A Color Image Digital Watermarking Scheme Based on SOFM
J. Anitha, S. Immanuel Alex Pandian

TL;DR
This paper introduces a novel color image digital watermarking scheme using SOFM vector quantizer, embedding watermarks into compressed images for efficient, robust copyright protection without needing the original image.
Contribution
It presents a new watermarking method based on SOFM vector quantization that embeds watermarks into both compressed and reconstructed images, enhancing robustness and efficiency.
Findings
Robust against various image processing operations
Maintains compression performance and speed
Allows watermark extraction without original image
Abstract
Digital watermarking technique has been presented and widely researched to solve some important issues in the digital world, such as copyright protection, copy protection and content authentication. Several robust watermarking schemes based on vector quantization (VQ) have been presented. In this paper, we present a new digital image watermarking method based on SOFM vector quantizer for color images. This method utilizes the codebook partition technique in which the watermark bit is embedded into the selected VQ encoded block. The main feature of this scheme is that the watermark exists both in VQ compressed image and in the reconstructed image. The watermark extraction can be performed without the original image. The watermark is hidden inside the compressed image, so much transmission time and storage space can be saved when the compressed data are transmitted over the Internet.…
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Taxonomy
TopicsAdvanced Steganography and Watermarking Techniques · Advanced Data Compression Techniques · Chaos-based Image/Signal Encryption
