Abstract
This paper presents sub-band coding techniques suitable for both on-chip CFA(color filter array) for single CCD camera and wired logic. Enough compression ratio and image quality are obtained applying SSKF(symmetric short kernel filter) horizontally and vertically to red and blue color signals from square grid CFA, and two dimensional perfect reconstruction filter to a green color signal from quincunx CFA. Also, a comparative investigation of three image compression methods; DPCM, Hadamard transform, and sub-band coding, was made, which allows an output signal from CCD in a color camera to be compressed directly.
