Patent ID: 11962923
Assignee: SK HYNIX INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A method of operating an image processing device, the method comprising:
receiving pixel values of a plurality of pixels indicating an image;
changing a pixel value of a first target pixel by using an average pixel value of neighboring pixels included in a predetermined range of the first target pixel in which noise is generated among the plurality of pixels;
obtaining a first decimal fraction value which is a value corresponding to a decimal fraction part of an average pixel value corresponding to the first target pixel;
changing a pixel value of a second target pixel by using an average pixel value of neighboring pixels included in a predetermined range of the second target pixel in which the noise is generated among the plurality of pixels;
generating an accumulation value obtained by accumulating a second decimal fraction value which is a value corresponding to a decimal fraction part of an average pixel value corresponding to the second target pixel and the first decimal fraction value; and
compensating for the pixel value of the first target pixel or the pixel value of the second target pixel based on the accumulation value,
wherein compensating for the pixel value of the first target pixel or the pixel value of the second target pixel comprises:
selecting any one of the first target pixel and the second target pixel; and
adding one (1) to the pixel value of the any one selected target pixel when the accumulation value is greater than or equal to a predetermined reference value, and subtracting one (1) from the accumulation value.