JP2013073478A - Seal impression registration program, seal impression registration device and seal impression registration method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seal impression registration program, a seal impression registration device and a seal impression registration method capable of determining whether a seal impression to be registered is a seal impression by a seal which is not suitable as a registered seal impression or by a seal which is suitable as the registered seal impression, and preventing registration of the seal impression by the seal which is not suitable as the registered seal impression, at the time of seal impression registration at a financial institution or the like.SOLUTION: A computer of the seal impression registration device is made to function as: seal impression input means for inputting an impression of a seal put on a medium, read by an image reader, as seal impression image data; seal impression image uniformity determination means for determining whether or not image unevenness of the seal impression image data input by the seal impression input means is under a predetermined level; and seal impression registration means for, when the seal impression image uniformity determination means determines that the image unevenness is not under the predetermined level, registering the seal impression image data input by the seal impression input means as a registered seal impression.

Description

  The present invention relates to an imprint registration program, an imprint registration apparatus, and an imprint registration method for registering an imprint of a customer or the like in a financial institution such as a bank or an administrative institution, and in particular, a so-called stamp imprint that is not suitable for imprint registration. The present invention relates to an imprint registration program, an imprint registration apparatus, and an imprint registration method for registering a so-called three-text or imprint imprint that is suitable for imprint registration.

  Conventionally, as a means for guaranteeing the authenticity of a paper document, an imprint (seal) obtained by stamping a seal stamp has been used. For example, when a customer requests a refund by a check or the like in a bank, the authenticity of the check is confirmed by checking whether or not the stamp imprinted on the check matches the registered seal. In recent years, an imprint collation apparatus using a computer is used for this collation.

  Such an imprint checking device generally registers a registered imprint in a memory such as an electronic file device. For example, when checking a check stamp imprinted on a check with a registered stamp, the registered stamp is called from an electronic file and displayed on the display screen, and a check stamp such as a check automatically conveyed is displayed on an image sensor or the like. Electromagnetically read using a reading means (for example, see Patent Document 1) and displayed on a display screen. A bank clerk or the like compares these displayed seals on the screen or superimposes both seals on the screen and determines the identity of both seals by checking the degree of coincidence. It is also possible to cause the computer to execute the coincidence determination.

  In any case, the seal stamp used for the seal registration is required to form a seal with substantially the same shape every time it is stamped. Therefore, a stamp mark (for example, refer to Patent Documents 2 and 3) is not suitable as a seal stamp used for seal imprint registration. This is because the stamp is deformed when the rubber of the stamp portion is deformed at the time of stamping, or the stamp is changed due to deterioration of the rubber.

  In order to collate the seal, it is necessary to register the seal in advance. For registration of an imprint, for example, an imprint that has been imprinted for registration is read as image data, and the entire imprint is temporarily stored in a secondary storage medium connected to the imprint registration apparatus. After that, the image data saved from the secondary storage medium is read out, an account number for associating with the registered seal imprint, image cutout processing is performed, and the cut imprint is registered in the electronic file device connected to the seal imprinting device. (For example, see Patent Document 4)

Japanese Patent Laid-Open No. 2000-255102 JP 2001-260509 A JP 2001-175241 A JP 9-245170 A

  However, in the above-described seal registration device, whether the seal treated as image data is a seal stamp not suitable as a registration stamp such as a stamp seal, or a seal stamp suitable as a registration stamp such as a three-text or actual seal There is a problem in that it cannot be determined and registration of an imprint that is not suitable as a registered imprint cannot be suppressed.

  The present invention has been made in view of the above-mentioned circumstances, and at the time of registering an imprint at a financial institution or the like, whether the registration target imprint is an imprint that is not suitable as a registered imprint or an imprint by a seal that is suitable as a registered imprint It is an object of the present invention to provide an imprint registration program, an imprint registration apparatus, and an imprint registration method that can determine whether or not an image is registered and suppress registration of an imprint by a seal that is not suitable as a registered seal.

The present invention employs the following configuration in order to solve the above problems.
That is, according to one aspect of the present invention, an imprint registration program according to the present invention is a computer program of an imprint registration apparatus that inputs an imprint of a seal stamped on a medium read by an image reading apparatus as imprint image data. Means for determining whether or not the image unevenness of the imprint image data input by the seal input means is below a predetermined level, and the image unevenness is determined by the predetermined level by the imprint image uniformity determining means. If it is determined that it is not lower than the above, it is an imprint registration program for functioning as an imprint registration means for registering the imprint image data input by the imprint input means as a registered imprint.

  The seal imprint registration program of the present invention further causes the computer to function as a seal frame extraction unit that extracts a seal frame equivalent part using a circular shape detection process from the read seal image data input by the seal input unit, The imprint image uniformity determining means determines whether or not the image unevenness is obtained by determining whether or not the predetermined range of the seal frame corresponding portion extracted by the seal frame extracting means has a certain linearity using a straight line detection process. It is desirable to determine whether or not the predetermined level is exceeded.

  In addition, the seal imprint registration program according to the present invention includes a seal frame extraction unit that extracts a portion corresponding to a seal frame from a read seal image data input by the seal input unit using a circular shape detection process, and the seal input unit. It further functions as a character part extraction unit that extracts a portion other than the seal frame equivalent portion extracted by the seal frame extraction unit from the input read seal image data as a character equivalent portion, and the imprint image uniformity determination unit includes the character part. It is desirable to determine whether or not the image unevenness is below the predetermined level by determining whether or not the character-corresponding portion extracted by the extracting unit has a certain high density using pixel density calculation processing. .

  The imprint registration program of the present invention does not register the imprint image data input by the imprint input unit as a registered imprint when the imprint image uniformity determining unit determines that the image unevenness is lower than the predetermined level. It is desirable to function as warning output means for outputting a warning.

  Further, according to one aspect of the present invention, the imprint registration apparatus according to the present invention includes an imprint input unit that inputs, as imprint image data, an imprint of a seal stamped on a medium read by an image reading device, and the imprint input unit. The imprint image uniformity judgment means for judging whether or not the image unevenness of the seal impression image data inputted by the step is below a predetermined level, and the impression image uniformity judgment means judges that the image unevenness has not fallen below the predetermined level. In this case, the image processing apparatus is characterized by further comprising an imprint registration unit for registering the imprint image data input by the imprint input unit as a registered imprint.

  According to another aspect of the present invention, the seal registration method of the present invention is a seal registration method executed by a computer of the seal registration apparatus, wherein the seal stamp is printed on a medium read by the image reading apparatus. Is input as seal image data, and it is determined whether or not the image unevenness of the input seal image data is below a predetermined level. If it is determined that the image unevenness is not below the predetermined level, the input seal image is input. The data is registered as a registration seal.

  The present invention prevents erroneous registration of a stamp by a seal that is not suitable as a registered seal, such as a stamp, by determining whether the seal is a seal imprint that is not suitable as a registered seal or a seal that is suitable as a registered seal It is possible to improve the security and efficiency of banking operations.

It is a system configuration diagram provided with an imprint registration device to which the present invention is applied. It is a hardware block diagram of the seal | sticker registration apparatus to which this invention is applied. It is a functional block diagram of a seal registration apparatus to which the present invention is applied. It is a figure for demonstrating the linearity of a seal stamp frame equivalent part. It is a figure for demonstrating the level of the pixel density of a character equivalent part. It is a flowchart which shows the flow of the stamp registration process to which this invention is applied. It is a flowchart which shows the flow of the subroutine "seal frame linearity discrimination | determination process" of the seal impression registration process. It is a figure for demonstrating the specific example of linearity discrimination | determination. It is a flowchart which shows the flow of the subroutine "seal stamp character part pixel density discrimination | determination process" of a seal impression registration process. It is a figure for demonstrating the specific example of pixel density discrimination | determination. It is a flowchart which shows the flow of the subroutine "stamp seal comprehensive discrimination | determination process" of an imprint registration process.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The present invention analyzes the characteristics of a stamp imprint that is not suitable for seal imprint registration, and the characteristics of a seal imprint such as a three-sentence stamp or a real seal that is suitable for seal imprint registration. It is characterized by judging whether it exists.

For example, the following features are extracted, and the result of each element is converted into points (weighted) to determine whether or not the stamp is a stamp.
(Characteristic 1) A stamp mark or the like has a linearly formed frame portion of an imprint, particularly the upper, lower, left and right portions of the frame. The three sentence format is not linear.
(Characteristic 2) The stamp mark or the like has little image unevenness in the character portion of the seal impression. The three sentence format has many image unevenness.

Then, the analysis result of each element is converted into points, and if a value greater than a certain value is obtained, it is regarded as a stamp or the like, and seal registration is suppressed. Specifically, predetermined areas on the top, bottom, left and right of the frame portion of the seal impression are analyzed, and if the frame portion is formed with a straight line, a point indicating that it is a stamp mark or the like is added. Also, the image unevenness of the imprint frame portion is analyzed, and if the image unevenness is small, a point indicating a stamp mark or the like is added.
This is based on the fact that a stamp mark or the like has a feature that the pixel density of the seal impression is high, and a three sentence format or the like has a feature that the pixel density of the seal impression is low.

FIG. 1 is a system configuration diagram including an imprint registration apparatus to which the present invention is applied.
In FIG. 1, an imprint registration system 1 includes an imprint registration apparatus 10, an image reading apparatus 20 connected to the imprint registration apparatus 10, and a registered imprint database 30. Here, the seal imprint registration system 1 of the present invention is used, for example, for registration of a registration mark of a financial institution.

  The seal imprint registration apparatus 10 includes functions of a computer such as a workstation, a server, or a personal computer, and executes a seal imprint registration process to which the present invention is applied. Details of the seal registration process will be described later. The image reading device 20 is, for example, an image scanner, optically reads a seal stamp or the like on which a seal is formed by imprinting a seal, and outputs the read image data to the seal registration device 10. The registered seal database 30 is, for example, a hard disk device, and stores image data processed as a registered seal by the seal registration process of the seal registration device 10 in association with an account number or the like.

FIG. 2 is a hardware configuration diagram of a seal registration apparatus to which the present invention is applied.
In FIG. 2, the seal registration apparatus 10 includes a CPU (Central Processing Unit) 11, an input device 12, an output device 13, a ROM (Read Only Memory) 14, a RAM (Random Access Memory) 15, and an interface (I / F) 16. It is connected to the bus 17. The input device 12 inputs various data and signals such as a keyboard, a joystick, a light pen, a mouse, a touch pad, a touch panel, and a trackball. The output device 13 outputs images and other information, for example, various displays such as an LCD (Liquid Cristal Display), a printer, and the like. The ROM 14 stores a control program and table data for controlling and executing each function of the seal registration apparatus 10 as well as a program for executing processing executed in the seal registration apparatus 10. The RAM 15 stores a frame buffer for the output device 13 and some application programs. The interface 16 is a unit for connecting to an external device such as a serial interface such as USB (Universal Serial Bus) or a parallel interface such as Ethernet (registered trademark). The CPU 11 controls these units.

  FIG. 3 is a functional block diagram of a seal registration apparatus to which the present invention is applied. FIG. 4 is a diagram for explaining the linearity of the portion corresponding to the seal frame. FIG. 5 is a diagram for explaining the pixel density of the portion corresponding to characters.

  In FIG. 3, the seal registration apparatus 10 includes an image input unit 101, an imprint extraction unit 102, an imprint output unit 103, a seal frame extraction unit 104, a character part extraction unit 105, an imprint image uniformity determination unit 106, and a warning output unit 107. And an imprint registration unit 108.

  The image input unit 101 inputs image data read by an image scanner or the like to the seal registration apparatus 10. The imprint extraction unit 102 removes image data other than the imprint such as a stamp frame of the seal slip from the image data input by the image input unit 101 using a known imprint extraction process, and extracts image data only of the imprint. To do. The image input unit 101 and the seal imprint extraction unit 102 function as an imprint input unit, so that the seal stamp of the seal stamped on the medium read by the image reading device 20 is input to the seal registration device 10 as seal image data. . The imprint input unit may read image data from which only the imprint is extracted after removing the stamp frame and the like from the memory and input it to the imprint registration apparatus 10.

The seal impression output unit 103 outputs the image data of the seal stamp input by the seal stamp input unit to the output device 13. For example, it is displayed on the screen of the display.
The imprint image uniformity determination unit 106 has image irregularities of the seal frame equivalent portion extracted by the seal frame extraction unit 104 described later and the character equivalent portion extracted by the character portion extraction unit 105 below a predetermined level. Whether the image unevenness is less than or greater than a predetermined level. Usually, a stamp mark which is not suitable as a registered stamp has little image unevenness. On the other hand, a three-sentence or real seal, which is a seal suitable as a registered seal, has more image unevenness than a stamp. There is little image unevenness in the imprint of stamps, etc. The stamps, etc. use a porous stamping material with countless continuous pores that occlude ink, and the ink is uniformly ejected from the pores due to pressure deformation at the time of stamping. Because.

  The imprint registration unit 108 registers a registered imprint database in association with an account number or the like input by the input device 12 when the imprint image uniformity determination unit 106 determines that the image unevenness does not fall below the predetermined level. 30 is registered as a registered seal. That is, when it is determined that the seal image data input by the seal input unit is a seal such as a three sentence format or a real seal that is a seal suitable for a registered seal, it is registered as a registered seal.

  The seal frame extraction unit 104 targets image data that has been read by the image reading device 20 such as a scanner and from which the stamp frame has been removed from read image data that has been stamped on a medium such as a form. Thus, the seal frame equivalent portion is extracted using an outer frame detection process such as a known circular shape detection process. That is, a seal frame equivalent portion is extracted by using an outer frame detection process such as a known circular shape detection process for the scanned seal image data input by the seal impression input unit. The extracted image data corresponding to the seal frame is stored in the RMA 15.

  Then, the imprint image uniformity determination unit 106 reads the image data of the seal frame equivalent portion from the RAM 15 and determines whether or not the predetermined range of the seal frame equivalent portion has a certain linearity using a straight line detection process. to decide. For example, as shown by the broken line in FIG. 4, it may be determined whether or not the predetermined range of the upper, lower, left, and right portions of the seal frame equivalent portion has linearity, and four more oblique portions are added. You may judge about the predetermined range of eight places. It is determined whether or not the image unevenness is below the predetermined level depending on whether or not it has linearity. Here, whether or not it has linearity uses a known algorithm such as an algorithm for performing contour enhancement using a two-dimensional filter and obtaining a straight line by least square approximation, or an algorithm for obtaining a straight line by the Hough transform method. As shown in FIG. 4A, when the predetermined range of the seal frame corresponding portion has a certain linearity, it is determined that the image unevenness is lower than the predetermined level (the image unevenness is small). On the other hand, as shown in FIG. 4B, when the predetermined range of the part corresponding to the seal frame does not have a certain linearity, it is determined that the image unevenness does not fall below the predetermined level (the image unevenness is large). To do.

  The character part extraction unit 105 extracts the remaining part as the character equivalent part by excluding the part corresponding to the seal frame extracted by the seal frame extraction unit 104 from the read seal image data input by the seal impression input unit. The extracted image data corresponding to the character is stored in the RMA 15.

  Then, the imprint image uniformity determination unit 106 reads out image data of the character equivalent portion from the RAM 15, and calculates a pixel density for the character equivalent portion, that is, a ratio of black pixels to pixels of the entire character equivalent portion. Execute. Then, it is determined whether or not the image unevenness is lower than the predetermined level by determining whether or not the image has a certain high density. As shown in FIG. 5A, when the character-corresponding portion has a constant density (high density), it is determined that the image unevenness is below a predetermined level (image unevenness is small). On the other hand, as shown in FIG. 5B, when the character-corresponding portion does not have a certain density (low density), the image unevenness does not fall below a predetermined level (the image unevenness is large). Judge.

  If the imprint image uniformity determining unit 106 determines that the image unevenness is below the predetermined level, the warning output unit 107 does not register the imprint image data input by the imprint input unit as a registered imprint. In order to warn, the fact is output to the output device 13.

Next, a print registration process executed by the computer of the stamp registration apparatus 10 having the above-described configuration will be described.
FIG. 6 is a flowchart showing the flow of the seal registration process to which the present invention is applied.

  The seal registration process is performed as a pre-process as described with reference to FIGS. 3 to 5, that is, a process performed by the image input unit 101, the seal stamp extraction unit 102, the seal stamp extraction unit 104, and the character part extraction unit 105. Execute. Thereby, the imprint frame equivalent part and the character equivalent part are extracted.

  In step S601, in order to determine whether or not the image unevenness of the seal impression is below a predetermined level, a subroutine “seal frame linearity determination process” for determining the linearity of the seal stamp corresponding portion is executed. Details of the subroutine “seal frame linearity determination processing” will be described later with reference to FIGS. 7 and 8.

  Next, in step S602, in order to determine whether or not the image unevenness of the seal imprint is below a predetermined level, a sub-routine “seal character portion pixel density determination process” for determining the high density of the character-corresponding portion of the seal imprint is executed. . Details of the subroutine “seal character portion pixel density determination processing” will be described later with reference to FIGS. 9 and 10.

  Then, in step S603, based on the results of the subroutine “Seal frame linearity determination processing” in step S601 and the subroutine “Seal character portion pixel density determination processing” in step S602, imprints that are not suitable for seal registration are excluded, and seal registration is performed. The subroutine “stamp seal comprehensive discrimination process” for registering only the seal imprint suitable for the above is executed. Details of the subroutine “stamp mark comprehensive determination processing” will be described later with reference to FIG.

Here, the subroutine “seal frame linearity determination processing” in step S601 in FIG. 6 will be described.
FIG. 7 is a flowchart showing the flow of the subroutine “Seal frame linearity determination process” of the seal registration process. FIG. 8 is a diagram for explaining a specific example of linearity determination.

  First, in step S701, as shown in FIG. 8B, vertical lines 71 and horizontal lines 72 that pass through the center of the circular shape of the imprint frame are obtained for the portion corresponding to the imprint frame extracted by the above preprocessing. Then, in step S702, as shown in FIG. 8B, an oblique 45-degree upward slanting line 73 and an oblique 45-degree downward oblique line 74 passing through the circular center of the imprint frame are obtained.

  Next, in step S703, the four lines of the vertical line 71 and the horizontal line 72 obtained in step S701, and the oblique 45 degree right-up oblique line 73 and oblique 45 degree right-down oblique line 74 obtained in step S702 are the seal frame. A location that contacts the circumference (a predetermined area including a check point that is an intersection) is defined as a check location (N locations). In this case, eight locations where the four lines contact the circumference are taken as check locations. Specifically, check areas 81 and 82 in which the vertical line 71 is in contact with the circumference, check areas 83 and 84 in which the horizontal line 72 is in contact with the circumference, and a check area 85 in which the diagonal line 45 that is inclined 45 degrees to the right is in contact with the circumference. 8 and 86, and eight diagonal check lines 87 and 88 are in contact with the circumference.

Then, the following steps S704 and 705 are executed in order for each of these eight check points.
First, in step S704, 10 percent (%) of the diameter of the seal frame corresponding portion with respect to the traveling direction (tangential direction at the circumferential check point) centering on the check point (20% in total). ) Dot range.

  In step S705, the linearity of the range to be checked in step S704 is determined. If it is determined that there is linearity, there is a possibility that the stamp is an imprint that is not suitable as a registered seal. Is high, 1 is added to “stamp linearity point”. The linearity may be determined by using the Hough transform method or the like as described above. For example, as shown in FIG. 8A, the coordinates of each dot position of the check point extension (the check point 831) In the case where the X coordinate is the check point in the check area 81 and the Y coordinate is the same as the check point coordinate (the X coordinate of the check point 831), it may be considered that there is linearity.

  When step S704 and step S705 are executed for all the check areas, the subroutine “seal frame linearity determination processing” is terminated.

Next, the subroutine “Seal character part pixel density determination process” in step S602 in FIG. 6 will be described.
FIG. 9 is a flowchart showing a flow of the subroutine “Seal stamp character part pixel density determination process” of the seal imprint registration process. FIG. 10 is a diagram for explaining a specific example of pixel density determination.

  First, in step S901, the image data read by the scanner or the like, in which the stamp frame is removed as described above from the read seal image data (see FIG. 10A) stamped on a medium such as a form. For the data, based on the thickness and size, the part corresponding to the seal frame is removed and the part corresponding to the character is left (see FIG. 10B). Note that this step S901 skips the subroutine “seal frame linearity determination process” in step S601 in the seal imprint registration process of FIG. 6, and performs the processes by the seal frame extraction unit 104 and the character part extraction unit 105 in the above-described pre-processing. This is the step when not executed.

  Next, in step S902, as shown in FIG. 10B, the number of pixel blocks (character constituent blocks) constituting the character is obtained for the character equivalent portion. In the example shown in FIG. 10B, five character constituent chunks 91, 92, 93, 94, and 95 are extracted. Extraction of character constituent blocks is performed, for example, by converting input image data into matrix bitmap data in units of pixels, and performing labeling so that the connected components of black pixels form one block.

Then, the following step S903, step S904, step 905, and step S906 are sequentially executed for each of these five character constituent blocks.
First, in step S903, the edge of the character constituent block is detected by known edge processing such as a Laplacian filter.

In step S904, the area of the character component block surrounded by the edges detected in step S903 is calculated including the white pixel portion.
Next, in step S905, the number of dots of black pixels in the character constituent block surrounded by the edges detected in step S903 is obtained, and the ratio of black pixels to the area calculated in step S904, that is, the pixel density is calculated. .

  In step S906, it is determined whether or not the pixel density of the character constituent block is a predetermined value, for example, 75% or more. If the pixel density is equal to or higher than the predetermined value, it is determined that the character constituent block is high density. If it is determined that the density is high, “stamp stamp pixel density point” is incremented by 1 because there is a high possibility that it is a stamp such as a stamp that is not suitable as a registered seal.

When Steps S903 to S906 are executed for all character constituent blocks, the subroutine “Seal frame linearity determination processing” is terminated.
Next, the subroutine “stamp stamp comprehensive determination process” in step S603 will be described.

FIG. 11 is a flowchart showing the flow of the subroutine “stamp seal comprehensive determination process” of the seal imprint registration process.
First, in step S1101, the “stamp stamp linearity point” cumulatively added in step S705 of FIG. 7 is referred to. In step S1102, whether or not the cumulatively added “stamp stamp linearity point” is equal to or greater than a predetermined value. Judging. Here, the predetermined value to be compared with the “stamp linearity point” is, for example, “3 points” if there are 4 check points in FIG. 7, and “5 points” to “7 points” if there are 8 check points. Is desirable.

  If it is determined in step S1102 that the value is not equal to or greater than the predetermined value (step S1102: No), in step S1103, the “stamped pixel density point” cumulatively added in step S906 of FIG. 9 is referred to. In step S1104, It is determined whether or not “stamp mark pixel density points” for character constituent chunks exist in character constituent chunks of a predetermined ratio or more. Here, for example, “50%” to “70%” is desirable as the predetermined ratio for determining whether or not “stamp mark pixel density point” exists.

  If it is determined in step S1104 that “stamped pixel density points” do not exist in the character composition block of a predetermined ratio or more (step S1104: No), it is determined that the imprint is a three-sentence or real seal suitable for seal imprint registration. In step S1105, it is registered as a registered seal in the registered seal database 30 in association with an account number or the like.

  On the other hand, if it is determined in step S1102 that the value is greater than or equal to the predetermined value (step S1102: Yes), or if it is determined in step S1104 that “stamp mark pixel density points” exist in the character composition block that is greater than or equal to the predetermined ratio ( In step S1104: Yes), it is determined that the stamp is not suitable for seal imprint registration, and in step S1106, a warning is sent to the effect that registration is not performed.

  The embodiments of the present invention have been described above with reference to the drawings. However, the above-described embodiments of the present invention are not limited to hardware, a DSP (Digital Signal Processor) board, or a CPU as a function of an imprint registration apparatus. It can be realized by firmware or software on the board.

  In addition, the imprint registration apparatus to which the present invention is applied is not limited to the above-described embodiment as long as the function is executed, and even a single apparatus or a system composed of a plurality of apparatuses Needless to say, the integrated device may be a system in which processing is performed via a network such as a LAN or a WAN.

  It can also be realized by a system including a CPU, a ROM or RAM memory connected to a bus, an input device, an output device, an external recording device, a medium driving device, and a network connection device. That is, a ROM or RAM memory, an external recording device, and a portable recording medium that record a software program for realizing the system of the above-described embodiment is supplied to the seal registration device, and the computer of the seal registration device executes the program. Needless to say, this can also be achieved by reading and executing.

  In this case, the program itself read from the portable recording medium or the like realizes the novel function of the present invention, and the portable recording medium or the like on which the program is recorded constitutes the present invention.

  Examples of portable recording media for supplying the program include flexible disks, hard disks, optical disks, magneto-optical disks, CD-ROMs, CD-Rs, DVD-ROMs, DVD-RAMs, magnetic tapes, and nonvolatile memory cards. Various recording media recorded via a network connection device (in other words, a communication line) such as a ROM card, electronic mail or personal computer communication can be used.

  The computer (information processing apparatus) executes the program read out on the memory, thereby realizing the functions of the above-described embodiment, and an OS running on the computer based on the instructions of the program. Performs part or all of the actual processing, and the functions of the above-described embodiments are also realized by the processing.

  Furthermore, a program read from a portable recording medium or a program (data) provided by a program (data) provider is stored in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. After being written, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are also realized by the processing. obtain.

  That is, the present invention is not limited to the embodiment described above, and can take various configurations or shapes without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Imprint registration system 10 Imprint registration apparatus 11 CPU (Central Processing Unit)
12 Input device 13 Output device 14 ROM (Read Only Memory)
15 RAM (Random Access Memory)
16 Interface (I / F)
17 Bus 20 Image reading device 30 Registered imprint database 71 Vertical line 72 Horizontal line 73 Diagonal 45 degree right-up oblique line 74 Diagonal 45 degree right-down oblique line 81, 82, 83, 84, 85, 86, 87, 88 Check areas 91, 92, 93, 94, 95 Character composition block 101 Image input unit 102 Imprint extraction unit 103 Imprint output unit 104 Seal frame extraction unit 105 Character part extraction unit 106 Imprint image uniformity determination unit 107 Warning output unit 108 Imprint registration unit 831 Check point

Claims (6)

The imprint registration device computer
An imprint input means for inputting an imprint of a seal stamp stamped on a medium read by an image reading apparatus as imprint image data;
Imprint image uniformity determination means for determining whether or not the image unevenness of the seal image data input by the seal input means is below a predetermined level;
Imprint registration means for registering the imprint image data input by the imprint input means as a registered imprint when it is determined by the imprint image uniformity determination means that the image unevenness has not fallen below the predetermined level;
Imprint registration program to function as. The computer,
A seal frame extraction means for extracting a portion corresponding to a seal frame using a circular shape detection process from the read seal image data input by the seal impression input means;
Further function as
The imprint image uniformity determining means determines whether or not the image unevenness is obtained by determining whether or not the predetermined range of the seal frame corresponding portion extracted by the seal frame extracting means has a certain linearity using a straight line detection process. Determine whether or not is below the predetermined level,
The imprint registration program according to claim 1, wherein: The computer,
A seal frame extraction means for extracting a portion corresponding to a seal frame using a circular shape detection process from the read seal image data input by the seal impression input means;
A character portion extraction means for extracting a portion other than the seal frame equivalent portion extracted by the seal frame extraction means from the read seal image data input by the seal input means;
Further function as
The imprint image uniformity determining means determines whether or not the image unevenness has the constant density using a pixel density calculation process for the character equivalent portion extracted by the character portion extracting means. Determine whether it falls below a certain level,
The imprint registration program according to claim 1, wherein: A warning output means for outputting a warning that the imprint image data input by the imprint input means is not registered as a registered imprint when it is determined by the imprint image uniformity determination means that the image unevenness is lower than the predetermined level;
The imprint registration program according to any one of claims 1 to 3 for functioning as a program. An imprint input means for inputting, as imprint image data, an imprint of a seal stamped on a medium read by an image reading device;
Imprint image uniformity determination means for determining whether or not the image unevenness of the seal image data input by the seal input means is below a predetermined level;
When the imprint image uniformity determining means determines that the image unevenness has not fallen below the predetermined level, an imprint registration means for registering the imprint image data input by the imprint input means as a registered imprint;
An imprint registration apparatus comprising: A seal registration method executed by a computer of an imprint registration device,
The seal imprint of the seal stamped on the medium read by the image reader is input as seal image data,
Determining whether the image unevenness of the input seal image data is below a predetermined level;
When it is determined that the image unevenness has not fallen below the predetermined level, the input imprint image data is registered as a registered imprint.
An imprint registration method characterized by that.