JP2006279458A - Image photographing apparatus, image photographing method, image photographing program, and recording medium - Google Patents

Abstract

Information about a lens used at the time of photographing is added to image data.
A digital camera includes a lens unit that is detachably attached to a main body, a hardware key that is detachably attached to the main body, and that records information relating to the lens, and a lens unit. 102 or information for performing image processing according to the characteristics of the lens unit 102 on attribute information of image data captured using the lens unit 102, and a control unit 201 that acquires information about the lens unit 102 from the hardware key 103 And an image processing unit 215 for adding information regarding the lens unit 102 acquired by the control unit 201.
[Selection] Figure 2

Description

  The present invention relates to an image capturing device that captures image data, an image capturing method, an image capturing program, and a recording medium.

  Conventionally, in a single-lens reflex camera in which a lens can be exchanged, information (hereinafter referred to as lens information) relating to the type and aperture value of a lens used at the time of taking a photograph is important data indicating the condition at the time of taking the photograph. Lens information is recorded by a photographer who fills in a sheet of paper in a silver salt single-lens reflex camera.

  Some digital single-lens reflex cameras that have been widely used in recent years have lens information recorded on an interchangeable lens (see, for example, Patent Document 1 below). When such an interchangeable lens is used, lens information can be acquired from a connection portion with the lens at the time of taking a photograph and can be added to the data of the photographed photograph.

JP 2003-131282 A

  However, according to the above-described conventional technology, there is a problem that lens information cannot be added to image data when a lens for a silver salt single-lens reflex camera is attached to a digital single-lens reflex camera. In digital single-lens reflex cameras, lenses for silver salt type single-lens reflex cameras that have been used in the past can also be used, but since lens information is not recorded on the lenses for silver salt type single-lens reflex cameras, The user must record lens information on paper or the like as in the past.

  The present invention provides an image photographing apparatus, an image photographing method, an image photographing program, and a recording medium that can easily add lens information to image data of a photograph taken in order to solve the above-described problems caused by the prior art. For the purpose.

  In order to solve the above-described problems and achieve the object, an image capturing apparatus according to the present invention records a lens unit that is detachable from the main body, and is detachable from the main body, and records information about the lens unit. Image processing according to the characteristics of the lens unit, the recording unit to acquire, the acquisition unit for acquiring information about the lens unit from the lens unit or the recording medium, and the attribute information of the image data photographed using the lens unit And adding means for adding information relating to the lens unit acquired by the acquiring means as information for performing the above.

  In this case, in an image capturing apparatus having a lens unit that can be attached to and detached from the main body, information relating to the lens unit used for capturing image data is acquired from the lens unit or the recording medium and added to the attribute information of the image data. For this reason, it is possible to perform image processing according to the characteristics of the lens unit using the information regarding the lens unit used for photographing.

  In addition, when the information about the lens unit can be acquired from the lens unit, the acquisition unit acquires the information about the lens unit from the lens unit when the lens unit is attached to the main body, and the lens unit If the information on the lens unit cannot be acquired from the above, the information on the lens unit may be acquired from the recording medium when the lens unit is mounted on the main body.

  In this case, when lens information is not recorded in the lens unit, the lens information is acquired from the recording medium and added to the attribute information of the image data. For this reason, even when a lens unit that does not record lens information is used, the lens information can be added to the attribute information of the image data.

  Moreover, it is good also as a display means which displays the information regarding the said lens part acquired by the said acquisition means.

  In this case, information on the lens unit acquired by the acquisition unit is displayed on the display unit. For this reason, it is possible to make the user check whether the information related to the lens portion added to the attribute information of the image data is correct.

  In addition, the acquisition unit may acquire at least one of a focal length, a manufacturer, and a model number of the lens unit as information on the lens unit.

  In this case, it is possible to perform image processing according to the characteristics of the lens unit based on at least one of the focal length of the lens unit, the manufacturer, and the model number.

  The recording medium records information on a plurality of types of the lens units, and the acquisition unit is attached to the main body among the information on the plurality of types of the lens units recorded on the recording medium. Information on the lens unit corresponding to the lens unit may be acquired.

  In this case, information on the lens unit corresponding to the lens unit mounted on the main body is acquired from information on a plurality of types of lens units recorded on the recording medium. For this reason, the information regarding a lens part can be added to the attribute information of the image data image | photographed using several types of lens parts with one recording medium.

  In addition to the information about the lens unit, the adding unit may add information about device settings at the time of shooting the image data to the attribute information of the image data.

  In this case, in performing image processing, in addition to information regarding the lens unit, information regarding device settings at the time of capturing image data can be considered.

  The adding unit may add at least one of a lens aperture value, a shutter speed, and an exposure value to the attribute information of the image data as information relating to the apparatus setting.

  In this case, in performing image processing, in addition to information on the lens unit, at least one of a lens aperture value, a shutter speed, and an exposure value can be considered.

  In addition, the image photographing method according to the present invention obtains information related to the lens unit from a lens unit that is detachable from the main body or a recording medium that is detachable from the main body and records information related to the lens unit. A step of adding information relating to the lens unit acquired in the acquisition step as information for performing image processing according to characteristics of the lens unit to attribute information of image data captured using the lens unit And a process.

  In this case, information relating to the lens unit that can be attached to and detached from the main body used for capturing the image data is acquired from the lens unit or the recording medium and added to the attribute information of the image data. For this reason, it is possible to perform image processing according to the characteristics of the lens unit using the information regarding the lens unit used for photographing.

  An image shooting program according to the present invention causes a computer to execute the above-described image shooting method.

  In this case, information relating to the lens unit that can be attached to and detached from the main body used for capturing the image data is acquired from the lens unit or the recording medium and added to the attribute information of the image data. For this reason, it is possible to perform image processing according to the characteristics of the lens unit using the information regarding the lens unit used for photographing.

  Further, the above-described image shooting program can be recorded on a computer-readable recording medium.

  Exemplary embodiments of an image capturing device, an image capturing method, an image capturing program, and a recording medium according to the present invention will be described below in detail with reference to the accompanying drawings.

(Embodiment)
(Connection equipment configuration of the image capturing device)
FIG. 1 is a diagram illustrating a configuration of connected devices of the image capturing apparatus according to the embodiment. The image capturing apparatus according to the present embodiment is realized by the digital camera 100 and the hardware key 103 (103a to 103c). Further, the PC 111 and the printer 112 acquire image data of an image captured by the image capturing apparatus, and perform processing / printing processing of the image data.

  The digital camera 100 is a digital single-lens reflex camera in which a recording portion of a conventional single-lens reflex camera is replaced with a combination of electronic circuits such as an image pickup device and a memory, and includes a main body 101 and lens units 102 (102a to 102c). . The main body unit 101 has a mechanism for converting light incident from the lens unit 102 into image data. The lens unit 102 includes various types such as a fish-eye lens, a super telephoto lens, and a macro lens in addition to a standard, wide-angle, and telephoto lens. The user can exchange the lens unit 102 according to the purpose and subject.

  The lens unit 102 can be used by being attached to another single-lens reflex camera, and a lens for a silver salt single-lens reflex camera can be used as the lens unit 102. In addition, there is a lens unit 102 that records lens information indicating the focal length, manufacturer name, model number, and the like of the lens. When the lens information is recorded in the lens unit 102, the main body unit 101 reads the lens information from the contact point with the lens unit 102 and adds the lens information to the image data of the photographed photograph. The lens information read at this time becomes data indicating the condition at the time of photographing, and is used for correction processing in the PC 111.

  On the other hand, there is a lens that does not have lens information among lenses used as the lens unit 102. In such a case, it is not possible to perform correction in consideration of lens characteristics in the PC 111, and the image quality intended by the user cannot be realized. In particular, the lens of the silver salt type single-lens reflex camera is not supposed to perform such correction and has no lens information. Therefore, when a lens that does not have lens information is used as the lens unit 102, the lens information is acquired by a hardware key 103 described later, and the above correction is performed.

  The digital camera 100 is provided with an opening 101a, and a hardware key 103 described later can be attached and detached. The digital camera 100 is connected to a PC 111 and a printer 112, which will be described later, via a cable or the like, and outputs image data of a photographed image to the PC 111 and the printer 112 (arrows A and B in the figure). In addition, a liquid crystal monitor (not shown) is provided on the back surface of the digital camera 100 so that a photographed image can be browsed and settings can be confirmed.

  The hardware key 103 (103a to 103c) records lens information of a lens that does not have the setting information recording unit 302 (see FIG. 3) in the main body. There are a plurality of hardware keys 103 (hardware keys 103a to 103c), and each hardware key 103 stores lens information of a different type of lens. Further, lens information of a plurality of types of lenses (for example, by manufacturer) may be recorded on one hardware key 103 so that the user can select the lens information. Thus, even when photographing using a plurality of lens units 102, lens information can be added by one hardware key 103.

  The user selects the hardware key 103 corresponding to the lens used as the lens unit 102 and attaches it to the digital camera 100. By providing one hardware key 103 corresponding to one type of lens, it is possible to intuitively understand which hardware key 103 should be selected. Further, lens information of a desired type of lens unit 102 can be added only by inserting the hardware key 103 without causing the user to perform complicated processing such as operation of the operation unit 212. The hardware keys 103 are labeled, and each hardware key 103 displays the name of a lens for recording lens information. The user selects a hardware key 103 for recording desired lens information from the label display.

  The PC 111 performs various types of image processing on image data captured by the digital camera 100 by executing an image processing application. There are various types of image processing performed by the PC 111. Especially when lens information is added to the image data, a lens correction parameter is set based on the lens information, and peripherals according to the lens characteristics of each lens are set. Light amount correction and distortion correction (hereinafter referred to as lens correction) are performed.

  In particular, the lens of the silver salt single-lens reflex camera does not take into consideration the properties of the image sensor. For this reason, when it is attached to the digital camera 100, the image quality at the corners where light is likely to strike obliquely may deteriorate, or the light may diffusely reflect within the lens, resulting in a decrease in image contrast. This is because there is no problem even if the light is oblique to the surface of the film if it is a film for a silver salt camera, but there is a difference in characteristics that the image sensor needs to shine light perpendicular to the surface of the image sensor. Because.

  The exchange of image data between the PC 111 and the digital camera 100 may be performed via a recording medium such as a memory card in addition to directly connecting both devices via an interface such as USB (arrow A in the figure). In that case, the recording medium is inserted into the opening 111 a provided in the main body of the PC 111 to read / write data. The output destination of the image data processed by the PC 111 may be a recording medium inserted into the opening 111a, the digital camera 100, or another device (not shown) connected to the network.

  The PC 111 is connected to the printer 112 by a cable or the like (arrow C in the figure). The PC 111 outputs the processed image data to the printer 112, and prints out the image data.

  The printer 112 prints out the image data image-processed by the PC 111. The printer 112 is also directly connected to the digital camera 100 via a cable or the like (arrow B in the figure), and can print image data taken by the digital camera 100. In addition, a recording medium reading unit may be provided in the printer 112 so that image data captured by the digital camera 100 is printed out via the recording medium.

(Functional configuration of digital camera 100 and hardware key 103)
FIG. 2 is a block diagram illustrating a functional configuration of the digital camera. As described above, the digital camera 100 includes the main body unit 101 and the lens unit 102. The main body unit 101 and the lens unit 102 are connected at the connection unit 200. On the main body part 101 side of the connection part 200, a configuration capable of detecting attachment / detachment of the lens part 102 is provided.

  The main body unit 101 includes a control unit 201, a main body photographing unit 211, an operation unit 212, a display unit 213, a setting information reading unit 214, an image processing unit 215, an image recording unit 216, an output unit 217, and a lens information reading unit 218. Is done. The lens unit 102 includes a lens side photographing unit 221 and a lens information recording unit 222.

  First, the configuration of the main body 101 will be described. The control unit 201 performs control processing for the entire digital camera 100. The main body side photographing unit 211 includes an optical element, generates image data from light incident from a lens side photographing unit 221 described later, and outputs the data as digital data. At this time, data output from the main body side photographing unit 211 is called RAW data, and is obtained by digitizing an electric signal obtained from the photographing element as it is.

  The operation unit 212 includes operation buttons, a touch panel, and the like, and is used for operation of the digital camera 100 by the user. Items operated by the operation unit 212 include, for example, setting of a shooting mode, viewing / deleting a shot image, shooting timing (shutter), output data format, and the like. Further, the operation unit 212 may be provided integrally with the digital camera 100, or may be configured to be operated separately from the digital camera 100 like a remote controller.

  The display unit 213 is configured by a liquid crystal display or the like, and displays an image captured by the digital camera 100 and device settings of the digital camera 100. Information displayed on the display unit 213 can be operated by the operation unit 212.

  The setting information reading unit 214 reads lens information recorded by the hardware key 103. More specifically, the setting information recording unit 302 (see FIG. 3) of the hardware key 103 inserted from the opening 101a is accessed, and the lens information is read from the setting information recording unit 302.

  The image processing unit 215 performs image processing on the image data output from the main body side photographing unit 211. Image processing performed by the image processing unit 215 is in accordance with the shooting mode and output data format set by the operation unit 212. Further, when the lens information is read by the lens information reading unit 218 or the setting information reading unit 214, the image processing unit 215 adds the read lens information to the tag of the image data.

  In addition to the lens information, the image processing unit 215 may add setting information at the time of image data shooting to the tag of the image data. The setting information at the time of image data shooting is, for example, a lens aperture value, shutter speed, exposure value, and the like.

  The image recording unit 216 records the image data processed by the image processing unit 215. Note that the image recording unit 216 may be provided integrally with the digital camera 100 or may be detachable from the digital camera 100 such as a memory card. With such a configuration, image data captured by the digital camera 100 can be transferred by providing a reading unit in the PC 111 or the printer 112. Moreover, you may make it provide both the thing provided integrally with the digital camera 100, and the thing removable from the digital camera 100. FIG.

  Further, for example, a configuration corresponding to the image recording unit 216 may be provided in the hardware key 103 and image data captured by the digital camera 100 may be recorded. In this case, the digital camera 100 is in a state in which the hardware key 103 is inserted, and photographing is performed with a lens of the type in which the inserted hardware key 103 records lens information. For this reason, each hardware key 103 records an image taken with a lens corresponding to the lens information of each hardware key 103. As a result, the user can manage the image data for each type of taking lens, and the image data management can be simplified.

  The output unit 217 outputs the image data recorded in the image recording unit 216 to the PC 111, the printer 112, or the like. The image data output from the output unit 217 has an output data format set via the operation unit 212. If the image recording unit 216 is detachable from the digital camera 100, the image recording unit 216 may be attached to the PC 111 or the printer 112 to exchange image data.

  For example, JPEG data or RAW data can be selected as the format of the image data output by the output unit 217 (hereinafter referred to as output data format). As described above, the image data output from the main body side photographing unit 211 is RAW data. However, when JPEG data is selected as the output data format, the image processing unit 215 performs image processing to convert the JPEG data into JPEG data. Convert. Further, the image processing unit 215 may add a tag and a thumbnail to the JPEG file and output the file as an Exif file.

  The Exif file output from the output unit 217 is obtained by adding a tag and a thumbnail to JPEG data (hereinafter referred to as “main data”) of a captured image, and considers mutual use of image data among a plurality of devices. The tag records image data attribute information such as the number of pixels of the image, compression mode, camera model name, aperture value, shutter speed, and shooting date and time. Using this information, the user can further utilize the image data, such as feeding back the exposure condition at the time of shooting to the shooting, or referring to image selection at the time of printing.

  The thumbnail is a reduced image for list heading obtained by reducing this data, and is used to display a list of image files at high speed on the display unit 213 or the image processing application of the PC 111.

  In addition to this, the digital camera 100 can also store and output image data using RAW data output from the main body side photographing unit 211. Even if the RAW data is output to the PC 111, it cannot be opened with a general image processing application as it is, nor can it be output to the printer 112 and printed. In order to handle RAW data, it is necessary to convert it into JPEG data using dedicated image processing software of the digital camera 100 or the like. However, if image data is stored as RAW data, the image data can be freely processed later as needed. For example, image data can be used on a home page by converting it to JPEG data with a small capacity, and when printing it can be converted to TIFF data that does not deteriorate the image.

  RAW data has a larger capacity than JPEG data, but image processing by the image processing unit 215 is not performed, and there is no data loss such as color information. For this reason, it is easy to process image data by the user, and it is mainly used by users who require high image quality, such as professionals and high amateurs. A tag similar to the Exif file can be added to the RAW data output by the output unit 217. As in the case of the Exif file, the user can further utilize the image data by using these pieces of information.

  The lens information reading unit 218 reads lens information recorded by the lens unit 102. More specifically, the lens information recording unit 222 of the lens unit 102 connected to the connection unit 200 is accessed, and the lens information is read from the lens information recording unit 222.

  Next, the configuration of the lens unit 102 will be described. The lens side photographing unit 221 is provided with a lens and various adjustment mechanisms such as a focus and an aperture. The light condensed by the lens enters the main body side photographing unit 211. The lens information recording unit 222 records lens information. In the case of a lens that does not have lens information, such as a silver salt single-lens reflex camera, the lens information recording unit 222 is not provided, and is configured only by the lens side photographing unit 221.

  FIG. 3 is a block diagram showing a functional configuration of the hardware key. The hardware key 103 includes an input / output unit 301 and a setting information recording unit 302. The input / output unit 301 inputs / outputs data to / from the digital camera 100. As described above, the setting information recording unit 302 records lens information of lenses that do not have the lens information recording unit 222. There are a plurality of hardware keys 103 (hardware keys 103a to 103c), and each hardware key 103 stores lens information of different types of lenses.

  In addition, a configuration corresponding to the image recording unit 216 of the digital camera 100 may be provided in the hardware key 103 so that image data captured by the digital camera 100 is recorded. As a result, image data is recorded for each lens used for photographing, and the user can easily manage the image data.

(Processing of digital camera 100 and PC 111)
Next, a description will be given of a procedure at the time of image capturing by the digital camera 100 and a lens correction process by the PC 111. The digital camera 100 takes a picture while changing the lens unit 102 and converts it into image data. Image data obtained by photographing is subjected to lens correction by the PC 111. Hereinafter, processing of the digital camera 100 at the time of lens replacement and photography and processing of the PC 111 at the time of lens correction will be described.

  FIG. 4 is a flowchart showing processing of the digital camera at the time of lens replacement. First, the control unit 201 determines whether the lens unit 102 is attached to the connection unit 200 (step S401). When the lens unit 102 is attached (step S401: Yes), it is determined whether lens information is recorded in the attached lens unit 102 (step S402). When the lens unit 102 cannot be attached (step S401: No), the standby is continued (step S401: No loop).

  In step S402, when lens information is recorded (step S402: Yes), the process proceeds to step S405. On the other hand, when lens information is not recorded (step S402: No), it is determined whether the hardware key 103 is inserted into the opening 101a (step S403). If the hardware key 103 is inserted (step S403: Yes), it is determined whether lens information is recorded on the inserted hardware key 103 (step S404).

  If lens information is recorded (step S404: Yes), the lens information is read (step S405). On the other hand, when the hardware key 103 is not inserted (step S403: No), or when lens information is not recorded on the inserted hardware key 103 (step S404: No), no particular processing is performed. This flowchart is terminated.

  When the lens information is read in step S405, the control unit 201 causes the display unit 213 to display the read lens information (step S406). Then, the user is caused to determine whether the read lens information is correct lens information (step S407). The user determines whether the lens information displayed on the display unit 213 indicates the attached lens unit 102. Then, an operation for determining whether or not the lens information displayed in step S406 is correct lens information is performed via the operation unit 212.

  If it is determined that the lens information is correct (step S407: Yes), the lens information read in step S405 is set as the lens information (step S408), and the processing according to this flowchart is terminated. On the other hand, if the lens information is not correct (step S407: No), a message prompting the replacement of the hardware key 103 is displayed (step S409), and the processing according to this flowchart ends.

  Through the processing as described above, the digital camera 100 acquires lens information from the lens body or the hardware key 103 when the lens unit 102 is replaced. In addition, the user is confirmed whether the acquired lens information is correct so that erroneous information is not added to the image data.

  FIG. 5 is a flowchart showing processing of the digital camera at the time of photographing. When the user performs an operation for taking a picture and acquires image data (step S501: Yes), the control unit 201 determines whether lens information is set (step S502). If the lens information is set (step S502: Yes), the image processing unit 215 adds the lens information to the image data (step S503). The lens information is added by writing the lens information into each image data tag. At this time, setting information at the time of image data shooting, for example, lens aperture value, shutter speed, exposure value, etc. may be written. On the other hand, when the lens information is not set (step S502: No), the process proceeds to step S504.

  When the user's operation for taking a picture is finished (step S504: Yes), the processing according to this flowchart is finished. On the other hand, when the user's operation does not end (step S504: No), the process returns to step S501 and the subsequent processing is repeated. Through the processing as described above, the digital camera 100 adds lens information to the image data of the photographed photograph. Image data captured by the digital camera 100 is corrected by the PC 111.

  FIG. 6 is a flowchart showing the procedure of lens correction processing by the PC. Note that the following processing is performed by an image processing application installed in the PC 111. First, the PC 111 determines whether lens information is added to the image data to be processed (step S601). When the lens information is included in the image data (step S601: Yes), the lens information is read (step S602), and the lens correction parameter is set based on the read lens information (step S603). Here, the lens correction parameter is an image correction value in consideration of the characteristics of each lens.

  Next, retouch processing or development processing is performed on the image data (step S604). The image processing application performs retouch processing when the image data is JPEG data, and performs development processing when the image data is RAW data. The retouching process and the development process are performed based on the lens correction parameter when the lens correction parameter is set.

  In step S604, when the retouch process or the development process based on the lens correction parameter is performed, the image application determines whether the lens correction parameter is clearly an invalid value from the processed image (step S605). An apparently incorrect value is a case where appropriate correction cannot be performed with the lens correction parameter, for example, the corrected image becomes more distorted than before correction.

  If the value is clearly invalid (step S605: Yes), the lens correction parameter is canceled (step S606), and the retouching process or the development process is performed without setting the lens correction parameter (step S607). The process according to the flowchart ends. If it is clearly not an illegal value (step S605: No), the process according to this flowchart is terminated without performing any particular process.

  On the other hand, if the lens data is not included in the image data in step S601 (step S601: No), the retouching process or the developing process is performed without setting the lens correction parameter (step S607), and the process according to this flowchart. Exit.

  As described above, according to the image photographing apparatus according to the embodiment, lens information is automatically added to image data even when a photograph is taken using a lens that does not record lens information. be able to. Thereby, management of image data photographed by the image photographing device can be facilitated.

  As described above, according to the image photographing apparatus according to the present embodiment, when the lens unit 102 that can be attached to and detached from the main body unit 101 is provided, the lens information of the lens unit 102 used for photographing image data is obtained. , Acquired from the lens unit 102 or the hardware key 103, and added to the attribute information (tag) of the image data. For this reason, it is possible to perform image processing according to the characteristics of the lens unit 102 on the PC 111 using the lens information of the lens unit 102 used for photographing.

  If no lens information is recorded in the lens unit 102, the lens information is acquired from the hardware key 103 and added to the attribute information of the image data. Therefore, even when the lens unit 102 that does not record lens information is used, the lens information can be added to the attribute information of the image data. Since the hardware key 103 is hardware corresponding to each lens unit 102, the lens information can be added to the tag of the image data without causing the user to perform complicated operations.

  In addition, by displaying the lens information on the display unit 213 on the display unit 213, the user can confirm whether the lens information added to the tag of the image data is correct. If a plurality of types of lens information are recorded on the hardware key 103, the lens information is added to the tag of the image data photographed using the plurality of types of lens units 102 by one hardware key 103. Can do.

  In addition, in addition to lens information, information related to device settings at the time of image data shooting, such as lens aperture value, shutter speed, and exposure value, is recorded in the image data tag. Further, it is possible to perform image correction with higher accuracy.

  The image capturing method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

The figure which shows the connection apparatus structure of the imaging device concerning embodiment. The block diagram which shows the functional structure of a digital camera. The block diagram which shows the functional structure of a hardware key. The flowchart which shows the process of the digital camera at the time of lens replacement | exchange. The flowchart which shows the process of the digital camera at the time of photography. The flowchart which shows the procedure of the lens correction process by PC.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 Digital camera, 101 Main body part, 101a opening part, 102 Lens part, 103a-103c Hardware key, 111 PC, 111a opening part, 112 Printer, 200 Connection part, 201 Control part, 211 Main body side imaging part, 212 Operation part 213 Display unit 214 Setting information reading unit 215 Image processing unit 216 Image recording unit 217 Output unit 218 Lens information reading unit 221 Lens side photographing unit 222 Lens information recording unit 301 Input / output unit 302 Lens Information recording section

Claims (10)

A lens part that is detachable from the main body;
A recording medium that is detachable from the main body and records information about the lens unit;
Obtaining means for obtaining information on the lens unit from the lens unit or the recording medium;
Adding means for adding information on the lens unit acquired by the acquiring unit as information for performing image processing according to characteristics of the lens unit to attribute information of image data captured using the lens unit; ,
An image photographing apparatus comprising:   When the information about the lens unit can be acquired from the lens unit, the acquisition unit acquires the information about the lens unit from the lens unit when the lens unit is attached to the main body, and the information from the lens unit 2. The image capturing apparatus according to claim 1, wherein when information regarding a lens unit cannot be acquired, information regarding the lens unit is acquired from the recording medium when the lens unit is mounted on the main body.   The image capturing apparatus according to claim 1, further comprising a display unit that displays information regarding the lens unit acquired by the acquiring unit.   The said acquisition means acquires at least any one among the focal distance of the said lens part, a manufacturer, and a model number as information regarding the said lens part, The Claim 1 characterized by the above-mentioned. Image shooting device. The recording medium records information on a plurality of types of the lens units,
The acquisition unit acquires information on the lens unit corresponding to the lens unit mounted on the main body from among the information on the plurality of types of the lens units recorded on the recording medium. The image photographing device according to any one of claims 1 to 4.   6. The adding unit according to claim 1, wherein in addition to information relating to the lens unit, information relating to apparatus settings at the time of photographing the image data is added to attribute information of the image data. The image photographing device described in 1.   The image according to claim 6, wherein the adding unit adds at least one of a lens aperture value, a shutter speed, and an exposure value to the attribute information of the image data as information relating to the device setting. Shooting device. An acquisition step of acquiring information about the lens unit from a lens unit that is detachable from the main body, or a recording medium that is detachable from the main body and records information about the lens unit;
An addition step of adding information on the lens unit acquired by the acquisition step as information for performing image processing according to the characteristics of the lens unit to the attribute information of image data captured using the lens unit;
An image photographing method comprising:   An image photographing program for causing a computer to execute the image photographing method according to claim 8.   A computer-readable recording medium on which the image photographing program according to claim 9 is recorded.

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