MadSci Network: Computer Science

Re: Discrete Cosine Transform sizes in JPEG

Date: Tue Nov 7 09:31:39 2000
Posted By: Todd Jamison, Staff, Image Science, Observera, Inc.
Area of science: Computer Science
ID: 973389292.Cs

The inverse DCT is very similar to the DCT - just as the Inverse Fourier 
Transform is similar to the Fourier Transform.  There are myriad resources 
on the web that can give the exact equations you seek.  I went to HOTBOT (my 
fave search engine at and searched on "Discrete Cosine 
Transform" and got many pages giving the equations and more background than 
you probably care to know about. 

Good luck.
Todd Jamison

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