Robust hashing for image authentication using quaternion discrete Fourier transform and log-polar transform
نویسندگان
چکیده
منابع مشابه
Robust hashing for image authentication using quaternion discrete Fourier transform and log-polar transform
In this work, a novel robust image hashing scheme for image authentication is proposed based on the combination of the quaternion discrete Fourier transform (QDFT) with the log-polar transform. QDFT offers a sound way to jointly deal with the three channels of color images. The key features of the present method rely on (i) the computation of a secondary image using a log-polar transform; and (...
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ژورنال
عنوان ژورنال: Digital Signal Processing
سال: 2015
ISSN: 1051-2004
DOI: 10.1016/j.dsp.2015.03.006