Title: DCT-like Transform for Image Compression Requires 14 Additions Only,
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.