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» A DCT Domain Visible Watermarking Technique for Images
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ICPR
2010
IEEE
13 years 8 months ago
Lossless ROI Medical Image Watermarking Technique with Enhanced Security and High Payload Embedding
In this article, a new fragile, blind, high payload capacity, ROI (Region of Interest) preserving Medical image watermarking (MIW) technique in the spatial domain for grayscale med...
Malay Kumar Kundu, Sudeb Das
VCIP
2000
13 years 11 months ago
Optimal down-conversion in compressed DCT domain with minimal operations
A new down-conversion scheme in the DCT domain is presented, which can be used in decoders of DCT-compressed images and videos. The down-conversion in the transform domain general...
Myoung-Cheol Shin, In-Cheol Park
ICIP
2001
IEEE
14 years 12 months ago
DCT quantization noise in compressed images
In lossy image compression schemes utilizing the discrete cosine transform (DCT), quantization of the DCT coefficients introduces error in the image representation and a loss of s...
Mark A. Robertson, Robert L. Stevenson
MMSEC
2005
ACM
210views Multimedia» more  MMSEC 2005»
14 years 3 months ago
Composite signature based watermarking for fingerprint authentication
Digital watermarking is a technology to hide information in digital media. We extend the digital watermarking technique Phasemark™, originally developed solely for image authent...
Farid Ahmed, Ira S. Moskowitz
ISW
2001
Springer
14 years 2 months ago
Oblivious Image Watermarking Robust against Scaling and Geometric Distortions
Abstract. Watermarking stays the main technical safeguard of electronic copyright. This paper presents the first public-domain oblivious watermarking scheme for images which survi...
Francesc Sebé, Josep Domingo-Ferrer