The Seven Invariant Moments

Calculates the Seven Invariant Moments in terms of centralized Moments

Description

Two function files that can be applied on an image to calculate the seven invariant moments defined by Hu(1962)in terms of centralized Moments for purpose of shape recognition . The function to be used directly by the user is
feature_vec(A),where A is a 2D matrix representing an image.
Inside this function another function :cent_moment(p,q,A)is called to calculate the normalized central moments
You can use it in separate.But you don't need to do so when using feature_vec(A)
Attached with the two functions is a pdf file containing short mathematical notes about the theory of Invariant Moments.

• Required Products: MATLAB
• MATLAB release: MATLAB 7.8 (R2009a)

[Elvis Condori]

Muy buena contribución.

[Long]

 

[Omid]

 

[Ishrat Badami]

 

[Ishrat Badami]

 

[Ishrat Badami]

Lot of redundant calculations. Also instead of using lot of for loops you can try efficient matrix multiplication.

[shobhit]

ans this pls
http://www.mathworks.in/matlabcentral/answers/28455-image-feature-extraction-using-invariant-moments