Recording device and recording method using the same
AssigneeSamsung Display Co., Ltd.
InventorIsamu Ryu
Life of this patent
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Abstract
A device is provided that includes a subtraction portion that outputs a difference value between a target totalizing value, obtained by accumulating a luminance value of a target pixel up to a current frame, and a reference totalizing value corresponding to a luminance value of a reference pixel, adjacent the target pixel, accumulated up to the current frame; a quantization portion that quantizes the difference value and outputs a quantization value; and a quantization error correction portion that corrects the quantization value at a correction frame selected based on a quantization step of the quantization value and a quantization error of the quantization value.
Claims13
A device, comprising:
- a subtractor that outputs a difference value between a target totalizing value, obtained by summing a luminance value of a target pixel in a current frame and luminance values of the target pixel in previous frames, and a reference totalizing value, obtained by summing a luminance value of a reference pixel in the current frame and luminance values of the reference pixel in the previous frames, the reference pixel being adjacent the target pixel;
- a quantizer that quantizes the difference value and outputs a quantization value using a quantization method having a quantization step and a quantization error;
- and
- a quantization error corrector that corrects the quantization value at a correction frame based on the quantization step and the quantization error, wherein the quantization step is number of levels used in the quantization method.
A method comprising:
- outputting a difference value between a target totalizing value, obtained by accumulating a luminance value of a target pixel in a current frame and luminance values of the target pixel in previous frames, and a reference totalizing value, obtained by summing a luminance value of a reference pixel in the current frame and luminance values of the reference pixel in the previous frames, the reference pixel being adjacent the target pixel;
- quantizing the difference value and outputs a quantization value using a quantization method having a quantization step and a quantization error;
- and
- correcting the quantization value at a correction frame that is selected based on the quantization step and the quantization error, wherein the quantization step is number of levels used in the quantization method.
Dependencies are inferred from the claim text.