JP3165686B2 - Image processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to an image processing apparatus, and more particularly to an image processing apparatus having a forgery prevention function and a control method for the image processing apparatus. 2. Description of the Related Art Conventionally, for example, an image copying apparatus such as a copying machine reads an image on a document placed on a document table in accordance with an instruction of an operator and reproduces the image as faithfully as possible on the document. Was the challenge. [Problems to be Solved by the Invention] By the way, in recent years, a digital color copying apparatus which combines a color image apparatus using a CCD or the like and a digital color printer such as a laser beam printer or an inkjet printer has been developed. It has become possible to reproduce and record a color original very faithfully including the color tone and the like. For this reason, there has been a risk that paper sheets and documents that are prohibited from being copied, such as banknotes and securities, may be easily forged. However, in the conventional copying apparatus, means for prohibiting copying of bills, securities, important documents, etc. is not added. Even more importantly, for example, important documents, bills, etc. are individually registered as copy prohibiting manuscripts on the user side. However, no device has been provided which can inhibit copying or change the copying operation. For this reason, for example, in the case where banknotes or securities that must be prohibited from being copied have a new design, or when the format of important documents has been changed, the inconvenience of having to change the ROM in which the prohibited manuscript has been registered must be changed. Had occurred. On the other hand, if copy-inhibited documents can be individually registered as described above, and if the registration can be easily updated or deleted, this can be used to copy documents that should be prohibited from being copied. The inconvenience of being able to do so arises. That is, for example, the document data is updated without the knowledge of the person who registered the copy-inhibited document, and the document is not determined as a copy-inhibited document. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and it is possible to surely prohibit copying of an object for which copying is to be prohibited for any operator, and furthermore, an image whose copy is to be prohibited differently depending on the operator. It is another object of the present invention to provide an image processing apparatus capable of prohibiting copying of the image.

[Means for Solving the Problems]

In order to solve the above problems, an image processing apparatus according to the present invention
Determines whether the scanned original image is a specific image.
An image processing apparatus for reading image data of a document.
Reading means for reading and a reference data for determination representing the specific image.
Data that is stored in advance and cannot be rewritten
Storage means, and image data read by the reading means.
And the reference data for determination stored in the first storage means.
Comparing means for comparing the data and the comparison means.
To prohibit duplication of an image corresponding to the image data.
Output means for outputting a signal,
The reference data for judgment different from the reference data for judgment
Registration mode for selecting the mode to be registered using reading means
Selecting means, and when the registration mode is selected, the reading
Of the predetermined area of the original for the reference data read by the
Create reference data for new judgment based on image
Creating means, and a determination base created by the creating means.
Rewritable second storage means for storing quasi-data,
Wherein the comparing means includes the image data and the first
Comparison with the judgment reference data stored in the storage means
The image data is stored in the second storage means.
And comparing it with the reference data for determination. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
Will be described. <First Embodiment> FIG. 1 shows a basic configuration of a first embodiment of the present invention. Figure
In FIG. 1, which is a plane, A indicates an arbitrary area of the original image.
This is an area specifying means to specify. B is a finger by the area designating means A
Scans the original image data in the specified area, and
Data change means for changing data. C is data change
Using the pattern data converted by the means B as reference data
This is storage means for storing in response to a registration instruction. D is normal
The pattern obtained from the data conversion means B during image formation
And the reference data stored in the storage means C.
Is a comparison means for comparing. E is the comparison result of the comparison means D
Is a control unit that stops the image forming process in response to the request. FIG. 2 shows a digital color copying machine according to an embodiment of the present invention.
1 shows a schematic internal configuration of the device. The apparatus of this embodiment is shown in FIG.
Digital color image reader at the top
(Hereinafter referred to as a color reader) 1 and a digital
Color image printing device (hereinafter referred to as color printer)
2). This color reader 1 is a color separation device.
With a stage and a photoelectric conversion element such as a CCD (charge coupled device)
Scans the color image information of the original for each color,
Convert to a digital image signal. Also color printer
2 is to color image in accordance with the digital image signal.
Reproduced for each color and digital dot form on the recording paper
Electrophotographic laser beam that is transferred and recorded multiple times
It is a color printer. First, an outline of the color printer 1 will be described. 3 is an original, 4 is a platen glass on which the original 3 is placed, 5
From the document scanned and exposed by the halogen exposure lamp 10
The reflected light image of the light is collected and the image is
Rod array lens for input, 7 is sensor output signal
5, 6, 7, and 10 are original scanning units.
Exposure scan is performed in the direction of arrow A1 as a unit
You. Color color read line by line while scanning for exposure
The resolution image signal is determined by the sensor output signal amplification circuit 7
After being amplified to a voltage, the video processing
The signal is input to the nit 12, where the signal is processed. Signal line 501 is
This is a coaxial cable that guarantees faithful transmission of the signal.
502 supplies a drive pulse for the 1 × full color sensor 6
Signal lines, and the necessary driving pulses are supplied to the video processing unit.
All are generated within the nit 12. 8 and 9 are for white level correction and black level correction of the image signal.
White plate and black plate.
By irradiating with the pump 10, the signal of the predetermined density
Signal level can be obtained from the 1 × full-color sensor 6.
This signal level is adjusted for white level correction and black level of the video signal.
Used for bell correction. 13 is a control unit with a micro computer
It is a controller (controller). This control unit
Display 13 on the operation panel 20 via a bus 508,
-Input control and control of the video processing unit 12
The position of the original scanning unit 11 is determined by the position sensors S1 and S2.
Position is detected through signal means 509 and 510, and furthermore, signal line 503 is detected.
For moving the original scanning unit 11 through the
Stepping motor drive that drives the ping motor 14 in pulses
The control circuit 15 controls the exposure lamp lamp through the signal line 504.
ON / OFF control of the halogen exposure lamp 10 by the driver, light
Control the amount of data, and digitize it via the signal line (bus) 505.
Color reader for user 16 and internal keys, display section control, etc.
All control of the unit 1 is performed. At the time of document exposure scanning, the document scanning unit 11 described above
The read color image signal is supplied to an amplifier circuit 7 and a signal line.
The video processing unit 12 is input to the
Various processings performed in the tut 12, the interface
The data is sent to the color printer 2 via the circuit 56. Next, an outline of the color printer 2 will be described. Reference numeral 711 denotes a scanner, which is an image signal from the color reader 1.
Laser output unit (not shown) that converts the signal into an optical signal, polyhedron
(For example, an octahedron) polygon mirror 712, this mirror 712
Motor (not shown) and f / θ lens (image forming)
Lens) 713 and the like. 714 changes the optical path of laser light
The reflecting mirror 715 is a photosensitive drum. Laser output section
Is emitted from the polygon mirror 712.
Through the lens 713 and the mirror 714
Surface is scanned linearly (raster scan)
A corresponding latent image is formed. Also, 717 is a primary charger, 718 is an overall exposure lamp, 723
Is a cleaner section for collecting the residual toner not transferred,
724 is a pre-transfer charger, and these members are the photosensitive drum 7
It is located around 15. 726 is formed on the surface of the photosensitive drum 715 by laser exposure
A developing unit for developing the electrostatic latent image. 731
Y, 731M, 731C, and 731Bk are in direct contact with the photosensitive drum 715 for direct development.
Developing sleeve, 730Y, 730M, 730C, 730Bk are spare toner
The toner hopper that keeps the
Doing skew, these sleeves 731Y ~ 731B
k, by toner popper 730Y ~ 730Bk and screw
A developing unit 726 is constituted, and these members are
It is arranged around the rotation axis P of the unit. For example,
When forming a yellow toner image,
Performs low-toner development to form a magenta toner image
At this time, the developer unit 726 is rotated around the axis P in the figure.
To the position in contact with the photoconductor 715
The sleeve 731M is provided. Cyan and black development
It works similarly. Reference numeral 716 denotes a toner image formed on the photosensitive drum 715.
This is a transfer drum for transferring to paper. 719 is the transfer drum 716
Actuator plate for detecting the moving position of
The proximity of this actuator plate 719 causes the transfer
Detects that the ram 716 has moved to the home position
Position sensor, 725 is transfer drum cleaner, 727
Is a paper holding roller, 728 is a static eliminator, and 729 is a transfer charger.
is there. These members 719, 720, 725, 727, 729
It is arranged around the roller 716. On the other hand, 735 and 736 are paper cassettes for storing paper (sheets).
Cuts, 737, 738 feed paper from cassettes 735, 736
Paper feed rollers, 739, 740, 741
This is a timing roller for taking a picture. These components735
The paper fed and conveyed via the
The transfer drum 71 is guided while the tip is held by the gripper.
It winds around 6 and moves to the image forming process. 550 is a drum rotation motor, which is
The transfer drum 716 is rotated synchronously. 750 completes image formation process
Later, the peeling claw that removes the paper from the transfer drum 716, 742
A sailing belt that transports the removed paper, 743 is transported
Image fixing unit that fixes paper conveyed by belt 742
It is. The image fixing unit 743 includes a pair of heat pressure rollers 744 and
745. FIG. 3 shows details of the operation panel 20 of the color copying apparatus shown in FIG.
Shown in detail. In FIG. 3, reference numeral 400 designates the start of copying.
Copy start key (copy button), 401 in standard mode
Reset key to return, 402 for registration mode or service
Enter key for setting the service mode, 404
Numeric keys for inputting numerical values such as a fixed number, and 403
Is to clear the numeric value or to stop during continuous copying.
It is a stop key. 405 sets each mode by finger press
LCD and touch panel for displaying the settings and status of printer 2
It is a chip panel. 407 is a sensor for specifying sensor movement in the movement mode.
Key 408 is used to set the original size and original position during copying.
The document recognition key 406, which is automatically detected, is
Project key to specify the mode, 409 is the last copy
-Recall key for restoring settings, 410 is reserved
To store or recall the programmed settings for each mode.
Memory keys (M1, M2, M3, M4) for issuing, and 411
This is a registration key for each memory. FIG. 4 shows a digital device used as an example of a device for designating an area.
1 shows the appearance of Tizer 16. In FIG. 4, 422 is zoom.
Key, 423 is a move key, 424 is an area designation key, 425 is
Color create key, 426 enlarge copy key, 427 fit
422, 423, 424, 425, 42
6,427 is an entry key for setting each mode.
You. Reference numeral 420 designates an arbitrary area on the document or
Or a coordinate detection plate for setting the magnification (coordinate position detection
Board). 421 designates the coordinates on the coordinate detection plate 420
This is a point pen. These keys 422-427 and the seat
The key information and coordinate input information from the marker detection plate 420 are shown in FIG.
Through the bus 505, the CPU (controller) in the control unit 13
Control unit 13 by ikro computer
In a random access memory (RAM). To specify the processing area on the document, the user first
Press the a designation key 424. When this key 424 is pressed,
Enter the designated mode. In this area designation mode,
One or more areas can be specified.
Trimming mode and masking for each specified area
Sking mode, image separation mode, and copy prohibition registration
Any of the four modes can be set. This
The former three modes are directly related to the present invention.
Therefore, the detailed description is omitted, and the present invention is not described here.
The "copy prohibition registration mode" which is the central part of
I do. In this copy prohibition registration mode, the point
Read the image inside the specified area, pattern it and
Is stored in the RAM (31 in FIG. 6) in the control unit 13.
Let The data stored in this RAM becomes the reference pattern.
When copying, the same pattern as the reference pattern exists.
Is controlled so that it cannot be copied
You. The specific operation procedure in the copy prohibition registration mode
This will be described with reference to FIG. First, press the area designation key 424 on the digitizer 16
And the LCD 405 with panel keys on the operation panel 20
The display changes to screen P300, and the message on this screen is displayed.
Therefore, the user can use the coordinate detection plate (editor) of the digitizer 16.
-) Place the original on 420, and use the point pen 421 to
A) Specify and input. When two points in the area are pressed, the display on the liquid crystal display
The screen will change to screen P310 and follow the message on this screen.
If the user decides that the designated area is good, it will be displayed on screen P310.
Press the touch key (OK key) a. This touchy key a
When pressed, the display on the LCD 405 changes to screen P320.
You. Next, the user displays this designated area on screen P320.
Trimming or masking, image separation,
And one process of copy prohibition registration, and
Press the key. At this time, if the user's specification is
The display contents of the device 405 return to the screen P300, and specify the next area.
And proceed. By repeating such operations, all copying
When the area to be prohibited registration has been specified, use it next.
Person places the original on the platen glass (copying table) 4 in FIG.
When the copy button 400 is pressed, the copy-protected original is
Reference pattern is registered in the RAM in the control unit 13.
Is recorded. FIG. 6 is a circuit configuration of the control unit 13 in FIG.
Here is an example. In FIG. 6, reference numeral 22 denotes a control as shown in FIG.
CPU that performs control operations according to the present invention in accordance with
Arithmetic processing unit), 23 preliminarily describes its control procedures, constants, etc.
ROM (lead-on memory) stored, and 24 and 25 are CPU
RAM used as a work area for 22 (random access memory
Mori). 26 is a key for driving the halogen exposure lamp 10.
I / O that sends control signals from CPU 22 to light lamp driver 21
(I / O port), 29 is data between digitizer 16
This is a serial interface (I / F) that exchanges data. Two
7 is an interrupt controller for interrupts, 28 is a timer circuit
is there. 30 is for binarizing the data in the specified area
Patterning processing circuit for patterning, 31 is copy prohibited registration
In the mode, the data patterned by the patterning
Data is stored as reference data (reference pattern data)
RAM for registration, 33 is a pre-scan in the normal copy mode.
Data that has been patterned by the patterning
32 is a RAM for comparison, and 32 is a patterned original data in RAM 33.
Data and the reference data in RAM31, and compare the data
This is a comparison circuit for determining the relationship. Output from the comparison circuit 32
Control signal with correlation is input to the CPU 22 through the signal line 34
Is done. These components 22-33, video processing unit
12 and the operation panel 20 are connected to each other via a bus 508.
Have been. FIG. 7 shows the operation of the CPU 22 in the control unit 13.
A control procedure of the above-described copy prohibition registration will be described. First, in response to the pressing of the copy button 401, in step S100
Turn on the halogen exposure lamp 10 and in the next step S101
Perform black level correction processing and correct white level in step S102.
Perform processing. Detailed descriptions of these processes are described in the summary of the present invention.
It is omitted because it is not. Next, proceed to step S103, and first finger the digitizer 16
Enter the reading mode of the specified area and enter the video processing of FIG.
Image data that has been black and white corrected by the
It is sent to the patterning processing circuit 30 of FIG.
You. In the patterning processing circuit 30, for example, binarization processing is performed.
The data after this processing is used as the reference data in RA in FIG.
Stored in M31. Then, in step S104, halogen exposure is performed.
The light lamp 10 is turned off, and the main registration process ends. Now, a specific example of the area to be registered by the user will be described.
And, for example, as shown in FIG. If the copy of the document with the mark is prohibited, the area
8 (A) on the digitizer 16
Is set using the point pen 421, and this area (A) is
What is necessary is just to take in the above-mentioned RAM31 as reference data. During normal document copying, the original image is
Sends the image data to the patterning processing circuit 30, and
Is performed, and stored in the RAM 33. Next, the patterned original data stored in the RAM 33 is compared with the original data.
To the comparison circuit 32 and the memory already stored in the RAM 31.
It is compared with reference data (reference pattern data). this
For comparison, for example, the value L of the following equation (1) is used. Here, i and j are pixel numbers, n and m are the number of pixels of the reference pattern data, p and q are shift numbers, and X _ij Is the reference pattern data at (i, j)
Value, X _ij Is the patterned original data value at (i, j)
It is. When the comparison value L is L> L _th (2) (However, L _th Is the threshold), the patterned original data is the same as the reference pattern
The comparison circuit 32 determines that there is a pattern, and prohibits copying.
The control signal (copy prohibition control signal)
Send to 2. CPU 22 receiving the copy prohibition control signal is in the middle of a copy operation.
The display shown in FIG. 9 is displayed on the display 405 of the operation panel 20.
Display a message to inform the user that copying is prohibited.
Let On the other hand, when the comparison value L obtained by the calculation of the above equation (1) is L ≦ L _th In the case of (3), the patterned original data includes the reference pattern.
The comparison circuit 32 determines that there is no similar pattern,
Since no copy prohibition control signal is sent from CPU 32 to CPU 22,
Reference numeral 22 performs a normal copying operation. As described above, according to the present embodiment, the image to prevent forgery
Use images, such as banknotes and securities, for normal copying operations
The image input means.
It becomes extremely easy to register and change an image to be prevented. Second Embodiment FIG. 10 shows a circuit configuration of a second embodiment of the present invention.
The control unit 13 of this embodiment is a copy prohibition registration mode.
The reference pattern data (pattern data)
Data) and the rotation data of the ROM35 reference data.
FIG. 6 shows a rotation processing circuit 36
This is almost the same as the embodiment. In the embodiment shown in FIG.
Standard data for banknotes and securities that should be deleted cannot be deleted
Write it in the functional ROM 35. This pattern data
The converted reference data is expressed, for example, by the following equation (4).
This is ternary data. Where Y _ij Is the transformed data at (i, j), Y ' _ij Is the original read data at (i, j), Y ₀ , Y ₁ , Y _Two Is a constant. Since these data are written in ROM35,
Renewal, cancellation, etc. are not possible. Therefore, banknotes and securities
The data is converted into the data of the above equation (4) by the patterning processing circuit 30.
In other words, if you write it in ROM 35, you can prevent forgery
Becomes possible. During normal copying, the original image data is
Is sent to the patterning processing circuit 30, and the same three-value
Is performed and stored in the RAM 33. Next, the patterned original data stored in the RAM 33 is compared with the original data.
The signal is sent to the comparison circuit 32. At the same time, the
The reference data is sent to the rotation angle processing circuit 36,
In the angle processing circuit 36, data rotated by the angle θ is created.
And sent to the comparison circuit 32, where
Is compared to This rotation processing is performed, for example, by the following equation (5).
Calculation. The comparison in the comparison circuit 32 is performed by, for example,
The value L of (6) is used. Here, i and j are pixel numbers, m and n are the number of pixels of the reference pattern data, p and q are shift numbers, and y ′ _ij Is the reference pattern of (i, j) when rotated by angle θ
Data, Y _ij Is the patterned manuscript data at (i, j)
is there. When the comparison value L is L> L _th In the case of (7), the pattern original data is the same as the reference pattern.
Is determined to exist, and a control signal for prohibiting copying is issued.
The signal is transmitted to the CPU 22 through the signal line. This copy prohibition control
Upon receiving the signal, the CPU 22 stops the copying operation and operates the operation panel.
A message like the one shown in Fig. 11 is displayed on the
Notify the user. On the other hand, the comparison value L obtained by the calculation of the above equation (6) is L ≦ L _th In the case of, the angle θ is changed by θ + △ θ (where △ θ is a small angle)
And the comparison value L is calculated again by the same processing procedure as described above.
And performs the same control as described above. Thus, the above equation (5) in the rotation angle processing circuit 30 is obtained.
When the angle θ reaches 360 °, the comparison value L becomes L ≦ L _th If it is still
If there is no pattern similar to the pattern data, the comparison circuit 32
It makes a determination and causes the CPU 22 to perform a normal copying operation. As described above, according to the first and second embodiments,
If the user wants to copy a part of the original
And specify it according to the registration instructions.
The data in the specified area is read and
After converting to turn data, the data is
And register it in the storage unit, and then perform normal image formation.
Of the scanned original obtained from the data conversion means
Comparison data and the reference data in the storage means with the comparison means
And a pattern similar to the reference data exists in the original
The image forming process is stopped by the control means.
Is automatically performed, so the user must prohibit copying.
Hope Easily and reliably prevent duplication of important documents such as documents
be able to. In this embodiment, the above storage means is canceled.
By making the memory impossible, the factory
Register the reference pattern of bills, securities, etc. in its memory,
It is also possible to prevent counterfeiting of bills and securities. Note that, in the above-described embodiment, the image is
Image formation was stopped, but the image forming operation was continued.
And make the contents of the image forming process different from that of general manuscripts.
May be. That is, for example, in the case of
Can output an image in a single black color. Another
May be output in monochrome. In addition, some areas of the image
Or output solid black for all areas
Is also good. These processes correspond to the output of the comparing means D in FIG.
First, the control means E shown in FIG.
Bk (black) data is always set to 1 or M (magenta)
Data), Y (yellow), C (cyan)
Can be realized. <Third Embodiment> An image processing apparatus according to a third embodiment has the same configuration as the above-described embodiment.
Means to control the updating, addition, and deletion of reference data
It is provided. FIG. 12 shows the overall configuration of the image processing apparatus of the present embodiment.
It is a block diagram. In FIG. 12, A is an image for inputting image data.
Data input means B is reference data for storing reference data
Storage means for storing incoming data and said reference data
Means for comparing the reference data stored by means B
And D is a control signal according to the result of the comparing means C.
Control means D and E for outputting all the copy inhibition signals
Reference data changing means that can add / change / delete data
The image data input by the input means is converted to pattern data.
G is a data conversion means for changing the predetermined area of the input image to
This is an area specifying means to specify. FIG. 2 is a schematic internal configuration of the image processing apparatus of this embodiment.
The operation panel 20 is the same as in FIG.
Is omitted. FIG. 13 shows a digital device used as an example of a device for designating an area.
1 shows the appearance of Tizer 16. In FIG. 4, 422 is zoom.
Key, 423 is a move key, 424 is an area designation key, 425 is
Color create key, 426 enlarge copy key, 427 fit
428 is a registered image change key.
Each of the keys 422, 423, 424, 425, 426, 427, 428
This is an entry key for setting the mode. Also, 42
0 specifies an arbitrary area on the document, or
This is a coordinate detection plate (coordinate position detection plate) for setting.
421 is a point paper for designating coordinates on the coordinate detection plate 420.
It is. These keys 422 to 428 and the coordinate detection plate 420
Key information and coordinate input information are transmitted via the bus 505 in FIG.
CPU (microcontroller) in the control unit 13
RAM in the control unit 13
Random access memory). Of these entry keys, the former six modes are
Since it is not directly related to the present invention, a detailed description thereof will be omitted.
You. Next, the operation of this embodiment will be described focusing on the reference data changing means E.
This will be described with reference to FIGS. 1 to 11. First, the operation will be described. No copying as described above
If you try to copy a registered document, etc.
The message shown in is issued. In this case, copy
The data in the area where the document was
The reference data stored in the storage means B and the comparison means C
Are determined to be the same, and as a result,
The copy prohibition signal is output from the prohibition means D.
You. The reference data stored in the reference data storage means B
Fig. 14 shows the procedure for adding, changing and canceling data. The user changes the reference data already registered
If desired, the registered image change switch 428 is pressed.
In this case, the LCD touch panel of the operation panel 20
The ray 405 is transformed into a message as shown in FIG.
Will be updated. Then, with the data read and input by the data input means A,
A certain code, such as “3356294”,
Input from the figure) and the inside of the control unit 13 described later
Compared with the encryption previously stored in RAM24, 25
If they are not equal, the message shown in FIG.
Be changed. Since this encryption changes the registered image,
This is equivalent to the ID code of an individual who can use it. Here, even after a certain period of time,
When there is no message, a message as shown in FIG.
Displayed on spray 405. Next, the code entered from the numeric keypad 404 and
If the stored encryption is equal, the display 405
Is changed to the message shown in FIG. 14 (d). here
If you want to change or add reference data,
Press the key, and if you want to cancel, press the cancel key 451
I do. When the change registration key 450 is pressed, a message shown in FIG. 14 is displayed.
(E) is displayed. In FIG. 14 (e), ▲ [1] ▼ is the inverted table in this embodiment.
Is displayed, and only the reference data of the memory area No. 1 is stored and registered.
It is shown that it is. Here key ▲ [1] ▼
Pressing deletes the reference data of NO.1 and
The input message (f) of the reference data to be displayed is displayed.
According to the message on this screen, the user
Place the original on the coordinate detection plate (editor) 420 of
An area (area) is designated and input with the pen 421. Fig. 14
The display changes to the message shown in (g). When two points in the area are pressed, the menu shown in FIG.
The display changes to the message display, and by pressing the OK key,
Registration of reference data based on input of a new copy prohibited image
Be started. The registration of the reference data is performed in the first operation described above.
This is performed in the same manner as in the embodiment. In this way, the new
The reference data is set to No. 1 in the reference data storage means of FIG. 12B.
Is registered. Also, when the cancel key 451 in FIG.
Displays the message shown in FIG. 14 (i). The key of NO.1 is highlighted as above,
Reference data is stored and registered only in the NO.1 memory area.
Which indicates that. When this ▲ [1] ▼ key is pressed, it is shown in Fig. 14 (k).
Message is displayed, and press the OK key.
Of reference data is canceled. By pressing the all clear key 452, the user presses the key (FIG. 14 (j)).
The message shown in is displayed, and by pressing the OK key
All reference data is deleted. Next, the storage unit B, the comparison unit C, and the copy prohibition of the present embodiment
Control unit including means D and reference data changing means E
The structure and operation of the kit will be described with reference to FIG. Figure 15 shows
2 shows a circuit configuration of the control unit 13 shown in FIG.
You. In FIG. 15, 22 is a CPU (Central Processing Unit), 23
Is a ROM that stores the control procedures and constants in advance.
24 and 25 are working areas for CPU22
RAM (random access memory) used. 26
Is a dimming lamp that drives the halogen exposure lamp 10.
I / O (input / output port) that sends a control signal from CPU 22 to
C), 29 exchange data with digitizer 16
It is a serial interface (I / F). 27 is for interrupt
Is an interrupt controller, and 28 is a timer circuit. 30 is de
Data entered as data encryption
Data input processing circuit, 31 for registration to store reference data
RAM, 33 if the user wants to change the reference data
A reference data changing means for controlling the RAM 31;
31 coded reference data and coded video
Data ratio that compares signals and determines the correlation between the two data
This is a comparison circuit which is the comparison means C. Output from the comparison circuit 32
Control signal with correlation is prohibited from copying via signal line 34
It is input to the CPU 22, which is means D. These components 22
~ 23, video processing unit 12 and operation panel 20
Are connected via a bus 508. Next, the reference data is added /
The change / cancellation will be described below. In order to use the reference data changing means 33, the registration
The image change key 428 is pressed. FIG. 14 (a)
Message is displayed, and the system enters a state of waiting for an encryption input.
Hereinafter, description will be made with reference to FIG. After that, a certain code is input from the numeric keypad 404 (FIG. 3).
(S102), and this is already recorded in the reference data changing means 33.
It is determined whether it is equal to the stored encryption (S103),
If they are not equal, the process proceeds to S104, and the message shown in FIG.
Is displayed on the display 405, and the operation ends. one
On the other hand, if the entered code and the stored
14 The message shown in Fig. (D) is displayed on the display 405.
The state becomes a state of waiting for selection of change or cancellation S105. Key input is
When the key is changed, it is determined whether the key is changed or deleted (S106)
If the key is changed, the key shown in FIG.
A message appears on the display 405 (S107),
It is in a state of waiting for power. Here, only the ▲ [1] ▼ key is inverted because N
Reference data has already been registered in the memory area of O.1
Nothing is registered in the memory area of No.2 ~ 16
Is not shown. If NO.1 is specified here,
The reference data registered in the
Start registration of reference data. NO.2 to NO.16 are fingers
Immediately register new reference data if specified
to go into. Registration work S108, S109, S110 already performed
Since it is described in Example 1, it is omitted here. Thus, new reference data is registered in the RAM 31. Ma
The message shown in Fig. 14 (d) is displayed on the display.
If the key input during the erase is erased, proceed to S111,
14 The message shown in FIG. Here, the key ▲ [1] ▼ is highlighted as described above.
The meaning is like. In the case where the entered key is all erased, FIG.
If the message shown is NO.1, then the message shown in FIG.
Message is displayed, and here it is
Determined in S112, if it is the end key, end without deleting anything
If the key is OK, the process proceeds to step S113 and the
Is based on a command from the reference data changing means 33.
Deleted. Fourth Embodiment Next, an image having a configuration obtained by partially changing the third embodiment.
The forming apparatus will be described with reference to FIGS. 17 and 18.
You. In FIG. 17, the control unit 13 is the reference.
RAM 31 for storing data and operation card reader 41
The other configuration is almost the same as that of FIG. By pressing the registered image change key 428 in FIG.
Then, the message shown in FIG.
Will be displayed. FIG. 20 is a drawing showing the appearance of the operation unit.
3, 401 to 411 are the same as in FIG. 430 is the base
This is an IC card that stores preliminary data.
Shows the state inserted in. The user can use the IC card No. 20 in which the reference data is stored.
Figure 430 is inserted into the operation card reader 41, and this IC card is
When recognized as a legitimate IC card, the reference data changing means 33
Means that all the reference data stored in the IC card
Transfer to RAM31. This reference data is, for example,
Is stored in each IC card
Just by registering the reference data according to the situation, the IC car
Standard data can be easily changed by strictly managing the code
Cannot be deleted or erased. Documents prohibited from copying based on reference data registered in RAM31
The determination of whether or not is the same as in the previous embodiment,
Will not be described. IC cards other than regular IC cards
Fig. 17 (b) shows the display when the
Displayed at 405 and registering new reference data
Can not. In this embodiment, the reference data is stored in the IC card.
Used as a medium, but instead of the encryption of the third embodiment
And a card that allows change, addition, and deletion of reference data
You may use it. Fig. 18 shows the flow chart in this case.
Shown in The difference from the flow chart shown in FIG.
Step S102 and the other steps are shown in FIG.
Therefore, the description is omitted here. As described above, according to the third and fourth embodiments, multiple
Easy to update / add / delete reference data for judging copying prohibition
Use cryptography or reference data to prevent
The reference data is stored in the device by the card in which the data is stored.
Register, update / add /
By allowing deletion, you can easily add reference data
Update / delete is disabled. Therefore copy inexhaustibly
The number of prohibited documents increases, and conversely, copying is prohibited easily.
It has a special effect that it cannot be erased. In the above embodiment, a liquid crystal touch panel is used.
And performed operations such as numbering for changing the reference image.
However, normal key input may be used. Also, the reference data can be rewritten multiple times as described above.
And store some reference data in ROM.
You may make it impossible to change. Especially in the case of banknotes,
If you can add only, you can prevent forgery against old banknotes
Can be stopped. Note that in the above-described embodiment, the digital
User, but by inputting coordinates using the numeric keypad 404
May be specified. The pattern data to be stored is not binary data.
The data may be converted into multi-valued data. Storage means
Is not limited to RAM, but is a magnetic recording medium such as floppy disk.
It may be a body. In addition, when comparing the reference data with the input image data,
Therefore, not only when both are the same,
According to the similarity (for example, what percentage of all pixels match)
The image processing may be changed. Judgment that the input image is an image that should prevent certain counterfeiting
The control by the control means in the case where the
Cut, stop, mono color output of image, solid black output,
Special processing such as mirror image, color conversion, etc.
Anything that can prevent faithful reproduction of the image, such as discarding
Good. The means of permitting modification of the reference data to prevent forgery is ID
Card, (eg, optical card, magnetic card, IC card)
And reference data such as encryption input means (for example, numeric keypad)
It is a means that can specify what can be rewritten.
Just do it. In the above-described embodiment, the pre-processing for image output is performed.
Color laser beam printer as an example
However, the printer is not limited to this.
Printer, color ink jet printer, color printer
Various output devices such as a linter can be used. In addition, image input means is not limited to CCD sensors
Input signal from a device (for example, SV camera or computer).
It may be an interface for power. [Effects of the Invention] As described above, according to the present invention, a document image to be read
Is an image processing device that determines whether or not a
Reading means for reading image data of a document,
A pre-stored reference data for judgment representing an image
First storage means which cannot be replaced, and said reading means
To the image data read by the first storage means
Comparing means for comparing the stored reference data for determination;
According to the comparison by the comparing means,
Output means for outputting a signal prohibiting the duplication of the duplicated image,
What is the judgment reference data stored in the first storage means?
Register another determination reference data using the reading means.
Registration mode selection means for selecting a mode, and the registration mode
Is selected by the reading means when the password is selected.
Based on the image in the specified area of the data document,
Creating means for creating fixed reference data; and the creating means
To store the reference data for judgment created by
Second comparing means, wherein the comparing means is
The image data and the determination data stored in the first storage means.
Compare the image data with the reference data.
The reference data for determination stored in the second storage means is compared with the reference data for determination.
By comparing, the copy prohibited
In addition to the reference data for judgment,
You can easily register the reference data for
The usability of the device is improved. In addition, copying is prohibited using the reading unit used for normal copying.
Can register new reference data for
Prohibition of copying various originals with a cheap configuration without using
Can be achieved. Furthermore, when registering new reference data for judgment,
The judgment base is determined using the area designating member used during normal copying.
You can specify the area to be used as preparatory data.
Prohibition of copying various originals with an inexpensive configuration without using a device
Stoppage can be achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a first embodiment of the present invention, FIG. 2 is a schematic diagram showing an overall schematic internal configuration of the first embodiment of the present invention, and FIG. 2 is a plan view showing an example of the appearance of the operation panel of FIG. 2, FIG. 4 is a plan view showing an example of the appearance of the digitizer of FIG. 2, and FIG. 5 is a copy prohibition registration in the first embodiment of the present invention. FIG. 6 is a block diagram showing a circuit configuration of the control unit shown in FIG. 2, and FIG. 7 is a block diagram showing copy inhibition in the embodiment of the present invention. FIG. 8 is a flowchart showing a control procedure of registration, FIG. 8 is a plan view showing an example of a document to be subjected to copy prohibition registration and its registration area, and FIG. FIG. 10 is a plan view showing a display example on a display screen. FIG. 10 is a control unit according to a second embodiment of the present invention. FIG. 11 is a block diagram showing a circuit configuration of the embodiment, FIG. 11 is a plan view showing a display example on a display screen when a copy-inhibited document is determined in the second embodiment of the present invention, and FIG. 13 is a block diagram showing a basic configuration of the third embodiment, FIG. 13 is a plan view showing an example of the appearance of a digitizer according to the third embodiment of the present invention, and FIGS. 14 (a) to (k) are registration figures. FIG. 15 is a diagram showing a display display when an image is changed / erased, FIG. 15 is a block diagram showing a circuit configuration of a control unit, FIG. 16 is a flowchart of a registered image change mode, FIGS. 17 (a) and (b) ) Is a diagram showing a display display according to the fourth embodiment of the present invention. FIG. 18 is a block diagram showing a circuit configuration of a control unit according to the fourth embodiment of the present invention. 20 is a flowchart of the registered image change mode when using FIG. 3 is a plan view showing an example of the appearance of an operation panel having a reader. B: Reference data storage means C: Comparison means D: Control means E: Reference data change means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 1/40-1/409 H04N 1/46 H04N 1/60

Claims (4)

(57) [Claims] 1. An image processing apparatus for determining whether an original image to be read is a specific image, comprising: reading means for reading image data of the original; and reference data for determination indicating the specific image stored in advance. A first storage unit that cannot be rewritten; an image data read by the reading unit;
A comparison unit that compares the reference data for determination stored in the storage unit; an output unit that outputs a signal prohibiting duplication of an image corresponding to the image data in accordance with the comparison by the comparison unit; Registration mode selection means for selecting a mode for registering the reference data for judgment different from the reference data for judgment stored in the first storage means using the reading means; Creating means for creating new reference data for determination based on an image of a predetermined area of the document for reference data read by the means; and a rewritable second memory for storing the reference data for determination created by the creating means. Wherein the comparing means compares the image data with the reference data for determination stored in the first storing means, and compares the image data with the previous reference data. The image processing apparatus characterized by comparing the stored determination reference data in the second storage means. 2. The image processing apparatus according to claim 1, further comprising permission means for permitting rewriting of reference data in said second storage means when said registration mode is selected. 3. An area designating means for designating a desired area of a document for copying, wherein the creating means uses the area designating means to convert a designated area of the reference data document into the predetermined area. The image processing apparatus according to claim 1, wherein the image processing apparatus handles the image processing. 4. A reading means for reading image data of an original, a first storage means which stores reference data for determination in advance and which cannot be rewritten, and an image data read by said reading means and said determination data Comparison means for comparing reference data; output means for outputting a signal prohibiting duplication of an image corresponding to the image data in accordance with the comparison by the comparison means; and determination means stored in the first storage means. A selection unit for selecting a mode for registering new determination reference data separately from the reference data, and a conversion unit for converting image data read by the reading unit. When the registration mode is selected by the selection unit,
Based on the image of the predetermined area of the document for reference data read by the reading means, a creating step of creating new reference data for the determination by the conversion means, the determination reference data created in the creating step A storage step of storing in a rewritable second storage means; and a comparison in which the comparison means compares image data read by the reading means with reference data for determination stored in the first and second storage means. And a control method for the image processing apparatus.