| 摘要 |
PROBLEM TO BE SOLVED: To improve efficiency in the manual adjustment of the color balance of the image processor. SOLUTION: The image processor 4 is subjected to gradation correction processing using a correction curved line set based on a correction quantity, with respect to plural respective designated density values of a reference correction curved line to data on an image. In performing output gradation correction processing with the adjustment of the correction quantity, an increase/decrease correction quantity calculation part 12 sets an increase/decrease correction quantity to be used for correcting a correction curved line. An output gradation correction processing part 11 outputs the image pattern of a density corresponding to a designated density value given the gradation correction processing using the correction curved line at that time, the image pattern of a density corresponding to the designated density value given the gradation correction processing using the correction curved line corrected by using the increase/ decrease correction quantity and the increase/decrease correction quantity, with respect to the designated density value on a paper by an image output device. An operator adjusts a correction value manually, while confirming a paper to which the image pattern is outputted. |
