Bayer CFA Interpolation
A Bayer filter mosaic (shown below – image by Wikepedia) is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. Its particular arrangement of color filters is used in most single-chip digital image sensorsused in digital cameras, camcorders, and scanners to create a color image. The filter pattern is 50% green, 25% red and 25% blue, hence is also called RGBG.
MRA Digital’s Bayer CFA interpolation IP Core utilizes a robust technique for demosaicing of color images produced by CMOS and CCD image sensors. Our algorithm implementation utilizes a linear filter leads to an improvement in PSNR of over 4.5 dB when compared to bilinear demosaicing, and about 0.7 dB improvement in R and B interpolation. The proposed filter also outperforms most nonlinear demosaicing algorithms, without the artifacts due to nonlinear processing, and a much reduced computational complexity.
RGB and CMY Bayer image sensor support
High quality interpolation
8, 10, and, 12 bit input and output precision
FPGA and ASIC
Digital Still Camera
Mobile Phone Camera