| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image processing system and an image processing method capable of applying suitable gradation conversion processing of a gradation characteristic to RAW data photographed in accordance with arbitrary exposure criteria and suitably changing the exposure of images according to the preference of a user. <P>SOLUTION: An image pickup unit 3 performs image pickup to acquire data before image processing before being applied with at least gradation conversion processing, and in generating an image file 5 on the basis of the data before image processing, an exposure reference value stored in an exposure reference value storage unit 2 is recorded together with the data before image processing. An image processor 21 corrects the exposure reference value recorded in the image file 5 when an exposure correction instruction is made, and selects a gradation conversion table from a gradation conversion table storage 25 on the basis of the corrected exposure reference value. Then, gradation conversion processing of the data before image processing is performed in a gradation conversion/inverse gradation conversion processor 24 on the basis of the selected gradation conversion table. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
