how to enter mask

Hi sir,

I want to enter this mask given below to 288*543.

288*543 contains initially 1000 as non object and 0 as object.

To that I have to enter this mask,

mask=[1.414,1,1.414; 1,1,1000; 1000,1000,1000];

and I need to apply this algorithm,

d_new(i,j)=min([d_new(i,j);1+d_new(i+1,j); 1.41+d_new(i+1,j+1);1+d_new(i,j+1);1.41+d_new(i-1,j+1)]);

and i need to update the values by d_new(i,j)

How can I achieve this in for loop.

Thanks in advance.

Answer 1

[Image Analyst]

Do you mean to replicate the mask out to a size of 288-by-543? Like this:

workspace;
% Initial 3-by-3 mask.
mask=[1.414,1,1.414; 1,1,1000;  1000,1000,1000]
% Make copies out to a size of 288-by-543
mask2 = repmat(mask, [96, 181]);

[Image Analyst]

Regarding your edited question and new "Answer" (which is the same as your question now, and I'll probably delete)...your mask is 3-by-3 (9 elements) whereas your "algorithm" only has 5 elements. How do you reconcile that?

Answer 2

[vetri veeran]

Hi sir,

I want to enter this mask given below to 288*543.

288*543 contains initially 1000 as non object and 0 as object.

To that I have to enter this mask,

mask=[1.414,1,1.414; 1,1,1000; 1000,1000,1000];

and I need to apply this algorithm,

d_new(i,j)=min([d_new(i,j);1+d_new(i+1,j); 1.41+d_new(i+1,j+1);1+d_new(i,j+1);1.41+d_new(i-1,j+1)]);

and i need to update the values by d_new(i,j)

How can I achieve this in for loop.

Thanks in advance.