| (1) | procedure LungVolumeExtraction(input image, low, high) //beginning lung vol. extraction algorithm |
| (2) | I ⟵ input image //input image |
| (3) | O ⟵ Ø, Lo ⟵ low, Hi ⟵ high //output image, low and high threshold |
| (4) | DIm ⟵ Converting (I, double) //converting image to double image |
| (5) | for (i ϵ row length of DIm) //starting loop of extraction step |
| (6) | for (j ϵ column length of DIm) //starting of inner loop |
| (7) | if DIm(i, j) ≥ Lo and DIm(i, j) ≤ Hi then //starting of if |
| (8) | DIm(i, j) ⟵ 1; //assignment of binary 1 |
| (9) | else |
| (10) | DIm(i, j) ⟵ 0; //assignment of binary 0 |
| (11) | end if //ending of if |
| (12) | end for //ending of inner loop |
| (13) | end for //ending loop of extraction step |
| (14) | BI ⟵ Converting(DIm, binary) //converting image to binary image |
| (15) | FI ⟵ Morphological eroding, dilating, filling (BI) //morphological operations |
| (16) | GIm ⟵ Converting(FI, gray-scale) //converting image to gray-scale image |
| (17) | O ⟵ GIm //return output image |
| (18) | end procedure //ending of LUVEM method |
