JP4196393B2 - ID photo system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ID photo system, and more particularly to an ID photo system that automatically adjusts the angle of view of a captured image.
[0002]
[Prior art]
Japanese Laid-Open Patent Publication No. 9-27897 discloses an ID photograph with a cut mark and a manufacturing apparatus therefor, which can cut a photographic sheet in a well-balanced manner for a plurality of types of ID photos such as for visas and passports. .
[0003]
Also, when the user inputs the size of the ID photo and the enlargement size at the time of printing, the electronic camera measures the distance to the subject and outputs the shooting range information so that the shooting range can be imprinted. An ID photo camera that calculates the above and drives the zoom lens is disclosed in Japanese Utility Model Publication No. 5-30848.
[0004]
[Problems to be solved by the invention]
However, the cut-marked ID photo and its manufacturing apparatus disclosed in Japanese Patent Application Laid-Open No. 9-27897 only consider the size of the ID photo, and the subject of the subject required in the actual passport. Since no adjustment was made regarding the size of the face and the position of the face, there was a problem that even if the size of the ID photo matched, it could not be used as the ID photo.
[0005]
Further, in the ID photo camera disclosed in Japanese Utility Model Publication No. 5-30848, zoom photography is performed using a silver salt camera. Therefore, when using ID photos for a plurality of uses, the plurality of uses are used. In addition, it was necessary to perform zooming and set the size of the photographed person and the size of the ID photo to a predetermined size and re-shoot.
[0006]
On the other hand, the shape of each type of ID photo needs to match the aspect ratio and size according to the type of ID photo, but according to the type of ID photo while setting the subject's image at the desired position. There is a problem that it is difficult to cut a photograph to an aspect ratio and a size.
[0007]
The present invention has been made in view of such circumstances, and provides an ID photo system capable of automatically adjusting a shooting angle of view and a position and size of a subject according to the use of ID photo. With the goal.
[0008]
Another object of the present invention is to provide an ID photo system in which the size and aspect ratio of a print can be set according to the use of ID photo, and the position to cut the ID photo to a predetermined size can be indicated. And
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention obtains image data representing a subject image and adjusts the angle of view for photographing, and the size of the face from the image data obtained from the photographing means when taking an ID photo. A detecting means for detecting the size , a selecting means for selecting a desired ID photo from various ID photos, and an ID photo having the largest face size among the ID photos that can be selected by the selecting means. An angle-of-view adjusting means for automatically adjusting an angle of view photographed by the photographing means so that the identification photograph of the largest size is necessary for printing at a predetermined resolution; and the detected face The image data obtained by shooting at the adjusted angle of view is reduced to generate new image data so that the size of the image becomes a predetermined size required by the selected ID photo Size unit, on the basis of the new image data is characterized in that a printer for printing an image at the predetermined resolution.
[0010]
According to the present invention, a photographing unit capable of acquiring image data indicating a subject image and adjusting a field angle of photographing, and a detection for detecting a face size from image data obtained from the photographing unit at the time of photographing an identification photograph Means, selecting means for selecting a desired ID photo from various ID photos , and printing the ID photo having the largest size among the ID photos whose detected face size can be selected by the selecting means at a predetermined resolution. A field angle adjusting means for automatically adjusting a field angle photographed by the photographing means so that the identification photograph of the largest size needs to have a predetermined size, and the detected face size is the Resizing means for reducing the image data obtained by photographing at the adjusted angle of view to generate new image data so that the selected ID photo has a predetermined size required; Since a printer for printing an image at a predetermined resolution based on the new image data, it is possible to adjust automatically the size of the imaging angle and the photographer according to ID photo applications .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of an ID photo system according to the present invention will be described below in detail with reference to the accompanying drawings.
[0012]
FIG. 1 is an external perspective view showing an embodiment of an electronic camera. A lens barrel 3 incorporating a photographic lens 2 is attached to the center of the front of the electronic camera 1 that is a photographing means, and a strobe window 4 and a finder window 5 are formed above the photographing lens 2. Further, an AF (autofocus) light projecting window 6 and an AF light receiving window 7 are provided vertically on the right side of the finder window. Reference numeral 8 denotes a strobe light control sensor.
[0013]
The photographing lens 2 is composed of a zoom lens, and is driven according to an operation of a zoom lever 20 (see FIG. 2) provided on the back of the electronic camera 1 or a command from a CPU controlling the processing of the electronic camera 1. The angle of view can be changed or adjusted to a focal length of 9.2 mm to 25.8 (equivalent to 35 mm to 105 mm in terms of a 35 mm camera) by a driving force of a motor (not shown). Although not shown in detail inside the finder window 5, a moving lens group constituting an objective lens is arranged, and the moving lens is driven in conjunction with a change in the focal length of the photographing lens 2. A zoom finder is configured. Furthermore, the electronic zoom can be doubled by setting the x2 mode. That is, a maximum zoom of 6 times is possible by optical zoom and electronic zoom.
[0014]
A light projecting means such as an infrared light emitting diode is provided inside the AF light projecting window 6, and a light receiving means including a light receiving element such as a photodiode is disposed inside the AF light receiving window 7. The light projecting unit and the light receiving unit constitute a distance measuring unit that measures the distance to the subject. The distance measuring unit (AF unit) obtains the distance to the subject based on, for example, the principle of triangulation, and the result is used for autofocus (AF) control.
[0015]
A shutter button 9, a mode dial 10, an up / down dial 11, an accessory shoe 12, and a liquid crystal display panel 13 are provided on the upper surface of the electronic camera 1. A size switching button 14 is sequentially provided on the left side of the liquid crystal display panel 13 from the front. A delete button 15 and a print button 16 are provided side by side.
[0016]
The mode dial 10 is provided so as to be rotatable in both forward and reverse directions, and the function of the electronic camera 1 can be changed depending on the dial setting position. For example, "OFF"-"AUTO"-"SETUP"-"P"-"S"-"A"-"M"-"PC"-"PLAY" in order of 9 steps for each click stop position of the rotation operation. The mode is changed, “PLAY” is followed by “OFF”, and the dial rotates once.
[0017]
The “OFF” mode is a position set when the electronic camera 1 is not used. Under this mode, the power of the electronic camera 1 is turned off. “AUTO” is a mode that is set when automatic shooting is performed. In this mode, AF and AE (automatic exposure control) function effectively, and the photographer simply presses the shutter button 9 to perform other special operations. It is possible to take a picture without performing any operation. “SETUP” is a mode for performing various settings such as date, time, sensitivity correction, compression mode, color / monochrome, etc., and it is up while checking the display on the liquid crystal display panel for each item to be set under this mode. The desired setting input is performed by operating the down dial 11 and a set button 23 (FIG. 2) described later.
[0018]
“P” is a program AE, “S” is a shutter priority, “A” is an aperture priority, and “M” is a position for setting a shooting mode for manual exposure. The program selection, shutter speed setting, aperture value setting, etc. in each of these shooting modes are performed by operating the up / down dial 11 and the set button 23 to perform desired inputs.
[0019]
“PC” is a mode for transmitting and receiving image data by connecting the electronic camera 1 and a personal computer with a dedicated cable. “PLAY” is a mode set when a captured image is reproduced.
[0020]
The size switching button 14 is a button used when setting and switching the print size of various ID photographs, and the erasing button 15 is used when instructing erasing of image data stored in the memory card. Button. The liquid crystal display panel 13 displays the selected print size, various switch states, the remaining battery level, the memory usage status, and the like. Details of the print size display and the like displayed on the liquid crystal display panel 13 will be described later.
[0021]
FIG. 2 is a rear perspective view of the electronic camera shown in FIG. A zoom lever 20 is provided on the back surface of the electronic camera 1. By operating the zoom lever 20 upward or downward, the focal length of the taking lens 2 is set to the long focal side (tele) or the short focal side (wide). Can be changed manually. A viewfinder eyepiece 22 is formed at the upper left corner of the back of the camera, and a visual field substantially equal to the shooting field angle can be observed from the eyepiece 22.
[0022]
On the left side of the eyepiece 22 of the finder, a set button 23 and a scene number switching button 24 are provided vertically. The set button 23 is used for various input settings in combination with the up / down dial 11 as described above. The scene number switching button 24 is a button used when switching between 1-scene printing or 2-scene printing.
[0023]
A memory card cover 25 is provided on the right side surface portion of the electronic camera 1 in FIG. A memory card loading chamber as recording means is formed inside the electronic camera 1. The memory card cover 25 is opened and the memory card is inserted into the electronic camera 1, or a memory card is inserted from the electronic camera 1. It can be taken out. A transparent memory card confirmation window 27 is formed in the center of the back of the electronic camera 1, and it can be confirmed whether or not a memory card is loaded in the electronic camera 1 through the confirmation window 27.
[0024]
FIG. 3 is a perspective view showing a bottom surface of the electronic camera shown in FIG.
[0025]
On the bottom surface of the electronic camera 1, there are provided an extension terminal 30, a tripod screw hole 32, and a unit mounting hole 34 for electrical connection with an extension unit 40 described later. The tripod screw hole 32 is also used as a fixing screw hole of the expansion unit, and the unit mounting hole 34 is L-shaped so that an L-shaped hook (see FIG. 4) formed on the expansion unit side can be engaged. Is formed.
[0026]
Further, a battery cover 36 is provided on the bottom surface of the electronic camera 1 so as to be freely opened and closed via a hinge 37, and the battery cover 36 is opened by operating a battery cover open knob 38 formed on the battery cover 36. By doing so, the battery can be replaced.
[0027]
FIG. 4 is an external perspective view of an expansion unit assembled to the bottom surface of the electronic camera shown in FIG. FIG. 4 shows a state seen from the back side of the expansion unit 40.
[0028]
On the upper surface of the expansion unit 40, a terminal 42 that fits into the expansion terminal 30 of the electronic camera 1, a fixing screw 43, and a substantially L-shaped hook 44 are provided. The extension unit 40 is assembled to the bottom of the electronic camera 1 by engaging the hook 44 with the unit mounting hole 34 on the electronic camera 1 side and screwing the fixing screw 43 into the screw hole 32 for the tripod. 1 and the expansion unit 40 are electrically connected by an expansion terminal 30 and a terminal 42.
[0029]
In addition, a 25-pin SCSI terminal (not shown) is provided on the left side of the expansion unit 40 in the drawing, and can be directly connected to a personal computer or printer 54 via a SCSI cable (see FIGS. 5 and 9). ).
[0030]
A slide switch 46 and a dip switch 48 are provided on the back surface of the expansion unit 40. The slide switch 46 is used for switching the OFF position, the SCSI position, and the like. When the switch is set to the OFF position, the power save mode is set, and the consumption of the battery mounted on the electronic camera 1 side is suppressed. That is, the electronic camera 1 is substantially equivalent to a state in which the expansion unit 40 is not assembled. When the slide switch 46 is set to the SCSI position, data transmission / reception with a personal computer or printer 54 connected via the SCSI terminal becomes effective. That is, the photographed image can be sent to the personal computer, and the photographing operation of the electronic camera 1 can be performed on the personal computer side. The photographed image data can be processed and directly transferred to the printer 54 for printing.
[0031]
On the other hand, the dip switch 48 is a four-position up / down type, and more detailed setting is performed under the SCSI mode by a combination of the four switches. That is, when the SCSI mode is selected by the slide switch 46, the dip switch 48 sets the PC operation mode to enable the personal computer connection or the print mode to enable the printer connection and enable printing. Is set.
[0032]
FIG. 5 shows a system configuration in which the digital camera shown in FIG. 1 is combined with the expansion unit shown in FIG. The electronic camera 1 has a video output terminal for sending a captured image in a predetermined signal format such as NTSC, and the video output terminal is attached to the accessory shoe 12 with a liquid crystal viewfinder, a liquid crystal monitor 50, or a television monitor. By connecting to an image display device such as the above, a through image (moving image) or a captured image can be confirmed.
[0033]
In addition, a memory card 52 serving as a recording unit is loaded in the electronic camera 1, and captured image data and information related to shooting are recorded on the memory card 52 in a predetermined format. For example, a format conforming to the Exif format is adopted as the recording method, and image data compressed in JPEG format and thumbnail data of 80 × 60 pixels are recorded as a set for each shot. Further, tag information of the image data is recorded together with the image data.
[0034]
As the memory card 52, a PC card or smart media (SSFDC) that can be used with a PC card compatibility with a PC card adapter is used. The memory card 52 can be taken out from the electronic camera 1 and can be inserted into a notebook computer having a PC card slot or a PC card reader, and image data can be used in various devices.
[0035]
The expansion unit 40 assembled on the bottom surface of the electronic camera 1 can be directly connected to the printer 54 by a SCSI cable. Bidirectional communication is performed between the printer 54 and the expansion unit 40, and information regarding the printer model, paper size, and the like is sent from the connected printer 54 to the expansion unit 40 side.
[0036]
FIG. 6 is a view showing a state in which the same aspect frame as the print size of various ID photographs (used as cut guidance when printing) is displayed on the monitor. FIG. 6 (A) and FIG. 6 (B). FIGS. 6C and 6D show a visa frame, a passport frame, an automobile driver's license frame, and a business card frame, respectively. FIG. 7 is a diagram showing a monitor display screen showing a state in which a passport frame is synthesized on a photographed image.
[0037]
FIG. 8 is a diagram showing the display contents of the liquid crystal display panel 13 based on the operation of the size switching button 14 or the like. As described above, the size switching button 14 (selection means) is used to set and switch the print size of various ID photographs. Every time one push is performed, “OFF” → “A size (visa ID photo)”. → “B size (passport ID photo)” → “C size (car driver license photo)” → “D size (business card photo)” → “OFF”. Note that the size and aspect ratio of the frame displayed on the monitor shown in FIG. 7 are switched according to the switched application. The types of the above ID photographs are not limited to the four types in this embodiment.
[0038]
The visa ID photo print size is 50mm x 50mm (length / width aspect ratio = 1: 1), the passport ID photo print size is 45mm x 35 (aspect ratio = 9: 7), and a driver's license ID photo. Has a print size of 30 mm × 24 (aspect ratio = 5: 4), and a business card photo print size of 26 mm × 19 mm (aspect ratio = 26: 19).
[0039]
In addition, “A”, “b”, “c”, and “d” displayed as segments on the liquid crystal display panel 13 shown in FIG. 8 are designated with A size, B size, C size, and D size, respectively. Further, “2” displayed in the segment indicates that the two scene print is set by the above-described scene number switching button 24.
[0040]
FIG. 9 is a block diagram showing an internal configuration of the electronic camera or the like.
[0041]
This electronic camera 1 mainly includes a photographing lens 2, a CCD 56, an analog decoder 57, an A / D converter 58, an AF / view angle adjusting means 59 for automatically adjusting the focus and adjusting the angle of view, a card interface (card I / O F) 60, SCSI / I / F 62, central processing unit (CPU) 64, work memory 68, frame memory controller 70, compression / decompression engine 72, digital encoder 76, frame memory 78, operation unit 80, etc. Yes. The SCSI I / F 62 is provided on the expansion unit 40 side.
[0042]
Light from the subject is imaged on the light receiving surface of the CCD 56 by the photographing lens 2. For example, a CCD with a 2/3 inch 1.4 million pixel is used for the CCD 56, and image light imaged on the light receiving surface of the CCD 56 is accumulated for a predetermined time by each sensor having R, G, B filters, It is converted into R, G, and B signals in amounts corresponding to the light intensity.
[0043]
The R, G, and B signals are guided to the analog decoder 57, where the gains of the R, G, and B signals are controlled. The R, G, B signals output from the analog decoder 57 are converted into digital signals (R, G, B data) by the A / D converter 58, and then the R, G, B data are converted to Y / C. It is converted into Y / C data (luminance signal Y and chroma signal C) by processing, and is stored in the frame memory 78 via the frame memory controller 70.
[0044]
When a compression command is sent from the CPU 64, the compression / decompression engine 72 compresses the Y / C data on the frame memory 78 and outputs the compressed data to the memory card 52 via the card I / F 60. Thereby, the compressed data is recorded on the memory card 52. When the compressed data recorded on the memory card 52 is reproduced, the compression / decompression engine 72 decompresses the compressed data read from the memory card 52, and uses the decompressed Y / C data. The frame memory 78 is expanded.
[0045]
The digital encoder 76 is added with Y / C data from the frame memory 78 via the frame memory controller 70, and generates, for example, an NTSC color composite video signal based on the input Y / C data. Output to the video output terminal 82.
[0046]
The CPU 64 performs processing for separating the background and the person to be photographed from the video signal obtained by photographing, processing for detecting the photographer's face size, head top position, jaw position, and photographer size. Signal processing such as processing for adjusting or resizing the angle of view so that the height becomes a predetermined size is performed.
[0047]
An on-screen device (OSD) controller 74 generates a frame signal indicating various frames according to the present invention, a character signal indicating characters, and the like based on a command from the CPU 64, and a video signal output from the digital encoder 76. To mix.
[0048]
In the print mode, the CPU 64 converts the Y / C data stored in the frame memory 78 into R, G, B data, and stores it in the work memory 68. The R, G, B data is transferred to the printer 54 via the SCSI / I / F 62. The ROM 66 stores a color correction lookup table (LUT) corresponding to the control program and the model of each printer.
[0049]
Further, in the ID photo taking print mode or reproduction print mode, which will be described later, only Y / C data corresponding to the image in the frame indicating the selected ID photo is selected from the Y / C data stored in the frame memory 78. Is converted into R, G, B data, stored in the work memory 68, and the number of pixels of the R, G, B data is interpolated so that it is printed in the same size as the print size required for various ID photographs. As a result, R, G, B data for ID photo printing, shooting information, and frame information are transferred to the printer 54.
[0050]
Next, the operation of the electronic camera configured as described above will be described.
[0051]
The CPU 64 performs overall control of the electronic camera 1 and is based on various switch inputs from the operation unit 80 including the shutter button 9, the mode dial 10, the up / down dial 11, the size switching button 14, the print button 16, and the like. A normal shooting mode, a shooting print mode, a reproduction print mode, and the like are determined, and each circuit is controlled according to each mode.
[0052]
Here, the photographing mode is a mode in which the photographed color image data is recorded on the memory card 52, and the mode dial 10 of the electronic camera 1 is set to “AUTO”, “P”, “S”, “A”, “M”. This mode is set when the expansion unit 40 is not connected to the electronic camera 1 or when the slide switch 46 of the expansion unit 40 is not switched to the SCSI position.
[0053]
The shooting print mode is a mode in which a shot image is immediately printed on the SCSI-connected printer 54, and the mode dial 10 of the electronic camera 1 is set to “AUTO”, “P”, “S”, “A”, “M”. This mode is set when the slide switch 46 of the expansion unit 40 is switched to the SCSI position and the dip switch 48 is selected to enable the printer connection under the SCSI mode.
[0054]
The reproduction print mode is a mode for printing the reproduced image on the SCSI-connected printer 54. The mode dial 10 of the electronic camera 1 is set to “PLAY”, and the slide switch 46 of the expansion unit 40 is set to the SCSI position. This mode is set when switching and further enabling the printer connection under the SCSI mode by the DIP switch 48 is selected.
[0055]
FIG. 10 is a diagram showing an embodiment of photographing when taking an ID photo using the ID photo system according to the present invention.
[0056]
According to the figure, the person 90 to be photographed is located in front of the background plate 92, and shows a situation where an ID photo is taken by the electronic camera 1 to which the printer 54 and the monitor 50 are connected.
[0057]
Processing operations when the electronic camera 1 is set to the ID photo shooting mode and ID photos are taken will be described with reference to the flowchart shown in FIG.
[0058]
In conventional ID photo shooting, it is necessary to set the zoom magnification and the photo size according to the type of ID photo to be used before shooting starts. However, according to the present invention, the zoom magnification is automatically set. The photo size can be set when printing after shooting. The zoom magnification for shooting is set to a shooting range that can secure an area for a visa ID photo (50 mm × 50 mm print size) that requires the largest size. In this embodiment, shooting is performed at 80 mm × 60 mm. When the resolution of the printer at the time of printing is 203 dpi (8 dots / mm resolution), the shooting range is shot with a recording pixel number of 640 × 480 dots.
[0059]
When the electronic camera 1 is pointed at the subject and the shutter button 9 is pressed, the processing program in the CPU 64 of the electronic camera 1 is executed in step S100 “provisional shooting” (hereinafter abbreviated as S100) shown in FIG. Jump and perform temporary shooting. Then, in order to analyze the photographed image, the process proceeds to the next step S102 “Extraction of photographed person by chroma key”.
[0060]
In S102, using the chroma key function of image processing or the like, a process of removing the background 90 from the image and extracting the subject 90 is performed, and the process proceeds to the next S104 “Detection of head top position”. In general, the ID photo is required to have no cap, so that no erroneous recognition of the top position of the head due to a cap or the like will occur.
[0061]
In S104, scanning is performed from the top of the image shown in FIG. 12 to obtain the height Y1 of the top position of the head, and in the next S106, the size of the horizontal width of the subject “X” is sequentially scanned from the head. → Go to “Memory”.
[0062]
In S106, the width of the subject 90 at the time of scanning (scanning) is stored. At this time, the value of “X” increases as it scans downward from the head to the shoulder. Then, in the next S108 “value check of“ X ”→ maximum value detection”, the maximum value of “X” is obtained, and the approximate shoulder position is detected.
[0063]
In the next step S110 “determining that a portion smaller than a certain ratio is a face with respect to the maximum value of“ X ””, a portion smaller than a certain ratio with respect to the maximum value of “X” is determined to be a face. Recognize the range and position of In general, the width of the face and the width of the shoulder are different by about 2.5 to 3 times, so that it can be easily judged.
[0064]
In the next step S112 “examine the value of“ X ”in order from the head and determine that the lowest position is the jaw”, the position Y2 of the jaw shown in FIG. 12 is recognized. The value of the chin position Y2 may be obtained by performing image processing from the color difference, or may be obtained directly from the depth of the image based on the focus information. Alternatively, it may be obtained indirectly by proportionally calculating from the detected shoulder position Y3 and the top position Y1 of the head based on experience values.
[0065]
In the next step S114 “face size determination”, the face length (Y2−Y1) is calculated, and the next step S116 “appropriate face size (dot size) is compared with the size of the photographed face. Proceed to.
[0066]
In S116, the length of the face obtained by provisional photographing is a predetermined number of pixels (when the head length is required to be 27 ± 2 mm in the reference visa certification photo, 8 dots / mm When printing with a printer having a resolution, a process of calculating a ratio of 216 ± 16 dots is a predetermined number of pixels) is performed.
[0067]
In the next S118 “Zoom movement amount calculation”, a process of calculating the zoom movement amount when changing the angle of view is performed from the face length calculated in S116 and the required number of pixels. When the zoom movement amount is calculated, the process proceeds to the next S120 “zoom movement”, and the AF / view angle adjusting means 59 outputs a command for zooming to the tele side or the wide side by the calculated amount, and sets the predetermined view angle. Adjust so that If the zoom movement amount is discrete due to the configuration of the AF / view angle adjusting means 59, the closest view angle is adjusted. The zoom movement may be an optical zoom that changes the focal length of the optical system, or an electronic zoom that changes the angle of view by computing the obtained image data.
[0068]
In the next S122 “Generate“ Peep ”sound and notify the user of zoom movement completion”, the user is notified that the adjustment of the angle of view has been completed and the angle of view has been set. Then, in the next S124 “End”, the provisional photographing process is ended.
[0069]
Next, when the actual photographing that becomes the ID photo is performed in S126 “real photographing”, the image shown in FIG. 13 adjusted to a predetermined angle of view is obtained. Here, the reason why the shooting range is wide with respect to the size for each use is to ensure flexibility when inserting cut guidance that is a guide for cutting during printing.
[0070]
Then, in S128 “Resize processing”, a desired ID photo is designated and the size is changed, printing is performed in S130 “Print processing”, and the photo printed in S132 “Cut and shape” is cut to a predetermined size. After cutting and shaping according to the guidance, the ID photo is completed in S134 “End”.
[0071]
FIG. 14 shows a flowchart of the image resizing process and the cut guidance inserting process after the completion of the main photographing.
[0072]
According to the figure, when the actual photographing is completed in S126, the user designates a desired use of the ID photo and starts the resizing process. As shown in FIG. 8, the user operates the size switching button 14 and the like while viewing the display contents on the liquid crystal display panel 13 to set and switch various ID photographs. In the next S200 “ID photo is for visa?”, It is determined whether the ID photo set by the user is a visa ID photo. If the ID photo set by the user is not for a visa, resize processing is required, so the process proceeds to the next step S202 “Resize to desired size by bilinear processing”. If the ID photo set by the user is for a visa, the resizing process is not necessary, and the process proceeds to S204 “insert cut guidance according to face position”.
[0073]
In S202, a resizing process for reducing an image obtained by photographing is performed. The present invention does not limit the resizing method, and uses various methods such as bilinear processing, three-dimensional convolution interpolation method, spline interpolation, and the like to measure the size of the face of the subject and the size of the print. Is resized so that the desired size is obtained.
[0074]
In S204, cut guidance corresponding to the use of the ID photo shown in FIG. 7 is inserted into the image data according to the position of the face of the subject. The cut guidance may be a solid line, a broken line, a mark indicating a frame only at four corners, or a combination of a plurality of line types. The cut guidance color is complementary to the image color, or a white frame is displayed when the background color is dark, and a black frame is displayed when the background color is light. It may be displayed in an easy-to-see manner, or may be a frame in which the density is different between inside and outside the frame, or a frame distinguished between color and black and white.
[0075]
Further, by combining and printing the shooting information such as the shooting date outside the cut guidance frame, it can be used to determine whether or not the taken ID photo is a photo taken within a predetermined time limit. . Further, combining information such as the names of photographed persons and printing them at the same time is convenient for taking and classifying a plurality of photographed ID photographs at once.
[0076]
When the printer 54 is connected to the electronic camera 1 and printing of the ID photo is designated, the image data for ID photo is transferred to the printer 54 in S206 “Data transfer to printer”, and the next S208 “Print frame to printer” is selected. In the “number designation”, predetermined print frame number data is transmitted. When the settings of the various printers are completed, the process proceeds to the next S208 “execute printing” to start printing.
[0077]
When the printing operation of the designated ID photo is completed at the printer 54, the program of the electronic camera 1 proceeds to the next S212 "END", and the printing process is ended.
[0078]
FIG. 15 shows the relationship among the size of each ID photo, the actual print size, the dot size (number of pixels), and the number of print frames.
[0079]
This figure shows an example in which the resolution of the printer is 203 dpi (8 dots / mm). When using a printer with another resolution, the dot size in the table is changed according to the resolution of the printer. These ID photo data and cut guidance data are stored in advance in storage means such as the ROM 66 or the memory card 52.
[0080]
According to the figure, the maximum number of pixels is the ID photo for the visa, and the number of pixels of the other ID photos is less than or equal to the number of pixels for the visa. When used for a photograph, a desired ID photograph can be easily obtained by performing a resizing process using a bilinear algorithm or the like after photographing.
[0081]
When taking an ID photo using the ID photo system according to the present invention, the photographer simply adjusts the shooting angle so that the face of the person being seated is positioned at the center of the angle of view. Since the camera 1 automatically adjusts the angle of view and prints the cut guidance along with the ID photo, it is possible to obtain a versatile ID photo without failure.
[0082]
In this embodiment, the electronic camera is configured so that a monitor can be externally attached. However, the present invention is not limited to this, and an electronic camera with an integrated monitor may be used, and a printer may be built in the camera. Good.
[0083]
In the above description, the subject image is taken as the person image and the image is automatically adjusted for the ID photo. However, the present invention is not limited to the person image.
[0084]
【The invention's effect】
As described above, according to the ID photo system according to the present invention, the image data obtained by acquiring the image data indicating the subject image and adjusting the angle of view to be taken, and the image obtained from the image taking means when taking the ID photo are taken. Detection means for detecting the face size from the data, and an image for automatically adjusting the angle of view taken by the photographing means so that the detected face size becomes a predetermined size required by the ID photo Since the angle adjusting means is provided, it is possible to automatically adjust the shooting angle of view and the size of the subject in accordance with the use of the ID photo.
[Brief description of the drawings]
1 is an external perspective view showing an embodiment of an electronic camera. FIG. 2 is a rear perspective view of the electronic camera shown in FIG. 1. FIG. 3 is a bottom perspective view of the electronic camera shown in FIG. FIG. 5 is a configuration diagram of a system combining the electronic camera shown in FIG. 1 and a device connected to the electronic camera. FIG. 6 is a frame having the same size as the print size of various ID photographs. FIG. 7 is a diagram showing a display screen of a monitor showing a state in which a passport frame is synthesized on an image. FIG. 8 is a display of a liquid crystal display panel based on an operation of a size switching button or the like. FIG. 9 is a block diagram showing an internal configuration of an electronic camera or the like. FIG. 10 is a diagram showing an embodiment for taking an ID photo using the ID photo system according to the present invention. ] Processing operation to take ID photo FIG. 12 is a diagram showing an image photographed in provisional photographing. FIG. 13 is a diagram depicting an image of actual photographing adjusted to a predetermined angle of view. FIG. 14 is image resizing processing and cut guidance after the photographing is completed. FIG. 15 is a flowchart showing the insertion process. FIG. 15 is a diagram showing the relationship between the size of each ID photo according to application, the actual print size, the dot size (number of pixels), and the number of print frames.
DESCRIPTION OF SYMBOLS 1 ... Electronic camera, 2 ... Shooting lens, 9 ... Shutter button, 11 ... Up / down dial, 14 ... Size switching button, 16 ... Print button, 20 ... Zoom lever, 40 ... Expansion unit, 50 ... Monitor, 52 ... Memory Card 54... Printer 59 59 AF / viewing angle adjusting means 62. SCSI / I / F 64 64 CPU 68 Work memory 70 Frame memory controller 80 Operation unit 82 82 Video output terminal 90 ... Subject, 92 ... Background board

Claims (8)

An image capturing means capable of acquiring image data indicating a subject image and adjusting an angle of view to be captured;
Detecting means for detecting the size of the face from the image data obtained from the photographing means at the time of taking the ID photo;
A selection means for selecting a desired ID photo from various ID photos;
The size of the detected face is a predetermined size required by the ID photo of the largest size when printing the ID photo of the largest size among the ID photos selectable by the selection means at a predetermined resolution. Angle-of-view adjusting means for automatically adjusting the angle of view taken by the imaging means,
The image data obtained by shooting at the adjusted angle of view is reduced to generate new image data so that the detected face size becomes a predetermined size required by the selected ID photo. Resizing means,
A printer that prints an image at the predetermined resolution based on the new image data;
ID photo system characterized by comprising.   2. The ID photo system according to claim 1, further comprising recording means for recording image data obtained by photographing at the adjusted angle of view.   3. The ID photograph system according to claim 1, wherein the detected face size is a length from the top position of the head to the chin. 4. The ID photo system according to claim 1, further comprising a synthesis means for synthesizing cut guidance indicating a cut range corresponding to the selected ID photo with the new image data . 5. The ID photo system according to claim 4, wherein the synthesizing unit synthesizes the cut guidance according to the detected face position. The cut guidance, claim 4 or 5 identification photograph system, wherein the solid, dashed, at least any one of the corners frame. The color of the cut guidance, claim 4, 5 or 6 ID photo system for background color of the complementary color, the background color against concentration, white, and characterized in that at least any one of the black. The photographing means obtains photographing date and photographing information related to photographing together with image data,
The printer of any one of the identification photograph system of Claim 1 to 7, wherein the printing the photographic information.

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