There is an upper bound for the L1 norm of the difference of two nonnegative object functions when they both produce the same data in a digital imaging system. This bound is achieved for a certain class of systems and an arbitrary nonnegative object. For the L2 norm of the difference, with the same conditions on the object functions, there is no upper bound.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics