Author
Walid Alakk
Bio: Walid Alakk is an academic researcher from Khalifa University. The author has contributed to research in topics: Digital watermarking & Watermark. The author has an hindex of 1, co-authored 3 publications receiving 4 citations.
Topics: Digital watermarking, Watermark, Hash function
Papers
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23 Jul 2014TL;DR: This paper deals with the development and assessment of a watermarking technique which is suitable for scanned PDF documents and the performances of the algorithm were assessed.
Abstract: This paper deals with the development and assessment of a watermarking technique which is suitable for scanned PDF documents. The watermark will serve two purposes. The first one is to protect the copyright ownership. This watermark is a logo which can be extracted even if the document has gone through slight image manipulations. The second one is to authenticate the document. A slight editing in the document will change the second watermark and indicate forgery. The algorithm was tested successfully on a variety of scanned documents and the performances of the algorithm were assessed.
3 citations
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01 Mar 2014TL;DR: This paper deals with the development and assessment of a watermarking technique which is suitable for scanned PDF documents and the performances of the algorithm were assessed.
Abstract: This paper deals with the development and assessment of a watermarking technique which is suitable for scanned PDF documents. The watermark will serve two purposes. The first one is a logo to protect the copyright ownership. This watermark should be invisible and secure and can be extracted even if the document has gone through slight image manipulations. The second watermark will be used to authenticate the document. A slight editing in the document will change the second watermark and indicate forgery. The algorithm was tested successfully on a variety of scanned documents and the performances of the algorithm were assessed.
1 citations
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18 Feb 2015
TL;DR: This paper deals with the development and assessment of a watermarking technique which is suitable for scanned PDF documents and the performances of the algorithm were assessed.
Abstract: This paper deals with the development and assessment of a watermarking technique which is suitable for scanned PDF documents. The watermark will serve two purposes. The first one is a logo to protect the copyright ownership. This watermark should be invisible and secure and can be extracted even if the document has gone through slight image manipulations. The second watermark will be used to authenticate the document. A slight editing in the document will change the second watermark and indicate forgery. The algorithm was tested successfully on a variety of scanned documents and the performances of the algorithm were assessed.
Cited by
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01 Apr 2016TL;DR: In this paper proposed to how to process LSB technique and advantages and that working functionalities and this algorithm is verified on different watermarking images, providing robust and secure results.
Abstract: Image security is a relatively very young and fast growing. Security of data or information is very important now a day in this world. In this paper proposed to advantages and that working functionalities. This algorithm is verified on different watermarking images. And it's provide robust and secure results. To measure the effectiveness of this algorithm is provide embedding and extracting images. PSNR and MSE also calculated the embedding watermarking images. In this DWT watermarking embedding result images provide the good, secure and robust. In this paper proposed to how to process LSB technique.
12 citations
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TL;DR: Experimental results show that the proposed method can withstand various processing attacks; enhance the accuracy of deceptive localization with good visual quality of image recovery and a new blind robust watermarking is proposed using a quantitative property of intermediate frequency coefficient for embedding and adaptive embedded strength selection to balance transparency and robustness.
Abstract: This paper proposes a dual watermarking scheme that can integrate the functions of authentication, copyright protection, and image recovery in the same cover image. The robust watermarking utilizes a single watermark using the discrete cosine transform (DCT) domain for copyright protection, while the fragile scheme utilizes two self-embedding watermarks in a spatial domain for authenticating and restoring digital image content. The mechanism of the two schemes is carried out sequentially and uses a block-based approach. A new blind robust watermarking is proposed using a quantitative property of intermediate frequency coefficient for embedding and adaptive embedding strength selection to balance transparency and robustness. Fragile watermarks are inserted into a robust watermarked image based on the improved replacement approach of the least significant bits. Experimental results show that the proposed method can withstand various processing attacks; enhance the accuracy of deceptive localization with good visual quality of image recovery.
4 citations
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17 May 2015TL;DR: A technique used to insert a watermark into scanned colored PDF files to protect the copyright ownership and authenticate the PDF documents and can survive against different attacks is discussed.
Abstract: This paper discusses a technique used to insert a watermark into scanned colored PDF files. The watermarking aims to protect the copyright ownership and authenticate the PDF documents. A logo has been used as a robust watermark for copyright. The logo will be embedded in the green channel of the file. This watermark can be successfully extracted and it can survive against different attacks. Any manipulations in the PDF file will cause the second fragile watermark to change and indicate forgery. The algorithm was successfully tested on different colored PDF files.
3 citations