Scanner color correction device and control method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorMin Ki Cho
Life of this patent
Estimating the term…
Abstract
A color correction apparatus of a scanner and a method of controlling the same. The color correction apparatus changes data existing outside of the gamut boundary to the other data existing within a gamut boundary in order to correctly express a gamut, and correctly corrects the color of the scanner. The color correction apparatus includes a calculator to calculate CIE data corresponding to RGB data, and a correction unit to change the CIE data to new CIE data existing within a gamut boundary if it is determined that the CIE data exists outside of the gamut boundary.
Claims20
A color correction apparatus usable in a scanner, comprising:
- a calculator to calculate CIE data corresponding to RGB data;
- an estimation unit to estimate a color-correction calculation equation using the RGB data and the CIE data;
- and
- a correction unit to change the CIE data to new CIE data existing within a gamut boundary if it is determined that the CIE data exists outside of the gamut boundary,
- wherein the calculator calculates CIE data corresponding to all of RGB data using the estimated color-correction calculation equation.
A color correction apparatus usable in a scanner, comprising:
- a decision unit to determine if a gamut volume created by an ICC profile exists outside of a color-measurement gamut volume created by CIE data formed by color measurement of a reference-color chart;
- and
- a correction unit to change the gamut volume to a new gamut volume existing within the color-measurement gamut volume if the gamut volume exists outside of the color-measurement gamut volume.
A color correction apparatus, comprising:
- a scan input unit to receive RGB data formed by the scanning of a reference-color chart;
- and
- a color-measurement input unit to receive CIE data formed by color measurement of the reference-color chart;
- an estimation unit to estimate a color-correction calculation equation using the RGB data and the CIE data;
- a calculation unit to calculate CIE data corresponding to all of RGB data using the RGB data and the CIE data;
- and
- a correction unit to change the CIE data to new CIE data existing within a pre-stored gamut boundary if it is determined that the CIE data exists outside of the gamut boundary,
- wherein the calculation unit calculates CIE data corresponding to all of RGB data using the estimated color-correction calculation equation.
A method of controlling a color correction apparatus of a scanner, comprising:
- receiving RGB data by the scanner formed by the scanning of a reference-color chart;
- receiving CIE data by a color management device formed by color measurement of the reference-color chart;
- estimating, by an estimation unit, a color-correction calculation equation using the RGB data and the CIE data;
- calculating, by a calculating unit, CIE data corresponding to all of the RGB data using the color-correction calculation equation;
- determining in a decision unit whether the CIE data exists outside of a pre-stored gamut boundary;
- and
- changing the CIE data in a correction unit to new CIE data existing within the gamut boundary if the CIE data exists outside of the gamut boundary.
A method of controlling a color-correction apparatus of a scanner, the method comprising:
- creating a gamut volume using an ICC profile in a gamut storage unit;
- creating a color-measurement gamut volume in a calculating unit using CIE data formed by color measurement of a reference-color chart;
- determining whether the gamut volume exists outside of the color-measurement gamut volume by a decision unit;
- and
- determining in a determining unit that if the gamut volume exists outside of the color-measurement gamut volume, changing, in a correction unit the gamut volume to a new gamut volume existing within the color-measurement gamut volume.
A color correction apparatus, comprising:
- a decision unit to compare a first color data with a predetermined range;
- an estimation unit to estimate a color-correction calculation equation using RGB data and a first CIE data;
- and
- a correction unit to change the first color data into a second color data if the first color data is outside of the predetermined range,
- wherein the first color data is the first CIE data and the predetermined range is a predetermined gamut boundary, such that the correction unit changes the first CIE data into a second CIE data if the estimated color-correction calculation equation determined that the first CIE data was outside a predetermined gamut boundary.
A non-transitory computer readable recording medium having embodied thereon a computer program to execute a method, wherein the method comprises:
- receiving RGB data formed by the scanning of a reference-color chart;
- receiving CIE data formed by color measurement of the reference-color chart;
- estimating a color-correction calculation equation using the RGB data and the CIE data;
- calculating CIE data corresponding to all of the RGB data using the color-correction calculation equation;
- determining whether the CIE data exists outside of a pre-stored gamut boundary;
- and
- changing the CIE data to new CIE data existing within the gamut boundary if the CIE data exists outside of the gamut boundary.
A non-transitory computer readable recording medium having embodied thereon a computer program to execute a method, wherein the method comprises:
- creating a gamut volume using an ICC profile;
- creating a color-measurement gamut volume using CIE data formed by color measurement of a reference-color chart;
- determining whether the gamut volume exists outside of the color-measurement gamut volume;
- and
- if the gamut volume exists outside of the color-measurement gamut volume, changing the gamut volume to a new gamut volume existing within the color-measurement gamut volume.
Dependencies are inferred from the claim text.