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Open Access Hybrid Image Encryption

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Partial image encryption has several advantages compared to standard encryption in the multimedia domain. It preserves structural information of the media files and allows viewing the files in their encrypted state. The drawbacks of partial encryption are the lower security and the file size increase. We propose hybrid encryption, where the most significant frequency bands are strongly encrypted and the other bands are encrypted in a codingfriendly manner to achieve the best compromise between security and file size. We apply this concept to a local encryption approach where facial parts of photographs are recognized and encrypted to achieve a privacy-preserving state of a photo which can efficiently can be decrypted if required.
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Keywords: Image encryption; local encryption; partial encryption

Document Type: Research Article

Publication date: January 28, 2018

More about this publication?
  • For more than 30 years, the Electronic Imaging Symposium has been serving those in the broad community - from academia and industry - who work on imaging science and digital technologies. The breadth of the Symposium covers the entire imaging science ecosystem, from capture (sensors, camera) through image processing (image quality, color and appearance) to how we and our surrogate machines see and interpret images. Applications covered include augmented reality, autonomous vehicles, machine vision, data analysis, digital and mobile photography, security, virtual reality, and human vision. IS&T began sole sponsorship of the meeting in 2016. All papers presented at EIs 20+ conferences are open access.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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