Low-complexity 8-point DCT Approximations Based on Integer Functions
arXiv:1309.7604 · doi:10.1016/j.sigpro.2013.12.027
Abstract
In this paper, we propose a collection of approximations for the 8-point discrete cosine transform (DCT) based on integer functions. Approximations could be systematically obtained and several existing approximations were identified as particular cases. Obtained approximations were compared with the DCT and assessed in the context of JPEG-like image compression.
21 pages, 4 figures, corrected typos