KR970068650A - Image image reduction device - Google Patents
Image image reduction device Download PDFInfo
- Publication number
- KR970068650A KR970068650A KR1019960006353A KR19960006353A KR970068650A KR 970068650 A KR970068650 A KR 970068650A KR 1019960006353 A KR1019960006353 A KR 1019960006353A KR 19960006353 A KR19960006353 A KR 19960006353A KR 970068650 A KR970068650 A KR 970068650A
- Authority
- KR
- South Korea
- Prior art keywords
- image
- register
- pixel
- line
- ratio
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
- H04N1/393—Enlarging or reducing
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0094—Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception
Abstract
1.청구범위 기재에 발명이 속한 기술분야.1. Description of the invention.
화상이미지를 축소하는 장치에 관한 것이다.To an apparatus for reducing an image image.
2.발명이 해결하려고 하는 기술적 과제2. Technical Challenges to be Solved by the Invention
원래의 화상이미지를 공간영역에서 서브샘플링하여 축소할 시 외곽선 성분이 상실됨을 방지한다.It is possible to prevent the outline component from being lost when the original image is subsampled and reduced in the spatial domain.
3. 발명의 해결방법 요지3. Solution of the invention
본 발명은 화상이미지를 미리 설정된 화소선택률에 따라 수직방향 및 수평방향으로 축소할 시 각 라인의 선택여부 및 각 화소의 선택여부를 판별한 후 선택되지 않는 것으로 판별된 라인 및 화소들을 버리지 않고 일시적으로 저장하여 이후에 선택되는 것으로 판별된 라인 및 화소가 입력될 시 이 입력된 라인 및 화소가 상기 일시적으로 저장된 라인 및 화소를 논리합연산하여 출력하는 화상이미지 축소장치를 제공한다.When the image is reduced in the vertical direction and the horizontal direction according to the preset pixel selectivity, the present invention determines whether or not each line is selected and whether or not each pixel is selected. Then, the line and pixels determined to be non- And a line and a pixel which are determined to be selected later are input, and the inputted line and pixel are subjected to a logical sum operation of the temporarily stored line and pixel and output.
4.발명의 중요한 용도.4. An important use of the invention.
팩시밀리 또는 디지탈 복사기.Facsimile or digital copier.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 일반적인 서브샘플링방법에 따라 입력화소가 축소될 시 특정의 화소만이 선택됨을 보여주는 도면, 제2도는 일반적인 서브샘플링방법에 따라 축소되는 화상이미지의 일예를 보여주는 도면, 제3도는 본 발명에 따른 화상이미지 축소장치를 가지는 화상형성장치의 구성을 기능적으로 보여주는 도면, 제4도는 본 발명에 따른 화상이미지 축소 장치에 포함되는 수직방향축소부의 구성을 기능적으로 보여주는 도면, 제5도는 본 발명에 따른 화상이미지 축소 장치의 수직방향축소부의 구성을 보다 상세하게 보여주는 도면, 제6도는 본 발명에 따른 수직방향축소부의 동작타이밍도, 제7도는 본 발명에 따른 화상이미지 축소장치의 수평방향축소부의 구성을 보다 상세하게 보여주는 도면, 제8도는 본 발명에 따른 수평방향축소부의 동작타이밍도, 제9도는 본 발명에 따른 화상이미지 축소장치에 의해 화상이미지가 수직 방향 및 수평방향으로 축소된 일예를 보여주는 도면.FIG. 1 is a view showing that a specific pixel is selected when an input pixel is reduced according to a general sub-sampling method, FIG. 2 is a view showing an example of an image image reduced according to a general sub-sampling method, FIG. FIG. 4 is a functional view showing a configuration of a vertically contracted portion included in an image image contracting apparatus according to the present invention; FIG. 5 is a view showing a configuration of an image forming apparatus according to the present invention FIG. 6 is an operation timing diagram of a vertical reduction unit according to the present invention; FIG. 7 is a view showing a configuration of a horizontal reduction unit of the image reduction apparatus according to the present invention; FIG. 8 is an operation timing diagram of a horizontally reducing unit according to the present invention, FIG. 9 Fig. 8 is a view showing an example in which an image image is reduced in the vertical direction and the horizontal direction by the image image reducing apparatus according to the present invention;
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960006353A KR100211838B1 (en) | 1996-03-11 | 1996-03-11 | Apparatus for reducing picture image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960006353A KR100211838B1 (en) | 1996-03-11 | 1996-03-11 | Apparatus for reducing picture image |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970068650A true KR970068650A (en) | 1997-10-13 |
KR100211838B1 KR100211838B1 (en) | 1999-08-02 |
Family
ID=19452789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960006353A KR100211838B1 (en) | 1996-03-11 | 1996-03-11 | Apparatus for reducing picture image |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100211838B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8111950B2 (en) | 2005-10-19 | 2012-02-07 | Samsung Electronics Co., Ltd. | Image processing apparatus and method to generate reduced image |
-
1996
- 1996-03-11 KR KR1019960006353A patent/KR100211838B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8111950B2 (en) | 2005-10-19 | 2012-02-07 | Samsung Electronics Co., Ltd. | Image processing apparatus and method to generate reduced image |
Also Published As
Publication number | Publication date |
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KR100211838B1 (en) | 1999-08-02 |
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