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Título : Watermarking Based on Krawtchouk Moments for Handwritten Document Images
Autor : Avila Domenech, Ernesto
Soria Lorente, Anier
Palabras clave : DIGITAL WATERMARKING;GENETIC ALGORITHM HADWRITTEN DOCUMENTS;KRAWTCHOUK MOMENTS;QR CODE
Fecha de publicación : 2018
Editorial : Springer
Citación : Avila-Domenech E., Soria-Lorente A. (2018) Watermarking Based on Krawtchouk Moments for Handwritten Document Images. In: Hernández Heredia Y., Milián Núñez V., Ruiz Shulcloper J. (eds) Progress in Artificial Intelligence and Pattern Recognition. IWAIPR 2018. Lecture Notes in Computer Science, vol 11047. Springer, Cham. https://doi.org/10.1007/978-3-030-01132-1_14
Resumen : In this paper, a digital watermarking technique for copyright protection based on the concept of embed a digital watermark and modifying coefficients in Krawtchouk moments domain is presented. This technique is specifically for handwritten document images using a QR code as a digital watermark. It consists in dividing the image into 8 × 8 pixels blocks, where the number of selected blocks is equal to the number of watermark bits. The Krawtchouk moments of each selected block are determined. After that, one coefficient is modified using Dither modulation. In addition, the results obtained in terms of perceptual quality (PSNR) and robustness (BER) show that the proposed technique is robust to JPEG compression attacks keeping imperceptibility.
URI : https://repositorio.uci.cu/jspui/handle/123456789/9452
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