Using DCT.mws for 2D-DCT Computation Demo
Short demo on ZigZag sequence and JPEG compression ratio

The dct.mws Maple Work Sheet  in implements a demonstation of 2D-DCT transformation.  You can click the link and download it to PCs in the PClab EN136, which are installed with Maple 10 Mathematics package, and then follow the following instruction for computing the transformed coefficients. It will prompt the message indicating the dct.mws was created with maple 5 and ask for converting in maple 10 language. Accept that upgrade suggestion. You may have to hit enter on each statement to execute them.