Title :
Edge-preserving image resizing using modified B-splines
Author :
Gotchev, Atanas ; Egiazarian, Karen ; Vesma, Jussi ; Saramäki, Tapio
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
Abstract :
An edge-preserving method for image resizing (decimation and interpolation) is proposed. The decimation is considered as an orthogonal projection with respect to the chosen interpolation basis. The latter one is formed in a spline-like manner as a linear combination of B-splines of different degrees. This combination is optimized in such a way that the small image details are preserved. Considering the strongest edges as step edges, a segmentation procedure preceding the decimation is proposed. It leads to resized images with clearly outlined borders
Keywords :
image segmentation; interpolation; splines (mathematics); edge-preserving image resizing; image decimation; image interpolation; image segmentation; least-squares decimation; modified B-splines; orthogonal projection; step edges; Convolution; Image processing; Image sampling; Image segmentation; Interpolation; Modems; Signal processing; Signal synthesis; Spline; Wavelet domain;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.941307
