Image sensor apparatus and method for embedding recoverable data on image sensor pixel arrays
US-9521292-B2 · Dec 13, 2016 · US
Image encryption/decryption device, method, and storage medium storing a program
US8935536B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8935536-B2 |
| Application number | US-201113290923-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 7, 2011 |
| Priority date | May 11, 2009 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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- Title
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Abstract
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At the time of marker attachment (at the time of encryption), for example, image conversion in which pixels to be overwritten by a marker are selected and pruned in a distributed manner and the pruning positions are moved to a marker attachment position is performed, and the marker is attached to the marker attachment position obtained as a result. At the time of marker elimination (at the time of decryption), for example, image reverse conversion in which each pixel of the marker is moved to the original position before the marker attachment is performed, each moved pixel of the marker is recovered, and the marker is eliminated.
First claim
Opening claim text (preview).
What is claimed is: 1. An image encryption apparatus comprising: an input unit from which document data is input; and a processor that: selects an encryption target area to be encrypted in an image obtained from the document data; determines pruning positions in the image; shifts pixels at the pruning positions to positions within a particular area which is included in the image and is located at a corner of the encryption target area; encrypts the encryption target area;…
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Physics · mapped topic
Electricity · mapped topic
- H04N1/32203Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8935536B2 cover?
- At the time of marker attachment (at the time of encryption), for example, image conversion in which pixels to be overwritten by a marker are selected and pruned in a distributed manner and the pruning positions are moved to a marker attachment position is performed, and the marker is attached to the marker attachment position obtained as a result. At the time of marker elimination (at the time…
- Who is the assignee on this patent?
- Nakagata Shohei, Iwanaga Hiroshi, Kuraki Kensuke, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H04N1/32203. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).