Table 3.
Extracted features from the pap-smear images
| Nucleus | Cytoplasm | ||
|---|---|---|---|
| 1 | Nucleus area (NA): The actual number of pixels in nucleus. A pixels area is 0.201 µm2 | 16 | Cytoplasm area (CA): The actual number of pixels inside the nucleus cytoplasm |
| 2 | Nucleus gray level: The average perceived brightness of the nucleus from Eq. (1) | 17 | Cytoplasm gray level: The average perceived brightness of the cytoplasm. Calculated using Eq. (1) |
| 3 | Nucleus shortest diameter: The biggest diameter a circle can have when the circle is totally encircled within the nucleus | 18 | Cytoplasm shortest diameter: This is the biggest diameter a circle can have when the circle is totally encircled of the cytoplasm |
| 4 | Nucleus longest diameter: This is the shortest diameter a circle can have when surrounding the whole nucleus | 19 | Cytoplasm longest diameter: This is the shortest diameter a circle can have when surrounding the whole cytoplasm |
| 5 | Nucleus elongation: The ratio between the shortest and longest diameter of the nucleus | 20 | Cytoplasm elongation: The ratio between the shortest diameter and the longest diameter of the cytoplasm |
| 6 | Nucleus roundness: The ratio between the actual area and the area bound by the circle given by the longest diameter of the nucleus | 21 | Cytoplasm roundness: The ratio between the actual area and the area bound by the circle given by the longest diameter of the cytoplasm |
| 7 | Nucleus perimeter: The length of the perimeter around the nucleus | 22 | Cytoplasm perimeter: The length of the perimeter around the cytoplasm |
| 8 | Maxima in nucleus: Maximum number of pixels inside of a three-pixel radius of nucleus | 23 | Maxima in cytoplasm: Maximum number of pixels inside of a three-pixel radius of cytoplasm |
| 9 | Minima in nucleus: Minimum number of pixels inside of a three-pixel radius of nucleus | 24 | Minima in cytoplasm: Minimum number of pixels inside of a three-pixel radius of nucleus |
| 10 | Nucleus to cytoplasm ratio: The relative size of the nucleus to the cytoplasm. | 25 | Nucleus relative position: A measure of how well the nucleus is centred in the cytoplasm |
| 11 | Nucleus solidity: The proportion of the pixels in the convex hull that is also in the nucleus | 26 | Nucleus compactness: The ratio of area and square of the perimeter of the nucleus |
| 12 | Nucleus eccentricity: The eccentricity of the ellipse that has the same second-moments as the nucleus region | 27 | Nucleus mean: The mean gray values of the nucleus region |
| 13 | Nucleus standard deviation: The deviation of gray values of the nucleus region | 28 | Nucleus smoothness: The local variation in radius lengths of the nucleus region |
| 14 | Nucleus variance: The variance value of the gray values inside the nucleus region | 29 | Nucleus energy: The energy of gray values of the nucleus region |
| 15 | Nucleus entropy: The entropy of gray values of the nucleus region |