| perim - perimeter of binary shape |
p = perim(Img) |
| Img |
| binary array, 1 for object and 0 for background (double precision) |
| p |
| approximate perimeter of the shape inside Img |
| This is a simple routine to measure the perimeter of a 2D shape. It assumes border pixels as a polygonal line: adjacent border pixels has measure size 1 or sqrt(2). |
initial_dir = PWD;
chdir (SIPDIR + 'images');
Img = imread('star.bmp');
xbasc()
imshow(Img,2);
p = perim(Img)
chdir(initial_dir);
|
| Images are stored in double precision matrices. Hopefully, the next release will make usage of integer types. |
| Ricardo Fabbri <rfabbri@if.sc.usp.br> |
| The latest version of the Scilab Image Processing toolbox can be found at |
| http://siptoolbox.sourceforge.net |
| follow, bwborder, edge, im2bw |