Patent ID: 7561300

Claim:
An image processing apparatus for performing a color conversion on print data and outputting the print data on which the color conversion is performed to a printer unit, the image processing apparatus comprising: a first determining unit configured to determine whether monochrome output has been specified by a user; a second determining unit configured to determine whether each picture object included in the print data is a color object; a setting unit configured to set, for the print data, a first mode for calculating the color conversion for the print data at a high bit-depth or a second mode for calculating the color conversion at a low bit-depth based on results of the determinations by the first determining unit and the second determining unit; and a color conversion unit configured to perform the color conversion on the print data based on a mode set by the setting unit and to generate output data to be output by the printer unit, wherein the setting unit is configured to set the second mode when the first determining unit determines that the monochrome output has been specified by the user, wherein the setting unit is configured to set the first mode when the first determining unit determines that the monochrome output has not been specified by the user and the second determining unit determines that the color object is included in the print data, and wherein the setting unit is configured to set the second mode when the first determining unit determines that the monochrome output has not been specified by the user and the second determining unit determines that the color object is not included in the print data.