How to change colour (black to white) in binary image?

Dear all,

I have this binary image:

I would like to convert the colours black into white and white into black. Is it possible? I also attach this binary image. Thank you for your answers.

[eton lin]

Veronika, you can use NOT operator: imshow(~BW)

Answer 1

[Guillaume]

yourbwimage = ~yourbwimage

Simple as that, or

yourbwimage = logical(1 - yourbwimage)