Digital Image Watermarking using DCT and Zip Compression Technique

1
Raunak Phade
Raunak Phade
2
Rucha Mahajan
Rucha Mahajan
3
Sampurna Mankar
Sampurna Mankar
4
Pratik Patil
Pratik Patil
1 Scoe,pune university

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With the exponential growth of internet and high speed networks operating throughout the world it is a challenging task to protect copyright of an individual’s creation. In this paper, a spreadspectrum-like discrete cosine transform (DCT) domain watermarking technique for copyright protection of still digital images is analyzed. In our approach, the watermark is embedded in the mid frequency band of the DCT blocks only in the sub band which is carrying low frequency components and the high frequency sub band components remain untouched. With this approach we are developing an application for copyright protection and X-ray medical application too .For further security we are using ZIP Compression Technique. In effect, the main purpose of image compression is to trim down redundancy of the image data in order to be able to store or transmit data in an efficient form.

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No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

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Not applicable for this article.

Raunak Phade. 1970. \u201cDigital Image Watermarking using DCT and Zip Compression Technique\u201d. Global Journal of Computer Science and Technology - F: Graphics & Vision GJCST-F Volume 13 (GJCST Volume 13 Issue F3): .

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Crossref Journal DOI 10.17406/gjcst

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With the exponential growth of internet and high speed networks operating throughout the world it is a challenging task to protect copyright of an individual’s creation. In this paper, a spreadspectrum-like discrete cosine transform (DCT) domain watermarking technique for copyright protection of still digital images is analyzed. In our approach, the watermark is embedded in the mid frequency band of the DCT blocks only in the sub band which is carrying low frequency components and the high frequency sub band components remain untouched. With this approach we are developing an application for copyright protection and X-ray medical application too .For further security we are using ZIP Compression Technique. In effect, the main purpose of image compression is to trim down redundancy of the image data in order to be able to store or transmit data in an efficient form.

With the exponential growth of internet and high speed networks operating throughout the world it is a challenging task to protect copyright of an individual’s creation. In this paper, a spreadspectrum-like discrete cosine transform (DCT) domain watermarking technique for copyright protection of still digital images is analyzed. In our approach, the watermark is embedded in the mid frequency band of the DCT blocks only in the sub band which is carrying low frequency components and the high frequency sub band components remain untouched. With this approach we are developing an application for copyright protection and X-ray medical application too .For further security we are using ZIP Compression Technique. In effect, the main purpose of image compression is to trim down redundancy of the image data in order to be able to store or transmit data in an efficient form.

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Digital Image Watermarking using DCT and Zip Compression Technique

Raunak Phade
Raunak Phade Scoe,pune university
Rucha Mahajan
Rucha Mahajan
Sampurna Mankar
Sampurna Mankar
Pratik Patil
Pratik Patil

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