  Two multiplierless pruned 8-point discrete cosine transform (DCT)
approximation are presented. Both transforms present lower arithmetic
complexity than state-of-the-art methods. The performance of such new methods
was assessed in the image compression context. A JPEG-like simulation was
performed, demonstrating the adequateness and competitiveness of the introduced
methods. Digital VLSI implementation in CMOS technology was also considered.
Both presented methods were realized in Berkeley Emulation Engine (BEE3).
