JPS62112249U - - Google Patents
Info
- Publication number
- JPS62112249U JPS62112249U JP19986985U JP19986985U JPS62112249U JP S62112249 U JPS62112249 U JP S62112249U JP 19986985 U JP19986985 U JP 19986985U JP 19986985 U JP19986985 U JP 19986985U JP S62112249 U JPS62112249 U JP S62112249U
- Authority
- JP
- Japan
- Prior art keywords
- pixels
- image signal
- image
- read
- reference image
- 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
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Editing Of Facsimile Originals (AREA)
- Color Image Communication Systems (AREA)
Description
第１図は本考案の一実施例に係る画像読取装置
の光学系を示す構成図、第２図は圧板下面に描か
れたパターン図、第３図は上記画像読取装置のブ
ロツク構成図、第４図は画信号の説明図である。
１……圧板、２……光源、３……ハーフミラー
、４……鏡、５……レンズ、６，７……色分解フ
イルタ、８，９……ラインセンサ、１０……ペー
パセンサ、１１，１２……黒板、１３，１４……
増幅回路（ＡＭＰ）、１５，１６……アナログデ
ジタル変換回路（Ａ／Ｄ）、１７，１８……２値
化回路、１９，２０……カウンタ、２１……演算
回路、２２……バツフア回路、２３……画素調整
回路、２４……デイレイ回路、２５……コンパレ
ータ、２６……スイツチ回路、２７……クロツク
信号回路。
FIG. 1 is a block diagram showing the optical system of an image reading device according to an embodiment of the present invention, FIG. 2 is a pattern diagram drawn on the lower surface of the pressure plate, and FIG. 3 is a block diagram of the image reading device. FIG. 4 is an explanatory diagram of the image signal. 1... Pressure plate, 2... Light source, 3... Half mirror, 4... Mirror, 5... Lens, 6, 7... Color separation filter, 8, 9... Line sensor, 10... Paper sensor, 11, 12...blackboard, 13,14...
Amplification circuit (AMP), 15, 16...Analog-to-digital conversion circuit (A/D), 17, 18...Binarization circuit, 19, 20...Counter, 21...Arithmetic circuit, 22...Buffer circuit, 23...Pixel adjustment circuit, 24...Delay circuit, 25...Comparator, 26...Switch circuit, 27...Clock signal circuit.
Claims (1)
明し、その原稿からの画像光束を分割して複数の
ラインセンサに画像し、同時に複数の画信号を取
り出す画像読取装置において、上記圧板に描かれ
た一定幅の固定パターンと、上記各ラインセンサ
から取り出された上記各画像信号のうち上記固定
パターンの幅の読み取りに要した各画素数を計数
する手段と、計数された上記各画素数の中から最
小画素数をもつ基準画信号を選択すると共に、そ
の他の上記各画信号と上記基準画信号との上記画
素数の偏差を求める演算手段と、求めた上記画素
数の偏差に基づいて、上記原稿を読み取つた上記
基準画信号以外の各画信号の画素を間引き、上記
基準画信号の画素数に近似させる画素調整回路と
を備えたことを特徴とする画像読取装置。 In an image reading device that illuminates a document whose back side is guided by a pressure plate with a light source, divides the image light beam from the document and images it on multiple line sensors, and extracts multiple image signals at the same time, the image drawn on the pressure plate is A fixed pattern of a constant width, a means for counting the number of pixels required to read the width of the fixed pattern among the image signals taken out from each of the line sensors, and a means for counting the number of pixels required to read the width of the fixed pattern from among the counted number of pixels. a calculation means that selects the reference image signal having the minimum number of pixels and calculates a deviation in the number of pixels between each of the other image signals and the reference image signal; An image reading device comprising: a pixel adjustment circuit that thins out the pixels of each image signal other than the reference image signal that has been read to approximate the number of pixels of the reference image signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19986985U JPS62112249U (en) | 1985-12-28 | 1985-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19986985U JPS62112249U (en) | 1985-12-28 | 1985-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62112249U true JPS62112249U (en) | 1987-07-17 |
Family
ID=31161893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19986985U Pending JPS62112249U (en) | 1985-12-28 | 1985-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62112249U (en) |
-
1985
- 1985-12-28 JP JP19986985U patent/JPS62112249U/ja active Pending
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