| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image processing device and an image processing method for deriving gradation conversion characteristics at high speed without increasing a circuit size or a memory. <P>SOLUTION: A compression image generating unit 1 generates a compressed image data for the input image data. A gradation conversion characteristic deriving unit 2 derives gradation conversion characteristics from the compressed image data generated in the compression image generating unit 1. A WB control information deriving unit 3 derives white balance control information of the input image from the compressed image data generated at the compression image generating unit 1. A WB control unit 4 controls the white balance of the input image data based on the white balance control information derived by the WB control information extracting unit 3. In a gradation conversion unit 5, the image data with the white balance controlled by the WB control unit 4 is subjected to gradation conversion, based on the gradation conversion characteristics which were derived by the gradation conversion characteristic extracting unit 2, so that the obtained image data is output to the outside. <P>COPYRIGHT: (C)2007,JPO&INPIT |
