Title :
Image watermarking using Hadamard transforms
Author :
Falkowski, B.J. ; Lim, Lip-San
Author_Institution :
Nanyang Technol. Inst., Singapore
fDate :
2/3/2000 12:00:00 AM
Abstract :
A novel method based on the multi-resolution transform and complex Hadamard transform to embed watermarks in grey scale digital images is proposed. The results show that the presented scheme is robust to JPEG compression, image resizing cropping, dithering distortion and successive watermarking effects
Keywords :
Hadamard transforms; data compression; image coding; image resolution; optical noise; robust control; Hadamard transforms; JPEG compression robust schemes; complex Hadamard transform; dithering distortion; grey scale digital images; image resizing cropping robust; image watermarking; multi-resolution transform; watermarking effects;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000257
