| 摘要 |
The correcting device includes a flicker correction circuit installed in an image shooting apparatus, which is configured to employ a complementary metal oxide semiconductor image sensor for shooting an image in a rolling shutter mode. An image is divided into M pieces in a vertical direction and N pieces in a horizontal direction. Then, areal average values are calculated by averaging pixel signals for each of the divided areas while an average of the areal average values for multiple frames are calculated for each of the divided areas, thereby calculating areal reference values that lack flicker components. A current frame of the image is corrected by use of the areal correction coefficients calculated from ratios of areal reference values to areal average values on the current frame. |
