| 摘要 |
An imaging device performs optimum focus correction at low cost with an autofocus device that moves a lens for focusing an image. The imaging device includes a camera signal processing part having a contrast signal generation part that extracts a high frequency component from a video signal and generates a contrast signal of the video signal based on the extracted high frequency component. The imaging device also has a controller that performs focus control based on the contrast signal. The controller performs an ON/OFF control of an infrared rays cut filter and includes a recording part to hold a set value of an ON/OFF state of the infrared rays cut filter. The camera signal processing part includes a signal conversion processing part to change a ratio of RGB of the video signal to be sent to the contrast signal generation part based on the set value.
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