how to find similarity between two imges or two audio signals using matlab?

I want to find similarities between two images(to give a secure place for watermark) or two speech signals(for key word spotting)?

1 Comment

Let me see... the similarity between this platypus and this chameleon is... right there, the slightly darker spot on each marks their cloaca !

Sign in to comment.

Answers (1)

there are many statistical tools that can be used for this purpose , ( rmse, Correlation, cross spectral density, ...etc), try the pairwise distance for example :
>>doc pdist

Categories

Find more on Simulation, Tuning, and Visualization in Help Center and File Exchange

Asked:

on 2 Sep 2013

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!