Title :
Resizing of images in the DCT space by arbitrary factors
Abstract :
In this work we describe algorithms for the resizing by arbitrary factors of images represented in the block DCT space. The algorithms are designed by exploiting spatial relationship of the block DCT coefficients and subband correlation of the DCT coefficients. An interesting application of these methods shown is the conversion in the compressed domain of images (video frames) from one format to another.
Keywords :
correlation theory; data compression; discrete cosine transforms; image representation; video coding; arbitrary factor; block DCT space; image compressed domain; image representation; image resizing; subband correlation; Algorithm design and analysis; Computer science; Discrete cosine transforms; Discrete transforms; Displays; HDTV; Image coding; Image converters; Space technology; Video compression;
Conference_Titel :
Image Processing, 2004. ICIP '04. 2004 International Conference on
Print_ISBN :
0-7803-8554-3
DOI :
10.1109/ICIP.2004.1421686
