Terms Definitions
USB

Universal serial bus, a digital interface for connecting up to 64 devices in a tiered-star topology. See http://www.usb.org.

The adjustment of electronic still picture color channel gains or image

White Balance processing so that radiation with relative spectral power distribution equal to that of the scene illumination source is rendered as a visual neutral.

Source: ISO/WE 12231 Photography-- Electronic still-picture cameras -- Terminology

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