Neighborhood Gray Tone Difference Matrix (NGTDM).

CAN ANY ONE HELP ME OUT WITH Neighborhood Gray Tone Difference Matrix (NGTDM). I AM NOT FINING THEORY OR MATERIAL TO IMPLEMENT THE CODE ,PLEASE HELP ME OUT

Answer 1

I've never heard of that. Are you sure you're not talking about the "gray level co-occurrence matrix" performed by graycomatrix() in the Image Processing Toolbox?

no it is ngtdmhttp://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=44046&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D44046
the Paper has the details about it...but not able to get the results as tabulated in the fig1 of the paper,

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=44046
in case above link does not work....
where ever i find the concept of ngtdm ,the above paper is the reference
thanks in advance

Sounds like some special purpose algorithm that they invented in that paper. There are thousands of papers with thousands of algorithms. If you're lucky, someone coded up this particular paper into MATLAB and then uploaded it to the File Exchange, but you'd have to be VERY lucky.

the problem here is not understanding the calculation ,once ma thematic part is understood can somehow code it

it is a simple matrix solution...but works for only certain value

I thought you said "I AM NOT FINING THEORY OR MATERIAL" meaning that you didn't know any article that described the algorithm. But it sounds like now, that you do (you gave the citation) - and you say it is simple. So, can you program it up in MATLAB?

yes i found the required material now...will soon come up with code

Answer 2

Hello, Do you mean for a image M*N you would like to create a matrix M*N *M*N such that the elements are values of the gray difference?