Table 1 Arithmetic computation complexity assessment
From: Area and power efficient DCT architecture for image compression
Transform | Addition | Multiplication | Shifts |
|---|---|---|---|
DCT (by definition) | 56 | 64 | 0 |
Arai et al.[38] | 29 | 5 | 0 |
SDCT[17] | 24 | 0 | 0 |
Level 1 approximation[18] | 24 | 0 | 2 |
Bouguezel et al.[20] | 21 | 0 | 0 |
Bouguezel et al.[19] | 18 | 0 | 2 |
Bouguezel et al.[21] | 18 | 0 | 0 |
Bouguezel et al.[22] | 24 | 0 | 4 |
Bouguezel et al.[23] (a = 0) | 16 | 0 | 0 |
Bouguezel et al.[23] (a = 1) | 18 | 0 | 0 |
Bouguezel et al.[23] (a = 2) | 18 | 2 | 0 |
Senapati et al.[26] | 14 | 0 | 2 |
Cintra and Bayer[24] | 22 | 0 | 0 |
Bayer and Cintra[27] | 14 | 0 | 0 |
Transform in[29] | 16 | 0 | 0 |
Transform in[30] | 14 | 0 | 0 |
Proposed transform | 12 | 0 | 0 |