L/M-fold image resizing in block-DCT domain using symmetric convolution

Image resizing is to change an image size by upsampling or downsampling of a digital image. Most still images and video frames on digital media are given in a compressed domain. Image resizing of a compressed image can be performed in the spatial domain via decompression and recompression. In genera...

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Veröffentlicht in:	IEEE transactions on image processing 2003-09, Vol.12 (9), p.1016-1034
Hauptverfasser:	PARK, Hyunwook, PARK, Youngseo, OH, Seung-Kyun
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Blocking Compressed Convolution Digital Digital images Discrete cosine transforms Discrete transforms Exact sciences and technology Frames Frequency Image coding Image processing Image quality Information, signal and communications theory PSNR Recompression Signal processing Telecommunications and information theory Transform coding Video compression
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