Question about using negative_mask

[vbmark]

I want to keep the face only and change the rest of the image. However, random things in the image are not masked.

Instead of selecting everything to mask, how do I indicate to mask everything except the face?

[txt2mask neg_padding=16 neg_smoothing=30 negative_mask="face" show]person|background|clothing|house|glass|table|dog|floor[/txt2mask]man in space suit in space ship

Thank you.

[vbmark]

Found [invert_mask]