Method and apparatus with color conversion
AssigneeSamsung Electronics Co., Ltd.
InventorsYang Ho Cho, Geonwoo Kim, Sung Kwang Cho, Dong Kyung Nam
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Abstract
An electronic device includes an image sensor including a color filter having a plurality of color channels, a memory storing a plurality of color conversion matrices and instructions, and a processor. The processor is configured to obtain noise information of a color image captured by the image sensor, select a target matrix from among the plurality of the color conversion matrices based on the obtained noise information, and generate a color converted image by applying the selected target matrix to the color image.
Claims25
An electronic device comprising:
- an image sensor comprising a color filter having a plurality of color channels;
- a memory storing a plurality of color conversion matrices and instructions;
- and
- a processor configured to:
- obtain noise information of a color image captured by the image sensor;
- select a target matrix from among the plurality of the color conversion matrices based on whether the obtained noise information meets a threshold;
- and
- generate a color converted image by applying the selected target matrix to the color image,
- wherein the noise information comprises any one or any combination of any two or more of a noise scale representing variation between raw color values of pixels in the color image, an exposure time corresponding to the color image, a focal number (f-number) of a camera including the image sensor, an International Organization for Standardization (ISO) value of the camera, and a white balance gain value applied to the color data used to generate the color image.
A processing-implemented method performed by the electronic device, the method comprising:
- generating noise information, by a processor component of the electronic device, of a color image captured by an image sensor, as another component of the electronic device, comprising a color filter comprising a plurality of color channels;
- and
- selecting a target matrix from among a plurality of color conversion matrices based on whether the obtained noise information meets a threshold, and performing a color conversion of the color image by applying the selected target matrix to the color image,
- wherein the noise information comprises any one or any combination of any two or more of a noise scale representing variation between raw color values of pixels in the color image, an exposure time corresponding to the color image, a focal number (f-number) of a camera including the image sensor, an International Organization for Standardization (ISO) value of the camera, and a white balance gain value applied to the color data used to generate the color image.
An electronic device comprising:
- an image sensor comprising a color filter having a plurality of color channels;
- and
- a processor configured to:
- obtain noise information of a color image captured by the image sensor;
- differently select a target matrix, from among a plurality of color conversion matrices, dependent on whether the obtained noise information meets a threshold to generate a color converted image;
- and
- generate the color converted image by applying the selected target matrix to the color image,
- wherein the noise information comprises any one or any combination of any two or more of a noise scale representing variation between raw color values of pixels in the color image, an exposure time corresponding to the color image, a focal number (f-number) of a camera including the image sensor, an International Organization for Standardization (ISO) value of the camera, and a white balance gain value applied to the color data used to generate the color image.
Dependencies are inferred from the claim text.