| 摘要 |
An adaptive two-dimensional fast DCT (Discrete Cosine Transform) encoding method capable of encoding an image in a mobile communication terminal, reducing an amount of operations, and reducing power consumption adaptively using a fast DCT method. In a first step, a smoothness (N) of a block image to be processed is determined. Then fast DCT encoding in a row direction for the block image performed and operation values not exceeding the smoothness (N) are output. Next, fast DCT encoding in a column direction for the block image is performed by using result values obtained from the fast DCT encoding operation in the row direction and only operation values not exceeding the smoothness (N) are output.
|
