On what basis an image can be searched from a research perspective?

I am student and going to start research in Field Image Retrieval. I want help about:

On what basis an image can be searched from a research perspective?

How many classification are there?

Means in Image Retrieval where should i go?

[jgg]

This is not really a Matlab question is it?

[Walter Roberson]

Honey Barbie comments,

Sorry Sir Jgg. But I wanted to know because I am going to Implement a research paper in MATLAB.

Answer 1

[Walter Roberson]

Anything that is measurable in an image is grounds for retrieval. Mean, median, variance, percentage of occurrence of a named color, number of ellipses with a given eccentricity, texture properties...

Anything that is deducible in an image is grounds for retrieval. Estimated gender, estimated ethnicity, estimated species, estimated age, estimated brand, estimated location, estimated personal identity, deduced clan from tartan, estimated action taking place, estimated emotion, and so on.

Answer 2

[Image Analyst]

Just search for CBIR (content based image retrieval). There are lots of strategies - too many to list here. Even explaining one for you would be too much of a chore for me.