Some Basic Image Degradation and Enhancement Techniques.
Abstract
The report documents a collection of basic techniques for degrading or enhancing images. Included are blurring by averaging or iterated averaging; deblurring by contrast stretching, histogram flattening, and combination of the Laplacian with the original image; addition of noise; removal of periodic noise by selective spatial frequency filtering, and of 'salt and pepper' noise by selective local averaging; and object extraction by 'semi-thresholding.' Examples of the results obtained using these programs are given. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1973
- Accession Number
- AD0778418
Entities
People
- Azriel Rosenfeld
- E. J. Carton
- J. A. Verson
- J. M. Mohr
- J. S. Weszka
Organizations
- University of Maryland