Analysis of STM images

I m working on ZnO oxide powdered nano-particle. In these days i m doing analysis of STM images of given material.
Can anybody tell me about the tips of analysis of these images?
Best Regards, RSR
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.