Digital camera, and signal processing method and signal processing apparatus for the same
AssigneeFUJIFILM Corporation
InventorTetsu Wada
Life of this patent
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Abstract
A signal processing method comprises: applying white balance correction to R (red), G (green), and B (blue) color signals output from a solid-state image pickup element so as to form white-balance corrected R, G, and B color signals; comparing levels of the white-balance corrected R, G, and B color signals with each other; correcting the level of the white-balance corrected G signal to coincide with a lower one of the levels of the white-balance corrected R and B color signals in the case where both of the levels of the white-balance corrected R and B signals are higher than the level of the white-balance corrected G signal when the G color signal is saturated; and outputting the white-balance corrected R, G, and B color signals as image signals.
Claims4
A signal processing method comprising:
- applying white balance correction to R (red), G (green), and B (blue) color signals output from a solid-state image pickup element so as to form white-balance corrected R, G, and B color signals;
- comparing levels of the white-balance corrected R, G, and B color signals with each other;
- correcting the level of the white-balance corrected G color signal to coincide with a lower one of the levels of the white-balance corrected R and B color signals in the case where both of the levels of the white-balance corrected R and B signals are higher than the level of the white-balance corrected G signal when the G color signal is saturated;
- and
- outputting the white-balance corrected R, G, and B color signals as image signals.
A signal processing apparatus which is configured to:
- apply white balance correction to R (red), G (green), and B (blue) color signals output from a solid-state image pickup element so as to form white-balance corrected R, G, and B color signals;
- compare levels of the white-balance corrected R, G, and B color signals with each other;
- correct the level of the white-balance corrected G color signal to coincide with a lower one of the levels of the white-balance corrected R and B color signals in the case where both of the levels of the white-balance corrected R and B color signals are higher than the level of the white-balance corrected G color signal when the G color signal is saturated;
- and output the white-balance corrected R, G, and B color signals as image signals.
Dependencies are inferred from the claim text.