Yazar "Çetin, A. E." için listeleme
-
A 2-D orientation-adaptive prediction filter in lifting structures for image coding
Gerek, Ömer Nezih; Çetin, A. E. (2006)Lifting-style implementations of wavelets are widely used in image coders. A two-dimensional (2-D) edge adaptive lifting structure, which is similar to Daubechies 5/3 wavelet, is presented. The 2-D prediction filter predicts ... -
Lossless image compression by LMS adaptive filter banks
Öktem, R.; Çetin, A. E.; Gerek, Ömer Nezih; Öktem, L.; Egiazarian, K. (Elsevier Science Publishers B.V., Amsterdam, 2001)A lossless image compression algorithm based on adaptive subband decomposition is proposed. The subband decomposition is achieved by a two-channel LMS adaptive filter bank. The resulting coefficients are lossy coded first, ... -
Subband domain coding of binary textual images for document archiving
Gerek, Ömer Nezih; Çetin, A. E.; Tevfik, A. H.; Atalay, V. (IEEE, Piscataway, NJ, United States, 1999)In this work, a subband domain textual image compression method is developed. The document image is first decomposed into subimages using binary subband decompositions. Next, the character locations in the subbands and the ...
