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histogram viewer for RGB color space
#268143
05/27/09 15:46
05/27/09 15:46
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Joined: Jul 2001
Posts: 6,904
HeelX
OP
Senior Expert
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OP
Senior Expert
Joined: Jul 2001
Posts: 6,904
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Hi, this is actually not a project or game related. I needed for my current research project a histogram viewer for the RGB color space in which I can render for each histogram bin a presentation through a particle. click for larger image These are actually ~390.000 particles. On my laptop I have ~10 fps. This is very cool, the performance comes through the particle instancing. If you wanna try it out, download the following archive: click here to download the BGR 3D histogram viewer (hisView) Just start the exe and select the .txt file. In fact, I trained on a large database of skin images to retrieve the probability distribution in RGB space for skin color. So, only these "skin-ish" colors are represented in the histogram. Have fun, Christian
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Re: histogram viewer for RGB color space
[Re: HeelX]
#268148
05/27/09 16:52
05/27/09 16:52
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Joined: Apr 2005
Posts: 4,506 Germany
fogman
Expert
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Expert
Joined: Apr 2005
Posts: 4,506
Germany
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"390.000" Good to know. Apart from that: Itīs really impressive what you get out of the engine. Kudos!
no science involved
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Re: histogram viewer for RGB color space
[Re: Cowabanga]
#268166
05/27/09 19:07
05/27/09 19:07
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Joined: Nov 2007
Posts: 1,032 Croatia
croman
Serious User
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Serious User
Joined: Nov 2007
Posts: 1,032
Croatia
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cool stuff you got there 390k particles with 10fps on laptop....hm...nice
Ubi bene, ibi Patria.
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Re: histogram viewer for RGB color space
[Re: croman]
#268245
05/28/09 10:23
05/28/09 10:23
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Joined: Jun 2006
Posts: 2,640 Earth
Germanunkol
Expert
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Expert
Joined: Jun 2006
Posts: 2,640
Earth
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hm... why does it switch colors when rotating? Is it supposed to do that? Other than that, wow
~"I never let school interfere with my education"~ -Mark Twain
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Re: histogram viewer for RGB color space
[Re: Germanunkol]
#268330
05/28/09 17:12
05/28/09 17:12
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Joined: Jul 2001
Posts: 6,904
HeelX
OP
Senior Expert
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OP
Senior Expert
Joined: Jul 2001
Posts: 6,904
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hm... why does it switch colors when rotating? Is it supposed to do that? That has to do with alpha-sorting. When you rotate the RGB cube so that the white corner faces the camera, the darker particles are "fighting" against the brighter particles. Has anyone an idea to fix that? Maybe I use a 1-bit alpha DDS image... Best regards (and thanks for the comments), -- Christian
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Re: histogram viewer for RGB color space
[Re: mk_1]
#268376
05/28/09 21:29
05/28/09 21:29
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Joined: Jul 2001
Posts: 6,904
HeelX
OP
Senior Expert
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OP
Senior Expert
Joined: Jul 2001
Posts: 6,904
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Sort of. I deal with realtime facial motion capturing. The first step of my work is easy: finding a region of interest, which is actually in my case the face, obviously.
I'm currently testing RGB, HSV and LAB color spaces about which is suited best to assign each pixel a probability if it is a skin pixel (research showed HSV is the best). Then I group 'em and together with a motion and a geometry cue I hopefully get the face bounding box.
Last edited by HeelX; 05/28/09 21:30.
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Re: histogram viewer for RGB color space
[Re: HeelX]
#268489
05/29/09 16:03
05/29/09 16:03
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Joined: Mar 2004
Posts: 92 Dresden
Revo
Junior Member
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Junior Member
Joined: Mar 2004
Posts: 92
Dresden
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OO - this is realy cool (and its very interesting how much the instancing influences the fps . sry for the offtopic question, but i am searching the last hour after it: can you tell me which way you included this file-select-popup (i remember that i read sth about that .. but can't remember ^^)
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