How to find euclidean distance between database and query image?

frnds pls help me to do this.I am trying to solve the problem denoted above.In this case i created ms access database and store the feature values on it,and the retrieval part i have a error to measure the euclidean distance value,between the database and query image feature vector

Answer 1

[Image Analyst]

Anything wrong with the Pythagorean theorem? Just compute the square root of the squares of the differences between your feature vector elements.

There is a database toolbox that you might find helpful for doing database operations.

[hema latha]

Thank u, i foud out the mistake,here i used the feature values are coefficient variance of discrete wavelet transform.The input arguments has minus valus that's the mistake but how to solve this.

Answer 2

[luis espeleta]

Hi, ca i use euclidean distance with a database in dB?

[Image Analyst]

You know the formula for dB so just use it to get the original linear values.