Dominant Feature Extraction in Block-DCT Domain.
Tienwei TsaiYo-Ping HuangTe-Wei ChiangPublished in: SMC (2006)
Keyphrases
- dct domain
- dct coefficients
- feature extraction
- feature vectors
- image blocks
- blocking artifacts
- discrete cosine transform
- frequency domain
- spatial domain
- transform domain
- compressed domain
- jpeg images
- post processing
- preprocessing
- compressed images
- low frequency
- block boundaries
- jpeg compression
- low pass filtering
- wavelet transform
- quantization step
- digital video
- human visual system
- feature selection
- feature space
- block dct
- image processing
- video transcoding
- watermarking algorithm
- image classification
- principal component analysis
- digital images
- image compression
- image resizing
- pattern recognition
- face recognition
- binary images
- face images
- visual quality
- subband
- image quality
- feature set
- low level
- computational complexity