JP5844206B2 - Print production apparatus and print production method - Google Patents

Description

  The present invention relates to a printed material production apparatus and a printed material production method for producing a printed material on which a face image is printed.

  2. Description of the Related Art Conventionally, there is known a box-type photography apparatus for taking an identification photograph or the like to be attached to a license, passport, resume, or the like. A photographic device shoots a person and prints and outputs photographs of various sizes according to usage. In the conventional photography apparatus, a person is photographed while sitting in front of a single background wallpaper. Therefore, to change the background color of the photo, it was necessary to change the wallpaper.

  There is also known an apparatus that synthesizes a background image and prints out a person image by processing using chroma key composition (see, for example, Patent Document 1). The user can select a desired image from various background images prepared in advance.

  In chroma key composition, a color difference between a person in a captured image and a background color is determined, and the person image is cut out from the captured image. When shooting is performed under shooting / lighting conditions suitable for portrait shooting, the color difference between the person and the background color is small, and it is difficult to cut out the portrait image. For example, when the background color (wallpaper color) is darkened, the color difference with hair or the like is reduced, and when the background color is lightened, the color difference with skin color or the like is reduced. In order to obtain a person image suitable as an ID photo from an image shot under shooting / lighting conditions in which the color difference between the person and the background color is large, color conversion processing for the person image is essential. In a conventional photography apparatus, color conversion processing is performed on a composite image in which a background image is combined with a person image. However, the color conversion process changes the brightness of the background in the composite image, and there is a problem in that a photograph with a background color different from that desired by the user is printed out.

Japanese Patent No. 4217066

  The present invention has been made in consideration of such points, and a printed matter in which a composite image of a background image and a person image with adjusted brightness is printed while preventing a change in background color is produced. An object of the present invention is to provide a print production apparatus and a print production method.

According to an aspect of the present invention, there is provided a print production apparatus that captures a person to be photographed and generates a captured image, a cutout unit that cuts out a person image from the shot image, and the person image cut out by the cutout unit. A color conversion unit that performs color conversion processing on the image, a synthesis unit that combines the background image and the color-converted person image to create a composite image, and resizes the composite image to print and preview images A resize unit that generates the image for preview, a display unit that displays the preview image, and a printer that prints and outputs the print image on a print, and the photographing apparatus includes the person image and a background color. Shooting is performed so that the amount of brightness data of the captured image that increases the color difference is increased , and the color conversion unit performs brightness conversion on the person image to increase the brightness.

  The printed matter production apparatus according to one aspect of the present invention further includes a storage unit that stores a plurality of background images, and an instruction receiving unit that receives an instruction to select a background image, and the display unit displays the plurality of background images. Preferably, the synthesis unit creates a synthesized image by synthesizing the background image selected and instructed via the instruction receiving unit and the color-converted person image.

  In the printed material production apparatus according to one aspect of the present invention, it is preferable that the resizing unit performs a reduction process of the captured image, and the clipping unit cuts out a person image from the reduced captured image.

  In the printed material production apparatus according to one aspect of the present invention, it is preferable that the printed image production apparatus further includes a skin beautifying unit that performs skin beautification on the person image.

  In the printed matter producing apparatus according to one aspect of the present invention, it is preferable that the apparatus further includes a plurality of light irradiation units that irradiate light to the subject when the photographing device photographs the subject.

  In the printed material production apparatus according to one aspect of the present invention, it is preferable that the instruction receiving unit and the display unit include a touch panel.

According to an aspect of the present invention, there is provided a printed material manufacturing method, wherein the photographed person is photographed, a photographed image is generated, the person image is cut out from the photographed image, and the person image is cut out by the step of clipping the person image. A process of performing color conversion processing on the image, a process of creating a composite image by combining the background image and the color-converted human image, and generating a print image and a preview image by resizing the composite image a step of the steps of displaying the preview image, and a step of outputting the printing the print image on the printed product, in the step of generating the captured image, and the person image and background color perform imaging so that the data amount of brightness of the captured image to increase the color difference is increased, the step of performing the color conversion process, performs a brightness conversion to the person image, to increase the brightness It is intended.

  According to the present invention, it is possible to produce a printed matter in which a composite image of a background image and a person image with adjusted brightness is printed while preventing a change in background color.

It is a schematic block diagram of the printed material preparation apparatus which concerns on embodiment of this invention. It is a schematic block diagram of the arithmetic and control unit concerning the embodiment. FIG. 3 is a functional block diagram realized by executing an image processing program according to the embodiment. It is a flowchart explaining the printed matter preparation method which concerns on the same embodiment. It is a figure which shows an example of a display screen. It is a graph which shows the example of the brightness distribution of the person image before and after a color conversion process. It is a figure which shows color space. It is a figure which shows the example of arrangement | positioning of a strobe.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a schematic configuration of a print production apparatus according to the present embodiment. The printed material producing apparatus photographs the subject P and generates the captured image data, the arithmetic control device 1 that performs image processing on the captured image data, and prints the printed material (photograph). A printer 5 and a strobe 6 that irradiates the subject P with light when the photographing apparatus 2 photographs the subject P are provided. This print production apparatus prints and outputs a composite image obtained by synthesizing a person image and a background image on a print. In addition, the wallpaper on the back side of the subject P in the print production apparatus has a color suitable for chroma key composition, for example, blue or yellow-green.

  The photographing apparatus 2 is a digital camera, for example, and includes a lens, a shutter, a CMOS sensor, an A / D converter, and the like. When the imaging device 2 captures the subject P, the CMOS sensor receives the imaging light converged by the lens through the shutter, and photoelectrically converts the optical image formed on the light receiving surface, Output as an image signal. Then, the A / D converter performs A / D conversion on the image signal output from the CMOS sensor, and generates captured image data. The photographing device 2 outputs the photographed image data to the arithmetic and control device 1.

  The print production apparatus includes a touch panel (an instruction receiving unit and a display unit) 3 that receives various instructions from the subject P and displays a preview image.

  The touch panel 3 displays an operation button, and when the operation button is pressed, receives an operation instruction corresponding to the operation button. For example, the touch panel 3 receives an instruction on the use of the printed material from the user (photographer P). The use of the printed matter corresponds to the image size (photo size) that the printer 5 prints on the printed matter, and is, for example, a driver's license, passport, resume, and the like. The touch panel 3 can display at least one background image candidate and can accept a background image selection instruction from the user. The touch panel 3 can accept a print start instruction for the printer 5 from the user.

  Further, the print production apparatus is provided with a billing unit (not shown) for accepting money paid by the photographed person P as the price of the print, or paying out change.

  The arithmetic control device 1 is connected to the photographing device 2, the touch panel 3, the printer 5, the strobe 6, and the accounting unit, and controls each unit and transfers data.

  FIG. 2 shows a hardware configuration of the arithmetic control device 1. The arithmetic control device 1 includes a CPU (central processing unit) 11, a main memory 12, a disk device 13, and an input / output unit 14. Each part of the arithmetic and control unit 1 is connected via a bus 15.

  The disk device 13 stores an image processing program 16 executed by the CPU 11 and a background image database 17 to be combined with a person image. The database 17 stores a plurality of background image data having different colors and patterns.

  The disk device 13 is, for example, a hard disk drive. The image processing program 16 may be stored not in the disk device 13 but in a ROM or a magnetic tape (both not shown).

  The CPU 11 loads the image processing program 16 in the disk device 13 into the main memory 12 and executes the image processing program 16.

  As the image processing program 16 is executed, an area for storing captured image data, person image data, color-converted person image data, background image data, and composite image data is secured on the main memory 12.

  FIG. 3 shows a functional block diagram realized by the CPU 11 executing the image processing program 16. By executing the image processing program 16, the selection unit 21, the cutout unit 22, the color conversion unit 23, the synthesis unit 24, and the resizing unit 25 are realized.

  The selection unit 21 extracts data on a plurality of background images from the database 17 of the disk device 13 and outputs the data as background image candidate data to the touch panel 3. When the selection unit 21 receives a background image selection instruction from the user via the touch panel 3, the selection unit 21 passes the background image data selected by the user to the synthesis unit 24.

  When the cutout unit 22 receives the shot image data generated by the shooting apparatus 2, the cutout unit 22 determines the color difference between the person in the shot image and the background color, and cuts out the person image from the shot image. Specifically, the background color portion is made transparent. The color difference determined here is a hue difference, a saturation difference, or a combination of a hue difference and a saturation difference.

  The color conversion unit 23 receives the person image from the cutout unit 22, performs color conversion processing on the person image, and generates a color-converted color-converted person image. The color conversion process is, for example, a process in which a person image has a brightness suitable for an ID photo. The color conversion unit 23 passes the color conversion person image data to the synthesis unit 24.

  The synthesizing unit 24 synthesizes the color-converted person image generated by the color converting unit 23 and the background image received from the selecting unit 21 to create a synthesized image. The background portion of the color-converted person image is made transparent, and image composition is performed by superimposing the background image received from the selection unit 21 on this transparent portion. Processing in the cutout unit 22 and the combining unit 24 is processing by so-called chroma key combining.

  The resizing unit 25 reduces the captured image generated by the imaging apparatus 2 or the synthesized image created by the synthesizing unit 24 to a size corresponding to the preview display on the touch panel 3 and generates a preview image. The resizing unit 25 reduces the combined image created by the combining unit 24 to a size corresponding to the photo size to be printed by the printer 5 and generates a print image. For example, the image can be reduced by evenly thinning out vertical and horizontal pixels. The photo size printed by the printer 5 corresponds to the use instructed via the touch panel 3.

  When a print start instruction for the printer 5 is received from the user via the touch panel 3, print image data is output from the arithmetic control device 1 to the printer 5.

  The printer 5 prints the print image received from the arithmetic and control unit 1 on paper and outputs it. The printing method of the printer 5 is not particularly limited, and an ink jet method, a sublimation type thermal transfer method, a melt type thermal transfer method, or the like can be used.

  Next, a print production method using such a print production apparatus will be described with reference to the flowchart shown in FIG.

  (Step S <b> 101) The touch panel 3 receives an instruction for the purpose of a photograph to be printed.

  (Step S102) The person P to be photographed performs a deposit process.

  (Step S103) The imaging device 2 captures the subject P and generates captured image data. When the photographing device 2 performs photographing, the strobe 6 irradiates the person P with light.

  (Step S104) The image processing unit 22 resizes the captured image data generated in step S103 to generate preview image data. Then, the touch panel 3 displays a preview image. The photographed person P presses a determination button on the touch panel 3 when accepting the image displayed on the touch panel 3. Accordingly, the process proceeds to step S105.

  On the other hand, the subject P pushes a re-photographing button on the touch panel 3 when re-photographing is desired. Thereby, the process returns to step S103.

  Note that a plurality of images may be taken in step S103, a plurality of preview images may be displayed on the touch panel 3, and an image most liked by the subject P may be selected.

  (Step S105) The cutout unit 22 cuts out a person image from the photographed image.

  (Step S106) The color conversion unit 23 performs color conversion processing on the person image to generate a color-converted person image.

  (Step S107) The selection unit 21 extracts data on a plurality of background images from the database 17 of the disk device 13 and displays them on the touch panel 3 as background image candidates.

  (Step S108) The synthesizing unit 24 synthesizes the color-converted person image and the background image to create a synthesized image. Further, the resizing unit 25 reduces the composite image and creates a preview image. Here, the background image used for the composite image is any one of the background images displayed on the touch panel 3 as a background image candidate.

  Then, the touch panel 3 displays a composite image. For example, as illustrated in FIG. 5, the composite image 31 and the background image candidate 32 are displayed on the touch panel 3.

  (Step S <b> 109) When the subject P accepts the composite image displayed on the touch panel 3, he presses a determination button on the touch panel 3. Accordingly, the process proceeds to step S112. When changing the background image, the process proceeds to step S110.

  (Step S110) A background image is selected from the background image candidates displayed on the touch panel 3.

  (Step S111) The synthesizing unit 24 synthesizes the color-converted person image generated in Step S106 and the background image selected in Step S110 to create a synthesized image. Then, the newly created composite image is displayed on the touch panel 3.

  (Step S112) The resizing unit 25 creates print image data from the composite image data. Then, the printer 5 receives the print image data from the arithmetic and control unit 1, prints the composite image on paper, and outputs it.

  As described above, according to the present embodiment, a person image is cut out from a photographed image, and after color conversion processing is performed on the person image, the person image is synthesized with the background image selected by the user. Therefore, it is possible to prevent the color of the background image selected by the user from changing. Accordingly, it is possible to output a sheet on which a composite image of a background image of a color desired by the user and a person image with adjusted brightness is printed.

  Next, an example of color conversion processing by the color conversion unit 23 will be described. For example, the color conversion unit 23 performs brightness conversion as color conversion processing for a person image whose brightness distribution is as shown in FIG. 6A, and the brightness distribution as shown in FIG. 6B. A color-converted person image is generated. Here, in the graphs of FIGS. 6A and 6B, the vertical axis indicates the number of pixels (data amount), and the horizontal axis indicates the brightness. In general, images with high brightness are preferred for ID photographs. However, as can be seen from the color space shown in FIG. 7, the color difference decreases as the brightness increases. Since the person image is cut out by chroma key composition by determining the color difference between the person and the background color, it is difficult to cut out the person image if the brightness of the photographed image is high. For this reason, as shown in FIGS. 6A and 7, photographing is performed with the photographing device 2 so as to increase the amount of lightness data that can increase the color difference, and then the lightness conversion of the cut-out human image is performed. As shown in FIG. 6B, it is preferable to obtain an image with high brightness.

  Further, a skin beautification process may be performed on a human image to reduce the fine unevenness of the face (skin) and the rough feeling and process it into a smooth texture. In skin-beautifying treatment, for example, while maintaining the sharpness of the contours of the face and the contours of hair, eyes, nose, mouth, etc., it is possible to remove and reduce spots and wrinkles on the skin of the face, and to reduce unevenness. Then, smoothing processing that makes it look smooth is performed. For example, by executing the image processing program 16, a skin beautifying unit that performs the skin beautifying process as described above is realized. The skin beautification processing unit performs skin beautification processing on the person image before or after the color conversion processing by the color conversion unit 23. If the color conversion process and the skin beautification process can be performed simultaneously, they may be performed simultaneously.

  In the above embodiment, it is preferable to provide a plurality of strobes 6. For example, as shown in FIG. 8, it is preferable to provide strobes 6 not only on the front side of the subject P but also on the left front side and the right front side. By arranging the strobe 6 in this way, the shadow of the subject P can be erased when the subject P is irradiated with light. Further, when the strobe 6 is disposed only on the front, the color of the wallpaper on the back side of the subject P may be reflected on the cheek of the subject P and reflected. Since the color of the wallpaper becomes a transparent part when the person image is cut out, it is difficult to cut out the person image accurately when the color of the wallpaper is reflected and overlaps the subject P. However, as shown in FIG. 8, by providing a plurality of strobes 6, it is possible to prevent the color of the wallpaper from being reflected and overlapping the subject P.

  For example, when the front of the subject P is 90 °, the strobes 6 obliquely left front and right forward of the subject P are installed in a range of 30 ° to 60 ° and 120 ° to 150 °. Further, instead of directly irradiating the subject P with the light from the strobe 6, reflected light from the inner wall or entrance curtain of the print production apparatus may be irradiated.

  In the above embodiment, the cutout unit 22 cuts out the person image from the shot image. However, before the cutout process, the shot image may be resized (reduced). When the imaging device 2 generates a captured image with a high number of pixels, it takes time to perform image processing such as human image clipping processing or color conversion processing on the captured image. Image processing can be speeded up by reducing the captured image. This resizing process can be performed by the resizing unit 25.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Arithmetic control apparatus 2 Imaging device 3 Touch panel 5 Printer 6 Strobe 11 CPU
12 main memory 13 disk device 14 input / output unit 15 bus 16 image processing program 17 database 21 selection unit 22 clipping unit 23 color conversion unit 24 composition unit 25 resizing unit

Claims (6)

A photographing device for photographing a subject and generating a photographed image;
A cutout unit for cutting out a human image from the captured image;
A color conversion unit that performs color conversion processing on the person image cut out by the cutout unit;
A combining unit that combines a background image and a color-converted person image to create a combined image;
A resizing unit for resizing the composite image to generate a print image and a preview image;
A display unit for displaying the preview image;
A printer that prints and outputs the print image on a print;
With
The photographing device performs photographing so that the amount of brightness data of the photographed image that increases the color difference between the person image and the background color is increased ,
The color conversion unit performs lightness conversion on the person image to increase the lightness. A storage unit for storing a plurality of background images;
An instruction receiving unit for receiving an instruction to select a background image;
Further comprising
The display unit displays a plurality of background images,
The printed matter production according to claim 1, wherein the composition unit creates a composite image by combining the background image selected and instructed via the instruction receiving unit and the color-converted person image. apparatus. Printed matter manufacturing apparatus according to any one of claims 1 to 2, characterized by further comprising a skin-beautifying processing unit that performs beautiful skin processing on the person image. Printed matter manufacturing apparatus according to any one of claims 1 to 3, characterized in that the imaging device further comprises a plurality of light irradiation part for irradiating light to the person to be photographed when taking a person to be photographed. The instruction receiving unit and the display unit is printed matter manufacturing apparatus according to any one of claims 1 to 4, characterized in that a touch panel. Photographing the subject and generating a photographed image;
Cutting out a human image from the captured image;
Applying color conversion processing to the person image cut out by the step of cutting out the person image;
Creating a composite image by combining the background image and the color-converted person image;
Resizing the composite image to generate a print image and a preview image;
Displaying the preview image;
Printing the image for printing on a printed matter and outputting it;
With
In the step of generating the photographed image, photographing is performed so as to increase the amount of brightness data of the photographed image that increases the color difference between the person image and the background color ,
In the step of performing the color conversion process, a printed matter preparation method in which brightness conversion is performed on the person image to increase brightness.