Enhanced Region Growing for Brain Tumor MR Image Segmentation

. 2021 Feb 1;7(2):22. doi: 10.3390/jimaging7020022

Algorithm 1 Skull Stripping

1:
input: gray scale image, $i m$
2:
Calculate Otsu’s Threshold

$T \leftarrow g r a y t h r e s h (i m)$
3:
Threshold the image

$B W \leftarrow i m 2 b w (i m, T)$
4:
Open the binary image using a disk structuring Seed

$B W \leftarrow i m o p e n (B W, s e)$
5:
Dilate the binary image

$B W \leftarrow i m d i l a t e (B W, s e)$
6:
Select the largest binary image

$B W \leftarrow l a r g e s t_b l o b (B W)$
7:
Dilate the binary image

$B W \leftarrow i m c l o s e (B W, s e)$
8:
Fill holes on the binary image

$B W \leftarrow i m f i l l (B W, s e)$
9:
Remove the skull

$s t r i p p e d \leftarrow i m (! B W) = 0$
10:
return $s t r i p p e d$