Color conversion apparatus and method for selectively adjusting input image colors

A color conversion method of selectively adjusting input colors, the method comprising:

• converting an input color signal to a color signal in a color space that is based on a luminance component and a chromaticity component;
• determining whether the input color signal of each pixel is in a particular gamut to which the color is converted, within the whole color gamut of a color reproducing apparatus;
• performing a color conversion of the input color signal according to a shape of the particular gamut using a reference color, which is a reference of a conversion amount of the input color signal and present in the particular gamut, and a target color which is converted from the reference color;
• and
• converting the input color signal, which is converted to the color space having the luminance component, to a color signal in a color space displayable on the color reproducing apparatus.

At least one computer readable medium storing instructions that control at least one processor to perform a method of selectively adjusting input color signals, the method comprising:

• converting an input color signal to a color signal in a color space that is based on a luminance component and a chromaticity component;
• determining whether the input color signal of each pixel is in a particular gamut to which the color is converted, within the whole color gamut of a color reproducing apparatus;
• performing a color conversion of the input color signal according to a shape of the particular gamut using a reference color, which is a reference of a conversion amount of the input color signal and present within the particular gamut, and a target color which is converted from the reference color;
• and
• converting the input color signal, which is converted to the color space having the luminance component, to a color signal in a color space displayable on the color reproducing apparatus.