三、图像的变换编码 1、图像的自适应余弦变换编码 X channel DCT Coding Decoding DCT- Subimage Classification X Block diagram of adaptive cosine transform coding 2004.12.82004.12.8 三、图像的变换编码 1、图像的自适应余弦变换编码 x DCT Coding Decoding Subimage Classification X channel −1 DCT' x Block diagram of adaptive cosine transform coding