Title :
Generalizations of the image resolution conversions in DCT-domain using 8 points inversed DCT
Author :
Kojima, Kazuhiro ; Kiya, Hitoshi
Author_Institution :
Dept. of Electr. Eng., Tokyo Metropolitan Univ., Japan
Abstract :
In the field of image data compression, some resolution conversion methods using DCT have been studied. We discuss one of these methods, which can be executed by 8 points inversed DCT, and extend it. The proposed method using 8 points inversed DCT can perform the image resolution conversion with arbitrary rational values and select the quality of produced images, although the conventional method can not do this
Keywords :
data compression; discrete cosine transforms; image coding; image resolution; DCT-domain; arbitrary rational values; image data compression; image resolution conversions; inversed DCT; produced image quality; Data compression; Decoding; Discrete cosine transforms; Image coding; Image converters; Image resolution; Image storage; Quantization; Transform coding; Video compression;
Conference_Titel :
Circuits and Systems, 1998. IEEE APCCAS 1998. The 1998 IEEE Asia-Pacific Conference on
Conference_Location :
Chiangmai
Print_ISBN :
0-7803-5146-0
DOI :
10.1109/APCCAS.1998.743883
