Table 1.

Number of features from each feature type

Feature types	Number of regional features generated	Number of global features
$F{M}_{\mathrm{RG}}^{\mathit{\text{g}}}$	6 filters * 4 scales * 2 channels * 5 regions = 240	48
$F{M}_{\mathrm{RG}}^{\mathit{\text{texoff}}}$	20 * 10 offset values * 2 channels * 5 regions = 2000	400
$F{M}_{\mathrm{RG}}^{\mathit{\text{texscale}}}$	20 * 4 scales * 2 channels * 5 regions = 800	160
$F{M}_{\mathrm{RG}}^{\mathit{\text{dg}}}$	9 pairs * 3 channels * 5 regions = 135	27
$F{M}_{\mathrm{RG}}^{\mathit{\text{gab}}}$	4 scales * 5 gamma * 7 frequencies * 4 orientations * 2 channels * 5 regions = 5600	1120
$F{M}_{\mathrm{RG}}^{\mathit{\text{wav}}}$	5 families * 4 bands * 2 channels * 2 types * 5 regions = 400	80
Total	9175	1835