Digital camera having correction of center positions of color pixels generated by mixing of pixels of the same color

摘要

In a digital camera by the use of a CCD of a honeycomb array, the center positions of mixed pixels of colors B and G are fixed in (4k+1)th and (4k+2)th rows, wherein k represents an integer 0 or more, while the center positions of mixed pixels (mixed pixels R 11 and R 15 ) of a color R in the (4k+1)th row are required to be shifted to positions indicated by circles drawn by dotted lines in FIG. 4, as indicated by arrows in FIG. 4. For example, pixel values of the mixed pixels R 11 and R 15 are weighed in a weighing ratio of 1:3 so as to take a weighted average (i.e., (R 11 +3R 15 )/4) in such a manner that the center position of the mixed pixel R 15 is shifted to a position obtained by dividing the distance between the center positions of the mixed pixels R 11 and R 15 at 3:1.