CN1237476C - Pattern detecting method, image processing control method, image processing device and recording medium - Google Patents
Pattern detecting method, image processing control method, image processing device and recording medium Download PDFInfo
- Publication number
- CN1237476C CN1237476C CNB001023438A CN00102343A CN1237476C CN 1237476 C CN1237476 C CN 1237476C CN B001023438 A CNB001023438 A CN B001023438A CN 00102343 A CN00102343 A CN 00102343A CN 1237476 C CN1237476 C CN 1237476C
- Authority
- CN
- China
- Prior art keywords
- special pattern
- image
- image processing
- printed
- processing apparatus
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0007—Image acquisition
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
- G06T2207/10008—Still image; Photographic image from scanner, fax or copier
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Multimedia (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Analysis (AREA)
Abstract
To prohibit an unauthorized copying in a copying machine, etc., without impairing the readability of an original document also while preventing document contents from being easily separated from a pattern by printing a special pattern on the rear face of the original by a method capable of printing the original document by normal monochrome printer or color printer. A specific pattern detecting part 102 detects a specific pattern candidate printed on the rear face of a document from an acquired image, and decides whether the document is one on which the specific pattern was printed on the rear face of the document by checking arrangement relation about the pattern candidate, and an image outputting part 103 inhibits operations such as copying, when the specific pattern is printed.
Description
Technical field
The present invention relates in order to prevent that secret document is by improper image processing control, image processing apparatus and the memory image processing controls program recording medium of duplicating, detecting the graph testing method of special pattern, control the image processor energy according to detection special pattern result.
Background technology
In the past, about prevent improper method of duplicating proposed as use for example have metallic luster must proper duplicate special with paper (spy opens flat 6-155975 communique), stickup is used to prevent the improper mark that duplicates (spy opens flat 6-259013 communique), distinguishes printing word and background (spy opens flat 7-89215 communique), sub-image printing processes such as (spy open flat 6-68051 communique) occurs after duplicating with roughly the same reproduction concentration double-colored when black and white is duplicated on printed article.
But, locate to write secret document occasion in office etc. usually, use black-and-white printer mostly, it is special with paper or use special printing process etc. probably to be difficult to correspondence on the equipment function to use, and the cost costliness.In addition, the content that relates in the secret document belongs to secret, though local paste prevent improper duplicate prevent mark, make that this place can not obtain picture rich in detail when duplicating,, but the place is a read state beyond the mark, prevents that improper print effect is poor.
In addition, also disclosed by the device (spy open clear 60-229572 communique) of identification as the surfacial pattern control image processing process (duplicating) of object.But, in this device, when the pattern integral body as object surface effective by the specific occasion, for general secret document, can not be specific in advance the whole figure in document surface, even locate to print special pattern in blank parts etc., so that do not damage the reading property of document, because be easy to hidden this part when reading in image, so, improper duplicating can not be prevented.
Summary of the invention
The present invention puts forward in view of the existing problem of above-mentioned prior art, the objective of the invention is to, graph testing method, image processing control, image processing apparatus and recording medium are provided, be common black-and-white printer or colour print function method of printing, back face printing special graph by at document does not damage the reading to former document, and, separating of document content and figure can be prevented, improper the duplicating on duplicating machine etc. can be forbidden.
To achieve these goals, the present invention proposes a kind of graph testing method, it is characterized in that, by extracting the pixel in the predetermined concentration rate range the image that gets from the scanning document, detects the special pattern that is printed on the scanning plane reverse side.
To achieve these goals, the present invention proposes another kind of graph testing method, it is characterized in that, changes by detectable concentration the image that gets from the scanning document, detects the special pattern that is printed on the scanning plane reverse side.
To achieve these goals, the present invention proposes another graph testing method, it is characterized in that, by extracting the pixel in the predetermined color scope the image that gets from the scanning document, detects the special pattern that is printed on the scanning plane reverse side.
To achieve these goals, the present invention proposes another graph testing method, from the scanning document and image detect be printed on the scanning plane reverse side be the special pattern of lattice-like with predetermined space, it is characterized in that, with detected candidate's figure is the center, and investigation is whether to have other candidate's figure on the circumference of radius with above-mentioned predetermined space, if give and mark when existing, mark to detected whole candidate's figures adds up, and detects special pattern according to this aggregate-value.
According to graph testing method of the present invention, its feature also is, above-mentioned be to detect on the circumference of radius when having a plurality of other candidate's figure with the predetermined space, when angulation is special angle between the above-mentioned candidate's figure in round center relatively, give and high score.
According to graph testing method of the present invention, its feature also is, on the connecting line of the candidate's figure on the detected circumference and circle central point, has other candidate's figure occasion on the distance of the integral multiple of above-mentioned radius, gives and high score.
According to graph testing method of the present invention, it is characterized in that, be printed on special pattern on the one side at least by scanning document two-sided detection.
To achieve these goals, the present invention proposes a kind of image processing control, reads document, the action of control document Flame Image Process, it is characterized in that, when being printed on the special pattern of document reverse side by above-mentioned graph testing method detection, the action of control document Flame Image Process.
To achieve these goals, the present invention proposes a kind of image processing apparatus, comprises image input part and control part, it is characterized in that, also comprise the special pattern test section,, detect the special pattern that is printed on above-mentioned image reverse side for image from image input part gained.
According to image processing apparatus of the present invention, its feature is that also the special pattern test section is provided with pixel decimation portion, extracts the pixel in the predetermined concentration rate range from the image of image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
According to image processing apparatus of the present invention, its feature is that also the special pattern test section is provided with pixel decimation portion, changes by detectable concentration from the image of image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
According to image processing apparatus of the present invention, its feature is that also the special pattern test section is provided with pixel decimation portion, extracts the pixel in the predetermined color scope from the image of image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
According to image processing apparatus of the present invention, its feature also is, the special pattern test section is provided with the special pattern judging part, from the image of image input part gained, detect be printed on above-mentioned image reverse side be the special pattern of lattice-like with predetermined space, with detected candidate's figure is the center, investigation is whether to have other candidate's figure on the circumference of radius with above-mentioned predetermined space, if give and mark when existing, mark to detected whole candidate's figures adds up, and detects special pattern according to this aggregate-value.
According to image processing apparatus of the present invention, its feature also is, the special pattern test section above-mentioned be to detect on the circumference of radius when having a plurality of other candidate's figure with the predetermined space, when angulation is special angle between the above-mentioned candidate's figure in round center relatively, give and high score.
According to image processing apparatus of the present invention, its feature also is, there is other candidate's figure occasion in the special pattern test section on the distance of the integral multiple of above-mentioned radius on the connecting line of the candidate's figure on the detected circumference and circle central point, give and high score.
According to image processing apparatus of the present invention, its feature also is, the special pattern on the image input part is printed on simultaneously by the two-sided detection of scanning document at least.
According to image processing apparatus of the present invention, its feature also is, further comprises the image efferent, and according to the testing result of special pattern test section, the control part control chart is as efferent output image or output image not.
According to image processing apparatus of the present invention, its feature also is, is judged to be when being printed with special pattern when the special pattern test section detects, and the control part control chart is as efferent output image not.
According to image processing apparatus of the present invention, its feature also is, is judged to be when being printed with special pattern when the special pattern test section detects, and the control part control chart is as the efferent output image.
According to image processing apparatus of the present invention, its feature is that also image processing apparatus of the present invention is a duplicating machine.
According to image processing apparatus of the present invention, its feature also is, further comprises Department of Communication Force, and according to the testing result of special pattern test section, control part control Department of Communication Force is to outside transmitted image data or transmitted image data not.
According to image processing apparatus of the present invention, its feature also is, is judged to be when being printed with special pattern when the special pattern test section detects, and control part control Department of Communication Force is to outside transmitted image data.
According to image processing apparatus of the present invention, its feature also is, is judged to be when being printed with special pattern when the special pattern test section detects, and control part control Department of Communication Force is not to outside transmitted image data.
According to image processing apparatus of the present invention, its feature is that also image processing apparatus of the present invention is a scanner.
According to image processing apparatus of the present invention, its feature is that also image processing apparatus of the present invention is a facsimile recorder.
According to image processing apparatus of the present invention, its feature also is, is judged to be when being printed with special pattern when the special pattern test section detects, and Department of Communication Force sends special pattern to the outside and detects information.
The following describes effect of the present invention.
Control detection special pattern of the present invention graph testing method, according to detect the special pattern result control image processor can image processing control, image processing apparatus and memory image processing controls program recording medium, with common printing process special pattern is printed on the document reverse side, so that do not damage the document read state, control the present invention can detect the above-mentioned special pattern that is printed on the document reverse side accurately.In addition,, use duplicating machine or scanner etc. printing is above-mentioned when forbidding duplicating document, can prevent improper duplicating by the detection special pattern in advance at this special pattern of forbidding duplicating of letter back face printing.
Description of drawings
Fig. 1 is the pie graph of the embodiment of the invention;
Fig. 2 is the processing flow chart of the embodiment of the invention;
Fig. 3 is special pattern one example;
Fig. 4 represents to obtain demonstration one example of image;
The demonstration that obtains image one example when Fig. 5 represents that literal and special pattern are overlapping;
Fig. 6 presentation graphic disposes first example;
Fig. 7 represents candidate's test pattern example as a result;
Fig. 8 is the key diagram that detects the relative position of candidate's figure;
Fig. 9 presentation graphic disposes second example;
Figure 10 represents to be applicable to an embodiment of printing machine;
Figure 11 represents to be applicable to another embodiment of printing machine;
Figure 12 represents to be applicable to another embodiment of printing machine;
Figure 13 represents to be made of program the example of the Flame Image Process control that detects special pattern.
Embodiment
With reference to the accompanying drawings, describe the embodiment of the invention in detail.
Fig. 1 is the pie graph of the embodiment of the invention, in Fig. 1, the 101st, the image input part of scanner section etc., the 102nd, as the special pattern test section of one of feature of the present invention, the 103rd, to scanning and the image image efferent that carries out imaging printing, the 104th, memory scanning and view data or the data store of each data in handling etc., the 105th, whole processing controls portion, the 106th, data communication channel, the 107th, the external notification device that communicates by network etc. and external device (ED) etc.
Fig. 2 is the processing flow chart of the embodiment of the invention, describes with reference to Fig. 2.Earlier carry out optical scanning by 101 pairs of documents of image input part and obtain image (step 201), picture signal is the many-valued or RGB full color signal of black and white.Then, special pattern test section 102 is from obtained image detection special pattern candidate (step 202).
In first embodiment, with black special pattern is printed on the reverse side of the document (paper) as sweep object, Fig. 3 represents special pattern one example.The document surface that back face printing is had special pattern scan and picture signal in, the special pattern of reverse side occurs with the intermediate concentration signal.
For example, when obtained picture signal is the many-valued occasion of black and white of 0 (in vain)～255 (deceiving), the special pattern of above-mentioned reverse side occurs with the intermediate concentration signal of class 5 about 0, and as shown in Figure 4, indicated concentration is talked state.This grade point is subjected to about the characteristic institute of papery and image input part 101, if have a mind to printing " forbidding duplicating document ", even select common paper also can select specific to a certain degree paper, and image input part characteristic can be distinguished in advance, so the grade point of expectation can be in the preset range.
Therefore, from the whole pixel that extracts above-mentioned concentration scale value of document, adjust comparison with the special pattern model, when consistent, detecting to the document back face printing has special pattern.In order to improve the adjustment precision, special pattern preferably adopts non-directional figure as far as possible, and, if will turn round invariant as characteristic quantity, adopt Fourier's (Fourier) descriptor or moment method known methods such as (moment),, also contrast above-mentioned figure easily even how many revolutions is arranged.
Above-mentioned detection special pattern also can be according to the concentration absolute value, and detects according to the relative difference with substrate (normally white) grade point.
When above-mentioned scanning and the document image be the full color occasion, it can be transformed into simple brightness composition after, with above-mentioned the same, adjust comparison process; Also can add according to the look information Recognition, for example, whether the color pixel of preset range be arranged.
In above-mentioned example, scanning document front also can be two-sided by the scanning document, detects the special pattern that is printed at least on certain face.
Then, 102 couples of special pattern candidates' of special pattern test section relative position is judged (step 203), and the document front is printed with the literal with reverse side pattern location independent system.Therefore, can expect that positive literal can overlap with the figure of reverse side, as shown in Figure 5, positive " spy " literal and the figure of reverse side overlap.Lap is many, just is difficult to adjust.In addition, if exist with intermediate grade tone printing, then also this part flase drop might be surveyed is special pattern in the document front portion.
So, then, judge according to detected some special pattern candidates' relative position relation whether this document is printed with the document of special pattern.For example, with the printing of distance d spacing, the special pattern candidate of testing result gained as shown in Figure 7 as shown in Figure 6 for special pattern.
At this, as shown in Figure 8, whether the position of investigating the radius d of certain candidate's figure exists other candidate's figure, if there is the occasion of candidate's figure, invest 1 fen to investigated certain candidate's figure,, or have two candidate's figure occasions that form 90 degree positions if there are two candidate's figure occasions that are positioned at 180 degree symmetric positions, invest 3 fens to investigated certain candidate's figure, calculate mark.In addition, on the connecting line that connects circle center and detected candidate's figure, on the distance of the certain multiplying power of d or integral multiple, there is other candidate's figure occasion, can gives and high score.
To detect and whole candidate's figures carry out above-mentioned this score and handle, finally calculate total points, when total points surpasses predetermined threshold (absolute value) occasion, judge that the back face printing of this document has special pattern.
Also can standardize, for example, consider the original size relation, as the standardization value,, judge that the back face printing of this document has special pattern this setting threshold with " total points/original copy area coefficient " to above-mentioned total points.
Forbid duplicating the above-mentioned special pattern occasion of back face printing of document, when step 203 was judged to be special pattern printing document, control chart did not carry out image printing (duplicating) as efferent 103.Also can not only not carry out the copying and printing of this document, also improper replication actions can be passed through other device of network untill further notice from external notification portion 107.
With above-mentioned opposite, when the above-mentioned special pattern occasion of back face printing that document is duplicated in permission, have only when step 203 is judged to be special pattern printing document, control chart carries out image printing (duplicating) output image as efferent 103.
The image that scans in Fig. 1 and get temporarily is stored in the data store 104, as store method, both can store whole image of document and detect special pattern, also can be after being taken into a part of image storage, extract candidate's figure at special pattern test section 102, investigate the configured in one piece relation at last.
Second embodiment is the embodiment that special pattern is printed on the document reverse side with colour, print each special pattern with the of the same colour or some kinds of looks beyond the black in advance, not only according to concentration value or the concentration difference described in above-mentioned first embodiment, but also detect each candidate's figure (whether detecting the pixel of special color) according to look information.And then when the investigation configured in one piece concerns, not only according to candidate's figure configuration state, and whether have regularity (for example the figure of special color shown in Figure 9 press specific direction arrange) according to the assortment of candidate's graphics packages, judge whether this color graphics exists the document reverse side.
The foregoing description is the example that whether exists the special pattern control that is printed on the document reverse side to duplicate the duplicating machine of (duplicating) action by detecting, and still, the present invention is not limited thereto, for example, also can be applicable to scanner.Whether in other words, the image efferent does not print, but as the mechanism to outside transmitted image, exist the special pattern control chart that is printed on the document reverse side to look like to read in action or image transmission action by detecting.
In addition, the present invention also can be applicable to and forbid that with being used to judge perhaps reproducible special pattern is printed on the printing machine of document reverse side.Figure 10 represents to be applicable to an embodiment of printing machine, sends document data and secret document print command from principal computer to printing machine, utilizes printed on both sides mechanism at the back face printing special pattern, in front printing document data.Figure 11 represents to be applicable to another embodiment of printing machine, by the positive configuration of the print drive software development document data of principal computer, the print command of reverse side configuration special pattern, it is sent to printing machine.
Figure 12 represents to be applicable to another embodiment of printing machine, and expression does not have printed on both sides mechanism occasion.With the AD HOC special pattern that is printed on one side, above-mentioned AD HOC can be the order from principal computer, perhaps specifies by the panel of printing machine.The positive and negative upset of paper that one side print is brushed with this special pattern is arranged in the paper feeding cassette of printing machine again, after this, prints document if receive from the document print command of principal computer, then exports the printout that back face printing has special pattern.
The present invention is not limited to specific hardware configuration, also can realize special pattern test section as theme of the present invention by program.Figure 13 represents to be made of program the example of the Flame Image Process control that detects special pattern, it is by image-input device, external memory, the program record medium device, image output device, CPU and peripheral equipment control part, external communication device constitutes, they connect by data communication channel, above-mentioned CPU and peripheral equipment control part link to each other with storer, the said external memory storage can be a hard disc etc., the said procedure recording medium device can be CD-ROM etc., in advance with the special pattern trace routine, the image Output Control Program is stored on this CD-ROM supervisor recording medium device.By the document image detection special pattern to input, but perhaps image output is forbidden in control.
Certainly, constitute when being not limited to above-mentioned Figure 13, for example, input picture does not need temporarily to preserve occasion, and external memory just can be provided with; With paper output occasion, image output device just can not be provided with input picture; Do not control occasion as a result to outside announcement Flame Image Process, external communication device just can be provided with.
Claims (27)
1. a graph testing method is characterized in that, by extracting the pixel in the predetermined concentration rate range the image that gets from the scanning document, detects the special pattern that is printed on the scanning plane reverse side.
2. a graph testing method is characterized in that, changes by detectable concentration the image that gets from the scanning document, detects the special pattern that is printed on the scanning plane reverse side.
3. a graph testing method is characterized in that, by extracting the pixel in the predetermined color scope the image that gets from the scanning document, detects the special pattern that is printed on the scanning plane reverse side.
4. graph testing method, from the scanning document and image detect be printed on the scanning plane reverse side be the special pattern of lattice-like with predetermined space, it is characterized in that, with detected candidate's figure is the center, investigation is whether to have other candidate's figure on the circumference of radius with above-mentioned predetermined space, if give and mark when existing, the mark of detected whole candidate's figures add up, according to this aggregate-value detection special pattern.
5. according to the graph testing method described in the claim 4, it is characterized in that, above-mentioned be to detect on the circumference of radius when having a plurality of other candidate's figure with the predetermined space, when relatively between the above-mentioned candidate's figure in round center angulation be the pre-timing of special angle, give and high score.
6. according to the graph testing method described in the claim 4, it is characterized in that, on the connecting line of the candidate's figure on the detected circumference and circle central point, on the distance of the integral multiple of above-mentioned radius, have other candidate's figure occasion, give and high score.
7. according to any described graph testing method among the claim 1-4, it is characterized in that, be printed on special pattern on the one side at least by scanning document two-sided detection.
8. an image processing control reads document, and the action of control document Flame Image Process is characterized in that, when being printed on the special pattern of document reverse side by the graph testing method detection of being put down in writing among the aforesaid right requirement 1-3, and the action of control document Flame Image Process.
9. image processing control, read document, the action of control document Flame Image Process, it is characterized in that, when the special pattern configuration relation that requires any one graph testing method of putting down in writing among the 4-6 to detect to be printed on the document reverse side by aforesaid right, look configuration relation, the action of control document Flame Image Process.
10. an image processing apparatus comprises image input part and control part, it is characterized in that, also comprises the special pattern test section, for the image from image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
11. according to the image processing apparatus described in the claim 10, it is characterized in that, above-mentioned special pattern test section is provided with pixel decimation portion, extracts the pixel in the predetermined concentration rate range from the image of image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
12. the image processing apparatus according to described in the claim 10 is characterized in that, above-mentioned special pattern test section is provided with pixel decimation portion, changes by detectable concentration from the image of image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
13. according to the image processing apparatus described in the claim 10, it is characterized in that, above-mentioned special pattern test section is provided with pixel decimation portion, extracts the pixel in the predetermined color scope from the image of image input part gained, detects the special pattern that is printed on above-mentioned image reverse side.
14. according to the image processing apparatus described in the claim 10, it is characterized in that, above-mentioned special pattern test section is provided with the special pattern judging part, from the image of image input part gained, detect be printed on above-mentioned image reverse side be the special pattern of lattice-like with predetermined space, with detected candidate's figure is the center, investigation is whether to have other candidate's figure on the circumference of radius with above-mentioned predetermined space, if give and mark when existing, mark to detected whole candidate's figures adds up, and detects special pattern according to this aggregate-value.
15. according to the image processing apparatus described in the claim 14, it is characterized in that, above-mentioned special pattern test section above-mentioned be to detect on the circumference of radius when having a plurality of other candidate's figure with the predetermined space, when angulation is special angle between the above-mentioned candidate's figure in round center relatively, give and high score.
16. according to the image processing apparatus described in the claim 14, it is characterized in that, there is other candidate's figure occasion in above-mentioned special pattern test section on the distance of the integral multiple of above-mentioned radius on the connecting line of the candidate's figure on the detected circumference and circle central point, give and high score.
17. any one the described image processing apparatus according among the claim 10-16 is characterized in that, the special pattern on the image input part is printed on simultaneously by the two-sided detection of scanning document at least.
18. any one the described image processing apparatus according among the claim 10-16 is characterized in that, further comprises the image efferent, according to the testing result of special pattern test section, the control part control chart is as efferent output image or output image not.
19. the image processing apparatus according to described in the claim 18 is characterized in that, is judged to be when being printed with special pattern when the special pattern test section detects, the control part control chart is as efferent output image not.
20. the image processing apparatus according to described in the claim 18 is characterized in that, is judged to be when being printed with special pattern when the special pattern test section detects, the control part control chart is as the efferent output image.
21. the image processing apparatus according to described in the claim 18 is characterized in that, this image processing apparatus is a duplicating machine.
22. according to any one the described image processing apparatus among the claim 10-16, it is characterized in that, further comprise Department of Communication Force, according to the testing result of special pattern test section, control part control Department of Communication Force is to outside transmitted image data or transmitted image data not.
23. the image processing apparatus according to described in the claim 22 is characterized in that, is judged to be when being printed with special pattern when the special pattern test section detects, control part control Department of Communication Force is to outside transmitted image data.
24. the image processing apparatus according to described in the claim 22 is characterized in that, is judged to be when being printed with special pattern when the special pattern test section detects, control part control Department of Communication Force is not to outside transmitted image data.
25. the image processing apparatus according to described in the claim 22 is characterized in that, this image processing apparatus is a scanner.
26. the image processing apparatus according to described in the claim 22 is characterized in that, this image processing apparatus is a facsimile recorder.
27. the image processing apparatus according to described in the claim 22 is characterized in that, is judged to be when being printed with special pattern when the special pattern test section detects, Department of Communication Force sends special pattern to the outside and detects information.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP041320/1999 | 1999-02-19 | ||
| JP4132099 | 1999-02-19 | ||
| JP041320/99 | 1999-02-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1264096A CN1264096A (en) | 2000-08-23 |
| CN1237476C true CN1237476C (en) | 2006-01-18 |
Family
ID=12605236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001023438A Expired - Fee Related CN1237476C (en) | 1999-02-19 | 2000-02-17 | Pattern detecting method, image processing control method, image processing device and recording medium |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100426230B1 (en) |
| CN (1) | CN1237476C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423533C (en) * | 2003-02-25 | 2008-10-01 | 夏普株式会社 | Image processing device |
| DE102004019978B3 (en) * | 2004-04-23 | 2005-08-04 | Koenig & Bauer Ag | Assessing quality of printed object produced by printer involves producing several examples of same printed object, selected limited number of examples, producing image data record, assessing using image data in relation to error type(s) |
| JP2006025255A (en) * | 2004-07-08 | 2006-01-26 | Sharp Corp | Image reader |
| JP4343820B2 (en) * | 2004-12-13 | 2009-10-14 | 株式会社リコー | Image processing device |
| CN100338549C (en) * | 2005-09-02 | 2007-09-19 | 北京北大方正电子有限公司 | An anti-copy method for documents |
| KR100748623B1 (en) | 2005-09-26 | 2007-08-13 | 삼성전자주식회사 | Image forming apparatus printing security document by duplicating method and method thereof |
| CN101136065B (en) * | 2006-08-31 | 2011-04-06 | 郑阿奇 | Method for controlling copy function in reproduction system |
| JP4398971B2 (en) * | 2006-12-07 | 2010-01-13 | シャープ株式会社 | Image processing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0136042B1 (en) * | 1992-08-03 | 1998-04-27 | Richo Co Ltd | Document identifier which can also identify special ticket, image forming apparatus using the identifier, image processor and copying machine |
| US6104833A (en) * | 1996-01-09 | 2000-08-15 | Fujitsu Limited | Pattern recognizing apparatus and method |
-
2000
- 2000-02-17 CN CNB001023438A patent/CN1237476C/en not_active Expired - Fee Related
- 2000-02-17 KR KR10-2000-0007500A patent/KR100426230B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010006644A (en) | 2001-01-26 |
| KR100426230B1 (en) | 2004-04-08 |
| CN1264096A (en) | 2000-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3052947B2 (en) | Pattern recognition device, pattern recognition method, storage medium storing pattern recognition method, and copy prevention system | |
| US8009305B2 (en) | Method, program, and apparatus for detecting a copy-prohibited document and prohibiting a reproduction of the detected copy prohibited document | |
| US6370271B2 (en) | Image processing apparatus and methods for pattern recognition | |
| US8494304B2 (en) | Punched hole detection and removal | |
| JP3178305B2 (en) | Image processing method and apparatus, copier, scanner and printer equipped with the same | |
| JPH01161490A (en) | Image decomposing copy reference system | |
| US20060039628A1 (en) | Detecting skew angle in a scanned image | |
| JP7017060B2 (en) | Image processing device and image processing program | |
| US7720290B2 (en) | Method, program, and apparatus for detecting specific information included in image data of original image, and computer-readable storing medium storing the program | |
| CN1237476C (en) | Pattern detecting method, image processing control method, image processing device and recording medium | |
| US6222934B1 (en) | Test chart for determining the image quality of an optical scanner | |
| JP2009077049A (en) | Image reader | |
| CN101197896A (en) | Image processing apparatus, image processing method | |
| US7554698B2 (en) | Robust document boundary determination | |
| US20110170133A1 (en) | Image forming apparatus, method of forming image and method of authenticating document | |
| CN1848905A (en) | Image processing apparatus, image processing system, and image recording apparatus | |
| US8126193B2 (en) | Image forming apparatus and method of image forming | |
| US11941937B2 (en) | Methods and systems for automatically identifying IR security marks based on known halftone frequency and color information | |
| CN100553284C (en) | Document processing device, document processing and document processing method | |
| JP4014070B2 (en) | Pattern detection method and image processing control method | |
| US7391884B2 (en) | Correlative assessment between scanned and original digital images | |
| AU2008259730B2 (en) | Method of producing probabilities of being a template shape | |
| JP4055525B2 (en) | Image processing apparatus, image processing method, and image processing program | |
| JPH11316839A (en) | Method and device for picture rough recognition, medium with picture rough recognition program recorded, picture recognition device, and color copying device | |
| JP3178440B2 (en) | Image processing method and apparatus, copier, scanner and printer equipped with the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060118 Termination date: 20140217 |