Device, method, and recording medium for setting a readout method based on a zoom setting and identified threshold value

摘要

An imaging device (100) is provided with: an imager (1) that includes an imaging element with multiple pixels arranged two-dimensionally, and that outputs an image signal in accordance with setting of either a pixel addition readout method or a cutout readout method; a signal processor (2) that processes the image signal from the imager (1); an operator (3) that inputs operation information; a lightness detector (4) that detects a subject lightness; and a controller (5). The controller (5) includes a zoom setter (51) that sets a zoom magnification for a subject based on a zoom signal that is input by the operator (3), and a readout-method switching controller (52) that switches between the pixel addition readout method and the cutout readout method according to the zoom magnification set by the zoom setter (51) and the lightness detected by the lightness detector (4).

主权项

1. An imaging device comprising:
an imager including an imaging element with a plurality of pixels arranged two-dimensionally, reading out image signals from the plurality of pixels in accordance with a readout method that is set from either a pixel addition readout method for reading out image signals of a plurality of pixels in the imaging element as an image signal corresponding to a single pixel, or a cutout readout method for reading out image signals of all of pixels or part of pixels individually, and then outputting the image signals; a signal processor outputting a captured image defined by the image signals output by the imager; a zoom setter setting a zoom magnification based on a zoom signal for specifying the zoom magnification; a lightness detector detecting a subject lightness indicating brightness of the subject; and a readout-method switching controller identifying a threshold value corresponding to the subject lightness detected by the lightness detector based on a threshold characteristic that the threshold value changes according to the subject lightness, and setting the readout method based on a result obtained by comparing the set zoom magnification and the identified threshold value.