HDWTHave Detector Will Travel (website; metal detecting)
HDWTHave Dreams, Will Travel (motion picture; 2009)
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References in periodicals archive ?
In order to improve the steganog raphy performance in mobile devices, we carried out the wavelet decomposition through the Haar Discrete Wavelet Transformation Technique (HDWT) and the Daubechies Discrete Wavelet Transformation Technique (DDWT).
In the case of the DDWT, it is defined in the same manner as the HDWT. If the input signal f has N values, then, the transform level 1 for the dB4 is the signal mapping f, D1->(LH--HL) of signal f for the decomposition wavelet LH and HL.