二维快速余弦逆变换实例研究

STUDY ON AN EXAMPLE OF THE INVERSE FAST COSINE TRANSFORM OF TWO DIMENSIONS SYSTEM

阐述了二维快速余弦逆变换（ＩＦＣＴ），对用矩阵分解方法实现ＩＦＣＴ进行了分析，并给出了有助于编程实现的研究实例。

After explanation of the inverse fast cosine transform (IFCT) of two dimensions system, a method of performing IFCT is analyzed by means of the matrix analysis, furthermore, an useful example for programming performance is deduced too.