METHOD AND APPARATUS FOR DYNAMIC CORRECTION OF MICROSCOPIC IMAGE SIGNALS

摘要

A circuit for correcting an image signal received from a camera (102) which includes a plurality of charge coupled devices (102) each for providing a light (112) signal indicative of the intensity of light incident thereon; the plurality of light signals are indicative of an image received by the camera (102). A correction circuit (212) includes: a gain memory (206) for storing a plurality of gain correction factors each associated with a respective charge coupled device, and an offset memory (214) for storing a plurality of offset correction factors each associated with a respective one of the plurality of charged coupled devices (102). The gain memory (206) is responsive to a control circuit (210) for multiplying (208) the plurality of electric signals by the appropriate gain correction factor. Similarly, the offset memory (214) is responsive to a control circuit (210) for adding (216) the appropriate one of the plurality of offset correction factors with the signal from its respective charge coupled device (102).