TABLE 4.
Structural feature | Qualitative description | Mathematical description |
---|---|---|
Local Binary Pattern (LBP) | Intensity variation between a pixel and its neighboring pixels. |
Ic and Ip are gray-level intensity values for pixel (xc,yc) and pixel (xp,yp). q = indicator function, 0 for negative inputs and 1 for non-negative inputs.Q, P = parameters to set pixel neighborhood size, set to 1 and 8, respectively.39,40 |