JPS6190357U - - Google Patents
Info
- Publication number
- JPS6190357U JPS6190357U JP17629684U JP17629684U JPS6190357U JP S6190357 U JPS6190357 U JP S6190357U JP 17629684 U JP17629684 U JP 17629684U JP 17629684 U JP17629684 U JP 17629684U JP S6190357 U JPS6190357 U JP S6190357U
- Authority
- JP
- Japan
- Prior art keywords
- density
- density area
- reading scanning
- area
- copying machine
- 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 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Facsimile Image Signal Circuits (AREA)
Description
第１図は、本考案実施例のデイジタル複写機を
示すブロツク図、第２図１〜９は階調レベルを示
す図、第３図および第４図は、濃度変換曲線の例
を示す図、第５図および第６図は従来のデイジタ
ル複写機を用いて記録を行なつた場合のオペレー
タの指定濃度域よりも原稿濃度域が夫々大である
場合および小である場合の濃度変換曲線を示す図
である。
１…イメージセンサ、２…Ａ／Ｄ変換器、３…
最大最小ホールド回路、４…濃度変換器、５…切
り換えスイツチ、６…記録部、３１…第１の比較
器、３２…最大濃度レジスタ、３３…第２の比較
器、３４…最小濃度レジスタ。
FIG. 1 is a block diagram showing a digital copying machine according to an embodiment of the present invention; FIGS. 2, 1 to 9 are diagrams showing gradation levels; FIGS. 3 and 4 are diagrams showing examples of density conversion curves; Figures 5 and 6 show density conversion curves when the original density range is larger and smaller than the density range specified by the operator, respectively, when recording is performed using a conventional digital copying machine. It is a diagram. 1... Image sensor, 2... A/D converter, 3...
Maximum/minimum hold circuit, 4...density converter, 5...changeover switch, 6...recording section, 31...first comparator, 32...maximum density register, 33...second comparator, 34...minimum density register.
Claims (1)
る濃度域検出手段と、検出された濃度域に基づき
記録濃度の濃度域を対応させるべく、読み取り走
査によつて得られる画信号を濃度変換する濃度変
換器とを具えたことを特徴とするデイジタル複写
機。 Prior to reading scanning, a density area detection means detects the density area of the document, and a density conversion unit converts the density of the image signal obtained by reading scanning in order to match the density area of the recorded density based on the detected density area. A digital copying machine characterized by being equipped with a container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17629684U JPS6190357U (en) | 1984-11-20 | 1984-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17629684U JPS6190357U (en) | 1984-11-20 | 1984-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6190357U true JPS6190357U (en) | 1986-06-12 |
Family
ID=30733897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17629684U Pending JPS6190357U (en) | 1984-11-20 | 1984-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6190357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202183A (en) * | 1987-02-17 | 1988-08-22 | Canon Inc | Picture processor |
-
1984
- 1984-11-20 JP JP17629684U patent/JPS6190357U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202183A (en) * | 1987-02-17 | 1988-08-22 | Canon Inc | Picture processor |
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