How do I get rid of shadows on face photos for 3d models

[rich2005]

You could try the dodge / burn tool for lightening. Use the fuzziest brush available. Larger brush size than you think necessary. Experiment with settings for opacity / hardness / force. Just 'dab' (single click) on the area. Not too much or it is nasty not a tool I favour. Other than that, depends on the image, might be possible to clone adjacent areas in.

Example: https://imgur.com/srbOiju.jpg