Share Email Print

Journal of Electronic Imaging

Two-dimensional discrete sine transform scheme for image mirroring and rotation
Author(s): Do Nyeon Kim; K. R. Rao
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Mirroring an image (horizontally or vertically) and rotation by 90, 180, and 270 deg in the spatial domain is implemented by changing the signs of the 2-D discrete cosine transform (DCT) coefficients of the original image appropriately. This approach leads to an efficient compressed domain-based image mirroring and rotation. This method is now extended to a 2-D discrete sine transform (DST), i.e., a 2-D DST possesses properties similar to 2-D DCT and it can be applied to image mirroring (horizontally or vertically) and also rotation by angles of 90, 180, and 270 deg. We illustrate these methods in a video-editing application.

Paper Details

Date Published: 1 January 2008
PDF: 4 pages
J. Electron. Imaging. 17(1) 013011 doi: 10.1117/1.2885257
Published in: Journal of Electronic Imaging Volume 17, Issue 1
Show Author Affiliations
Do Nyeon Kim, The Univ. of Texas at Arlington (United States)
K. R. Rao, The Univ. of Texas at Arlington (United States)

© SPIE. Terms of Use
Back to Top