Image processing apparatus and image processing method
US-2016248933-A1 · Aug 25, 2016 · US
Image processing apparatus performing halftone process on image data based on a corrected tone value and an error value of target pixels
US9208416B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9208416-B2 |
| Application number | US-201414317243-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2014 |
| Priority date | Jun 28, 2013 |
| Publication date | Dec 8, 2015 |
| Grant date | Dec 8, 2015 |
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Abstract
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The present invention provides an image processing apparatus that includes a processor. The processor is configured to calculate a corrected tone value of a target pixel using a tone value of the target pixel and an error value of a previously processed pixel; determine a dot value of the target pixel by comparing the corrected tone value with a threshold value; calculate an error value of the target pixel using the corrected tone value and a first density value when the dot value indicates to form a dot and the dot to be formed is a first dot formed in isolation; and calculate an error value of the target pixel using the corrected tone value and a second density value when the dot value indicates to form a dot and the dot to be formed is a second dot formed at a particular location in consecutive dots.
First claim
Opening claim text (preview).
What is claimed is: 1. An image processing apparatus comprising: a processor configured to: perform a halftone process on image data to generate processed image data, the image data including a plurality of tone values of a plurality of pixels, the processed image data including a plurality of dot values of the plurality of pixels, each of the plurality of dot values indicating dot formation status; and supply the processed image data to a printing execution unit, wherein,…
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Classifications
- H04N1/4057Primary
Electricity · mapped topic
- G06K15/1881Primary
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9208416B2 cover?
- The present invention provides an image processing apparatus that includes a processor. The processor is configured to calculate a corrected tone value of a target pixel using a tone value of the target pixel and an error value of a previously processed pixel; determine a dot value of the target pixel by comparing the corrected tone value with a threshold value; calculate an error value of the …
- Who is the assignee on this patent?
- Brother Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04N1/4057. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 08 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).