PPT Slide
Theoretical Foundations of Multimedia Chapter 6
How Precise is the Reversal?
- A mathematical function (f) is applied to the
original data (d) to produce the modified data (m)
- That is, mi= f(di) for every data element (di) of
- For example, mi= sine(di)
- The tradeoff is the acceptable distortion after
reversal dr = fr (mi) vs. the amount of compres-