| 摘要 |
PURPOSE: A data processing method is provided to process the data formed in the input data image efficiently, and to improve the image quality by combining ringing artifact processing method and blocking artifact processing method by detecting ringing noise. CONSTITUTION: A data processing method comprises a calculation step(ACT) of a spatial activity value of a current pixel based on values(Y) of the current pixel and pixels adjacent thereto, a determination step(NND) of a non-natural uniform area(NN) if the spatial activity value of various consecutive pixels is lower than a first predetermined threshold value, a gradient filter step(GF) of values of the pixels adapted to detect(THR1) strong edges(SE) inside the image, a detection step(RD) of a ringing artifact, and a filter step(FIL) of values of the pixels in a filtering area which is located between a non-natural uniform area and a strong edge which are close together and where at least a ringing artifact is detected. |
