A Fragile Digital Watermarking Method Based on TS Transform (An Integer Transform)

This paper provides a detailed discussion of a fragile digital watermarking method implemented using TS transform (an integer-based transformation). First, we introduce the advantages of integer watermarking in digital watermarking systems and its applications in information hiding domains. The implementation typically involves integer arithmetic operations that prevent rounding errors, making it suitable for lossless environments. Then, we thoroughly explain the principles and algorithms behind TS transform, highlighting its role in digital watermarking through matrix operations that maintain data integrity. Next, we propose a fragile digital watermarking method based on TS transform and detail its implementation steps and algorithmic workflow, including key functions for embedding and extraction processes. The algorithm involves dividing the host image into blocks, applying TS transformation, and modifying specific coefficients for watermark insertion. Finally, through experimental validation and result analysis, we verify the method's effectiveness and robustness against various attacks. Overall, this research provides new perspectives and methodologies for digital watermarking technology development, offering both theoretical significance and practical applications in content authentication systems.