# Histogram equalization – Equalizes the histogram of the unmasked part of the image.
# Pixel normalization – scales the pixel values to have a mean of zero and a standard deviation of one.
* default face normalization parameters from CSU FacePerf program:
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** default face normalization parameters /* default normalization parameters */ #define ELLIPSE_X 65.0 #define ELLIPSE_Y 50.0 #define ELLIPSE_A 64.0 #define ELLIPSE_B 118.0
#define EDGE_PRE 0 #define EDGE_POST 0
#define EYE_LX 30.0 #define EYE_LY 45.0 #define EYE_RX 100.0 #define EYE_RY 45.0
#define SIZE_WIDTH 130 #define SIZE_HEIGHT 150
#define NOISE 0.0 #define SCALE 1.0 #define SHIFT_X 0.0 #define SHIFT_Y 0.0
#define HIST_NONE 0 #define HIST_PRE 1 #define HIST_POST 2
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