Steganographic depth images
US-2016373722-A1 · Dec 22, 2016 · US
Image processing apparatus and image processing method
US9037871B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9037871-B2 |
| Application number | US-201314030629-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2013 |
| Priority date | Mar 18, 2011 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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Abstract
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An image processing apparatus includes: a dividing unit dividing at least one region on a digitalized image into multiple blocks; a scrambling unit producing an encrypted image by rearranging each block; a pixel value judging unit judging, for each block on the encrypted image, whether a difference between a statistically representative value of a pixel value of a first region included in the block and a statistically representative value of a pixel value of a second region is no smaller than a predetermined value, the second region being included in a block adjacent to the block and being adjacent to the first region; and a pixel value converting unit converting the pixel value of the first region in each block having the difference smaller than the predetermined value, while not converting the pixel value of the first region in each block having the difference no smaller than the predetermined value.
First claim
Opening claim text (preview).
What is claimed is: 1. An image processing apparatus comprising: a hardware processor configured to divide at least one region on a digitalized image into a plurality of blocks; produce an encrypted image by rearranging the plurality of blocks according to a predetermined rule; calculate, for each of the plurality of blocks on the encrypted image, a statistically representative value of a pixel value of a pixel in a first region included in the block based on either a luminan…
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Classifications
- H04N1/32229Primary
Electricity · mapped topic
- H04N1/32224Primary
Electricity · mapped topic
- H04L9/28Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9037871B2 cover?
- An image processing apparatus includes: a dividing unit dividing at least one region on a digitalized image into multiple blocks; a scrambling unit producing an encrypted image by rearranging each block; a pixel value judging unit judging, for each block on the encrypted image, whether a difference between a statistically representative value of a pixel value of a first region included in the b…
- Who is the assignee on this patent?
- Fujitsu Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N1/32229. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 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).