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DCT-like Transform for Image Compression Requires 14 Additions Only (1702.00817v1)
Published 2 Feb 2017 in cs.MM, cs.DS, stat.AP, and stat.CO
Abstract: A low-complexity 8-point orthogonal approximate DCT is introduced. The proposed transform requires no multiplications or bit-shift operations. The derived fast algorithm requires only 14 additions, less than any existing DCT approximation. Moreover, in several image compression scenarios, the proposed transform could outperform the well-known signed DCT, as well as state-of-the-art algorithms.