| 摘要 |
An image-sensing apparatus has an area sensor 1 that outputs image data by logarithmically converting the brightness of light incident thereon, a black-level detector 2 for detecting the black level BL of the image data at which the image data has the lowest signal level, a white-level detector 3 for detecting the white level WL of the image data at which the image data has the highest signal level, a calculation formula determiner 4 for determining, in accordance with the detected black and white levels BL and WL, the formula to be used to convert the signal level of the image data, and a dynamic range converter 5 for converting the signal level of the image data using the calculation formula determined by the calculation formula determiner 4.
|
