Arabic Feature-Based Text Watermarking Technique for Sensitive Detecting Tampering Attack
نویسندگان
چکیده
منابع مشابه
Arabic Text Watermarking: A Review
The using of the internet with its technologies and applications have been increased rapidly. So, protecting the text from illegal use is too needed . Text watermarking is used for this purpose. Arabic text has many characteristics such existing of diacritics , kashida (extension character) and points above or under its letters .Each of Arabic letters can take different shapes with different Un...
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Digital watermarking appears today as an e.cient mean of securing multimedia documents. Several application scenarios in the security of digital watermarking have been pointed out, each of them with di/erent requirements. The three main identi1ed scenarios are: copyright protection, i.e. protecting ownership and usage rights; tamper proo1ng, aiming at detecting malicious modi1cations; and authe...
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A novel fragile watermarking technique is proposed for hiding logo information into an image by tuning block pixels based on a bitmap parity checking approach. A secure key and a random number generator are used to hide the logo information in a secret, undetectable, and unambiguous way. The characteristics of the mean gray value and the bitmap in a block are exploited for performing the embedd...
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– In this paper we present a wavelet–based watermarking technique, which is applied on scanned texts. The watermark subjected to a pre–processing is embedded in the detail subband coefficients of the original image. Experimental results show that this method does not cause perceptual differences between the original and the watermarked image. Furthermore the watermark proves to be robust, since...
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This paper presents a framework for detecting tampered information in digital audio-visual content. The proposed framework uses a combination of temporal and spatial watermarks that do not decrease the quality of host videos. A modified version of the Quantization Index Modulation (QIM) algorithm is used to embed watermarks. The fragility of the QIM watermarking algorithm makes it possible to d...
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ژورنال
عنوان ژورنال: Computers, Materials & Continua
سال: 2021
ISSN: 1546-2226
DOI: 10.32604/cmc.2021.017674