Visual Social Semiotics: Understanding How Still Images Make Meaning
http://www.ingentaconnect.com/content/stc/tc/2003/00000050/00000001/art00007
  access restricted (by the publisher) to members/subscribers/customers only
  peer-reviewed

Harrison, Claire
Technical Communication Online
2003

Abstract:

Presents a framework for analyzing imagery in multi-modal print documents and Web sites. Demonstrates how images and text work together to make meaning for readers/users. Provides analytical tools and tips to help choose still images to enhance textual messages.