This document evaluates the performance of various routing techniques for wireless multimedia sensor networks (WMSNs). It proposes a new technique called RALEACH that decides a threshold value for cluster head election based on the ratio of current packet length to control packet length, as well as general and current state probabilities. Simulation results show that RALEACH improves network lifetime, data traffic sent, time until first node death, total rounds, and residual energy consumption compared to LEACH, ALEACH, and WALEACH routing protocols.