a setting unit configured to set a target region;

a first acquisition unit configured to acquire a plurality of texture data for applying a metal representation on an image;

a second acquisition unit configured to acquire an output condition when outputting the target region;

a selection unit configured to select texture data based on the output condition; and

an application unit configured to apply, to the target region, the texture data selected by the selection unit,

wherein the selection unit selects texture data from the plurality of texture data based on skewness of a histogram of luminance contrast data when the plurality of texture data are output, and

wherein (a) at least one processor and at least one memory, (b) circuitry, or (c) circuitry, at least one processor, and at least one memory are configured to act as a plurality of units comprising the first acquisition unit and the second acquisition unit.