JP2001320555A5 - - Google Patents
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- JP2001320555A5 JP2001320555A5 JP2000139464A JP2000139464A JP2001320555A5 JP 2001320555 A5 JP2001320555 A5 JP 2001320555A5 JP 2000139464 A JP2000139464 A JP 2000139464A JP 2000139464 A JP2000139464 A JP 2000139464A JP 2001320555 A5 JP2001320555 A5 JP 2001320555A5
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- JP
- Japan
- Prior art keywords
- document
- disturbance light
- brightness
- original
- document detection
- 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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Description
【００１２】
従来の画像読取装置では、上述のように、原稿検知手段において反射光の強度を予め定めたしきい値と比較して原稿を検知するようにしていたが、画像読取装置の設置環境によっては、これが正しく検知できず、たとえば原稿がセットされていないと判断されて画像読取動作が行えない状態が発生してしまうという問題点があった。0012
In the conventional image reading device, as described above, the document detecting means detects the document by comparing the intensity of the reflected light with a predetermined threshold value, but depending on the installation environment of the image reading device, the document is detected. There is a problem that this cannot be detected correctly, and for example, it is determined that the original is not set and the image reading operation cannot be performed.
【００１７】
本発明は上記の点にかんがみてなされたもので、原稿の検知を正しく行うことによって画像の読み取りを正確に行うことができる画像読取装置を提供することを目的とする。[0017]
The present invention has been made in view of the above problems, and an object thereof is to provide an image reading apparatus capable of accurately reading the image by performing the detection of the document correctly.
【００７７】
【発明の効果】
以上説明したように、本発明によれば、原稿の検知を正しく行うことによって画像の読み取りを正確に行うことができる画像読取装置を提供することができる。[0077]
【Effect of the invention】
As described above, according to the present invention, it is possible to provide an image reading device capable of accurately reading an image by correctly detecting a document.
Claims (3)
前記原稿台に置かれた原稿を走査し、画像データを取り込む原稿読取手段と、
前記原稿台に何も置かずに前記原稿読取手段を動作させることによって取り込まれた外乱光データを解析し、外乱光の明るさを決定する外乱光明るさ決定手段と、
前記外乱光明るさ決定手段によって決定された外乱光の明るさに基づいて、原稿検知用しきい値を決定する原稿検知用しきい値決定手段と、
前記原稿台を走査し、原稿検知用しきい値決定手段によって決定された原稿検知用しきい値に基づいて、前記原稿台に置かれた原稿の検知を行う原稿検知手段と
を備えたことを特徴とする画像読取装置。A copyboard for placing a document on which the image to be read is recorded;
An original reading unit for scanning an original placed on the original table and taking in image data;
Disturbance light brightness determination means for analyzing disturbance light data taken in by operating the manuscript reading means without placing anything on the manuscript table and determining the brightness of the disturbance light;
A document detection threshold value determination unit that determines a document detection threshold value based on the brightness of disturbance light determined by the disturbance light brightness determination unit;
Document detection means for scanning the document table and for detecting a document placed on the document table based on the document detection threshold value determined by the document detection threshold value determination means; Image reader characterized by
前記原稿検知可能判定手段が原稿検知不可能と判定した場合には、その旨を表示する表示手段と
をさらに備えたことを特徴とする請求項１に記載の画像読取装置。A document detectability determining unit that compares the brightness of the disturbance light determined by the disturbance light brightness determination unit with a predetermined brightness to determine whether the document detection is possible.
2. The image reading apparatus according to claim 1, further comprising: display means for displaying the fact that the document can not be detected.
前記原稿検知可能判定手段が原稿検知不可能と判定した場合には、原稿検知の機能を使用する原稿読取モードを禁止する禁止手段と
をさらに備えたことを特徴とする請求項１に記載の画像読取装置。A document detectability determining unit that compares the brightness of the disturbance light determined by the disturbance light brightness determination unit with a predetermined brightness to determine whether the document detection is possible.
The image according to claim 1, further comprising: prohibiting means for prohibiting an original reading mode using the function of detecting an original when the original detectability determining means determines that the original can not be detected. Reader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000139464A JP4018864B2 (en) | 2000-05-12 | 2000-05-12 | Image reading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000139464A JP4018864B2 (en) | 2000-05-12 | 2000-05-12 | Image reading device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004045869A Division JP2004248303A (en) | 2004-02-23 | 2004-02-23 | Image reading apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001320555A JP2001320555A (en) | 2001-11-16 |
| JP2001320555A5 true JP2001320555A5 (en) | 2005-01-20 |
| JP4018864B2 JP4018864B2 (en) | 2007-12-05 |
Family
ID=18646900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000139464A Expired - Fee Related JP4018864B2 (en) | 2000-05-12 | 2000-05-12 | Image reading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4018864B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017200038A (en) * | 2016-04-27 | 2017-11-02 | コニカミノルタ株式会社 | Image reading apparatus and control method of the same |
| JP6943087B2 (en) * | 2017-09-01 | 2021-09-29 | コニカミノルタ株式会社 | Authentication system, authentication controller, authentication controller control method, and program |
-
2000
- 2000-05-12 JP JP2000139464A patent/JP4018864B2/en not_active Expired - Fee Related
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