Title :
A fast scheme for arbitrarily resizing of digital image in the compressed domain
Author :
Wang, Ci ; Yu, Hong-Bin ; Zheng, Meng
Author_Institution :
Inst. of Image Commun. & Inf. Process., Shanghai Jiao Tong Univ., China
fDate :
5/1/2003 12:00:00 AM
Abstract :
Arbitrarily resizing of digital images is needed in many applications, such as transmission of images over communication channels whose bandwidth is varying widely, or display of the pre-encoding program on devices with different resolution. This paper presents a new algorithm, which possesses the capability of arbitrarily image resizing in compressed domain. Experimental results confirm that this scheme can achieve significant computation cost reduction while maintaining better quality. Hence, it can be efficiently used in standalone image resizing and in transcoding applications which require real-time processing.
Keywords :
data compression; discrete cosine transforms; image coding; image resolution; transform coding; DCT; bandwidth; communication channels; computation cost reduction; digital image resizing; discrete cosine transform; image compression; image quality; image transmission; images resolution; pre-encoding program; real-time processing; transcoding applications; Computational efficiency; Costs; Digital images; Discrete cosine transforms; Displays; Hardware; Image coding; Image converters; Image resolution; Video compression;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2003.1209542