How to find adjacent object of an labeled image?

Consider the attached labeled image of 10 objects. Each object is denoted by a numeric value 1-10.

I want to count adjacent objects for each that it shares a border with. For example for object 2 it shares the border with 1 and 3. So input will be 2 and output will be 1 and 3.

For the case of 7. Input 7, Output 3,4,6,8,9,10

Answer 1

[Image Analyst]

This can be done with graycomatrix(). Trust me. Please think about it and try it yourself first.

[Casio Uploader]

Thanks, It worked... Just few lines of code for other help:

glcms=graycomatrix(Labled Image);

kkkk=glcms(:,SupNum); %if you want to find neibours of 1,then input SupNum=1

[rrrr,~]=find(kkkk>0); aa=find(rrrr==SupNum); rrrr(aa)=[];

%%rrrr is output matrix which contains the neighbours of 1(or your desired one)