| 摘要 |
An image processing apparatus includes an image input unit for inputting color image data, a first color conversion unit for converting the inputted color image data into first image data of the L*a*b color space having independently brightness component and chromaticity component, a background detection unit for detecting a background color component from the converted first image data of the L*a*b color space, a background removing unit for converting, based on a white value conversion parameter derived based on a ratio of the background color corresponding to the background component to a prescribed reference white color in the L*a*b color space, the first image data into second image data having the background color in white, a second color conversion unit for converting the second image data of the L*a*b color space into third image data of a prescribed color space, and an output unit for outputting the converted third image data of the prescribed color space.
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