JPS63187477U - - Google Patents
Info
- Publication number
- JPS63187477U JPS63187477U JP7863187U JP7863187U JPS63187477U JP S63187477 U JPS63187477 U JP S63187477U JP 7863187 U JP7863187 U JP 7863187U JP 7863187 U JP7863187 U JP 7863187U JP S63187477 U JPS63187477 U JP S63187477U
- Authority
- JP
- Japan
- Prior art keywords
- image signal
- gradation
- reduction device
- noise reduction
- lowering
- 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 1
- 238000010586 diagram Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図はこの考案の一実施例を示す概略ブロツ
ク図である。第２図は第１図に示す実施例におけ
るノイズ軽減動作を説明するための図である。
図において、１はＡ／Ｄ変換器、ＳＷ１および
ＳＷ２はスイツチ、２は下位ビツト削除・桁上げ
回路、３はＤ／Ａ変換器を示す。
FIG. 1 is a schematic block diagram showing one embodiment of this invention. FIG. 2 is a diagram for explaining the noise reduction operation in the embodiment shown in FIG. 1. In the figure, 1 is an A/D converter, SW1 and SW2 are switches, 2 is a lower bit deletion/carry circuit, and 3 is a D/A converter.
Claims (1)
イズ軽減装置であつて、 前記画像信号をデイジタル画像信号に変換する
ためのＡ／Ｄ変換手段、および 前記デイジタル画像信号における所定桁数分の
下位ビツトを削除もしくは桁上げすることにより
、当該デイジタル画像信号の階調を下げる階調低
下手段を備える、ノイズ軽減装置。[Claims for Utility Model Registration] A noise reduction device for reducing noise contained in an image signal, comprising: A/D conversion means for converting the image signal into a digital image signal; A noise reduction device comprising a gradation lowering means for lowering the gradation of a digital image signal by deleting or carrying a predetermined number of lower order bits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7863187U JPS63187477U (en) | 1987-05-25 | 1987-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7863187U JPS63187477U (en) | 1987-05-25 | 1987-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63187477U true JPS63187477U (en) | 1988-11-30 |
Family
ID=30927751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7863187U Pending JPS63187477U (en) | 1987-05-25 | 1987-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63187477U (en) |
-
1987
- 1987-05-25 JP JP7863187U patent/JPS63187477U/ja active Pending
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