Comments on ‘Area and power efficient DCT architecture for image compression’ by Dhandapani and Ramachandran

Abstract

Abstract In [Dhandapani and Ramachandran, “Area and power efficient DCT architecture for image compression”, EURASIP Journal on Advances in Signal Processing 2014, 2014:180] the authors claim to have introduced an approximation for the discrete cosine transform capable of outperforming several well-known approximations in literature in terms of additive complexity. We could not verify the above results and we offer corrections for their work.

Keywords

• DCT approximations
• Low-complexity transforms