| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that interpolates pixel values for imaging with high precision even when there is an outline, a fine line structure or the like at the position of a focus detecting pixel. SOLUTION: An image processing device includes: a storing unit 9 storing the position of a focus detecting pixel of an image-capturing sensor 2 which contains a plurality of imaging pixels having spectroscopic characterizations corresponding to respective a plurality of color components and a focus detecting pixel having spectroscopic characterization different from the spectroscopic characterizations of the plurality of imaging pixels; a pixel interpolating unit generating an interpolation pixel value of the focus detecting pixel by using a pixel value of one of imaging pixels in the neighborhood of the focus detecting pixel in an image generated by the image-capturing sensor; a neighborhood-pixel estimating unit calculating an estimation pixel value corresponding to a pixel value when one of the pixels in the neighborhood of the focus detecting pixel has the same spectroscopic characterization as the focus detecting pixel; a high-frequency component calculating unit calculating a high frequency component of the image by using a pixel value of the focus detecting pixel and the estimation pixel value; and a high frequency component adding unit adding the interpolation pixel value with the high frequency component to calculate a pixel value of the focus detecting pixel for imaging. COPYRIGHT: (C)2010,JPO&INPIT
|
