Image Dilation

I have a monar color (gray color) image (face Image)and i need to apply the dilation operation to the image. this image is 3D image and the dilation codes need to be used to shape the image. I tryed the codes in the Help but i couldnt able to understand it. pls give me some instruction about what type of coding i shoud used and how they can be used.

eg: image file is 'user-001-c.bmp'

[Andreas Goser]

Please explain what a 3D image is.

[Nilushi Dissanayake]

In here the 3D image is a face image which is a Disparity image

Answer 1

[Sean de Wolski]

 doc imdilate
 doc bwdist
 doc convn