Title :
DCT-based data hiding for securing ROI of color images
Author :
Lo-Varco, G. ; Puech, W.
Author_Institution :
CEM2 Lab., Montpellier II Univ., France
Abstract :
In this paper a region-based color image watermarking algorithm is presented. The objective of the method is to embed a particular message in each region of interest (ROI) in the image. The embedding message has to be detected after image manipulations such as cropping, rotations and color JPEG compression. By using shape information, the embedding message is synchronized with each ROI on each color component Y, Cr and Cb. To embed information non-rounded DCT coefficients are watermarked. Experimental results demonstrate the performance of the algorithm against spatial and frequential attacks.
Keywords :
discrete cosine transforms; image coding; image colour analysis; watermarking; DCT; color JPEG compression; color images; data hiding; embedding message detection; image cropping; image manipulations; image rotations; region of interest security; region-based color image watermarking algorithm; Color; Data encapsulation; Data mining; Image coding; Image segmentation; Laboratories; Principal component analysis; Shape; Transform coding; Watermarking;
Conference_Titel :
Image Processing, 2005. ICIP 2005. IEEE International Conference on
Print_ISBN :
0-7803-9134-9
DOI :
10.1109/ICIP.2005.1530248
