| 摘要 |
This invention concerns the spatial interpolation of colour images and, in particular, the reconstruction, or "de-mosaicing" of data from a single sensor-array electronic camera. Electronic cameras typically have an image sensor comprising a matrix of individual pixel sensors, each sensor being responsive to a colour component. In order to obtain colour component information for all pixels, in accordance with the disclosed embodiment, green component pixel values ( 203 ) are interpolated to obtain green component pixel values for all pixels ( 209 ). A difference value (B-G) ( 212 ) is formed from the green colour component values ( 207 ) and the original blue component values ( 204 ) at blue pixel locations, and the difference values (B-G) ( 212 ) are then interpolated to obtain difference values for all pixels ( 216 ). Blue component values for all pixels ( 225 ) can then be obtained from the difference values for all pixels ( 216 ) and the green component values for all pixels ( 209 ).
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