| 摘要 |
According to one embodiment, a backlight control apparatus includes a conversion unit which, upon receipt of a video signal in the YCbCr standard, converts the video signal into a video signal in the RGB standard, a generation unit which select one signal of the maximum gradient based on pixel-by-pixel comparison of the R video signal, G video signal, and B video signal to generate a histogram in which the gradient of the selected signal is successively plotted, filter units which detect a histogram having a specific distribution from histograms generated by the generation unit, and control units which generate and output a control signal in accordance with a detection result from the filter units.
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