recover color on image

if true
 i  am converted rgb color image to im2bw format and gray scale image.
after i am extracted the boundary then i want to stored the the clolored image.
please tell how to manage the color then recoveror apply color for gray scale image and im2bw image
end

[Walter Roberson]

This looks like it is really the same question as your previous one.

[Image Analyst]

I'm not even sure what this means. Once you've thrown away the color info, it's gone, at least in those binary and gray images. Of course you still have the original rgb color image so you don't need to recover anything because you have the original.

[Walter Roberson]

I think it means that they want to overlay the boundary lines on the color image.