Inspec keywords: image classification; face recognition; hyperspectral imaging; discrete wavelet transforms; feature extraction

Other keywords: 3D discrete wavelet transform-based feature extraction; three-dimensional discrete wavelet transform; feature vector datasets; 3D-subband energy; 3D-subband overlapping cube; facial hyperspectral image analysis; horizontal information; facial hyperspectral image classification; spectral information; 3D-global energy; hyperspectral face recognition; vertical information; spatio-spectral frequency subbands; k-NN; collaborative representation-based classifier

Subjects: Image recognition; Computer vision and image processing techniques; Integral transforms; Integral transforms