Patent ID: 8023164

Claim:
A color adjustment apparatus, comprising: a display device configured to display a graphical user interface that includes an editing image region; a parameter setting section; a degree of color change adjustment section; a phase range decision section; and a digital signal processing section coupled to the display device, and the parameter setting section, wherein, the parameter setting section includes a color information storage section configured to store color information regarding an arbitrary region designated via a pointer in the editing image region, a color coordinate explicitly displaying section configured to implement a process to display a mark on a hue ring and display a bar on a hue bar chart, which specifies color coordinates corresponding to the color information, a position of the mark and a position of the bar indicating the color information of the arbitrary region designated by the pointer, and a lightness interlocking section configured to acquire lightness information of a region designated via the pointer based on the color information and to interlock the display lightness of the hue ring or the hue bar such that a lightness of the arbitrary region designated by the pointer within the editing image region coincides with a lightness of the hue ring and hue bar chart, the phase range decision section is configured to determine if a color component of selected image data is within a phase range designated by a user, the graphical user interface includes a section enabling an adjustment of a degree of change between adjacent colors, the degree of change being a change in a relationship of a color component with respect to an angular phase of the color component, and the degree of color change adjustment section implements a color change relationship between the color component and the angular phase as determined by input from the graphical user interface if a result of the phase range decision section indicates that the selected image data is within the phase range.