pattern matching

is there any specific algorithm for pattern matching.how to match the pattern of an image with another image for finding an object in an image

Answer 1

[Image Analyst]

No. There are thousands of them. See this link for a list of some of them http://iris.usc.edu/Vision-Notes/bibliography/contentspattern.html#Pattern%20Recognition,%20Clustering,%20Statistics,%20Grammars,%20Learning,%20Neural%20Nets,%20Genetic%20Algorithms