1. A discrete cosine transform coefficient prediction method comprising: performing a discrete cosine transform on a row and column of pixel blocks, nearest to a transform coefficient to be predicted in a discrete cosine transform block to be predicted among pixel blocks adjacent to the discrete cosine transform block to be predicted, and creating prediction coefficients for the transform coefficient to be predicted; and creating a prediction value for the transform coefficient to be predicted using a difference between the created prediction coefficients and the transform coefficient to be predicted, and predicting the transform coefficient to be predicted based on the prediction value.