JP3761264B2 - Forgery prevention method, computer-readable storage medium storing program for causing computer to execute the method, and forgery prevention system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a method for preventing forgery of banknotes, securities, copyrighted works, etc.,Computer-readable storage medium storing program for causing computer to execute the methodAnd anti-counterfeiting systemMore specifically, when reading image data from a document and recording it in an image file, inputting the image file, outputting the image data recorded in the image file, and generating a copy of the document In addition, forgery prevention methods for preventing forgery of manuscripts forbidden forgery,Computer-readable storage medium storing program for causing computer to execute the methodAnd anti-counterfeiting systemAbout.
[0002]
[Prior art]
  In recent years, image processing technology and image forming technology have improved, and it has become possible to perform image formation so finely that copied banknotes copied by a color copying machine and actual banknotes cannot be easily distinguished. For this reason, a device has been developed that detects special manuscripts that are prohibited from copying banknotes and securities, and prohibits illegal copying in the case of special manuscripts. An image forming apparatus such as a copying machine has also been proposed.
[0003]
  Some of the special manuscripts include metal fibers inserted to indicate that they are special manuscripts themselves. In order to discriminate such a special manuscript from a normal manuscript, it is only necessary to detect metal fibers that have been inserted into the special manuscript. For this reason, as an image forming apparatus having a function of judging a special document in which metal fibers are inserted, for example, a microwave is irradiated to the document, and a transmitted wave or a reflected wave of the irradiated microwave is detected and detected. A signal sensor that inputs a detection sensor such as a microwave sensor that outputs a signal, and a detection signal output from the detection sensor, and determines whether or not metal fibers are squeezed into the document using this detection signal Have been proposed.
[0004]
  In the image forming apparatus, the microwave sensor is generally provided in an image reading unit including an imaging CCD or the like, reciprocates together with the image reading unit on a document placed on a document table, and a metal fiber is moved in the forward path. Irradiation of microwaves and detection of reflected waves are performed. When the signal determination unit inputs the detection signal of the reflected wave output from the microwave sensor, compares the level of the input detection signal with a preset threshold value, and if the level of the detection signal exceeds the threshold value, On the other hand, it is determined that the metal fiber is scavenged in the document. On the other hand, if the level of the detection signal does not exceed the threshold value, it is determined that the metal fiber is not scrubbed in the document. As a result, when it is determined that the metal fiber is inserted into the document, it is determined that the document is a special document such as a banknote or a securities with the metal fiber inserted therein.
[0005]
  If it is determined that the original is a special original, processing such as stopping the reading of the image from the original or performing special image processing on the read image is performed, and the image is transferred to a predetermined recording paper. To record.
[0006]
[Problems to be solved by the invention]
  However, in the above conventional technology, it is possible to effectively prevent counterfeiting of special manuscripts such as banknotes and securities with metal fibers inserted, but for example, it is effective to copy works without permission. There was a problem that could not be prevented.
[0007]
  Further, in the image forming apparatus such as a copying machine that can simultaneously read an image and output an image as in the conventional technique described above, forgery of special manuscripts such as banknotes and securities can be prevented. However, by exchanging the image file in which the image data is recorded, when reading the image and outputting the image on different devices, or when not reading the image and outputting the image at the same time, A means for effectively preventing forgery of special manuscripts has not yet been established. That is, conventionally, a method for effectively preventing forgery executed by reading image data of a special manuscript such as a bill with a general scanner and outputting the read image data with a printer has not been established. It was.
[0008]
  Furthermore, when distributing a copyrighted work or the like as digital data, a means for effectively preventing the act of printing and distributing the copyrighted work without permission has not yet been established.
[0009]
  The present invention has been made in view of the above, and an object of the present invention is to effectively prevent counterfeiting of a manuscript for which counterfeiting of banknotes, securities, copyrighted works, and the like is prohibited.
[0010]
[Means for Solving the Problems]
  In order to achieve the above object, the forgery prevention method according to claim 1 reads image data from a document, records it in an image file, inputs the image file, and outputs the image data recorded in the image file. In a forgery prevention method for preventing forgery of a manuscript forbidden forgery when generating a copy of the manuscript, a first step of inputting the type of the manuscript, and the manuscript in the first step When there is no input of the document type, the second step of determining the document type, the third step of reading image data from the document, the document type and the image data are recorded in the image file. A predetermined step from a plurality of image data output methods corresponding to preset document types based on the fourth step and inputting the image file and based on the document type recorded in the image file. A fifth step of selecting an output method, on the basis of the fifth output method selected in step, a sixth step of executing the output processing of the image data, is intended to include.
[0011]
  Further, the forgery prevention method according to claim 2 is the forgery prevention method according to claim 1, wherein the fourth step records the image file when the document type and the image data are recorded in the image file. The type of the original is recorded in a predetermined field of a common header that constitutes.
[0012]
  A forgery prevention method according to claim 3 is the forgery prevention method according to claim 1 or 2, wherein the types of documents recorded in the image file in the fourth step are general documents, banknotes, securities, It is a confidential document or work.
[0013]
  The forgery prevention method according to claim 4 is the forgery prevention method according to claim 1, wherein the output method of the image data selected in the fifth step includes prohibition of output, change of hue, change of density, color The reproduction range is limited, the resolution is reduced, mosaic processing is performed, or a predetermined mark is added.
[0014]
  AlsoThe computer-readable storage medium according to claim 5 stores a program for causing a computer to execute the method according to any one of claims 1 to 4.
[0015]
Furthermore, the forgery prevention system according to claim 6 prevents forgery of a document for which forgery is prohibited, and the forgery prevention system includes an image reading device and an image output device. An input operation means, a determination means for determining the type of the original when the operation means does not input the type of the original, an image reading means for reading image data from the original, and the determination means. Recording means for recording the type of the original and the image data read by the image reading means in the image file, and the image output device includes an input means for inputting the image file, A method for outputting a plurality of image data in accordance with a preset type of document based on the type of document recorded in the image file input by the input means Selects a predetermined output method from, based on the selected output method, and an output means for performing output processing of the image data, in which with a.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of an anti-counterfeit method according to the present invention, a computer-readable storage medium storing a program for causing the computer to execute the method, and an anti-counterfeit system will be described in detail with reference to the drawings.
[0017]
  FIG. 1 is a block diagram of the image reading apparatus according to the present embodiment. The image reading apparatus shown in FIG. 1 includes an operation unit 271 for inputting various modes and document types, displaying messages, and the like, and special manuscripts such as banknotes and securities for which counterfeiting is prohibited. A special document determination unit 272 that determines the type of the special document, an image reading unit 273 that reads image data from the document, and the image data read by the image reading unit 273 and the type of document. An image recording unit 274 that records in the file 276 and a control unit 275 that controls the above-described units are included. The image reading apparatus shown in FIG. 1 constitutes, for example, a scanner or a copying machine.
[0018]
  The operation unit 271 is configured to be able to input the type of document read by the image reading device. When reading image data from a manuscript, the user inputs the type of manuscript such as banknotes, securities, tickets, confidential documents, copyrighted works, and the like from the operation unit 271.
[0019]
  When the type of document is not input from the operation unit 271, the special document determination unit 272 scans the document by irradiating the microwave, detects the reflected wave of the irradiated microwave, and detects the level of the detected reflected wave. Based on the above, it is determined whether or not the manuscript is a special manuscript such as a bill / securities with a metal fiber inserted, and it is detected in what form the metal fiber is inserted into the manuscript. It determines the type of special manuscript such as the type of banknote. The special document determination unit 272 includes, for example, a microwave sensor (not shown) that irradiates and scans a document with a microwave, detects a reflected wave, and outputs a detection signal of the reflected wave, and a microwave sensor. The output detection signal is used to determine whether or not the document is a special document, and when the document is a special document, a determination unit (not shown) that determines the type of the document is configured.
[0020]
  The image recording unit 274 inputs the image data read by the image reading unit 273 and the type of document input from the operation unit 271 or the type of document determined by the special document determination unit 272. Are recorded in an image file 276 having the structure described in (1).
[0021]
  FIG. 2 is an explanatory diagram showing the structure of the image file 276. As shown in FIG. 2, the image file 276 includes a common header 277 and image data 278. In the specific field 279 of the common header 277, the type of document input from the operation unit 271 or the type of document determined by the special document determination unit 272 is recorded.
[0022]
  There are six types of manuscripts recorded in the specific field 279: user-defined manuscripts such as general manuscripts, banknotes, securities, tickets and the like, literary works and in-house confidential documents. However, the type of manuscript is not limited to these.
[0023]
  Of the above six types of manuscripts, at least a manuscript defined by a user such as a copyrighted work and an in-house confidential document is set manually, and the user sets the type of manuscript with the operation unit 271. As shown in FIG. 2, in the present embodiment, these two originals are set manually, but the other four kinds of originals may be set by the operation unit 271. However, when the user has set the document as a general document, the special document determination unit 272 needs to determine the type of document in order to prevent forgery of a document for which forgery is prohibited.
[0024]
  Although the microwave is used to determine the type of document in the special document determination unit 272, the type of document is determined by using infrared instead of the microwave or detecting the magnetic level of the document. You may decide to do it. Also, instead of using electromagnetic waves such as microwaves, the type of document may be determined by analyzing image data read from the document. For example, when the scanned image data is analyzed and a characteristic pattern is included in the banknote, such as an imprint, it can be determined as a banknote, and when a confidential mark or the like is included. Can be determined to be an in-house confidential document.
[0025]
  Next, the operation of the image reading apparatus according to the present embodiment will be described in more detail. FIG. 3 is a flowchart showing the operation of the image reading apparatus of the present embodiment.
[0026]
  First, the user inputs from the operation unit 271 the type of document to be scanned (corresponding to the first step of claim 1). However, whether or not to input the document type is left to the user's selection. The image reading apparatus according to the present embodiment is configured to be able to set a literary work and an in-house confidential document. Here, it is assumed that a setting is made that the manuscript is a literary work. The input document type is stored in a predetermined storage area.
[0027]
  Thereafter, when an instruction to read an image is given by the user, the control unit 275 determines whether or not there is an input of a document type from the operation unit 271 (S301). Here, since the document is set to be a copyrighted work, the control unit 275 confirms this setting and proceeds to step S303.
[0028]
  The image reading unit 273 reads the image data from the document under the control of the control unit 275 (S303: corresponds to the third step of claim 1).
[0029]
  Subsequently, the image recording unit 274 records the image data read by the image reading unit 273 and the document type (literal work) input from the operation unit 271 in the image file 276 and ends the image reading process ( S304: Corresponds to the fourth step of claim 1). Here, since the document is set as a copyrighted work, any one of “300 to 399” indicating the copyrighted work is recorded in the specific field 279 of the common header 277 shown in FIG. If the manuscript is set as an in-house confidential document by the operation unit 271, “1000 to” is recorded in the specific field 279.
[0030]
  The image file 276 is output to, for example, a floppy disk or a hard disk, and is output to another computer, a printer, or the like via a network.
[0031]
  On the other hand, when the user does not input the type of the document to be read from the operation unit 271 and instructs to read the image, the control unit 275 causes the special document determination unit 272 to execute the document type determination process ( S302: corresponds to the second step of claim 1).
[0032]
  The special manuscript determination unit 272 irradiates and scans the manuscript with microwaves, detects a reflected wave of the irradiated microwave, and determines whether the manuscript is a special manuscript such as a bill or a securities according to the level of the reflected wave. When it is determined that the original is a special original, the type of special original is determined by detecting in what form the metal fiber is inserted into the original. The determined document type is stored in a predetermined storage area.
[0033]
  The control unit 275 detects that the document type determination process by the special document determination unit 272 is completed, and causes the image reading unit 273 to execute a process of reading image data from the document (S303).
[0034]
  The image recording unit 274 records the image data read by the image reading unit 273 and the type of document determined by the special document determination unit 272 in the image file 276, and ends the image reading process (S304). For example, when the special document determination unit 272 determines that the document is a bill, any one of “1 to 99” indicating the bill is recorded in the specific field 279 of the common header 277 shown in FIG. The If it is determined that the document is a general document, “0” is recorded. If it is determined that the document is a securities, “100 to 199” is recorded, and it is further determined that the document is a ticket or the like. If "200" is recorded, "200 to 299" is recorded.
[0035]
  Next, the image output apparatus of this embodiment will be described. FIG. 4 is a block diagram of the image output apparatus according to the present embodiment. The image output apparatus shown in FIG. 4 includes an input unit 283 that inputs an image file 276, a special document determination unit 281 that determines the type of document based on a specific field 279 in the image file 276, and a special document determination unit 281. A predetermined output method is selected from preset image data output methods based on the type of document determined in step 1, and an image output unit 282 that executes output processing, various mode settings, and message display are performed. And an operation unit 284 for controlling the above-described units. Note that the image output apparatus shown in FIG. 4 constitutes a printer, for example.
[0036]
  The operation of the image output apparatus according to this embodiment will be described below. FIG. 5 is a flowchart showing the operation of the image output apparatus of the present embodiment.
[0037]
  First, the input unit 283 reads the image file 276 from a floppy disk, a hard disk or the like under the control of the control unit 285, or inputs it via a network, and reads the common header 277 and the image data 278 (S501: Claim 1). Corresponds to the fifth step).
[0038]
  Subsequently, the special document determination unit 281 refers to the data indicating the type of document recorded in the specific field 279 of the common header 277, and determines whether the data is “0” indicating a general document (S502). : Corresponds to the fifth step of claim 1). If the data recorded in the specific field 279 is not “0” in step S502, the special document determination unit 281 outputs information indicating the type of document. The special document determination unit 281 can display the determined document type on the operation unit 284.
[0039]
  The image output unit 282 receives information indicating the type of document output from the special document determination unit 281 and image data, and executes image data output processing (S503: fifth and sixth claims). Corresponds to the process).
[0040]
  For example, the image output unit 282 has a table in which output method information corresponding to the type of document is stored in advance, and determines the output method by referring to this table according to the type of document. Image data output methods include output inhibition, hue change, density change, color reproduction range limitation, resolution reduction, mosaic processing, addition of predetermined marks, and the like.
[0041]
  Therefore, the image output unit 282 prohibits the output of image data, changes the color of the output image, or marks “copy” in order to prevent counterfeiting of banknotes, securities, and copyrighted works. In addition, printing is performed, printing is performed on a predetermined recording sheet, and the output process is terminated. When the image output unit 282 selects prohibition of image data output, it can be displayed on the operation unit 284.
[0042]
  On the other hand, in step S502, when the data recorded in the specific field 279 is “0” indicating a general document, the special document determination unit 281 outputs information indicating that the document is a general document.
[0043]
  The image output unit 282 receives information indicating that the document output from the special document determination unit 281 is a general document and image data, performs normal image output processing, and outputs the image data to a predetermined recording sheet. Recording is performed, and the image output process ends (S504).
[0044]
  Thus, according to the forgery prevention method executed by the image reading apparatus and the image output apparatus of the present embodiment, the image reading apparatus records the type of document in the image file, and the image output apparatus is recorded in the image file. Since the image output process based on the type of the original is executed, it is possible to effectively prevent forgery of copyrighted works and in-house confidential documents. For example, in the case of distributing a copyrighted work or an in-house confidential document as digital data, it is possible to prevent the copyrighted work from being copied and distributed without permission.
[0045]
  In addition, since the image reading device records the type of document in the image file and the image output device executes image output processing based on the type of document recorded in the image file, the image reading processing and the image output processing are performed separately. Even when the apparatus is used or when the image reading process and the image output process are not performed at the same time, it is possible to prevent forgery of a manuscript forbidden forgery such as banknotes and securities.
[0046]
  In the above-described embodiment, the description has been made on the assumption that the image reading apparatus and the image output apparatus are separate apparatuses. However, the image reading process and the image output process are not separate apparatuses. It may be a device capable of executing both.
[0047]
  The forgery prevention method described above can be programmed to be executed by a computer, and can be stored in a computer-readable storage medium such as a floppy disk, a hard disk, a CD-ROM, or a DVD.
[0048]
【The invention's effect】
  As described above, according to the forgery prevention method of the present invention (Claim 1), when the document type is input in the first step of inputting the document type and in the first step, the document type is not input. A second step of determining the type, a third step of reading image data from the original, a fourth step of recording the type and image data of the original in the image file, and inputting the image file into the image file A fifth step of selecting a predetermined output method from a plurality of image data output methods corresponding to a preset type of document based on the type of document that has been recorded, and an output selected in the fifth step And a sixth step of executing image data output processing based on the method, so that it is possible to effectively prevent forgery of copyrighted works and in-house confidential documents, and image reading processing and image output processing Or when using different devices Even when not performed a reading processing and image output processing simultaneously, it is possible to prevent a bill, a counterfeit document forgery is prohibited, such as securities. That is, an image file in which image data of a manuscript forbidden forgery is recorded is exchanged by recording it on a floppy disk, for example, and is exchanged via a network, and the recorded image data is printed on a predetermined recording sheet. Counterfeiting can be prevented.
[0049]
  According to the forgery prevention method of the present invention (Claim 2), in the forgery prevention method according to Claim 1, the fourth step records the image when the document type and the image data are recorded in the image file. Since the document type is recorded in a predetermined field of the common header constituting the file, it is possible to easily determine the document type when outputting image data, and the image of the document for which forgery is prohibited To prevent image files with recorded data from being recorded on a floppy disk, for example, and exchanged over a network, and printing the recorded image data on a predetermined recording sheet to prevent counterfeiting Can do.
[0050]
  According to the forgery prevention method (claim 3) of the present invention, in the forgery prevention method according to claim 1 or 2, the type of the document recorded in the image file in the fourth step is a general document, banknote. , Securities, confidential documents, or copyrighted works, so image files that record image data of manuscripts forbidden forgery are recorded and exchanged on a floppy disk, for example, or exchanged and recorded via a network. It is possible to prevent forgery by printing the image data on a predetermined recording sheet.
[0051]
  According to the forgery prevention method of the present invention (Claim 4), in the forgery prevention method according to Claim 1, the image data output method selected in the fifth step includes output prohibition, hue change, Since the density is changed, the color reproduction range is limited, the resolution is reduced, the mosaic process is performed, or a predetermined mark is added, it is possible to prevent forgery of a document for which forgery is prohibited.
[0052]
  AlsoAccording to the computer-readable storage medium (Claim 5), since the program for causing the computer to execute the method according to any one of Claims 1 to 4 is stored, the computer is caused to execute the program. In addition to effectively preventing counterfeiting of copyrighted works and in-house confidential documents, image reading processing and image output processing are performed using different devices, and image reading processing and image output processing are not performed simultaneously. Even in this case, it is possible to prevent counterfeiting of manuscripts forbidden forgery of banknotes and securities. That is, an image file in which image data of a manuscript forbidden forgery is recorded is exchanged by recording it on a floppy disk, for example, and is exchanged via a network, and the recorded image data is printed on a predetermined recording sheet. Counterfeiting can be prevented.
[0053]
Further, according to the forgery prevention system of the present invention (Claim 6), the image reading device includes an operation unit that inputs the type of the original, and the input type of the original when the operation unit does not input the type of the original. Determination means for determining the type of document, image reading means for reading image data from the document, the type of document determined by the determination means, and the image data read by the image reading means Recording means for recording in a file, wherein the image output device is preliminarily configured based on input means for inputting the image file and the type of the document recorded in the image file input by the input means. A predetermined output method is selected from a plurality of image data output methods corresponding to the set document type, and the image data output process is executed based on the selected output method. Output means that can effectively prevent counterfeiting of copyrighted works and in-house confidential documents, as well as when image reading processing and image output processing are performed using separate devices, Even when the processing and the image output processing are not performed at the same time, it is possible to prevent forgery of a manuscript for which counterfeiting of banknotes, securities, etc. is prohibited. That is, an image file in which image data of a manuscript forbidden forgery is recorded and exchanged, for example, on a floppy disk or the like, is exchanged via a network, and the recorded image data is printed on a predetermined recording sheet. Counterfeiting can be prevented.
[Brief description of the drawings]
FIG. 1 is a block configuration diagram of an image reading apparatus according to an embodiment.
FIG. 2 is an explanatory diagram showing a structure of an image file in the image reading apparatus according to the present embodiment.
FIG. 3 is a flowchart showing the operation of the image reading apparatus of the present embodiment.
FIG. 4 is a block configuration diagram of an image output apparatus according to the present embodiment.
FIG. 5 is a flowchart showing the operation of the image output apparatus of the present embodiment.
[Explanation of symbols]
271,284 Operation unit
272, 281 Special Document Determination Unit
273 Image reading unit
274 Image recording unit
275,285 control unit
276 image files
277 Common header
278 Image data
279 Specific fields
282 Image output unit
283 input section

Claims (6)

Forgery is prohibited when reading image data from a document and recording it in an image file, inputting the image file, outputting the image data recorded in the image file, and generating a copy of the document In a forgery prevention method for preventing forgery of a manuscript,
A first step of inputting the type of the original;
A second step of determining the type of the original when there is no input of the type of the original in the first step;
A third step of reading image data from the original;
A fourth step of recording the document type and the image data in the image file;
The image file is input, and a predetermined output method is selected from a plurality of image data output methods according to a preset document type based on the document type recorded in the image file. Process,
And a sixth step of executing the output processing of the image data based on the output method selected in the fifth step.   In the fourth step, when the document type and the image data are recorded in the image file, the document type is recorded in a predetermined field of a common header constituting the image file. The forgery prevention method according to claim 1.   The forgery prevention method according to claim 1 or 2, wherein the type of document recorded in the image file in the fourth step is a general document, banknote, securities, confidential document, or copyrighted work.   The image data output method selected in the fifth step is output prohibition, hue change, density change, color reproduction range limitation, resolution reduction, mosaic processing, or addition of a predetermined mark. The forgery prevention method according to claim 1.   A computer-readable storage medium storing a program for causing a computer to execute the method according to any one of claims 1 to 4.   In a forgery prevention system composed of an image reading device and an image output device for preventing forgery of a forbidden document,
  The image reading device includes:
  An operation means for inputting the type of the original;
  Determination means for determining the type of the original when the operation means does not input the type of the original;
  Image reading means for reading image data from the original;
  A recording unit that records the type of the document determined by the determination unit and the image data read by the image reading unit in the image file;
  The image output device includes:
  An input means for inputting the image file;
  Based on the type of document recorded in the image file input by the input means, a predetermined output method is selected from a plurality of image data output methods according to the type of document set in advance. Output means for executing the output processing of the image data based on the output method.
  Anti-counterfeiting system characterized by

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