Title :
A new method for directional image interpolation
Author :
Bayrakeri, Sadik D. ; Mersereau, Russell M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A nonlinear method for image interpolation is presented based on spatial domain directional interpolation. Existing directional interpolation algorithms, which only consider edge regions, are extended to the whole image by interpolating in multiple directions. The interpolated values along various directions are combined using directional weights, which depend on the variation in that direction. The interpolation value for each direction is assigned based on the magnitude of its directional derivative
Keywords :
filtering theory; image enhancement; interpolation; nonlinear filters; directional weights; image interpolation; multiple directions; nonlinear method; spatial domain directional interpolation; Contracts; Cutoff frequency; Digital signal processing; Filtering; Frequency response; Interpolation; Laboratories; Nonlinear distortion; Nonlinear filters; Signal processing algorithms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.479972
