Patent ID: 11889242
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method of reducing noise in an input image corresponding to a color filter array of an image sensor, the method comprising:
setting, as a local window among color pixels included in the input image, a target pixel and neighboring pixels adjacent to the target pixel;
determining color pixel values for the target pixel and each of the neighboring pixels included in the local window;
generating local color average values by averaging, color by color, the color pixel values;
generating offset color pixel values by converting the color pixel values of the target pixel and the neighboring pixels based on the local color average values; and
generating a compensated color pixel value of the target pixel by adjusting the color pixel value of the target pixel based on the offset color pixel values.