CN100505816C - Image processing device, image processing method - Google Patents
Image processing device, image processing method Download PDFInfo
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- CN100505816C CN100505816C CNB2006100931348A CN200610093134A CN100505816C CN 100505816 C CN100505816 C CN 100505816C CN B2006100931348 A CNB2006100931348 A CN B2006100931348A CN 200610093134 A CN200610093134 A CN 200610093134A CN 100505816 C CN100505816 C CN 100505816C
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Abstract
The present invention relates to an image processing device, an image processing method, a computer-readable image processing program, and a computer-readable recording medium, which are adapted for prevention of illegal copying. In an image processing device which extracts predetermined information from a paper document in which the predetermined information is embedded, and performs a predetermined process in accordance with the extracted information and a request from a user, an attribute judgment unit determines an attribute of the paper document from the extracted information. A certification-information acquisition unit acquires certification information including an attribute of the user. A control unit performs a predetermined process based on the attribute of the paper document and the certification information.
Description
Technical field
The present invention relates to prevent improper image processing apparatus that duplicates and image processing method.
Background technology
In recent years, because the raising of image processing techniques and definition technique using digital color copier to duplicate the occasion of bank note and marketable securities, has reached the almost nondescript degree of copy and original paper.Therefore, be necessary to take measures, make special original copys such as bank note or marketable securities can not be copied or can not correctly be duplicated.
In addition, for example in enterprises, even be not the such special original copy of bank note or marketable securities, but general data, still, from the viewpoint of maintaining secrecy, the data that does not allow to duplicate also is a lot.To such confidential data, also be necessary to take measures to make it can not duplicate fully, or can not correctly duplicate.
Thus, also there are some to make special original copys such as bank note or marketable securities can not duplicate invention, existing it are described below into purpose.
For example, open flat 6-125459 and the spy opens among the 2001-86330, proposed a kind of like this scheme the spy.That is, at first, the specific sign (pattern data) of the view data of input with input in advance compared, when having specific sign to exist, just judge that this original copy is special original copy as discovery as bank note or marketable securities are differentiated.The content of these inventions is exactly when judging that original copy is special original copy, and it can not be duplicated.
As the invention of differentiating the classified papers that to duplicate, for example there is the spy to open flat 7-36317 and the spy opens flat 7-87309.These two disclosure of the Invention a kind of be that the sign of classified papers detects to expression this document of on classified papers, having, thereby judge whether this document is classified papers whether technology.This technology is to have utilized generally on the classified papers that can not duplicate, and all is stamped the printed words of secret or is printed on and forbid duplicating the pattern this point.Thus, judging that original copy is the classified papers occasions, just forbidding duplicating.
Further, open flat 9-164739 and the spy opens among the 2001-197297, proposed a kind of like this invention the spy.Promptly in will forbidding the original copy that duplicates, imbed shading, suppress the carrying out of duplicating thus.This is to have the cause of the burelage of basic field and message area owing to be used for the paper of original image.Burelage in the original copy pattern, dressed to eh nines not, thereby do not hinder information in the identification original copy.But when the original image of having imbedded such textured pattern was duplicated, the pattern of message area then can be heaved.As the pattern of message area, can be for example " to forbid duplicating " such literal.Like this, this original copy is that the classified papers that can not duplicate just become very clear.Thereby just can produce restraint psychologically to duplicating.
It is that for example dot pattern overlaps the one side that image is arranged of original image with the pattern of expression information specific that the spy opens the 2004-274092 invention disclosed.In the occasion that this original image is read, the pattern of such dot pattern etc. is detected, thereby can control the output of original image.
The problem of invention
In above-mentioned prior art,, perhaps export the method that to recognize the image of reading and suppress wrongful duplicating though, can heave by making pattern in the occasion of carrying out wrongful duplicating.But these inventions only can be carried out same processing to an information.
The present invention is exactly in view of such problem points, provides a kind of to the effective image processing apparatus, image processing method, the pattern process computer program that prevent improper duplicating and store this computer program recorded medium.
The content of invention
In order to solve above-mentioned problem, of the present invention theing contents are as follows:
1. image processing apparatus, it is extracted this information out from imbed the paper file of deciding information to some extent, and according to the information of this extraction and user's indication carry out fixed processing, it is characterized in that this image processing apparatus comprises,
The determined property device is used for judging from the information of above-mentioned extraction the attribute of above-mentioned paper file;
The authentication information acquisition device is used to obtain the authentication information that contains above-mentioned attribute of user;
Control device is used for carrying out the fixed processing of institute according to the attribute and the authentication information of above-mentioned paper file.At this, for example when the user carried out wrongful facsimile transmission with original image, image processing apparatus of the present invention also can carry out suitable processing, to prevent wrongful duplicating.
2. according to above-mentioned 1 image processing apparatus, it is characterized in that it has the storage device that the image that forms on the above-mentioned paper file is stored.
3. according to above-mentioned 1 or 2 image processing apparatus, it is characterized in that being the occasion of forbidding above-mentioned paper file is carried out fixed processing when the property determine of above-mentioned control device above-mentioned authentication information of foundation and above-mentioned paper file, above-mentioned control device is exported the image setting of above-mentioned paper file for not recognizing the image of reading.
4. according to each the image processing apparatus of above-mentioned 1-3, it is characterized in that the above-mentioned paper file-related information that information contains relevant above-mentioned paper fileinfo of deciding, above-mentioned control device is stored in above-mentioned paper file-related information in the above-mentioned storage device.
5. according to each the image processing apparatus of above-mentioned 1-4, the attribute that it is characterized in that above-mentioned file contain corresponding to above-mentioned authentication information whether forbid the security classification of fixed processing, above-mentioned control device according to above-mentioned authentication information and above-mentioned security classification with regard to whether can to above-mentioned paper file carry out fixed processing judge.
6. according to each the image processing apparatus of above-mentioned 1-5, it is characterized in that judging and forbid above-mentioned paper file is carried out above-mentioned occasion of deciding processing when above-mentioned control device, carry out fixed notice.
7. image processing method for image processing apparatus is wherein decided from imbedding the paper file of information this information to be extracted out, and according to the information of this extraction and user's indication carry out fixed processing, it is characterized in that this image processing method comprises,
Determined property operation, this operation are judged the attribute of above-mentioned paper file from the information of above-mentioned extraction;
Authentication information is obtained operation, and this operation obtains the authentication information that contains above-mentioned attribute of user;
Control operation, this operation carry out carrying out the fixed processing of institute according to the attribute of above-mentioned paper file and authentication information.At this, when for example making the user want that original image carried out wrongful facsimile transmission at once, also can carry out suitable processing according to image processing method of the present invention, to prevent wrongful duplicating.
8. according to above-mentioned 7 image processing method, it is characterized in that above-mentioned image processing apparatus also has the device that the image that will form on the above-mentioned paper file is write down.
9. according to above-mentioned 7 or 8 image processing method, it is characterized in that, when forbid according to the property determine of above-mentioned authentication information and above-mentioned paper file to above-mentioned paper file carry out the occasion of fixed processing, in above-mentioned control operation, the image setting of above-mentioned paper file is exported for not recognizing the image of reading.
10. according to each the image processing method of above-mentioned 7-9, it is characterized in that the above-mentioned paper file-related information that information contains the information of relevant above-mentioned paper file of deciding, in above-mentioned control operation, above-mentioned paper file-related information is stored in the above-mentioned storage device.
11. each image processing apparatus according to above-mentioned 7-10, the attribute that it is characterized in that above-mentioned file contain corresponding to above-mentioned authentication information whether forbid the security classification of fixed processing, above-mentioned control operation according to above-mentioned authentication information and above-mentioned security classification with regard to whether can to above-mentioned paper file carry out fixed processing judge.
12., it is characterized in that when in above-mentioned control operation according to each the image processing method of above-mentioned 7-11, judge and forbid above-mentioned paper file is carried out above-mentioned occasion of deciding processing, carry out fixed notice.
13. computer-readable computer program for image processing apparatus, described image processing apparatus is extracted this information out from imbed the paper file of deciding information to some extent, and according to the information of this extraction and user's indication carry out fixed processing, it is characterized in that the operation that this computer program is carried out comprises
Determined property operation, this operation are judged the attribute of above-mentioned paper file from the information of above-mentioned extraction;
Authentication information is obtained operation, and this operation obtains the authentication information that contains above-mentioned attribute of user;
Control operation, this operation carry out carrying out the fixed processing of institute according to the attribute of above-mentioned paper file and authentication information.At this, for example when the user carried out wrongful facsimile transmission with original image, image processing method of the present invention also can carry out suitable processing, to prevent wrongful duplicating.
14. the computer-readable medium that will be stored for the computer-readable computer program of image processing apparatus, described image processing apparatus is extracted this information out from imbed the paper file of deciding information to some extent, and according to the information of this extraction and user's indication carry out fixed processing, it is characterized in that the operation that described computer program is carried out comprises
Determined property operation, this operation are judged the attribute of above-mentioned paper file from the information of above-mentioned extraction;
Authentication information is obtained operation, and this operation obtains the authentication information that contains above-mentioned attribute of user;
Control operation, this operation carry out carrying out the fixed processing of institute according to the attribute of above-mentioned paper file and authentication information.
The effect of invention
The invention provides the preferable image processing unit, image processing method, pattern process computer program and the medium that prevent illicit copy.
The simple declaration of accompanying drawing
Fig. 1 is the front elevation of original image example.
Fig. 2 is the ideograph of one of the duplicating thing of the original image that appears in one's mind of the burelage (background dot pattern) of imbedding original copy example.
Fig. 3 is another routine ideograph of the duplicating thing of the original image that appears in one's mind of the burelage (background dot pattern) of imbedding original copy.
Fig. 4 is the extension mode figure of burelage (background dot pattern) shown in Figure 2.
Fig. 5 is the extension mode figure of burelage (background dot pattern) shown in Figure 3.
Fig. 6 is the illustration figure of the basic pattern in the embodiments of the present invention.
Fig. 7 is the illustration figure that appends pattern in the embodiments of the present invention.
Fig. 8 is the arranged in patterns and the schematic diagram of first example of the information of performance therefrom.
Fig. 9 is the arranged in patterns and the schematic diagram of second example of the information of performance therefrom.
Figure 10 is the arranged in patterns and the schematic diagram of the 3rd example of the information of performance therefrom.
Figure 11 carries out angle under the quantized occasion with 6 operations, the form schematic diagram of the basic pattern in each operation.
Figure 12 carries out angle under the quantized occasion with 6 operations, the form schematic diagram that appends pattern in each operation.
Figure 13 is by the arrangement of pattern and the schematic diagram of first example of the relative or absolute information that angle showed.
Figure 14 is by the arrangement of pattern and the schematic diagram of second example of the relative or absolute information that angle showed.
Figure 15 is by the arrangement of pattern and the schematic diagram of the 3rd example of the relative or absolute information that angle showed.
Figure 16 is the schematic block diagram of hardware resource of the image processing apparatus of the 1st embodiment of the present invention.
Figure 17 is the block diagram of pattern detection portion.
Figure 18 is the schematic block diagram of hardware resource of the image processing apparatus of the 2nd embodiment of the present invention.
Figure 19 is the schematic block diagram of hardware resource of the image processing apparatus of the 3rd embodiment of the present invention.
Figure 20 is the flow chart of handling according to the information of imbedding original copy.
Figure 21 is the sample table that authentication information is judged.
Figure 22 is the exemplary plot of original image relevant information.
The embodiment of invention
Below, according to accompanying drawing embodiments of the present invention are described.
In the present embodiment, " paper file " is called " original image ".In the present embodiment, earlier original image and method that information is imbedded in the original image are described, then, the structure of image processing apparatus and the flow process of processing are described.
At first, with reference to Fig. 1-5, the original image of present embodiment is described.
Fig. 1 is the front elevation of original image example.Fig. 2 is the ideograph of one of the duplicating thing of the original image that appears in one's mind of the burelage (background dot pattern) of imbedding original copy example.Fig. 3 is another routine ideograph of the duplicating thing of the original image that appears in one's mind of the burelage (background dot pattern) of imbedding original copy.Fig. 4 is the extension mode figure of burelage (background dot pattern) shown in Figure 2.Fig. 5 is the extension mode figure of burelage (background dot pattern) shown in Figure 3.
In example shown in Figure 1, original image 101 is contracts.As the original copy paper of original image 101, used the standardized writing paper with squares or lines 102 that on its background, has the background dot pattern 103 (Fig. 2) as burelage to be embedded in.But, as other execution mode, can use the standardized writing paper with squares or lines that does not have shading 103, and, form burelage 103 simultaneously making its content when being the contract original image.That is to say, burelage 103 can be on standardized writing paper with squares or lines 102 printing in advance, formed when also can on standardized writing paper with squares or lines 102, form literal and figure etc.
The occasion of the original image 101 that makes with such standardized writing paper with squares or lines 102, as original image is duplicated, the part of burelage 103 will be appeared in one's mind.So, in the original image shown in Fig. 2 101, will appear in one's mind by " forbid duplicate " message area 105 that several literal showed, and in Fig. 3 the situation of illustrated original image, be that basic field 104 appears in one's mind out.
So, as the original image 101 of imbedding burelage 103 is duplicated, in burelage 103, a certain side of message area 105 and basic field 104 will be appeared in one's mind out, why like this, be because the opposing party's field 104 or 105 is difficult to duplicate the cause of (reproduction).In other words, because the side's that can not appear in one's mind field 104 or 105 disappearance, the opposing party's who remains field 104 or 105 will be appeared in one's mind out.
The burelage 103 of this phenomenon takes place, as Fig. 4 and shown in Figure 5, be to constitute by two kinds of point sets that vary in size are incompatible.Promptly among these two kinds of points 106, little some 106b is difficult to duplicate (reproduction), and big some 106a then is copied.Therefore, in the burelage shown in Figure 2 103 that the message area 105 after duplicating appears in one's mind, as shown in Figure 5, the point 106b that a side in formation base field 104 is to use, a little bigger 106a that a side in configuration information field 105 is to use.On the other hand, in the burelage shown in Figure 3 103 that basic field 104 appears in one's mind after duplicating, as shown in Figure 4, side's usefulness in configuration information field 105 be point 106b, a little bigger 106a that a side in formation base field 104 is to use.
As other configuration example of burelage 103, message area 105 that appears in one's mind or basic field 104 are not limited to a little, also can use the pattern of thread pattern or specific shape to constitute.
In the present embodiment, message area 105 or basic field 104 are treated as characteristic quantity.For example, when message area 105 that appears in one's mind in hypothesis or basic field 104 are made of point 106, its size and density (counting of unit are), when the message area 105 that appears in one's mind in hypothesis or basic field 104 are made of fine rule, the width of line, when message area 105 that appears in one's mind in hypothesis or basic field 104 were made of specific style, the feature of its style can be used as characteristic quantity respectively.
In above example, the message area 105 that just appears in one's mind or the characteristic quantity of basic field 104 limit.But as such characteristic quantity, to basic field 104 or the message area 105 that does not appear in one's mind, the both sides of message area 105 that perhaps appears in one's mind or basic field 104 and basic field 104 that does not appear in one's mind or message area 105 all can be asked for respectively.Key is to read record when the original image 101 of the view data of having imbedded burelage 103 is arranged, if the either or both of its basic field 104 or message area 105 is readable as data, just it can treated as characteristic quantity.In addition, in the view data that the burelage 103 that the form with data exists is imbedded,, just it can be treated as characteristic quantity if the either or both of the basic field 104 of formation burelage 103 or message area 105 is readable as data.
As other execution mode, dot pattern also can be used burelage 103 pattern in addition as a setting, and this narrates in front.For example, can use the pattern of the basic field 104 that only is equivalent in the burelage 103 and the pattern that only is equivalent to message area 105.When reading the original image 101 of pattern,, just it can be treated as characteristic quantity if basic field 104 or message area 105 are readable as data with the pattern that is equivalent to basic field 104 or message area 105.Perhaps, in the view data that the pattern suitable with basic field 104 that has that form with data exists or message area 105 suitable patterned background dot patterns are embedded in, if the pattern suitable with the basic field 104 that constitutes burelage 103 or readable as data with message area 105 suitable patterns just can be treated it as characteristic quantity.
But, in the present embodiment, comprise burelage 103, be also to consider to view data by the occasion that the color more than one or two forms coloured image based on original image 101.Promptly in the present embodiment, according to based in the institute fixation space (rgb space and CMY space) of the view data of original image 101 fixed colour content, can detect burelage 103.
By the image that scanner reads in, generally the occasion with the RGB image is many.Therefore, with burelage 103 in the detected occasion in CMY space, to carry out image transform (being transformed to the CMY space) to view data based on the RGB image of original image 101, and by using the characteristic quantity based on a kind of colour content (C, M or K) in CMY space to carry out the detection of burelage 103.On the other hand,, do not carry out image transform, and be to use characteristic quantity to carry out the detection of burelage 103 in the detected occasion of rgb space as burelage 103 quilts based on the colour content (R, G or B) in the rgb space.But, do not have necessity of a colour content of non-use, also can be simultaneously with other colour contents as detected object.In addition, also can carry out the detection of burelage 103,, come security classification (to the people's that can duplicate restriction rank) is changed then according to having detected the burelage 103 of that colour content with regard to each colour content.
So, by with the fixed color space fixed colour content detect burelage 103, be exactly burelage 103 be with light colour by additional occasion, also can keep practical accuracy of detection.And, detect the occasion of burelage 103 at rgb space, owing to do not carry out necessity of image transform, so can reach the high speed of processing.
Below, in the present embodiment, use fixed pattern in original image, imbed information, and the technology that the information of imbedding is extracted out is illustrated.As the field that information is imbedded, use basic field 104.This be because, in general, basic field 104 is compared with message area 105, it is big that its area is wanted, and be suitable for imbedding and extracting out of information.Below, will be without the dot pattern of Fig. 4 or Fig. 5, but the relativeness of 2 kinds of patterns representing with Fig. 6 or Fig. 7 is come performance information.1 kind of two kinds of patterns is called " basic pattern " other a kind of pattern is called " appending pattern ".
Fig. 6 is the schematic diagram of example of the basic pattern of present embodiment.In Fig. 6, basic pattern 107 is made of 107a, 107b and three points of 107c.
Fig. 7 is the schematic diagram that appends the example of pattern in the present embodiment.In Fig. 7, append pattern 108 and constituted by a 108a, 108b, 108c and four points of 108d.Preferably append pattern 108 and have at least a part identical with the characteristic quantity of basic pattern 107, its reason is described later.In the present embodiment, be to make the relativeness of a 108a, 108b, 108c identical with three points that constitute basic pattern 107.Appending pattern 108 appends a 108d and forms on basic pattern 107.
In addition, about basic pattern 107 and append pattern 108, the relative position relation of the number of point and point is not limited to the form of Fig. 6 and Fig. 7.As long as with basic pattern 107 with append pattern 108 differences and come.
As the relativeness of above two kinds of patterns, with basic pattern 107 and append pattern 108 relative position relation and, basic pattern 107 is carried out expressing information with the relative angle of appending pattern 108.
Fig. 8 is the arrangement of pattern and the schematic diagram of first example of the information of performance therefrom.
The arrangement 111-1 of Fig. 8 is that the unit domain arrangement that will dispose a pattern becomes 2 row, 4 row and formation.In the constituent parts field, configuration basic pattern 107 or append either party of pattern 108.In the example of Fig. 8, unit field (a), (d) and (g) dispose basic pattern 107, other unit domain arrangement is appended pattern 108.At this, as with basic pattern 107 as 0, will append pattern as 1, then arrange 111-1 and just be transformed into, 0 and 1 the arrangement that 111-2 is represented.As arranging each key element of 111-2, for example from up sequence arrangement, just become such " 01101101 " shown in 111-3, thus the binary message of 8bit just.So,, just can imbed the information of 8bit as arranging 111-1 and original image 101 overlaids.
In addition, Fig. 9 is the arrangement of pattern and the schematic diagram of second example of the information of expression therefrom.
In Fig. 9, arrange 112-1 and constitute by the unit field that 3 row 3 are listed as.Unit field (a), (f), (g) and (h) dispose basic pattern 107, other unit domain arrangement is appended pattern 108.At this, press the mode of Fig. 8, will arrange 112-1 and be transformed into 112-2, further, obtain ordered series of numbers 112-3 (011110001).So,, just can imbed the information of 9bit as arranging 112-3 and original image 101 overlaids.
Further, Figure 10 is the arrangement of pattern and the schematic diagram of the 3rd example of the information of expression therefrom.
The arrangement 113-1 of Figure 10 by 3 row 3 row to constitute this point identical with the arrangement 112-1 of Fig. 9 in the unit field.But its content difference.That is, dispose basic pattern 107 at unit field (a) and (b), (e), other unit domain arrangement is appended pattern 108.To arrange 113-1 and be transformed into 113-2, further, obtain ordered series of numbers 113-3 (001101111).
As Fig. 8, Fig. 9 and shown in Figure 10, the amount of information when representing information, the restriction of the number in the unit of being subjected to field with the arrangement of pattern.That is, as with amount of information as I, with the number in unit field as n, I=n (bit) then.
Preferably the arrangement with a plurality of same patterns repeats overlapping.This is because according to the position overlapped of arranging since with the relation of original image 101, pattern has and is difficult to detected problem sometimes, about this point, as carrying out overlappingly with a plurality of, arranging detected possibility will uprise, and the precision of the detection of information will uprise.
In addition, more than be to use basic pattern 107 and append that 108 2 kinds of patterns of pattern describe, but also can use the pattern more than three kinds also passable.As pattern,, can imbed the information of logN (end is 2, below identical) bit in the constituent parts field with the N kind.Therefore, the amount of information of 1 arrangement (I) is,
I＝n×logN(bit)
More information can be imbedded (number that n is the unit field) thus.At this, the difference of the kind of pattern is not restricted to arrangement a little, for example also can use color a little.That is,,, also can come by part or all the color of point that constitutes each pattern is distinguished with other pattern even same fully as the arrangement of point.Certainly, also can come identifying species by the arrangement of point and the color combination of point.
Below, will come the example of performance information to describe to relative angle (also can show as relative direction difference) by two kind patterns.In the occasion of representing information with relative angle, by with basic pattern 107 and append the angle quantization that pattern 108 can be obtained,, be preferred scheme from the viewpoint of the extraction precision of information.In the present embodiment, just dividing 6 operations to carry out quantization, the occasion of promptly at every turn rotating 60 degree describes.
Figure 11 is the schematic diagram of pattern that angle is divided the basic pattern of each operation that 6 operations carry out quantized occasion.In pattern 11,, be followed successively by 0 operation, first operation, second operation, the 3rd operation, the 4th operation, the 5th operation from left end.In each operation, the arrow in circle is drawn for the direction (angle) with each operation illustrates popularly.
In addition, Figure 12 is the schematic diagram that angle is divided the form of appending pattern of each operation that 6 each operation carry out quantized occasion.
Owing to be relative angle, so can differently come performance information by what make basic pattern 107 and the process number that appends pattern 108 (or angle).For example, N different operation just can show numerical value of N.In this occasion, basic pattern 107 situation identical with the direction of appending pattern 108 is as 0.First operation, second operation, the 3rd operation, the 4th operation, the relative angle of the 5th operation are shown as " 1 ", " 2 ", " 3 ", " 4 ", " 5 " respectively.
Owing to be relative, so that the presentation style of " 1 " has is a plurality of.Promptly when each operation of 0,1,2,3,4 of basic pattern 107, as to append pattern 108 also be 1,2,3,4,5 operations, can show " 1 ".The performance of other value too.
In addition, only use the occasion of relative angle representations information, basic pattern 107 and append pattern 108, at which location overlap of basic field 104 all it doesn't matter.As long as basic pattern 107 is carried out overlapping just passable with at least 1 that appends among pattern 108 both sides.Like this, as with the quantization operation as n, the amount of information (I) of imbedding an original image 101 is
I＝logn(bit)
In the example of Figure 11 and Figure 12, owing to carried out the quantization of 6 operations
I＝log6＝2.4…≥2(bit)
At least can imbed the above information of 2bit.
But, in above-mentioned example, owing to only consider basic pattern 107 and the relative angle of appending pattern 108, and do not consider two patterns and relative angle original image 101 (direction).This is because consider that the scanner of original image 101 reads, and might produce the realistic problem of error with the direction of paper when output paper file.That is, when only considering the relative angle of two patterns, original image 101 is not no matter to which direction rotation, its relative angle can be influenced, thereby can improve the extraction precision of information.
But, about the direction of original image 101, as be in the state that can get assurance to a certain degree, the angle (hereinafter referred to as " absolute angle ") of each pattern and original image 101 is taken in also be fine.In such occasion, even the relative angle of two patterns is identical, which type of angle is arranged according to basic pattern 107 and original image 101, can further show different information.Therefore, with above-mentioned same, if absolute angle is carried out quantization with n operation, the amount of information that then can imbed 1 original image 101 is
I＝n×logn(bit)
Further, the expression information of also the relative position (arrangement) of two patterns and relative angle or absolute combination of angles can being got up.
Figure 13 is by the arrangement of pattern and the schematic diagram of first example of the relative or absolute information that angle showed.
The arrangement 114-1 of Figure 13 is made of the unit field of 2 row, 4 row.At unit field (a), (d) and (g), configuration is by basic pattern 107; In the other unit field, dispose and append pattern 108.When considering relative angle, the difference of the angle of two patterns is 1 operation.At this, " 0 " is distributed to basic pattern 107.So, 114-2 can be obtained arranging, further, ordered series of numbers 114-3 (" 01101101 ") can be obtained from arranging 114-1.
In addition, when considering absolute angle, the angle of basic pattern 107 is 0 operations; The angle of appending pattern 108 is 1 operation.In this occasion, can obtain and above-mentioned same ordered series of numbers 114-3.
In addition, Figure 14 is by the arrangement of pattern and the schematic diagram of second example of the relative or absolute information that angle showed.
The arrangement 115-1 of Figure 14 has the unit field of 3 row, 3 row to constitute.At unit field (a), (f), (g) and (h), dispose basic pattern 107, other unit domain arrangement is appended pattern 108.The differential seat angle of two patterns is 2 operations.If consider equally with Figure 13, no matter be relative occasion, still absolute occasion all can obtain arranging 115-2 from arranging 115-1.Further, can obtain ordered series of numbers 115-3 ([022220002]).
Further, Figure 15 is the schematic diagram of the 3rd example of the information that shows of arrangement and absolute angle with pattern.
The arrangement 116-1 of Figure 15 has the unit field of 3 row, 3 row to constitute.At unit field (a) and (b) and (e), dispose basic pattern 107, other unit domain arrangement is appended pattern 108.As only considering absolute angle, the angle of basic pattern 107 is 5 operations; Appending pattern 108 is 1 operation.Therefore, can obtain arranging 116-2 from arranging 116-1.Further, can obtain ordered series of numbers 116-3 ([551151111]).
So, the arrangement of pattern is made up, can further be showed the doubly amount of information of (m is the number in unit field) of m.
In addition, also can use pattern more than 3 kinds.Use the amount of information (I) of the pattern occasion of N kind can become above-mentioned N doubly.
Here, the difference of said pattern is not limited only to arrangement a little, for example also can use color a little.That is,, also can distinguish mutually with other pattern with part or all color of the formation of each pattern even the arrangement of point is just the same.Certainly, also the arrangement of point and the color combination of point can be got up carry out the difference of kind.
Imbedding to original image in the method for information as described above because the size of each pattern may diminish to several millimeters degree, therefore with this method of imbedding, in 1 original image, can be imbedded the information of hundreds of bit.
Based on above-mentioned consideration method, below just carry out information device device, method and the computer program imbedding or extract out be illustrated.
Figure 16 is the schematic block diagram of hardware resource of the image processing apparatus of the 1st execution mode of the present invention.Figure 17 is the block diagram of pattern detection portion.As shown in figure 16, the image processing apparatus 10 of present embodiment is by the scanner 201 as image read-out of system controller control, image processing part 202, image that digital circuit the constitutes digital copy systems of forming such as 203 of doing to grow up to be a useful person.System controller 204 is used for the function of the computer of being made up of CPU204a, the ROM204b of interior dress and RAM204c etc. is applied flexibly.To scanner 201, do to grow up to be a useful person and 203 control by image processing part 202 and image according to the indication of operation expression portion 205 for system controller 204, with the information back operation expression portion 205 of necessity and it is represented.In addition, though do not represented in the accompanying drawing,, system controller also has fixedness memory storages such as hard disk, flash memories, NV-RAM.
The image processing part 202 of first execution mode further has pattern detection portion 210, information extraction handling part 211, coloured image transformation component 212, selector 213 etc.They are the digital circuit hardware of installing by for the information that will imbed image is extracted out.The original image 101 that is read from original copy by scanner 201 can impose the rotation revisal, and output to coloured image transformation component 212 where necessary.But, imbed the occasion of information with basic pattern 107 and the relative angle that appends pattern 108, the rotation revisal might not be necessary.
On the other hand, in pattern, the occasion that the point of the colour content of rgb space (for example G composition) is detected, coloured image transformation component 212 does not carry out image transform to original image 101.In this occasion, what the coloured image transformation component will be as the stain composition of rgb space, for example the image in the look road of G composition outputs in the pattern detection portion 210.
For either party of the former (being transformed to the occasion in CMY space) and latter (the intact occasion of rgb space), about with the problem in the coloured image output pattern test section 210 of which colour content, can predetermined fixed, also can set by the user by operation expression portion 205.
In addition, also can use with the characteristic quantity of basic pattern 107 and will be satisfied with the method that the pattern of this characteristic quantity detects.As the characteristic quantity of basic pattern 107, can be the distance that for example constitutes between the each point of basic pattern 107.That is, calculate the characteristic quantity of each pattern in the original image 101, then the characteristic quantity of calculating and the characteristic quantity that is kept at the basic pattern 107 among the ROM204b etc. are in advance compared.As both unanimities, then be exactly to have detected basic pattern 107.
In the present embodiment, appending pattern 108 is included in basic pattern 107 former states wherein unchangeably.Therefore, at basic pattern test section 251, not only basic pattern 107, append pattern 108 and also are used as basic pattern 107 and detect.
Moreover, with basic pattern 107 and the occasion that the relative angle that appends pattern 108 comes performance information,, pattern or its characteristic quantity are preserved by each operation of quantized angle, with them basic pattern 107 is detected.
Then, 252 pairs of pattern boundary value judging parts are counted as basic pattern 107 detected patterns (comprise and append pattern 108, below be commonly referred to as and detect pattern) at basic pattern test section 251.Become boundary value when above at sum, pattern boundary value judging part 252 just is judged as basic pattern 107 and has been detected.Such computing is carried out by counter or adder that digital circuit constitutes.In addition, detected total number of patterns is counted, and with its sum with fixed boundary value reason relatively, be to consider to have interference pattern sometimes and basic pattern 107 together is detected, so it will be removed.
Basic pattern judging part 253 is only extracted basic pattern 107 out from detected pattern, and number goes out the sum of the basic pattern 107 of extraction.The problem of considering that misdeems, sum compare the fixed big occasion of boundary value, just judge that basic pattern 107 exists, extract the information that output to such as the positional information of the basic pattern 107 of extracting out and angle out handling part 211.In detected pattern, contain and append pattern 108.Therefore, from detected pattern, extract the occasion of basic pattern 107 out, can carry out with appending the difference of pattern 108 based on basic pattern 107.That is, in detected pattern, the pattern that will not put 108d is judged as basic pattern 107 and gets final product.
Append pattern judging part 254 from detected pattern, only extract out and append pattern 108, and number goes out the sum that appends pattern 108 of extraction.The problem of considering that misdeems, sum compare the fixed big occasion of boundary value, just judge that appending pattern 108 exists, extract the information that output to such as the positional information of appending pattern 108 of extracting out and angle out handling part 211.Same as described above, in detected pattern, will have the pattern of a 108d to be judged as to append pattern 108 to get final product.
Information is extracted handling part 211 out after the result of receiving pattern detection portion 210, and the information that is embedded in the original image 101 is extracted out.
In foundation basic pattern 107 and append the occasion that information is imbedded in the arrangement of pattern 108, information extract out handling part 211 with basic field 104 by each fixed arrangement (for example 2 row 4 are listed as (Fig. 8)) cut apart, then, which pattern that contains basic pattern 107 in the per unit field in arranging and append in the pattern 108 is judged.In case the pattern in the constituent parts field in arranging is determined, just the value that will predesignate is distributed to basic pattern 107 and appends pattern 108 that (for example the former is for " 0 ", the latter is " 1 "), and will extract out as the information of imbedding by the information that this arrangement is expressed.
On the other hand, with basic pattern 107 with append the relative angle of pattern 108 and imbed the occasion of information, information is extracted out according to angle.Also all basic pattern 107 and the angle of appending pattern 108 can be added up, and be got its peak value.In the occasion that the difference of the operation of the angle of two patterns is intactly imbedded as numerical value, can enough following formula extract informations.
V＝|x-y|Mod360/60
At this, v is the value of imbedding; X is the angle of basic pattern 107; Y is the angle of appending pattern 108.In addition, Mod represents residue.At this, quantization is that the angles with per 60 degree are unit.
For example, the angle of basic pattern 107 is " 0 ", and the angle of appending pattern 108 is the occasion of 60 degree.Bring following formula into, then just can in the hope of:
v＝|0-60|Mod360/60＝1
" 1 " this value is just as imbedding to such an extent that value is drawn out of.
Information is extracted handling part 211 out and will be extracted out to such an extent that information outputs to system controller 204.System controller 204 is controlled the action of image processing apparatus 10 according to the information of extracting out.For example, can not recognize the image of reading, prevent the duplicating of classified papers thus by the image of exporting as the duplicating result is become.In addition, the information of extraction is represented at operating portion 205, the user is carried out certain notice.Owing to can represent the information that 2bit is above at least, so can carry out various control.
Below, be illustrated with regard to other component part of image processing apparatus.At the image processing apparatus 10 of Figure 16, it is the example of being carried out by the hardware that digital circuit constitutes that the extraction of information is handled.Different therewith, in the image processing apparatus of following explanation, be installed in the hardware software and carry out.In explanation,,, its explanation is also omitted with identical symbolic representation with image processing apparatus 10 same sections shown in Figure 16.
Figure 18 is the block diagram of the hardware resource of surface image processing unit.
In image processing apparatus shown in Figure 180, be provided with pattern detection portion 210, information extraction handling part 211, coloured image transformation component 212 and selector 213 etc. at image processing part 202; In the ROM204b of system controller 204, store enforcement and extract the computer programs of handling (image processing program) out from the information of original image 101.As other execution mode, be in system controller 204, to be provided with by CPU204a, the microcomputer that ROM204b and RAM204c constitute, among the consecutive HDD214 image processing program is being housed with bus with this microcomputer, this image processing program also can be written into RAM204c and be carried out when image processing apparatus starts.No matter be which kind of form, extract out to handle all from the information of original image 101 and carry out according to computer programs by system controller 204.On this meaning, RAM204c or HDD214 work as the recording medium of memory image handling procedure (computer programs).
Below, further the information processor to other is illustrated.In above-mentioned image processing apparatus shown in Figure 180, the image processing apparatus of being implemented to handle by the computer programs that are installed in the hardware resource has been described.This image processing apparatus as illustrated to the image processing apparatus of Figure 16, can be a digital copier for example.
But, from the processing that original image is extracted information out, be not leave no choice but in above-mentioned image processing apparatus, carry out can not, utilize general electronic computer (PC (personal electric computer)) also to be fine.In this occasion, computer programs itself have nothing different basically with the computer programs of using in image processing apparatus shown in Figure 180.
Figure 19 is the block diagram of expression as the hardware resource of the PC of image processing apparatus.Have as the PC301 of image processing apparatus each several part is carried out central controlled CPU204a.Storage read only memory ROM 204b such as BIOS and, various data carried out storing with rewriteeing and be connected on the CPU204a formation microcomputer by bus (bus) 302 as the RAM204c of the service area of CPU204a etc.Further, the also having on bus of being continued, computer programs (image processing program) be installed in wherein HDD214 and, read CD-ROM drive 303 Hes that are stored in the data among the CD-ROM303, the interface 305 that communicates with printer portion etc.
As an example, the computer programs (image processing program) that are installed among the HDD214 originally were stored among the CD-ROM303, and CPU204a allows CD-ROM drive 304 read these computer programs and it is installed among the HDD214.Thus, be stored in this computer programs one starting among the HDD214, these computer programs are copied to the RAM204c from HDD214, and performed by CPU204a and RAM204c.In this sense, RAM204c, HDD214 or CD-ROM303 have just played the medium of store electrons computer program (image processing program).
But, as the medium of store electrons computer program, be not only CD-ROM303, can also use various forms of medium, as the various disks of various CDs such as DVD, various photomagneto disk, floppy disk etc., semiconductor memory or the like.In addition, also can from networks such as internet, computer programs be downloaded, and among the storage HDD214.In this occasion, the memory of the store electrons computer program in the server of the side of delivering letters has also just become medium of the present invention.In addition, program can operate on the fixed 0S, in this occasion, the part of following various processing just can allow OS do.The application program of all right conduct formation of program word processor etc. or the program group's of OS a part.
In PC (personal electric computer) 301, according to the processing that is installed in the computer programs implementation among the HDD214, shown in the flow chart described as follows.But PC301 does not have scanner.Therefore, will be that media comes input image data from scanner with network or cable.
In the image processing apparatus of above explanation, the system controller 204 of Figure 16 or Figure 18 and CPU204A, the ROM204b of Figure 19, RAM204c and determined property device, authentication information acquisition device, control device are corresponding.In addition, image is done to grow up to be a useful person 203 corresponding with printing equipment.HDD214 is corresponding with storage device.
Below, to the processing of implementing by above-mentioned image processing apparatus, describe with reference to the flow chart of Figure 20.The flowcharting of Figure 20 original image is read in and the flow process of handling according to the information in original image, imbedded by the user who authenticated.In following explanation, abbreviate S101 step as S101, other are also.
At S101, obtain the authentication information of the authentication information that contains attribute of user and obtain processing.At this, so-called authentication information is the information in order to judge whether this user can carry out copying image with original image (classified papers).This authentication information, comprise user for example post, user unique identification information, expression affiliated unit and affiliated company information, carry out the identifying information of the machine that image forms etc.In addition, so-called copying image, for example comprise duplicate, send a fax, the copying image of scanning etc. is handled and image is kept at processing in the file (folder).
The authentication information of S101 is handled, for example can be given card of each user, reads by blocking with the card reader that is contained in image processing apparatus in advance, contains the processing of the authentication information of this attribute of user.Perhaps, the user is registered in image processing apparatus in advance, when this user uses this image processing apparatus, go into machine earlier and handle, contain this attribute of user authentication information therefrom and handle.
In S102, carry out classified papers information and extract processing out.Whether this processing is to be the processing of the information extraction of classified papers image about this original image.The information that the information extraction handling part 211 of image processing apparatus will be imbedded in the original image is extracted out, and system controller 204 is obtained the information of this extraction.
In S103, carry out judging from the information of extracting out whether original image is the determined property processing of classified papers image (attribute of paper file).Processing among this S103 is corresponding to the determined property operation.As not being classified papers, then can not produce the problem of improper duplicating.In S104, the copying image of duplicating etc. is handled.After S104 was over, the processing of Figure 20 finished.
On the other hand, judge that at S103 original image is the occasion of classified papers, will in following S105, obtain the security classification of the information of expression security classification in the information of carrying out from original image, being imbedded (imbedding the information of paper file) and extract processing out.At this, the security classification of S105 is extracted out and is handled, and also can be based on the information of imbedding of original image, obtains the information of representing security classification and the processing of carrying out from external device (ED) (server).So-called security classification is meant secret degree, for example " top secret, secret " etc.
With this security classification and authentication information, in following S106, carry out the authentication information judgment processing.Figure 21 is the table that this authentication information of expression is judged example.The table that Figure 21 is represented, its transverse axis are the security classifications of " top-secret, secret, externally secret ", and the longitudinal axis is " general manager, minister, office worker, external staff ", the expression authentication information.In addition, " zero, * " in, " zero " presentation video can duplicate, and " * " presentation video can not duplicate.
So, be the occasion of " top secret " in security classification, can duplicating image have only " general manager ", security classification is the occasion of " secret outside the company ", that can carry out copying image is " general manager, minister, office worker ".So, in S106, use user's authentication information, judge whether original image can regenerate.In addition, S106 is corresponding to the authentication determination operation.
Moreover, in the authentication determination of S106 is handled, can be to make authentication not only be confined to the user that file reads in, also can will carry out the authentication of the image processing system of image formation.For example, the occasion of facsimile machine, what can prefer is, the information (number of facsimile machine) of the machine of the image information that the output facsimile machine is received authenticates.Allow the authentication information of the attribute of user that the paper file reads in based on comprising, in S106, when be judged as copying image can not occasion, will forbid the processing that the original image that reads in is faxed and delivered letters, perhaps allow machine carry out image become black image and the processing of exporting.In addition, also can carry out the authentication of user and machine simultaneously.For example, in the occasion of facsimile machine, what can prefer is, to the user of the image information output wanting facsimile machine is received authenticate and, the authentication of the information of the machine of collecting mail (Fax number).
In addition, the occasion of scanner can prefer, the information of the machine that the original image that scanning is read in sends, and the information (attribute of e-mail address and file) that this original image carries out the recipient authenticated.
More than Shuo Ming judgement is carried out at S106.As judging that in S106 image can duplicate, because the problem of improper duplicating can not take place, so in S104, the copying image of duplicating etc. is handled.Be over as S104, the processing of Figure 20 ends.
On the other hand, as in S106, judgement mustn't be carried out the occasion of copying image, and in the S107 corresponding to the storage operation, the view data of original image is stored in the storage device of hard disk, floppy disk, NV-RAM etc.Then, at S108, from original image, extract the original image relevant information out.
With Figure 22 the example of original image relevant information is illustrated.Original image relevant information shown in Figure 22 is to be made of file number, writing date, the number of the employed machine of writing, the writer of file.Wherein, the number of file is in order to discern original image, and for example, each original image all has ID.The writing date is the date that original image is write as.The number of writing used machine is in order to discern the machine of making original image, for example used serial number that machine had of authoring file.The authoring person makes the user in order to discern file, for example Xie Zuo user's ID.
Above-mentioned original image relevant information is drawn out of at S108, this original image relevant information, with the corresponding S109 of paper file-related information storage operation in be stored in the storage device.Then, at S110, improper improper duplicating of reading the paper file that mustn't duplicate is carried out the processing of " clearly expression ".In the clearly expression of this improper duplicating is handled, for example can make this image processing apparatus send the notice of " improper duplicating has taken place " to system management people's PC, perhaps, carry out representing that in the operation of this image processing apparatus portion 205 (with reference to Figure 16) expresses the processing of the printed words of " improper duplicating ", perhaps, for example also can carry out from the give the alarm processing of sound etc. of image processing apparatus.Can also in informing E-mail, enclose the view data of storage.In next S111, allow machine carry out original image become and to recognize the fringe that reads and export.S111 one is over, and the processing of Figure 20 has also just been finished.S111 exports operation to corresponding with image.
Processing by above explanation, not only can prevent wrongful duplicating, the system management people can also know that what original image can be who will carry out improper duplicating by the improper duplicating of people, so, just can produce the inhibition effect that further prevents improper duplicating.
Claims (10)
1. image processing apparatus, it is extracted this information out from imbed the paper file of deciding information to some extent, and according to the information of this extraction and user's indication carry out fixed processing, it is characterized in that this image processing apparatus comprises:
The determined property device is used for judging from the information of described extraction the attribute of described paper file;
The authentication information acquisition device is used to obtain the authentication information that contains described attribute of user;
Control device is used for carrying out the described processing of deciding according to the attribute and the described authentication information of described paper file;
The information of wherein said extraction comprises basic pattern and appends pattern, and the basic pattern that comprises in the information of described determined property device according to described extraction and append the arrangement and the relative angle of pattern is judged the attribute of described paper file;
The attribute of the described paper file of judging from the information of described extraction contains the security classification of whether forbidding described fixed processing corresponding to described authentication information;
Described control device can carry out described fixed processing according to described authentication information and described security classification to described paper file with regard to whether and judge.
2. image processing apparatus according to claim 1 is characterized in that it has the storage device that the image that forms on the described paper file is stored.
3. image processing apparatus according to claim 1, it is characterized in that being the occasion of forbidding described paper file is carried out described fixed processing when described control device according to the property determine of described authentication information and described paper file, described control device is exported the image setting of described paper file for not recognizing the image of reading.
4. image processing apparatus according to claim 2 is characterized in that the described paper file-related information that information contains relevant described paper fileinfo of deciding, and described control device is stored in described paper file-related information in the described storage device.
5. according to any one the described image processing apparatus among the claim 1-4, it is characterized in that judging and forbid described paper file is carried out described occasion of deciding processing when described control device, carry out fixed notice.
6. the image processing method of an image processing apparatus is wherein decided from imbedding the paper file of information this information to be extracted out, and according to the information of this extraction and user's indication carry out fixed processing, it is characterized in that this image processing method comprises,
Determined property operation, this operation are judged the attribute of described paper file from the information of described extraction;
Authentication information is obtained operation, and this operation obtains the authentication information that contains described attribute of user;
The control operation, this operation is carried out the fixed processing of institute according to the attribute and the described authentication information of described paper file;
The information of wherein said extraction comprises basic pattern and appends pattern, and the basic pattern that comprises in the information of described determined property operation according to described extraction and append the arrangement and the relative angle of pattern is judged the attribute of described paper file;
The attribute of the described paper file of judging from the information of described extraction contains the security classification of whether forbidding described fixed processing corresponding to described authentication information;
Described control device can carry out described fixed processing according to described authentication information and described security classification to described paper file with regard to whether and judge.
7. image processing method according to claim 6 is characterized in that described image processing apparatus also has the device that the image that forms on the described paper file is stored.
8. image processing method according to claim 6, it is characterized in that, when the occasion of forbidding described paper file is carried out described fixed processing according to the property determine of described authentication information and described paper file, in described control operation, the image setting of described paper file is exported for not recognizing the image of reading.
9. image processing method according to claim 7 is characterized in that the described paper file-related information that information contains the information of relevant described paper file of deciding, and in described control operation, described paper file-related information is stored in the described storage device.
10. according to each the described image processing method among the claim 6-9, it is characterized in that when in described control operation, judge and forbid described paper file is carried out described occasion of deciding processing, carry out fixed notice.
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