I did the same thing (albeit a bit more kludgey) this summer using the same OpenCV library and python. Check it out at http://code.google.com/p/warai/ , or at http://bespokeblog.wordpress.com/2008/07/27/laughing-man-code-warai/ . I considered using Processing, but I like python more ;)

Posted at 12:13 pm on Dec 31st, 2008 by Ben Keller

Love it!

Posted at 12:27 pm on Dec 31st, 2008 by Nick

That is sweet. Now to get the hack out to surveillance systems. I love GiS

Posted at 12:38 pm on Dec 31st, 2008 by tesla

Would have been nice if you mentioned it was written in Java.

Posted at 12:39 pm on Dec 31st, 2008 by Dan

I must admit, I flipped my shit for a second or two when I pulled up the back and was greeted by logo.

Posted at 12:48 pm on Dec 31st, 2008 by new year will

Dan, he said it was written in Processing.
http://www.processing.org/

Posted at 1:01 pm on Dec 31st, 2008 by Blind

GITS is one of the best anime series ever produced, this is totally awesome!

Posted at 1:23 pm on Dec 31st, 2008 by ross

sorry, noob here, when I run the code I get a video window to open, but no face recognition. The bottom window says:

The haar classifier cascade file ‘haarcascade_frontalface_alt.xml’ can not be found in folders, you must specify the full path instead.

any ideas?

Posted at 2:37 pm on Dec 31st, 2008 by Zorink

Last I tried to use OpenCV in Ubuntu it crashed like nutz because of a bug in the Linux kernel.

Bastards!

Posted at 2:58 pm on Dec 31st, 2008 by marz

So much win I love it ^_^ Should try this out on the school’s camera system.

Posted at 3:06 pm on Dec 31st, 2008 by Jamesy

Cool, now i have something to match my Shirt.

Posted at 4:07 pm on Dec 31st, 2008 by Erik

Posted at 5:42 pm on Dec 31st, 2008 by jim

@zorink

Change the text:

OpenCV.CASCADE_FRONTALFACE_ALT

to

“C:\\Program Files\\OpenCV\data\\haarcascades\\haarcascade_frontalface_alt.xml”

include the quotes, and remember to double the backslashes. If that doesn’t work, find where you installed the OpenCV facial recognition profiles and put that in instead.

Posted at 6:49 pm on Dec 31st, 2008 by Ben

Ghost in the Shell was great, and projects like this just increase the entertainment value. :)

Posted at 7:19 pm on Dec 31st, 2008 by GITS fan

Using a Creative webcam with their Advanced Video Effects software, you can download this program http://www.mylivecam.com/howtos/article.aspx?id=70078&page=1 to create your own effect doing the same mask thing.

Posted at 8:13 pm on Dec 31st, 2008 by AbuMaia

Sweet, love GITS SAC, I considered doing this a few weeks ago, but looks like someone beat me to it :P

great job!

Posted at 11:07 pm on Dec 31st, 2008 by theweirdness

Can’t get it to work :/
Using Windows XP… says it can’t find the openCV library after I installed it.

Posted at 11:28 pm on Dec 31st, 2008 by TheKhakinator

Sweet! but remember that in GitS SAC, the text around the logo scrolled… someone called deltadesu posted an updated animated version on the comments. He says it’s low res, though.

Posted at 2:22 am on Jan 1st, 2009 by The LOLing Man

@TheKhakinator

make sure you have your opencv/bin directory in your PATH variable. my installer claimed to do so, but did not.

Posted at 6:52 am on Jan 1st, 2009 by Ben

http://idisk.mac.com/barrywoods/Public/hackaday/hackaday_man.tiff

Posted at 9:38 am on Jan 1st, 2009 by barry99705

@ben

that didn’t work either, it didn’t like the \ character

I finally got it to work by copying the OpenCV.CASCADE_FRONTALFACE_ALT.xml
into the same directory as the laugh script

Posted at 2:32 pm on Jan 1st, 2009 by Zorink

ok so i got this working, but (sorry if this is noob, this is my first experience with processing) how would i go about incorporating this into iChat when i video chat with people? would i have to extract the application to some where in the libraries of Ichat where it would run when the video chat was triggered?

Posted at 7:27 pm on Jan 1st, 2009 by julien

Hah, awesome. I did the same thing with an apple a while back so as to create my own digital version of the “son of man” painting.

Incidentally, in case anyone is interested, I’m going to be putting up some Processing + OpenCV tutorials on my site probably some time in the next week :)

Posted at 7:47 pm on Jan 1st, 2009 by Andy Best

crap i cant get this to work i keep getting a error message saying that,

Does anyone know what that means?

Posted at 8:47 pm on Jan 1st, 2009 by Fang

crap i cant get this to work i keep getting a error message saying that,

the package “hypermedia” does not exist. You might be missing a library.

Does anyone know what that means?

Posted at 8:48 pm on Jan 1st, 2009 by Fang

@fang:
did you install the opencv correctly?

Posted at 10:29 pm on Jan 1st, 2009 by julien

Thanks, Ben.

And yeah that absolute thing needs \\ to work.

Posted at 1:27 am on Jan 2nd, 2009 by TheKhakinator

heh its fun xD

Posted at 4:21 am on Jan 2nd, 2009 by carloscorp

@Julien

I believe so. Ive redone it just to make sure and i get the same problem

Posted at 6:48 am on Jan 2nd, 2009 by Fang

Dreamy idea, hardly yet achievable, would be to couple openVC with things like unwarp-mosaic (from siggraph 2008) and then write code automatically morphing all faces in a videoe.g. to smile like joker or aphex twin. Anyone knows of things similar in effect to unwarp-mosaic?

Posted at 2:33 pm on Jan 2nd, 2009 by cck

@ Zorink

I did what you said, by copying the OpenCV.CASCADE_FRONTALFACE_ALT.xml
into the same directory as the laugh script. Now it opens my webcam, but doesn’t display the logo on my face. Know how to fix this?

Posted at 4:54 pm on Jan 2nd, 2009 by Guy

@guy
make sure you copied the right file, there is also one called haarcascade_frontalface_alt_tree.xml
You can’t normaly see the _tree part

Posted at 4:17 am on Jan 3rd, 2009 by chaostheory

@chaostheory
Well I found haarcascade_frontalface_alt_tree.xml, it was in C:/Program Files/OpenCV/data/haarcascades/haarcascade_frontalface_alt.xml. Now what am I supposed to do with it? I tried moving it into the same directory as the laugh folder but that didn’t do anything. I feel like such a newb.

Posted at 12:58 pm on Jan 3rd, 2009 by GUY

Hi guys! Thanks for your interest!

I’ve updated the script with some user suggestions. Now the text rotates and the image scales! Check it out: http://awgh.org/files/laugh-0.2.tgz

Future work: Get OpenCV to work on profiles as well and work out some of the flicker bugs!

Posted at 3:06 pm on Jan 5th, 2009 by ben kurtz

Honestly? This is one of the sample programs that comes with openCV, only instead of placing a box around the face, he places an image.

Sorry, just not impressed.

Posted at 8:29 am on Jan 22nd, 2009 by Lordi GaForge

SERIOUSLY. WHO THE FUCK DID THIS STUPIF PROGRAM?
IT FUCKING WANNABIE “CRASHES” MY GOD DAMN SERVER.
no this is not funny, thanx to that fucking idiot who made this i’ve lost 200$ usd.

The one who did this deserves a bulldozer up his/her ass.

If i ever get your name ill sue you. Good luck.

Posted at 2:10 pm on May 26th, 2009 by Linus

@linus your annoying

Posted at 3:12 pm on Jul 2nd, 2009 by jojo