An image capturing apparatus includes an image sensor and a processor. The image sensor includes an imaging plane that receives an image of a shooting target field through color filters according to two or more wavelength regions and outputs a signal of the image of the shooting target field. The processor is configured to set a larger weight for a wavelength region having a higher image forming performance than for a wavelength region having a lower image forming performance in accordance with a high-resolution direction determined in the image of the shooting target field, generate image data based on the signal output by the image sensor, and detect an object in the generated image data.