direction dependent mask

[musharaf]

Can anyone tell me ,how to apply direction dependent mask on an image[/img][/code]

 

[helios]

A weighted mask which can give u the direction of the next pixel is called the direction mask, usually direction masks are used over a binary image .

  DMASK =   4 3 2
                   5 0 1
                   6 7 8


Multiply the DMASK with the image block of same size and now the center pixel will be 0 and its the orgin, then u have the direction by means of weights of the near by piixels, and u can traverse the image depening on the direction of u r choice,

google ' chain code'  algo  which uses direction masks over a binary image  for more info

hope it helped u a little