Image processing method and device
AssigneeSamsung Electronics Co., Ltd.
InventorsByung-seok Min, Jong-man Kim
Life of this patent
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Abstract
An image processing method includes obtaining color information of each of a plurality of pixels included in an input image signal; determining whether a color value of each of the plurality of pixels corresponds to a gamut boundary of the input image signal based on the obtained color information; determining a gain value for allowing the color value of at least one of the plurality of pixels to correspond to the gamut boundary, based on a result of the determining; and converting the color value of the at least one pixel based on the determined gain value.
Claims13
An image processing method comprising:
- obtaining color information of each of a plurality of pixels included in an input image signal;
- determining whether a color value of each of the plurality of pixels corresponds to a gamut boundary of the input image signal based on the obtained color information;
- determining whether a color value of at least one pixel, that is determined to not correspond to the gamut boundary, is included in a preset preservation color;
- and
- converting the color value of the at least one pixel according to a gain value determined based on whether the color value of the at least one pixel is included in the preset preservation color,
- wherein a gain value of a first pixel among the at least one pixel, that has a color value that is included in the preset preservation color, is determined as a threshold value preset to the preservation color,
- wherein a gain value of a second pixel among the at least one pixel, that has a color value that is not included in the preset preservation color, is determined as a value for allowing the color value to correspond to the gamut boundary, and
- wherein a threshold value for each of a plurality of preservation colors is set differently.
An image processing apparatus comprising:
- at least one processor configured to obtain color information of each of a plurality of pixels included in an input image signal,
- to determine whether a color value of each of the plurality of pixels corresponds to a gamut boundary of the input image signal based on the obtained color information, to determine whether a color value of at least one pixel, that is determined not to correspond to the gamut boundary, is included in a preset preservation color, and to convert the color value of the at least one pixel according to a gain value determined based on whether the color value of the at least one pixel is included in the preset preservation color,
- wherein a gain value of a first pixel among the at least one pixel, that has a color value that is included in the preset preservation color, is determined as a threshold value preset to the preservation color,
- wherein a gain value of a second pixel among the at least one pixel, that has a color value that is not included in the preset preservation color, is determined as a value for allowing the color value to correspond to the gamut boundary, and
- wherein a threshold value for each of a plurality of preservation colors is set differently.
Dependencies are inferred from the claim text.