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Determination of The Satellite Images Orientation Using DCT Coefficients | ||
| Iraqi Journal of Applied Physics | ||
| Article 1, Volume 6, Issue 2, 2010, Pages 31-34 | ||
| Authors | ||
| H.M. Abdul Jabar; M.I. Malik | ||
| Abstract | ||
| In this research a new method that determine the difference in orientation between two images (windows) using the DCT coefficients as descriptors is present, where the four operators that may change the orientation between the two images (windows) is studied by analyzing the new distribution of the DCT coefficients after applying each of them or their combinations. To determine the difference in orientation using the new distribution of the DCT coefficients, a new criterion is proposed which uses the sign changing in certain DCT coefficients as a pattern for that difference, and according to the results it success to determine the difference in the orientation between two images (windows) in very fast and accurate manner that invariant to the size and the details of the image (window). | ||
| Keywords | ||
| Image Processing; Adjusting images orientation; DCT; Descriptors | ||
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