Masa

Let's say you have a black and white 2D video of your face from a webcam. I want to generate a geometry shape (for OpenGL) from the video.

In other words, I am trying to find a way to convert x and y coordinates of white pixels to x and y value for OpenGL. Black pixels should be ignored, and Y values would be 0.

The effect I am aiming to achieve is something similar to this.

Hello all.
Let's say you have a black and white 2D video of your face from a webcam. I want to generate a geometry shape  (for OpenGL) from the video.
In other words, I am trying to find a way to convert x and y coordinates of white pixels to x and y value for OpenGL. Black pixels should be ignored, and Y values would be 0.
The effect I am aiming to achieve is something similar to this.
https://youtu.be/8nTFjVm9sTQ (Radiohead - House of Cards)

how-would-you-convert-a-black-and-white-2d-video-to-geometry-vertices-for-opengl

I suppose git.gl.nurbs or jit.gl.isosurf. or you could generate a geomatry shape with like jit.gl.shape, export it as a matrix and process this matrix with your data.

I think you can send the video to jit.luma and generate values based on its 'lightness' and send those to the Z plane of your mesh matrix. Then just use the original video as texture for the mesh. - look at this - 

Actually, i just re-read your question - this isnt exactly what you are after, but may be of some help.

I think you can send the video to jit.luma and generate values based on its 'lightness' and send those to the Z plane of your mesh matrix. Then just use the original video as texture for the mesh. - look at this - https://vimeo.com/149618852

Actually, i just re-read your question  - this isnt exactly what you are after, but may be of some help.


Thank you very much for your insights guys. They're both helpful.

Only the think I should have made it clear is that the final result I am aiming to achieve is to draw a face with points, lines, or triangles. Something similar to this effect (polygon graphic).

Thank you very much for your insights guys. They're both helpful.
Only the think I should have made it clear is that the final result I am aiming to achieve is to draw a face with points, lines, or triangles. Something similar to this effect (polygon graphic).


Reposted a clarified question focusing on what I'm trying to achieve.

https://cycling74.com/forums/how-would-you-generate-polygon-graphics-from-a-webcam-input/

Reposted a clarified question focusing on what I'm trying to achieve.
https://cycling74.com/forums/how-would-you-generate-polygon-graphics-from-a-webcam-input/


How would you convert a black and white 2D video to geometry vertices for OpenGL