installed on OSX involved hunting around to find someone who'd compiled the latest versions and made a nice .dmg of it.. otherwise you end up writing stuff according to the docs and then wondering why it doesn't work.. (because the standard OSX distribution seems to be pretty old)

Lara · 21st July 2006

You should try posting here Cristian www.vjforums.com

*mdk* · 21st July 2006

or you could program something using qtjava

and java midi stuff is easy to program..

its probably a lot easier to use max / pd but i like programming things.

vidatone · 22nd July 2006

There are a couple motion tracking objects for max in the cv.jit externals that might be usefull...

http://www.iamas.ac.jp/~jovan02/cv/

CV · 23rd July 2006

thanks for the tips

seems like semiconductor managed to send me the data by generating a control signal wav using an after effects plug

ckpqerjwrpwp · 23rd July 2006

Quote:

Originally Posted by cristian

thanks for the tips

seems like semiconductor managed to send me the data by generating a control signal wav using an after effects plug

Ooh that's interesting, could you find out what the plugin was called? I could imagine using that for sound for image work.

mattp · 26th July 2006

Just looking around at some similar things on the web I found these ..

http://www.vvvv.org/tiki-index.php

and

http://www.quartzcompositions.com/phpBB2/

Both look like interesting stuff..

20th July 2006	#1
CV cristianvogel.neverengine.org Join Date: Feb 2002 Location: Berlin Posts: 2,983	a way to convert brightness to control data .. I'm looking for a way of reading the brightness of a quicktime movie , perhaps every 0.5 seconds, and generating a MIDI or other control data stream from this in realtime, or rendered... anyone think of a way of doing that?
	:: quote post ::

20th July 2006	#2
ckpqerjwrpwp SELL OUT Join Date: Dec 2005 Posts: 6,416	Very simple with Max/MSP and the Jitter matrix objects. They both have 30 day trials if you don't already use them.
	:: quote post ::

20th July 2006	#3
ckpqerjwrpwp SELL OUT Join Date: Dec 2005 Posts: 6,416	...and PD too no doubt, the reason I instantly thought of max is that this is basically what the early Jitter tutorials cover.
	:: quote post ::

20th July 2006	#4
CV cristianvogel.neverengine.org Join Date: Feb 2002 Location: Berlin Posts: 2,983	does jitter run with PD?
	:: quote post ::

21st July 2006	#6
Spandex Very Bad Dog Join Date: Jan 2004 Location: Nottingham Posts: 8,428	There's sommat called GEM in PD which i've used successfully on Windows and OSX. Getting PD/GEM installed on OSX involved hunting around to find someone who'd compiled the latest versions and made a nice .dmg of it.. otherwise you end up writing stuff according to the docs and then wondering why it doesn't work.. (because the standard OSX distribution seems to be pretty old) ........................... lovely cloakroom. lovely cloaks - barbam nondum video
	:: quote post ::

21st July 2006	#7
Lara vidiot Join Date: May 2004 Location: London Posts: 124	You should try posting here Cristian www.vjforums.com
	:: quote post ::

21st July 2006	#8
mdk Доста Работиш Тато Join Date: Jan 2004 Location: at home. Posts: 3,328	or you could program something using qtjava and java midi stuff is easy to program.. its probably a lot easier to use max / pd but i like programming things. ...........................
	:: quote post ::

22nd July 2006	#9
vidatone Registered Erutufon Member Join Date: Aug 2003 Location: L.A. Posts: 17	There are a couple motion tracking objects for max in the cv.jit externals that might be usefull... http://www.iamas.ac.jp/~jovan02/cv/
	:: quote post ::

23rd July 2006	#10
CV cristianvogel.neverengine.org Join Date: Feb 2002 Location: Berlin Posts: 2,983	thanks for the tips seems like semiconductor managed to send me the data by generating a control signal wav using an after effects plug
	:: quote post ::

26th July 2006	#12
mattp Registered Erutufon Member Join Date: Apr 2002 Location: Oxford (UK) Posts: 973	Just looking around at some similar things on the web I found these .. http://www.vvvv.org/tiki-index.php and http://www.quartzcompositions.com/phpBB2/ Both look like interesting stuff..
	:: quote post ::

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