how can i retain rgb color to segmented image (binary)?

i have a result of background substraction (binary image) from the rgb input image (origin)...i wanna retain colors to the object extracted

Answer 1

[Thorsten]

If the binary image B is 1 where the object is in image I, use

 O = I.*B;

If the image has more layers than B, you can use

O = bsxfun(@times, I, B);

Answer 2

[bayrem rem]

this is the message error

Answer 3

[bayrem rem]

[Walter Roberson]

Then your v and your w are not the same size.

Is one of them 2 dimensional and the other 3 dimensional?

[Thorsten]

I added a solution to this case in my original answer. If something is unclear or does not work, please use comments instead of posting new answers.