| 摘要 |
A method and apparatus for compensating for sensitivity variations in image sensors. The sensing surface of an image sensor is arbitrarily divided into a plurality of detection elements. A field of uniform brightness is presented to the image sensor and the video signal from each detection element is multiplied by a corresponding correction value. The altered video signal is compared to a reference and the corresponding correction value is either incremented or decremented so that the altered video signal approaches the reference. During operation, the video data received from each detection element is multiplied by the corresponding correction value to produce corrected video data.
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