Direct algorithm for digital image restoration
- Resource Type
- Authors
- T. Kasvand; M. M. Tremblay; Nabih N. Abdelmalek; J. Olmstead
- Source
- Subject
- Point spread function
Discretization
Computer science
Materials Science (miscellaneous)
Fast Fourier transform
Digital imaging
Image processing
Fredholm integral equation
System of linear equations
Regularization (mathematics)
Industrial and Manufacturing Engineering
symbols.namesake
Fourier transform
Direct methods
symbols
Business and International Management
Invariant (mathematics)
Algorithm
Image restoration
Interpolation
- Language
- English
In this paper we report some experimental results of a direct algorithm for the solution of digital image restoration problems. The solution is obtained directly from the system of linear equations that result from the discretization of the Fredholm integral equation of the first kind. This algorithm uses a simple regularized least-squares technique. Also, the regularization parameter for the optimum solution is calculated by a direct (noniterative) method. A computer simulated example using both space invariant and space variant spatially separable point spread functions is presented. We show that this method compares favorably with other known direct methods.