| 摘要 |
PURPOSE:To perform signal correction in a high speed against the dispersion in image pickup elements and the change in the condition of pickup, by analogically operating the output value of a solid-state image pickup device and a reference data. CONSTITUTION:A data of a reference objective read with a solid-state image pickup element 1 is stored in a reference data memory 3 via an AD converter 2. Next, a measuring objective is picked up and the output is transmitted to an analg divider 5. Simultaneously, a reference data is read out from the memory 3 and given to the analog divider 5 via a DA converter 4 and the ratio is operated. The processing is made under the control of a control logic 6. Thus, a video output which can be corrected in a high speed against the dispersin of image pickup elements and the change in the pickup condition. |
