Title :
Artifacts in alpha-rooting of images
Author :
McClellan, James H.
Author_Institution :
Massachusetts Institute of Technology, Cambridge, Massachusetts
Abstract :
Image enhancement using Fourier transform coefficient rooting (often referred to as alpha-rooting) suffers from certain objectionable artifacts due to the processing. Such artifacts are caused by well-defined high contrast edges within the image. A modification of the usual alpha-rooting process is proposed whereby these artifacts are suppressed while the desirable enhancement features of the processing are retained.
Keywords :
Discrete Fourier transforms; Filters; Fourier transforms; Frequency conversion; Image sampling; Laboratories; Optimized production technology; Poles and zeros; White noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '80.
DOI :
10.1109/ICASSP.1980.1170896
