Loop-filtering method for image data and apparatus therefor

摘要: A loop-filtering method for reducing quantization effect generated when an image data is encoded and decoded, apparatus therefor. The includes the steps of extracting a flag indicating whether requires using distribution inverse quantized coefficients (IQCs) motion vector difference between previous frame current frame. corresponding to then filtered by predetermined if extracted indicates need loop-filtering. Using flags adaptive filter reduces useful reduce amount computation required filtering. Also, filtering can be performed through parallel processing without multiplication division, so that complexity hardware reduced.