JP2007112016A5 - - Google Patents
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- JP2007112016A5 JP2007112016A5 JP2005306157A JP2005306157A JP2007112016A5 JP 2007112016 A5 JP2007112016 A5 JP 2007112016A5 JP 2005306157 A JP2005306157 A JP 2005306157A JP 2005306157 A JP2005306157 A JP 2005306157A JP 2007112016 A5 JP2007112016 A5 JP 2007112016A5
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- JP
- Japan
- Prior art keywords
- information
- reading
- correction
- image forming
- pixel information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000006243 chemical reaction Methods 0.000 claims 4
- 230000000875 corresponding Effects 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
Claims (4)
画像形成ユニットが形成する画像の位置ずれ補正に関する補正情報を記憶する記憶手段と、
前記記憶手段に記憶された前記補正情報に基づいて、前記画像メモリの読み出しアドレスの座標を変換する変換手段と、
前記変換手段において変換されたアドレス情報に基づいて描画するラインの画素情報を読み出す第１読出手段と、
前記描画するラインに隣接するラインの、前記変換されたアドレス情報に対応する画素の画素情報を読み出す第２読出手段と、
前記補正情報と前記第２読出手段において読み出された画素情報とに基づいて、前記第１読出手段において読み出された画素情報の階調補正を行う階調補正手段と、
を有する画像形成装置であって、
前記階調補正手段において階調補正された前記画素情報に基づいて、前記画像形成ユニットにより画像形成することを特徴とする画像形成装置。 An image memory for holding image information composed of a plurality of pixel information;
Storage means for storing correction information relating to correction of positional deviation of an image formed by the image forming unit;
Conversion means for converting the coordinates of the read address of the image memory based on the correction information stored in the storage means;
First reading means for reading pixel information of a line to be drawn based on the address information converted by the conversion means;
Second reading means for reading pixel information of a pixel corresponding to the converted address information of a line adjacent to the line to be drawn;
Gradation correction means for performing gradation correction of the pixel information read by the first reading means based on the correction information and the pixel information read by the second reading means;
An image forming apparatus having
Based on the gradation corrected the pixel information in the gradation correction means, the image forming apparatus characterized by further image formed on the image forming unit.
前記第２読出手段及び前記階調補正手段は、前記範囲情報に示される範囲において動作し、
前記第１読出手段において読み出された画素情報が、階調補正されている場合は階調補正された前記画素情報に基づいて、階調補正されていない場合は前記第１読出手段により読み出された前記画素情報に基づいて、前記画像形成ユニットにより前記画像形成を行うことを特徴とする請求項１又は２に記載の画像形成装置。 The storage means further stores range information indicating a range in which the gradation correction is performed,
The second reading means and the gradation correcting means operate in a range indicated by the range information,
The pixel information read by the first reading means is read by the first reading means when the gradation correction is not performed based on the pixel information subjected to the gradation correction when the gradation correction is performed. has been based on the pixel information, the image forming apparatus according to claim 1 or 2, characterized in that the more the image formed on the image forming unit.
画像形成ユニットが形成する画像の位置ずれ補正に関する補正情報を記憶する記憶手段と、を備えた画像形成装置の制御方法であって、
前記記憶手段に記憶された前記補正情報に基づいて、前記画像メモリの読み出しアドレスの座標を変換する変換工程と、
前記変換工程において変換されたアドレス情報に基づいて描画するラインの画素情報を読み出す第１読出工程と、
前記描画するラインに隣接するラインの、前記変換されたアドレス情報に対応する画素の画素情報を読み出す第２読出工程と、
前記補正情報と前記第２読出工程において読み出された画素情報とに基づいて、前記第１読出工程において読み出された画素情報の階調補正を行う階調補正工程と、
を有し、
前記階調補正工程において階調補正された前記画素情報に基づいて、前記画像形成ユニットにより画像形成することを特徴とする画像形成装置の制御方法。 An image memory for holding image information composed of a plurality of pixel information;
A method of controlling an image forming apparatus including storage means for storing correction information relating to the position of the image shift correction by the image forming unit forms, a,
A conversion step of converting the coordinates of the read address of the image memory based on the correction information stored in the storage means;
A first readout step of reading out pixel information of a line to be drawn based on the address information converted in the conversion step;
A second reading step of reading pixel information of a pixel corresponding to the converted address information of a line adjacent to the line to be drawn;
A gradation correction step for performing gradation correction of the pixel information read in the first reading step based on the correction information and the pixel information read in the second reading step;
Have
The method of the gradation correction on the basis of the gradation corrected the pixel information in the process, the image forming apparatus characterized by further image formed on the image forming unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005306157A JP4667201B2 (en) | 2005-10-20 | 2005-10-20 | Image forming apparatus and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005306157A JP4667201B2 (en) | 2005-10-20 | 2005-10-20 | Image forming apparatus and control method thereof |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007112016A JP2007112016A (en) | 2007-05-10 |
| JP2007112016A5 true JP2007112016A5 (en) | 2008-12-04 |
| JP4667201B2 JP4667201B2 (en) | 2011-04-06 |
Family
ID=38094639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005306157A Expired - Fee Related JP4667201B2 (en) | 2005-10-20 | 2005-10-20 | Image forming apparatus and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4667201B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5188097B2 (en) * | 2007-05-14 | 2013-04-24 | キヤノン株式会社 | Image forming apparatus |
| JP4491027B2 (en) * | 2007-10-30 | 2010-06-30 | 株式会社リコー | Image forming apparatus, image processing method, program, and storage medium |
| US8149475B2 (en) | 2007-10-30 | 2012-04-03 | Ricoh Company, Ltd. | Apparatus, method, and computer program product for processing image |
| JP5661557B2 (en) * | 2010-06-02 | 2015-01-28 | 株式会社東芝 | Image gradation processing apparatus, image forming apparatus, and image gradation processing method |
| KR102532775B1 (en) * | 2018-10-10 | 2023-05-17 | 삼성디스플레이 주식회사 | Display device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0885237A (en) * | 1994-09-16 | 1996-04-02 | Canon Inc | Color image forming device |
| JP3715349B2 (en) * | 1995-07-31 | 2005-11-09 | 株式会社東芝 | Image recording device |
| JP2001142771A (en) * | 1999-11-10 | 2001-05-25 | Ricoh Co Ltd | Data transfer device |
-
2005
- 2005-10-20 JP JP2005306157A patent/JP4667201B2/en not_active Expired - Fee Related
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