Cost Effective Demosaicing Directly Producing YCBCR 4:2:0 Output

In order to reduce the hardware size and cost, many digital still cameras use a single sensor array equipped with a color filter array to capture any one of the three primary color components on each pixel location. Demosaicing process is used to reconstruct the RGB color image. Generally, conversion from RGB to YCbCr format is preferred for compressing the demosaiced images. But, most of the color interpolation techniques produce RGB output image. In this paper a novel effective edge preserving, edge directed inter-plane weighted interpolating technique directly producing YCbCr 4:2:0 image is proposed for color interpolation. Experimental results show that the proposed method performs much better than other latest techniques in terms of PSNR, at a notably low computational complexity. Keywords: Interpolation, Demosaicing, YCbCr color model, Compression, CFA.