Patent ID: 7843600

Claim:
An information processing method performed by an information processing apparatus including a processor, for converting input color data including a plurality of color component data and black component data into output color data including a plurality of color component data and black component data, the input color data being dependent on a source device and the output color data being dependent on a destination device, the information processing method comprising: obtaining a source profile corresponding to the source device and a destination profile corresponding to the destination device, wherein the destination profile includes a first color conversion from a device dependent color space into a device-independent color space and a second color conversion from a device-independent color space into a device dependent color space; determining whether a black-printing compensation is applied; obtaining a relationship between lightness levels and black color based on the first color conversion of the destination profile; determining whether the input color data indicates a simple black color; outputting, by the processor, in a first case that the black-printing compensation is applied and the input color data indicates a simple black color, color data for the simple black color having a lightness level equivalent to a lightness level of the input color data, based on the source profile and the obtained relationship between lightness levels and black color; outputting, by the processor, in a second case that the black-printing compensation is not applied, color data by using the source profile and the second color conversion of the destination profile without using the obtained relationship between lightness levels and black color; and outputting, by the processor, in a third case that the black-printing compensation is applied and the input color does not indicate the simple black color, color data by using the source profile and the second color conversion of the destination profile without using the obtained relationship between lightness levels and black color, wherein a value of the plurality of color component data included in the input color data determined as the simple black color is 0.