JPH0244467U - - Google Patents
Info
- Publication number
- JPH0244467U JPH0244467U JP12301188U JP12301188U JPH0244467U JP H0244467 U JPH0244467 U JP H0244467U JP 12301188 U JP12301188 U JP 12301188U JP 12301188 U JP12301188 U JP 12301188U JP H0244467 U JPH0244467 U JP H0244467U
- Authority
- JP
- Japan
- Prior art keywords
- gradation characteristic
- characteristic conversion
- color correction
- document
- conversion data
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
- Color Image Communication Systems (AREA)
Description
第１図は本考案に係る原稿読取り装置の実施例
を示すブロツク図、第２図はフイルムホルダと装
着部を示す正面図、第３図は第１図に示した原稿
読取り装置におけるデジタルクランプ回路の動作
状態を示す波形図、第４図は透過率特性データと
階調特性変換データを示すグラフ、第５図は第１
図に示した原稿読取り装置の動作状態を示すフロ
ーチヤート、第６図は原稿判別手段を構成するフ
イルムホルダと装着部の他の例を示す正面図であ
る。
１……カラーフイルム（原稿）、２……フイル
ムホルダ、２ａ，２ｂ……切欠部、３……装着部
、４ａ，４ｂ……原稿判別手段（スライドスイツ
チ）、３６ａ，３６ｂ……フイルム判別手段（検
出ピン）、９……撮像素子（ＣＣＤ）、１６……
制御回路、１７……メモリ手段（デイスクドライ
ブ装置）、１８……映像信号処理回路、２０……
階調特性変換回路、２１……色補正マトリクス回
路。
FIG. 1 is a block diagram showing an embodiment of the document reading device according to the present invention, FIG. 2 is a front view showing a film holder and mounting section, and FIG. 3 is a digital clamp circuit in the document reading device shown in FIG. 1. Figure 4 is a waveform diagram showing the operating status of , Figure 4 is a graph showing transmittance characteristic data and gradation characteristic conversion data, Figure 5 is
FIG. 6 is a flowchart showing the operating state of the document reading device shown in the figure, and FIG. 6 is a front view showing another example of the film holder and the mounting section constituting the document discriminating means. 1... Color film (original), 2... Film holder, 2a, 2b... Notch, 3... Mounting part, 4a, 4b... Original discriminating means (slide switch), 36a, 36b... Film discriminating means (detection pin), 9...imaging device (CCD), 16...
Control circuit, 17... Memory means (disk drive device), 18... Video signal processing circuit, 20...
gradation characteristic conversion circuit, 21... color correction matrix circuit;
Claims (1)
るプリスキヤンとによつて得られる原稿からの透
過光あるいは反射光を光電変換して所定の各色に
対応した映像信号を各々出力する撮像素子と、 上記原稿の種類に応じたコード信号を出力する
原稿判別手段と、 上記原稿の種類に応じた複数種類の階調特性変
換データ及び色補正データを記憶するメモリ手段
と、 上記本スキヤンによつて得られる各映像信号を
所定の階調特性変換データと色補正データとに基
づいて各々変換して出力する映像信号処理回路と
、 上記コード信号に応じた階調特性変換データに
基づいた階調特性変換データを上記メモリ手段か
ら抽出し上記プリスキヤンによつて得られる上記
各映像信号のレベル分布に基づいて選択された階
調特性変換データにおける使用範囲を設定して上
記映像信号処理回路における階調特性変換データ
を書き変えるとともに、上記コード信号に応じた
色補正データを上記メモリ手段から抽出して上記
映像信号処理回路における色補正データを書き変
える制御回路とを備え、 上記本スキヤンによつて得られる上記各映像信
号を上記映像信号処理回路に上記プリスキヤンに
よつて新たに書き変えられた階調特性変換データ
に基づいて変換するとともに、色補正データに基
づいて補正してなることを特徴とする原稿読取り
装置。[Claims for Utility Model Registration] The transmitted light or reflected light from the document obtained by the main scan and the pre-scan performed before the main scan is photoelectrically converted to generate video signals corresponding to each predetermined color. an image sensor for outputting an image sensor; a document determining means for outputting a code signal according to the type of the document; a memory means for storing a plurality of types of gradation characteristic conversion data and color correction data corresponding to the type of the document; a video signal processing circuit that converts and outputs each video signal obtained by the main scan based on predetermined gradation characteristic conversion data and color correction data; The video signal processing is performed by extracting the based gradation characteristic conversion data from the memory means and setting the usage range of the selected gradation characteristic conversion data based on the level distribution of each of the video signals obtained by the pre-scanning. a control circuit that rewrites gradation characteristic conversion data in the circuit, extracts color correction data corresponding to the code signal from the memory means, and rewrites the color correction data in the video signal processing circuit; The video signals obtained by the above are converted by the video signal processing circuit based on the gradation characteristic conversion data newly rewritten by the pre-scan, and are corrected based on the color correction data. A document reading device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12301188U JPH0244467U (en) | 1988-09-20 | 1988-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12301188U JPH0244467U (en) | 1988-09-20 | 1988-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0244467U true JPH0244467U (en) | 1990-03-27 |
Family
ID=31371475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12301188U Pending JPH0244467U (en) | 1988-09-20 | 1988-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0396174A (en) * | 1989-09-08 | 1991-04-22 | Fuji Photo Film Co Ltd | Color scanner |
-
1988
- 1988-09-20 JP JP12301188U patent/JPH0244467U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0396174A (en) * | 1989-09-08 | 1991-04-22 | Fuji Photo Film Co Ltd | Color scanner |
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