Black line around the edges

[wli75]

I'm trying to render the face model on top of the image, but there's a subtle black line around the edges. Do you have any recommendations as to how to remove it? Thank you.

[patrikhuber]

I don't think I've encountered that before. It looks like it could either be a rounding/1-pixel inaccuracy in the renderer, or something with the texturing/texture extraction. I wonder where it's coming from - can you render the model onto a white background? If the black edge is then still there, then it's most likely coming from the texturing.

[wli75]

The black edge is still there with a white background, but the isomap looks fine to me.

[patrikhuber]

Ok, interesting. Can you provide the input landmarks and image, and which fitting exactly you ran and with which parameters?

Does it occur with every image/rendering, or only with a few?

I'm actually not using eos's rendering much, you can also just export an obj and then use MeshLab/Blender for rendering, or use some OpenGL rendering, which I'm sure will render it better than eos's software rendering.

[junliu-cn]

@patrikhuber Do you have any OpenGL rendering code ? Simple demo code is enough.

[patrikhuber]

@ChrisLuu I don't have any OpenGL code. But it should be easy to do, as all matrices should be OpenGL compatible, and glm works well with OpenGL.

[junliu-cn]

@patrikhuber Alright, I not familiar with OpenGL but I will have a try.Thanks.

[wli75]

Apologies for the delay. The black line issue happens to all images. I guess it's a problem with the texture. For now I'm still using eos's rendering and doing something like this

for each vertex in mesh:
   project the vertex onto the 2d image
   assign the pixel color as the vertex colour

I don't know if this method is favourable. I'll experiment more with the texture some time in late-April.