An image processing apparatus comprising: circuitry configured to: receive image content; receive metadata including luminance conversion information, which indicates an intention of a content producer, including a relationship between luminance values before and after conversion from a high dynamic range into a standard dynamic range at a plurality of points, wherein for a first point of the plurality of points the luminance value before conversion is a peak luminance value, Peak L HDR , in the high dynamic range and the luminance value after conversion is a peak luminance value, Peak L SDR , of the standard dynamic range; generate a conversion table to map the luminance values of the plurality of points on luminance values of the display, L Display , the display having a third dynamic range with a predetermined peak luminance, Peak L DISPLAY , based on the luminance conversion information included in the metadata and according to the formula: L Display i = L HDR i − L SDR i PeakL HDR − PeakL SDR × PeakL Display − PeakL SDR + L SDR i wherein L HDR (i) is luminance of high dynamic range content corresponding to an ith point of the luminance conversion information, L SDR (i) is luminance of standard dynamic range content corresponding to the ith point of the luminance conversion information, and L Display (i) is the luminance which is mapped for the display from the ith point of the luminance conversion information; and convert luminance of the image content based on the conversion table. receive image content; receive metadata including luminance conversion information, which indicates an intention of a content producer, including a relationship between luminance values before and after conversion from a high dynamic range into a standard dynamic range at a plurality of points, wherein for a first point of the plurality of points the luminance value before conversion is a peak luminance value, Peak L HDR , in the high dynamic range and the luminance value after conversion is a peak luminance value, Peak L SDR , of the standard dynamic range; generate a conversion table to map the luminance values of the plurality of points on luminance values of the display, L Display , the display having a third dynamic range with a predetermined peak luminance, Peak L DISPLAY , based on the luminance conversion information included in the metadata and according to the formula: L Display i = L HDR i − L SDR i PeakL HDR − PeakL SDR × PeakL Display − PeakL SDR + L SDR i wherein L HDR (i) is luminance of high dynamic range content corresponding to an ith point of the luminance conversion information, L SDR (i) is luminance of standard dynamic range content corresponding to the ith point of the luminance conversion information, and L Display (i) is the luminance which is mapped for the display from the ith point of the luminance conversion information; and convert luminance of the image content based on the conversion table. wherein L HDR (i) is luminance of high dynamic range content corresponding to an ith point of the luminance conversion information, L SDR (i) is luminance of standard dynamic range content corresponding to the ith point of the luminance conversion information, and L Display (i) is the luminance which is mapped for the display from the ith point of the luminance conversion information; and convert luminance of the image content based on the conversion table. <EOS>