Render 4-channel image? about ostec HOT 2 CLOSED

Thanks. What a marvellous idea!

from ostec.

Hi,
A very good question. render_uv_image function basically unwrap the face into a UV space given a 3D face reconstruction (i.e. dense landmarks). In order to know which parts of UV texture map need completion, we first run a face segmentation/masking on 2D image and then map it to the UV texture map. To avoid running UV extraction (i.e. which is arasterization process) twice, I concat the masking to the RGB image and then seperate.

img_uv_src.pixels[3]<0.5 inversing the map as well as removing any non-binary outputs caused by the interpolation.

Later we use this UV mask here to remove segmented part of the face from UV texture map.

Hope this answers your question,
Baris

from ostec.