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TIP
2002
116views more  TIP 2002»
15 years 4 months ago
Optimization and implementation of the integer wavelet transform for image coding
Abstract--This paper deals with the design and implementation of an image transform coding algorithm based on the integer wavelet transform (IWT). First of all, criteria are propos...
Marco Grangetto, Enrico Magli, Maurizio Martina, G...
ICMCS
2010
IEEE
260views Multimedia» more  ICMCS 2010»
15 years 3 months ago
Compressed-encrypted domain JPEG2000 image watermarking
In digital rights management (DRM) systems, digital media is often distributed by multiple levels of distributors in a compressed and encrypted format. The distributors in the cha...
A. V. Subramanyam, Sabu Emmanuel, Mohan S. Kankanh...
ICASSP
2011
IEEE
14 years 8 months ago
Improved DCT coefficient analysis for forgery localization in JPEG images
In this paper, we propose a statistical test to discriminate between original and forged regions in JPEG images, under the hypothesis that the former are doubly compressed while t...
Tiziano Bianchi, Alessia De Rosa, Alessandro Piva
ICIP
2009
IEEE
16 years 5 months ago
Maximum A Posteriori Super-resolution Of Compressed Video Using A New Multichannel Image Prior
Super-resolution (SR) algorithms for compressed video aim at recovering high-frequency information and estimating a high-resolution (HR) image or a set of HR images from a sequenc...
ICIP
2000
IEEE
16 years 6 months ago
Video Transcoding by Reducing Spatial Resolution
In network delivery of digital video, if the bandwidth required for a video is not available, the video has to be recoded at a reduced bit rate. It is highly desirable that the tr...
Peng Yin, Min Wu, Bede Liu