Methods and apparatus for video intraprediction encoding and decoding are provided. The method includes dividing an input block into at least two areas; performing intraprediction on pixels of a first area using pixels of a neighboring block; determining spatial characteristics of pixels of the first area around a pixel of a second area, and determining reference pixels of the first area for prediction of the pixel of the second area based on the spatial characteristics; and predicting the pixel of the second area based on the determined reference pixels of the first area. The apparatus includes a block division unit which divides a block into at least two areas; an intraprediction unit which performs intraprediction; and an interpolation unit which determines spatial characteristics of pixels of the first area, determines reference pixels, and predicts the pixel of the second area based on the reference pixels of the first area. |