Image processing apparatus, image processing method, and electronic apparatus

An image processing method, comprising:

• in an image processing apparatus;
• acquiring a first pixel signal output from a first pixel;
• acquiring a second pixel signal output from a second pixel having a size smaller than that of the first pixel;
• acquiring a temperature of a pixel unit that comprises the first pixel and the second pixel;
• determining a composition gain corresponding to the acquired temperature;
• and
• composing the first pixel signal, and the second pixel signal multiplied by the composition gain.

An electronic apparatus comprising:

• a solid-state image sensor mounted on the electronic apparatus, wherein the solid-state image sensor comprises:
• a pixel unit, wherein
• the pixel unit comprises a plurality of first pixels and a plurality of second pixels, and
• each of the plurality of second pixels having a size smaller than that of each of the plurality of first pixels;
• and
• a central processing unit (CPU) configured to:
• acquire a first pixel signal output from a first pixel of the plurality of first pixels;
• acquire a second pixel signal output from a second pixel of the plurality of second pixels;
• acquire a temperature of the pixel unit;
• determine a composition gain corresponding to the acquired temperature;
• and
• compose the first pixel signal, and the second pixel signal multiplied by the composition gain.