DWT

Combined DWT-DCT digital image watermarkingThe double-density dual-tree DWTDWT-based technique for spatio-frequency masking of digital signaturesDWT-based technique for spatio-frequency masking of digital signaturesRobust DWT-SVD domain image watermarking:embedding data in all frequenciesA DWT-DFT composite watermarking scheme robust to both affine transform and JPEG compressionA comparison of DFT and DWT based similarity search in time-series databasesA new robust reference watermarking scheme based on DWT-SVDAsymptotically optimal detection for additive watermarking in the DCT and DWT domainsAsymptotically optimal detection for additive watermarking in the DCT and DWT domains.