Imaging apparatus, control method for imaging apparatus, and non-transitory computer-readable storage medium

A control method for an imaging apparatus provided with an image sensor and an interpolation unit, the image sensor including a plurality of focus detection pixels for generating a focus detection image and a plurality of imaging pixels for generating a captured image in which a subject is captured, the plurality of focus detection pixels being arranged in a predetermined direction, the interpolation unit interpolating a pixel value in a position of a first focus detection pixel among the plurality of focus detection pixels, the control method comprising:

• a step in which the interpolation unit executes first interpolation processing for performing interpolation using a pixel value of an imaging pixel surrounding the first focus detection pixel;
• a step in which the interpolation unit executes second interpolation processing for performing interpolation using pixel values of a plurality of focus detection pixels neighboring the first focus detection pixel;
• and
• a step in which the interpolation unit generates the pixel value in the position of the first focus detection pixel by combining output from the first interpolation processing and output from the second interpolation processing, or by selecting one of the outputs.

A non-transitory computer-readable storage medium storing a computer program for causing an interpolation unit of an imaging apparatus to execute the following steps, the imaging apparatus being provided with an image sensor and the interpolation unit, the image sensor including a plurality of focus detection pixels for generating a focus detection image and a plurality of imaging pixels for generating a captured image in which a subject is captured, the plurality of focus detection pixels being arranged in a predetermined direction, and the interpolation unit interpolating a pixel value in a position of a first focus detection pixel among the plurality of focus detection pixels:

• a step of executing first interpolation processing for performing interpolation using a pixel value of an imaging pixel surrounding the first focus detection pixel;
• a step of executing second interpolation processing for performing interpolation using pixel values of a plurality of focus detection pixels neighboring the first focus detection pixel;
• and
• a step of generating the pixel value in the position of the first focus detection pixel by combining output from the first interpolation processing and output from the second interpolation processing, or by selecting one of the outputs.