Patent ID: 11922608
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. An image processing method, comprising:
receiving image data;
determining a first reference value and a second reference value corresponding to a plurality of consecutive pixels of the image data, wherein the first reference value and the second reference value are respectively a highest luminance value and a lowest luminance value of two edge pixels of the plurality of consecutive pixels after being processed by the image processing method;
calculating a center luminance value according to the first reference value and the second reference value; and
determining output luminance values of the plurality of consecutive pixels according to the image data, the first reference value, the second reference value and the center luminance value;
wherein the step of determining the first reference value and the second reference value corresponding to the plurality of consecutive pixels of the image data further comprises:
for each pixel of the plurality of consecutive pixels, calculating a cumulative luminance value increment and a cumulative luminance value decrement; and
determining the first reference value and the second reference value according to luminance values of the plurality of consecutive pixels, the cumulative luminance value increment and the cumulative luminance value decrement;
wherein the cumulative luminance value increment corresponding to a pixel is obtained by adding a subtraction result to the cumulative luminance value increment corresponding to the pixel at a previous position when the luminance value of the pixel is greater than the luminance value of the pixel at the previous position, wherein the subtraction result is calculated by subtracting the luminance value of the pixel at the previous position from the luminance value of the pixel.