how to detect border irregularity?

I have traced exterior boundaries of this region. now i want to have boundary box and centre of mass around it. How can I do this?

[joynob ahmed]

I want to get this actually

Answer 1

[KSSV]

If (x,y) are your boundary points.

% Get bounding box 
x0 = min(x) ; x1 = max(x) ;
y0 = min(y) ; y1 = max(y) ; 
% 
A = [x0,y0] ; 
B = [x1,y1] ; 

Also to get the center, you can find mean.

iwant = [mean(x) mean(y)] ; 

[joynob ahmed]

But how can I get (x,y) point? i have used this code for boundary determination.

[B,L] = bwboundaries(BW,'noholes');

imshow(label2rgb(L, @jet, [.5 .5 .5]))

hold on

for k = 1:length(B)

boundary = B{k};

plot(boundary(:,2), boundary(:,1), 'w', 'LineWidth', 2)

end

[KSSV]

B = cell2mat(B) ;  % assuming B is two columns 
x = B(:,2) ; y = B(:,1) ; 

[joynob ahmed]

No,it can't give me the bounding box and centre of mass. May be I have done some mistake. Please check this out.I have attached the resultant image with code:

[B,L] = bwboundaries(rotatedImage,'noholes');

imshow(label2rgb(L, @jet, [1 1 1]))

hold on

for k = 1:length(B)

boundary = B{k};

plot(boundary(:,2), boundary(:,1), 'black', 'LineWidth', 2)

end

% Get bounding box

B = cell2mat(B) ; % assuming B is two columns

x = B(:,2) ; y = B(:,1) ;

x0 = min(x) ; x1 = max(x) ;

y0 = min(y) ; y1 = max(y) ;

A = [x0,y0] ;

B = [x1,y1] ;

plot(A, B, 'r', 'LineWidth', 2)

iwant = [mean(x) mean(y)] ;

plot(iwant, 'g', 'LineWidth', 2)

[joynob ahmed]

can you help me with this please?

[KSSV]

Attach your original image.

[joynob ahmed]

[KSSV]

Attach B and L into mat file and share.

[joynob ahmed]

I have tried in 2 ways to detect border irregularity. Here I am taking help of an article where they have got success.I am adding both matfile and the article here.

[joynob ahmed]

KSSV,Have you seen the files?