An ebook Guide to Free Camera Manuals

The Bayer filter pattern is a repeating pattern of 2 × 2 mosaic of light filters, with green ones at opposite corners and red and blue in the other two positions. The high proportion of green takes advantage of human visual system characteristics, which determines brightness mostly green and is far more sensitive to brightness than to hue or saturation. A standard 4-color filter is sometimes used, often involving two different shades of green. This provides a potentially more accurate color, but requires a slightly more complicated process of interpolation.