How to write matlab code for feature matrix extraction from blocks of image using the given algorithm?

How to write matlab code for feature matrix extraction from blocks of image using the given algorithm? The algorithm is

WERE Pixel value Hx,y is the sum of RGB color values of pixel and M represents the median of all pixel values (Hx1,y1, . . . ,Hxb,yb in a block of N. and

[B.k Sumedha]

what kind of feature extraction is this.Does the algorithm have a name?

[Anushka]

No sir the algorithm doesnot have a name.The output of this algorithm is used as a share in a VC technique.

[David Young]

There is no information as to how M, f, Qs, Qc are calculated. It's pretty vague about how H is calculated. See this information about how to ask a question.

[Anushka]

Sorry I have edited the same.

[Anushka]

pnoise is value given by user.