Canny edge based image expansion

TitleCanny edge based image expansion
Publication TypeConference Paper
Year of Publication2002
AuthorsShi, H., and R. Ward
Conference NameCircuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
PaginationI-785 - I-788 vol.1
Keywordsbicubic interpolation, bilinear interpolation, Canny edge detector, crisp pictures, edge detection, image expansion, image resolution, interpolation, performance, reduced zigzag pictures

In this paper, a Canny edge-based image expansion method is introduced. Our proposed expansion method outperforms the pixel replication, the bilinear interpolation and the bicubic interpolation methods. It gives crisp and less zigzag pictures. Our method is applied on the image after it has been expanded using bilinear or bicubic interpolation. The edges of such an expanded image are obtained using the Canny edge detector. The values of pixels around the edges are modified to yield a crisper and less zigzagged picture.


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