Optimized Architecture Using a Novel Subexpression Elimination on Loeffler Algorithm for DCT-Based Image Compression

Table 5

Microstatistics of 1D DCT calculation.

Method	NEDA [19]	CORDIC	[37]	Xilinx’s core	Proposed
Slices	1031	780	531	369^2	454

²Apart from the number 369 slices Xilinx core uses 4 embedded multipliers.