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Why mouth always open
I found the mouth is always opened or at least have a leap even that the photo's mouth is closed.Can you add a option make the mouth closed? And can you transfer the model to a full model that has indepedent eyes and closed head and mouth?
Regarding the mouth, that's probably because some of the blendshape coefficients (e.g. the one(s) that open the mouth?) are not exactly zero after the fitting. You could have a look at which blendshapes open the mouth, and then set this/these coefficients to zero, or not fit them.
And can you transfer the model to a full model that has indepedent eyes and closed head and mouth?
I'm not sure I understand correctly, but this is out of the scope of my current research. I'm very happy to get contributions though.
How to adjust the blendshape for mouth? I can send you a model to illustrate my thought,so can you give a email address that could receive attatched file?
I'm not sure what you mean, can you elaborate? You can upload files to GitHub issue.
I can't upload the zip file,so I upload a png file to illustrate.I think it's useful to transfer the face just having part mesh of head to the whole head. Like the loomai.com.

I read the doc and still can't find how to adjust the blendshape to close the mouth,can you give me some instruction?
Definitely having the ability to add a full head or transfer the fitted face to a full head would be a very welcome addition!
This has also been discussed before, see e.g. #23, #53, #57.
To fiddle around with the blendshapes you'd need to export them to obj's or something and have a look at them in a graphics program (MeshLab/Blender or something). You can also save an obj with a mesh generated from blendshapes that have only the smile coefficient equal to 1, do this for all blendshapes, and then check which modify the mouth. You can then try setting these specific coefficients to zero after fitting to an image, before you generate the mesh.
Hello,
Is there any way know to man (kidding) to convert from .bin to .obj and the other way around ?
Thank you.