Image processing device and medium storing image processing program

An image processing device, comprising:

• a color information obtaining part obtaining at least hue from color information of each pixel of a color image;
• a detecting part detecting a mode value of the hue on a color space;
• a range setting part setting a predetermined range on the color space including the mode value of the hue detected by the detecting part as a target range;
• a changing part changing hue of a pixel included in the target range by virtually performing extension on the target range;
• and
• an information converting part converting color information of a pixel having hue not included in the target range into color information of a single hue different from the hue to be changed by the changing part.

A computer-readable medium storing an image processing program, causing a computer to execute:

• a color information obtaining operation of obtaining at least hue from color information of each pixel of a color image;
• a detecting operation of detecting a mode value of the hue on a color space;
• a range setting operation of setting a predetermined range on the color space including the mode value of the hue detected in the detecting operation as a target range;
• a changing operation of changing hue of a pixel included in the target range by virtually performing extension on the target range;
• and
• an information converting operation of converting color information of a pixel having hue not included in the target range into color information indicative of an achromatic color.

A computer-readable medium storing an image processing program, causing a computer to execute:

• a color information obtaining operation of obtaining at least hue from color information of each pixel of a color image;
• a detecting operation of detecting a mode value of the hue on a color space;
• a range setting operation of setting a predetermined range on the color space including the mode value of the hue detected in the detecting operation as a target range;
• a changing operation of changing hue of a pixel included in the target range by virtually performing extension on the target range;
• and
• an information converting operation of converting color information of a pixel having hue not included in the target range into color information of a single hue different from the hue to be changed in the changing operation.