Patent ID: 8953234
Filing Date: 2015-02-10
Classification: H04N

Abstract:
1. An image processing apparatus that performs color correction processing of a color signal that is associated with each pixel of image data to be printed on a printing medium and includes a plurality of components in a predetermined color space, the image processing apparatus comprising: a memory configured to store a conversion table having a plurality of table parameters, each of the table parameters being assigned for each of a nozzle or a predetermined number of nozzles used for printing in a common region of the printing medium in a plurality of nozzle arrays, respectively, the plurality of nozzle arrays ejecting a plurality of inks including a first ink and a second ink having a different color from the first ink; a correction unit configured to perform the color correction processing for the color signal using at least one of the table parameters assigned to a nozzle corresponding to the color signal of the each pixel; a first output unit configured to output a signal that causes the plurality of nozzle arrays to eject at least both of the first and second inks in a common region of the printing medium so as to print a test color image; a first reception unit configured to receive information on a color correction region to be subjected to color correction in the test color image, the information being based on a result of the output of the test color image output by the first output unit; a generation unit configured to generate a plurality of correction candidate values used for the color correction processing for at least one of the color signals corresponding to the color correction region in the test color image; a second output unit configured to output a signal that causes the plurality of nozzle arrays to print a plurality of different color correction images on the printing medium, the plurality of different color correction images being subjected to a plurality of different types of color correction processing with use of the plurality of correction candidate values; a second reception unit configured to receive information on a color correction image selected from the plurality of different color correction images, the information being based on a result of the output of the plurality of different color correction images output by the second output unit; and a formation unit configured to form at least one of the table parameters based on the color correction processing corresponding to the selected color correction image, the at least one of the table parameter being assigned to a nozzle corresponding to the color correction region, wherein the first and second reception units display the test color image and a plurality of color correction images on a display unit, and receive information related to the color correction region and color correction processing via an input unit, and wherein the first and second reception units further display nozzle position information on the display unit, wherein the test color image and color correction images are associated with the nozzle position information.