Table 2.
Characteristics of border detection methods (nr: not reported, KL{C}: KL transform of the C color space)
| Ref. | Year | Mode | Color Space (# Channels) | Preprocessing Steps | Segmentation Method |
|---|---|---|---|---|---|
| [12] | 2008 | Auto | RGB (3) | Marginal MF, Black frame removal | Region-Based |
| [16] | 2008 | Auto | L*a*b* (3) | nr | Clustering |
| [9] | 2008 | Auto | IHP{RGB} (1) | Contrast enhancement, Hair removal [15] | Clustering |
| [26] | 2007 | Semi | Luminance (1) | GF | Active Contours |
| [26] | 2007 | Auto | RGB (3) | nr | Active Contours |
| [19] | 2007 | Auto | RGB (3) | Marginal MF, Approx. Lesion Localization | Region-Based |
| [21] | 2006 | Auto | B / RGB (1) | GF | Thresholding |
| [20] | 2006 | Auto | RGB (3) | nr | Clustering |
| [27] | 2005 | Auto | Luminance (1) | GF, Auto. Snake Initialization | Active Contours |
| [28] | 2003 | Auto | L*u*v* (3) | Marginal MF | Clustering |
| [29] | 2002 | Auto | KL{L*a*b*} (2) | GF | Clustering |
| [30] | 2001 | Auto | KL{RGB} (1) | Marginal MF | Thresholding |
| [31] | 2000 | Semi | L*a*b* (3) | nr | Active Contours |
| [32] | 2000 | Auto | I / HSI (1) | MF | Soft Computing |
| [11] | 1999 | Auto | KL{L*u*v*} (2) | MF | Clustering |
| [33] | 1999 | Auto | L*a*b* (3) | Vector ADF, Hair removal | Morphological |
| [34] | 1998 | Auto | RGB (3) | nr | Region-Based |
| [34] | 1998 | Auto | KL{RGB}(1) | nr | Model-Based |