Digital Restoration of Blurred Photographs,
Abstract
The amount of information that a human observer can obtain from a blurred photograph can be increased by post-processing the image in a digital computer. A complete procedure for restoring (by Wiener filtering) high-resolution photographs degraded by several common types of blurs is described. The practical aspects of obtaining an acceptable restoration are considered in detail. These include the limitations of the Wiener filter, the characteristics of photographic film and methods to identify the blur by analysing the blurred image using only limited a priori knowledge. High-resolution photographs degraded by motion and focus blurs introduced directly in a camera are restored to illustrate the techniques. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1978
- Accession Number
- ADA053107
Entities
People
- J. F. Boulter