Image processing device and facsimile machine
US-2015381855-A1 · Dec 31, 2015 · US
Image compression
US9313367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9313367-B2 |
| Application number | US-59803307-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 30, 2007 |
| Priority date | Apr 30, 2007 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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Abstract
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A method for compressing a digital image to be printed, the image consisting of pixels. It is determined, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer. The block is encoded losslessly into a less voluminous format, if such a graphical structure has been found. Otherwise, the block is compressed lossily, if no such graphical structure has been found.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for compressing a digital image to be printed, the image consisting of pixels, the method comprising: determining by a processor of a computing device, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer, by: determining that the block includes just one of black and white pixels, black and transparent pixels, and white…
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- H04N1/41Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9313367B2 cover?
- A method for compressing a digital image to be printed, the image consisting of pixels. It is determined, for blocks of pixels, whether a block contains a graphical structure that is to be maintained without loss because it is of a type that can be accurately perceived by a human observer. The block is encoded losslessly into a less voluminous format, if such a graphical structure has been foun…
- Who is the assignee on this patent?
- Amir Gidi, Shaked Doron, Bergman Ruth, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification H04N1/41. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 12 2016 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).