Heating cooker

A heating cooker comprising:

• a heating cavity operable to accommodate a heating target;
• an imager operable to capture an image of an interior of the heating cavity;
• an exposure controller operable to perform exposure control;
• and
• a photometering target detector operable to extract gray level information of a photometering target from the image captured by the imager, the photometering target being a part of an entirety of the image, wherein:
• the exposure controller is operable to perform the exposure control based on the gray level information obtained from the image captured by the imager,
• the photometering target detector is operable to extract the gray level information by performing a filtering process on the entirety of the image captured by the imager, and
• the filtering process includes at least one of a higher gray level-pass filtering process, a contrast filtering process or a chromaticity filtering process.