Apparatus and methods for editing hue and saturation in color profiles
AssigneeElectronics for Imaging, Inc.
InventorThor A. Olson
Life of this patent
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Abstract
Apparatus and methods are provided for editing color profiles. In particular, apparatus and methods in accordance with this invention receive an output color including a first hue, identify from the color profile a plurality of output color values that have a hue substantially equal to the first hue, provide a user interface that allows a user to create an edited output color including a second hue, and shift the hue of the identified plurality of output color values from the first hue to the second hue.
Claims28
A method for editing a color profile for an output device having a color gamut, the color profile comprising a plurality of output color values, the method comprising:
- obtaining a color profile from an output device having a color gamut, said color gamut including less than the full spectrum of color;
- receiving an output color comprising a first hue;
- identifying from the color profile a plurality of output color values that have a hue substantially equal to the first hue;
- displaying a user interface on a display that allows a user to create an edited output color comprising a second hue, said user interface including at least one slider bar displaying:
- the range of at least one color profile value along a first axis;
- and
- information indicating the output device's inability to print particular color profile values outside the color gamut;
- and
- shifting the hue of the identified plurality of output color values from the first hue to the second hue with the at least one slider bar.
A method for editing a color profile for an output device having a color gamut, the color profile comprising a plurality of output color values, the method comprising:
- obtaining a color profile from an output device having a color gamut, said color gamut including less than the full spectrum of color;
- receiving an output color comprising a first hue and a first lightness;
- identifying from the color profile a plurality of output color values that have a hue substantially equal to the first hue;
- displaying on a display device a two-dimensional cross-section of the color gamut along a constant lightness plane at the first lightness;
- displaying on the cross-section a projection of the identified plurality of output color values;
- providing a user interface on said display that permits a user to edit the output color to create an edited output color having a second hue, said user interface including at least one slider bar displaying:
- the range of at least one color profile value along a first axis;
- and
- information indicating the output device's inability to print particular color profile values outside the color gamut;
- shifting the hue of the identified plurality of output color values with the at least one slider bar from the first hue to the second hue;
- and
- displaying on the display device indicia of the output color and the edited output color on the cross section display.
A method for editing a color profile for an output device having a color gamut, the color profile comprising a plurality of output color values, the method comprising:
- obtaining a color profile from an output device having a color gamut, said color gamut including less than the full spectrum of color;
- receiving an output color comprising a first hue, a first lightness and a first relative saturation;
- identifying from the color profile a plurality of output color values that have a hue substantially equal to the first hue;
- displaying on a display device a two-dimensional cross-section of the color gamut along a constant lightness plane at the first lightness;
- displaying on the cross-section a projection of the identified plurality of output color values;
- providing a user interface on said display that permits a user to edit the output color to create an edited output color having a second relative saturation, said user interface including at least one slider bar displaying:
- the range of at least one color profile value along a first axis;
- and
- information indicating the output device's inability to print particular color profile values outside the color gamut;
- shifting the relative saturation of the identified plurality of output color values with the at least one slider bar by an amount equal to a difference between the first relative saturation and the second relative saturation;
- and
- displaying on the display device indicia of the output color and the edited output color on the cross section display.
A computer program product for editing a color profile for an output device having a color gamut, the color profile comprising a plurality of output color values, the computer program product having a storage medium with a computer program embodied thereon, the computer program comprising:
- computer program code for obtaining a color profile from an output device having a color gamut, said color gamut including less than the full spectrum of color;
- computer program code for receiving an output color comprising a first hue;
- computer program code for identifying from the color profile a plurality of output color values that have a hue substantially equal to the first hue;
- computer program code for providing a user interface on said display that allows a user to create an edited output color comprising a second hue, said user interface including at least one slider bar displaying:
- the range of at least one color profile value along a first axis;
- and
- information indicating the output device's inability to print particular color profile values outside the color gamut;
- and
- computer program code for shifting the hue of the identified plurality of output color values with the at least one slider bar from the first hue to the second hue.
Dependencies are inferred from the claim text.