Chart creation method, control apparatus and non-transitory computer-readable storage medium storing chart creation control program
US-2016261773-A1 · Sep 8, 2016 · US
Image processing apparatus
US8970911B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970911-B2 |
| Application number | US-201314094138-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2013 |
| Priority date | Dec 7, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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By using different conversion patterns from input gradation values to output gradation values for each coordinate inside a continuous region with a predetermined area, an image processing circuit is for halftoning which approximately expresses a number of gradations which is higher than the number of gradations which are output for each dot is optimized for each type of apparatus while being shared between types of devices where the number of gradations in the output gradation values is different. There is an image processing apparatus where the number of indexes is relatively high in a case which corresponds to a low gradation level which is a halftone level where the number of gradations in the corresponding output gradation values is relatively low.
First claim
Opening claim text (preview).
What is claimed is: 1. An image processing apparatus, which converts input gradation values of printing target image data to output gradation values with a number of gradations which is able to form an image, comprising: a first storage unit which holds indexes, which indicate gradation conversion patterns which correspond to each of the coordinates inside a screen region which configures a continuous region with a predetermined area, for each halftone level which corresponds to t…
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- What does patent US8970911B2 cover?
- By using different conversion patterns from input gradation values to output gradation values for each coordinate inside a continuous region with a predetermined area, an image processing circuit is for halftoning which approximately expresses a number of gradations which is higher than the number of gradations which are output for each dot is optimized for each type of apparatus while being sh…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification H04N1/50. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).