Title :
Fast image domain fractal compression by DCT domain block matching
Author :
Wohlberg, B.E. ; De Jager, G.
Author_Institution :
Dept. of Electr. Eng., Cape Town Univ., Rondebosch, South Africa
fDate :
5/25/1995 12:00:00 AM
Abstract :
Fractal image compression entails a computationally costly search for matching image blocks. It is proposed that a block be represented by its DCT coefficients, which may be made invariant to many of the usual block transforms. Owing to the energy packing properties of the DCT, the efficiency of an existing multidimensional nearest neighbour search is improved
Keywords :
data compression; discrete cosine transforms; fractals; image coding; image matching; DCT coefficients; DCT domain block matching; fast image domain fractal compression; fractal image compression; multidimensional nearest neighbour search;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950582
