Illumination normalization using down-scaling of low-frequency DCT coefficients in DWT domain for face recognition.
Tripti GoelVijay NehraVirendra P. VishwakarmaPublished in: IC3 (2013)
Keyphrases
- illumination normalization
- low frequency
- dct coefficients
- face recognition
- high frequency
- robust face recognition
- histogram matching
- dct domain
- face images
- frequency domain
- intrinsic images
- local binary pattern
- wavelet transform
- face recognition systems
- illumination variations
- subband
- discrete wavelet transform
- intensity images
- feature extraction
- wavelet coefficients
- high resolution
- feature vectors
- face verification
- natural images
- feature analysis
- single image
- high quality
- discrete cosine transform
- image compression
- face recognition algorithms
- spatial domain