How do i set scale in Image Processing Toolbox?

I have managed to pull out some data after my image quantication process in regards to: - Area - Perimeter - etc. They all display values in terms of pixels, but I want to convert this data to micrometers, so they are displayed as such by Matlab. How do I do this? The dimensions are: - XSPACING: 0.096395 - YSPACING, 0.096395)

[awezmm]

This would depend on the resolution that the camera took the image at. You could then just multiply the pixels by the resolution ratio