It is made such that a user can easily and appropriately evaluate luminance of an HDR video signal.A luminance evaluation value is obtained by processing the HDR video signal. The luminance evaluation value is displayed on a display unit. For example, the HDR video signal is a linear HDR video signal and/or the HDR video signal obtained by performing gradation compression on the linear HDR video signal with a log curve characteristic. For example, the luminance evaluation value includes an average picture level, a high light share ratio, a high light average picture level, a product value of the high light share ratio and the high light average picture level and the like.