JP4560422B2 - Imaging apparatus and control method thereof - Google Patents

Description

  The present invention relates to an imaging apparatus such as a digital still camera that generates an image signal using an imaging element and records the image signal on a recording medium, and a control method thereof.

  Conventionally, an imaging apparatus such as a digital still camera that records an image using an imaging element such as a CCD sensor or a CMOS sensor has been widely used. In such an imaging apparatus, there are two typical modes for recording a captured image: a RAW image recording mode and a JPEG image recording mode.

  In the RAW image recording mode, captured image data (raw image data obtained by converting electrical signals output from the image sensor into digital data) is subjected to image processing (hereinafter referred to as development processing) such as white balance adjustment (WB) and gamma adjustment. This is a mode in which recording is performed after compression according to a reversible compression method (lossless compression method) without being performed, or recording is performed without compression. The JPEG image recording mode is a mode in which the captured image data is developed and then compressed according to a JPEG compression method (see ISO / IEC 10918-1), which is a lossy compression method.

  An image in the JPEG image recording mode (JPEG image) is a compressed image obtained by performing the development process. For example, a liquid crystal monitor or the like generally provided in a digital still camera or the like by performing an expansion process by JPEG decoding. Can be displayed on a display device or printed by a printer. On the other hand, unlike a JPEG image, an image in the RAW image recording mode (RAW image) is compressed image data that has not been subjected to development processing. Therefore, in order to perform display or printing, development processing is performed after expansion. There is a need to do. That is, RAW images take longer to process during playback than JPEG images.

  For this reason, when browsing an image recorded in the RAW image recording mode with a digital still camera, it takes time to switch the display image, and user convenience is reduced. In order to solve this problem, a method of generating a JPEG image for reproduction display (hereinafter referred to as a display JPEG image) during recording in the RAW image recording mode and recording it on a recording medium together with the RAW image is generally used. It has been adopted. Since the display JPEG image is intended for playback on a digital still camera, the resolution may be lower than that of a JPEG image recorded in the normal JPEG image recording mode (hereinafter referred to as a recording JPEG image), and the amount of data Can be reduced.

  In addition to the JPEG image recording mode in which only the JPEG image is recorded and the RAW image recording mode in which only the RAW image is recorded as a recording mode that can be generally selected by the user, a RAW image and a JPEG image can be recorded in one shooting operation. There is a simultaneous recording mode that records both. The simultaneous recording mode has a great merit for the user because the features of both the RAW image and the JPEG image can be utilized.

JP 2004-120116 A JP 2004-104601 A JP 2001-61067 A JP 11-261933 A

  However, in the conventional simultaneous recording mode, in order to generate two types of JPEG images having different resolutions, that is, a recording JPEG image and a display JPEG image in one shooting operation, it is necessary to perform development processing twice. There has been a problem that the time required for taking a picture increases.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide raw image data that is digital image data before development processing, and developed image data obtained by developing raw image data. In an imaging apparatus that records raw image data as image data for display when raw image data is recorded, the development processing time for recording both the raw image data and the developed image data is reduced. It is an object of the present invention to provide an imaging apparatus capable of performing the above and a control method thereof.

The above-described object is to provide an imaging unit that generates raw image data using an imaging device and an A / D converter, a development processing unit that performs development processing on the raw image data, and outputs the processed image data. A raw image data file and a developed image data file obtained by performing development processing on the raw image data can be recorded as a captured image file. If a raw image data file is recorded, the corresponding developed processing is completed. An image pickup apparatus having recording means for recording image data as image data for display in a raw image data file, wherein both the raw image data file and the developed image data file are captured at one time. when recording by the recording means, when generating the display image data using the developed image data to be recorded in a file of the development processed image data Moni, the resolution of the display image data when recording both single file in the file and the development processed image data of the raw image data in shooting, to record only one file of the raw image data in shooting This is achieved by an imaging device characterized in that the resolution is higher than the resolution of the display image data.

In addition, the above-described objects are an imaging process for generating raw image data using an image sensor and an A / D converter, and a developing process for performing development processing on the raw image data and outputting the processed image data. The raw image data file and the developed image data file that has undergone development processing on the raw image data can be recorded as a captured image file, and when the raw image data file is recorded, the corresponding development processing Control method of an image pickup apparatus having a recording step of recording the completed image data as display image data in a raw image data file , wherein the recording step is a single shooting, and the raw image data file and development When both processed image data files are recorded, the image data for display is displayed using the developed image data recorded in the developed image data file. To generate a data, one of the raw image data files in photographing, the resolution of the display image data when recording both files of the development processed image data, the raw image data in one captured file It is also achieved by a control method for an image pickup apparatus characterized in that the resolution is higher than the resolution of display image data when only recording is performed.

  With such a configuration, according to the present invention, for example, in the simultaneous recording mode in which both the RAW image and the JPEG image are recorded, the time required for the development processing is reduced in the imaging device that writes the display JPEG image to the RAW image file. It becomes possible.

<< First Embodiment >>
Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration example of a main part of a digital still camera as an example of an imaging apparatus according to an embodiment of the present invention.

  The optical system of the imaging apparatus includes a photographing lens 101 including a plurality of lens groups, a diaphragm 102, and a shutter 103. The light beam incident through the optical system is provided with a color filter and is formed on the image sensor 104 that converts an optical image into an electrical signal. The A / D converter 105 converts the electrical signal output from the image sensor 104 into digital data. The timing generation circuit 106 supplies a clock signal and a control signal to the image sensor 104 and the A / D converter 105. The timing generation circuit 106 is controlled by a memory control circuit 110 and a system control unit 125 described later.

  The image processing circuit 107 performs predetermined pixel interpolation processing, development processing, and the like on the data from the A / D converter 105 or the image data from the memory control circuit 110. The memory control circuit 110 controls the A / D converter 105, the timing generation circuit 106, the image processing circuit 107, the image display memory 111, the memory 112, and the compression / decompression circuit 113.

  Output data of the A / D converter 105 is written into the image display memory 111 or the memory 112 via both the image processing circuit 107 and the memory control circuit 110 or only the memory control circuit 110. The display image data written in the image display memory 111 is displayed on the image display unit 109 such as an LCD by the image display circuit 108.

  The memory 112 includes (1) an area as an imaging buffer for temporarily storing captured image data, and (2) processing data and automatic focus control (AF) / AF used when the image processing circuit 107 develops the image data. An area as a work buffer for storing the results of calculation of automatic exposure control (AE) / WB and other temporarily used data. (3) As a buffer for storing compressed image data compressed by the compression / decompression circuit 113. And a sufficient storage capacity for storing a predetermined number of still images and a moving image for a predetermined time. This makes it possible to write a large amount of images to the memory 112 at high speed even in the case of continuous shooting where a plurality of still images are continuously shot.

  The compression / decompression circuit 113 reads an image stored in the memory 112, performs a well-known data compression process or expansion process using adaptive discrete cosine transform (ADCT) or the like, and writes the processed data to the memory 112. In this embodiment, it is assumed that the compression / decompression circuit 113 performs compression encoding and decoding processing using the JPEG compression method.

  The shutter control circuit 114 controls the shutter 103, and the aperture control circuit 115 controls the aperture 102. The distance measurement control circuit 116 controls focusing of the photographic lens 101. A strobe control circuit 117 controls light emission of a strobe (not shown). The system control unit 125 is a CPU that controls each component of the digital camera, for example, and includes various programs such as a program for performing an imaging process, a program for performing a development process, and a program for recording image data on a recording medium in a ROM (not illustrated). In addition, various programs such as an OS that realizes and executes a multitask configuration of the above program are recorded.

Next, each operation member will be described.
The mode dial 118, the release switches 119 and 120, the menu operation switch 121, and the power control switch 122 constitute operation means for inputting various operation instructions to the system control circuit 125, and include buttons, switches, dials, touch panels, and line-of-sight detection. It is composed of one or a plurality of combinations such as pointing and voice recognition devices.

Here, these operation means will be specifically described.
The mode dial switch 118 is a mode setting switch for appropriately setting the exposure condition at the time of shooting in the camera according to the subject, and includes an automatic shooting mode, a program shooting mode, a shutter speed priority shooting mode, an aperture priority shooting mode, Each exposure control mode such as a manual shooting mode, a portrait shooting mode, a landscape shooting mode, a close-up shooting mode, a sports shooting mode, and a night scene shooting mode can be switched and set. A release switch 119 (hereinafter referred to as a switch SW1) is turned on when a release button (not shown) is half-pressed, and instructs to start a shooting preparation operation such as AF (autofocus) processing, AE (automatic exposure) processing.

  A release switch 120 (hereinafter referred to as switch SW2) is a switch that is turned on when a release button (not shown) is fully pressed. When the switch SW2 is turned on, a signal read from the image sensor 104 is written to the memory 112 via the A / D converter 105 and the memory control circuit 110, and image processing is performed on the raw image data using the image processing circuit 107. The start of a series of processing operations such as development processing such as white balance adjustment and recording processing for reading image data from the memory 112 and writing the image data to the recording medium 1A is instructed. Details of specific image data processing will be described later.

  The menu operation switch 121 includes a combination of a menu key (not shown), a set key, and a cross key. The user can use the menu operation switch 121 to change various settings such as camera shooting conditions and development processing conditions while looking at the setting menu displayed on the image display unit 109.

  The power supply control circuit 122 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like. The power supply control circuit 122 detects the presence / absence of a battery, the type of battery, and the remaining battery level, controls the DC-DC converter based on the detection result and an instruction from the system control unit 125, and requires a necessary voltage. It is supplied to each part including the recording medium for a period. Reference numeral 123 denotes an interface (I / F) with a recording medium such as a memory card or hard disk, and reference numeral 124 denotes a connector for connecting to a recording medium such as a memory card or hard disk.

  In the present embodiment, it is assumed that the system has one interface 123 and a connector 124 for attaching a recording medium. Of course, the interface and connector for attaching the recording medium may have a plurality of systems. Moreover, it is good also as a structure provided with combining the interface and connector of a different standard.

The interface and connector may be configured using a PCMCIA card, a CF (Compact Flash (registered trademark)) card, or the like that conforms to a standard.
A recording medium 1A such as a memory card or a hard disk includes a recording unit 1A3 including a semiconductor memory or a magnetic disk, an interface (I / F) 1A1 with a digital camera, and a connector 1A2.

Next, a series of operations from shooting to recording image data on a recording medium in the digital still camera of this embodiment will be described using the flowcharts of FIGS.
FIG. 2 is a flowchart for explaining the overall processing flow from shooting to recording of image data on a recording medium.

  In S201, it is detected whether or not the switch SW1 is on (whether the release button has been pressed halfway). If the switch SW1 is on, the system control unit 125 performs a distance measurement process in S202 to focus the photographing lens 101 on the subject (AF), performs a photometry process in S203, and sets the result of the photographing. The aperture value and shutter speed are determined according to the mode. In the photometric process, flash shooting is set if necessary.

  Next, the system control unit 125 detects whether the switch SW2 is on (whether the release button has been fully pressed) (S204). If the switch SW2 is not on, the state of the switch SW1 is detected (S208), and the processes of S204 and S208 are repeated until the switch SW1 is turned off. If the switch SW1 is turned off, the process returns to S201.

  If the switch SW2 is turned on (S204), an imaging process is performed (S205). In the imaging process (S205), exposure control is performed and charge is stored in the imaging device, details of which will be described later. Then, the process proceeds to development processing / compression processing (S206). In the development processing / compression processing, development processing is performed based on preset development processing parameters. Details thereof will be described later. Then, the process proceeds to a recording process (S207). In the recording process, the image data that has been subjected to the development process and the compression process is written into the recording medium 1A3. Details thereof will be described later. In this way, a series of shooting operations are executed.

Next, details of the imaging process in S205 will be described using the flowchart of FIG.
First, the system control unit 125 secures an imaging buffer area in the memory 112 for temporarily storing imaging process image data (S301). Next, the system control unit 125 starts the exposure process by controlling the shutter control circuit 114 and the aperture control circuit 115 based on the photometric result calculated in step S203 (S302), and accumulates charges in the image sensor (S302). S303). When the exposure process ends (S304), the system control unit 125 reads out and outputs the charge accumulated for a predetermined time by the exposure from the image sensor 104. This analog signal is converted into digital data by the A / D converter 105, and then stored as image pickup processed image data (raw image data) in the image pickup buffer area secured in S301 via the memory control circuit 110 (S305). .

  Such an imaging process sequence is realized by the system control unit 125 executing the imaging process program recorded in the ROM (not shown) described above.

Next, the development processing / compression processing in S206 will be described using the flowchart of FIG.
In the present embodiment, it is assumed that either (1) RAW image recording mode or (2) simultaneous recording mode is selected as the recording mode. First, the system control unit 125 secures a RAW image buffer area in the memory 112 for temporarily storing RAW image data obtained by reversibly compressing the captured image data (S401). Next, lossless compression is performed on the captured image data, and the generated RAW image data is temporarily stored in the RAW image buffer (S402).

  In step S403, it is determined whether (1) the RAW image recording mode is selected as the recording mode. (1) When the RAW image recording mode is selected, an area of the display JPEG image buffer for temporarily storing the display JPEG image is secured in the memory 112 (S404). Then, the image processing circuit 107 and the compression / decompression circuit 113 are used to generate a display JPEG image with reduced resolution in accordance with the display device from the captured image data and store it in the display JPEG image buffer (S405). . Specifically, for example, the image processing circuit 107 performs a development process and a reduction process on the developed image data, and the compression / decompression circuit 113 performs a JPEG compression encoding on the reduced image, whereby a display JPEG image is obtained. Can be generated.

  On the other hand, if (2) the simultaneous recording mode is selected as the recording mode in step S403, a recording JPEG image buffer for temporarily storing the recording JPEG image is secured in the memory 112 (S407). Then, the image processing circuit 107 executes development processing on the image pickup processing image data, and the development processing image data is subjected to JPEG compression encoding by the compression / decompression circuit 113 to generate a recording JPEG image. The data is stored in the JPEG image buffer (S408).

  In step S406, since the development processing / compression processing of the JPEG image data necessary for recording is completed and the imaging processing image data is no longer necessary, the imaging buffer is released. Such development processing / compression processing is realized by the system control unit 125 executing the development processing / compression processing program recorded in the ROM (not shown) described above.

  FIG. 6 is a schematic diagram showing a buffer configuration at the time when the development processing / compression processing is completed. 61 is a buffer configuration in the RAW recording mode, and 62 is a buffer configuration in the simultaneous recording mode. As is apparent from the buffer configuration 62, since no JPEG image other than the recording JPEG image is generated in the simultaneous recording mode, the development processing for the display JPEG image and the display JPEG image buffer that were necessary in the past are provided. It becomes unnecessary. Therefore, the total processing time required for the development processing / compression processing can be shortened and the memory capacity can be reduced, which contributes to, for example, an increase in the number of images that can be continuously shot.

Next, recording processing in the digital still camera of the present embodiment will be described using the flowchart of FIG.
First, the system control unit 125 determines whether (1) the RAW image recording mode is selected as the recording mode (S501). If the RAW image recording mode is selected, RAW recording is performed (S502). The RAW recording process will be described in detail with reference to FIG. FIG. 7 is a schematic diagram showing the relationship between the buffer configuration and the file configuration during RAW recording, in which 71 indicates the configuration of the buffer memory and 72 indicates the configuration of the RAW image file. As shown by the RAW image file 72, in addition to the header information, the RAW image file stores RAW image data and a display JPEG image as image data.

  The system control unit 125 generates various predetermined header information and writes it in the header area of the RAW image file. Next, the RAW image temporarily stored in the RAW image buffer of the buffer 71 and the display JPEG image temporarily stored in the display JPEG image buffer are sequentially read out, and the RAW image data area and display for display in the RAW image file are read. Each is written into the JPEG image data area. The above is the processing at the time of RAW recording. When the RAW recording is completed, the display JPEG image buffer is released (S503).

  On the other hand, if the simultaneous recording mode is selected as the recording mode in S501, simultaneous recording is performed (S505). The simultaneous recording process will be described in detail with reference to FIG. FIG. 8 is a schematic diagram showing the relationship between the buffer configuration and the file configuration at the time of simultaneous recording. 81 shows the configuration of the buffer memory, 82 shows the configuration of the RAW image file, and 83 shows the configuration of the JPEG image file.

  As in the RAW recording mode, the RAW image file 82 stores header information, RAW image data, and a display JPEG image. The JPEG image file 83 stores header information and a recording JPEG image.

  For example, the system control unit 125 first records the JPEG image file 83. Various predetermined header information is generated and written in the header information area of the JPEG image file 83. Then, the recording JPEG image data temporarily stored in the recording JPEG image buffer of the buffer 81 is written in the recording JPEG image data area.

  Next, the system control unit 125 records the RAW image file 82. Various predetermined header information is generated and written in the header area of the RAW image file 82. Next, the RAW image temporarily stored in the RAW image buffer of the buffer 81 and the recording JPEG image temporarily stored in the recording JPEG image buffer are sequentially read out, and the RAW image data area and display for display in the RAW image file are read. Each is written into the JPEG image data area. That is, the recording JPEG image temporarily stored in the buffer 81 is recorded in the JPEG image file 83 and also recorded in the RAW image file 82 as a display JPEG image. The above is the processing at the time of simultaneous recording.

  When the simultaneous recording is completed, the recording JPEG image buffer is released (S506). Finally, the RAW image buffer is released (S504), and the recording process is terminated. Such a recording process is realized by the system control unit executing the recording process program recorded in the ROM (not shown) described above.

  As described above, according to the present embodiment, in the simultaneous recording mode in which both the RAW image and the JPEG image are recorded, the recording JPEG image is recorded as the display JPEG image in the RAW image file. For this reason, the development process for generating the JPEG image is only required once, and the time required for the development process conventionally required for generating the display JPEG image becomes unnecessary. Accordingly, the time until the next shooting can be performed can be shortened, which contributes to the improvement of the continuous shooting speed of the digital still camera.

  Further, according to the present embodiment, it is not necessary to secure the display JPEG image buffer on the memory in the simultaneous recording mode, so that the memory capacity can be saved. Therefore, it is possible to contribute to an increase in the number of continuously shootable images in a digital still camera in which the free space of the memory affects the number of continuously shootable images.

  When playing back a RAW image file generated according to this embodiment, the recording JPEG image data recorded as the display JPEG image data is decoded, and only the number of pixels necessary for display on the display device is used. Reproduction display may be performed.

<< Second Embodiment >>
In the first embodiment, the recording JPEG image is also written in the RAW image file as the display JPEG image in the simultaneous recording mode. In the present embodiment, a display JPEG image recorded in a RAW image file in the simultaneous recording mode is generated with a resolution lower than that of the recording JPEG image.

  Since the imaging apparatus according to the present embodiment can also be realized by a digital still camera having the same configuration as that of the first embodiment, a duplicate description is omitted.

  FIG. 9 is a flowchart showing processing steps different from those in the first embodiment in the development processing / compression processing in the present embodiment. As shown in FIG. 9, in this embodiment, the JPEG image generation processing steps (S407 and S408 in FIG. 4) in the simultaneous recording mode are different from those in the first embodiment.

  That is, in the simultaneous recording mode, the process proceeds from S403 to S407 ', and both the display JPEG image buffer and the recording JPEG image buffer are secured on the memory 112. In step S408 ', after the development processing is performed on the imaging processing image data stored in the imaging buffer area, both the display JPEG image and the recording JPEG image are generated. The recording JPEG image generation process can be performed in the same manner as in the first embodiment. On the other hand, a JPEG image for display is generated by generating a reduced image in which the resolution is reduced from the image data after development processing by the image processing circuit 107, and performing JPEG encoding on the reduced image by the compression / expansion circuit 113, Store in the JPEG image buffer for display.

  Then, in the simultaneous recording processing step in S505 of FIG. 5, as shown in FIG. 10, the image data read from the display JPEG image buffer is written in the display JPEG image data area of the RAW image file. The writing of other areas of the RAW image file and the writing process for the JPEG image file are the same as those in the first embodiment.

  As described above, also in the present embodiment, the development process necessary for generating the display JPEG image and the recording JPEG image is only once, and the time required for the development process can be shortened. Compared with the first embodiment, when a JPEG image for display is generated, a display JPEG image buffer is secured, a reduced image is generated, and JPEG encoding is newly required. The amount of JPEG image data for use can be reduced. Therefore, the writing time to the file and the processing load at the time of reproducing the display JPEG image are smaller in this embodiment.

  Which of the first embodiment and the second embodiment is used depends on the capacity of the memory 112 that secures the buffer area, the processing time until the generation of the image data to be written, the subsequent recording process, An appropriate selection can be made according to which of the processing times during reproduction has priority.

<< Other Embodiments >>
In the above-described embodiment, an example in which the present invention is applied to a digital still camera has been described. However, the present invention can be applied to any apparatus having an imaging function capable of simultaneously recording a RAW image and a JPEG image. is there.

  In the above-described embodiment, the RAW image recording mode is used as an example of a mode for recording raw image data not subjected to development processing, and the JPEG image recording mode is used as an example of a file mode for recording developed image data. explained. However, the present invention can be applied to other methods. In particular, whether compression encoding is performed on raw image data or developed image data is not directly related to the present invention, and compression may not be involved.

  A software program that realizes the functions of the above-described embodiments is supplied directly from a recording medium or to a system or apparatus having a computer that can execute the program using wired / wireless communication. The present invention includes a case where an equivalent function is achieved by a computer executing the supplied program.

  Accordingly, the program code itself supplied and installed in the computer in order to implement the functional processing of the present invention by the computer also realizes the present invention. That is, the computer program itself for realizing the functional processing of the present invention is also included in the present invention.

  In this case, the program may be in any form as long as it has a program function, such as an object code, a program executed by an interpreter, or script data supplied to the OS.

  As a recording medium for supplying the program, for example, a magnetic recording medium such as a flexible disk, a hard disk, a magnetic tape, MO, CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD- There are optical / magneto-optical storage media such as RW, and non-volatile semiconductor memory.

As a program supply method using wired / wireless communication, a computer program forming the present invention on a server on a computer network, or a computer forming the present invention on a client computer such as a compressed file including an automatic installation function A method of storing a data file (program data file) that can be a program and downloading the program data file to a connected client computer can be used. In this case, the program data file can be divided into a plurality of segment files, and the segment files can be arranged on different servers.
That is, the present invention includes a server device that allows a plurality of users to download a program data file for realizing the functional processing of the present invention on a computer.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to the user, and key information for decrypting the encryption for a user who satisfies a predetermined condition is provided via a homepage via the Internet, for example It is also possible to realize the program by downloading it from the computer and executing the encrypted program using the key information and installing it on the computer.

  In addition to the functions of the above-described embodiments being realized by the computer executing the read program, the OS running on the computer based on an instruction of the program is a part of the actual processing. Alternatively, the functions of the above-described embodiment can be realized by performing all of them and performing the processing.

  Furthermore, after the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion board or The CPU of the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

1 is a block diagram illustrating a configuration example of a main part of a digital still camera as an example of an imaging apparatus according to an embodiment of the present invention. It is a flowchart explaining the whole flow of the process regarding imaging | photography of the digital camera which concerns on embodiment. It is a flowchart explaining the detail of the imaging process in 1st Embodiment. 5 is a flowchart illustrating details of development processing / compression processing according to the first exemplary embodiment. 6 is a flowchart illustrating details of a recording process according to the first embodiment. FIG. 5 is a schematic diagram illustrating a buffer configuration at the time when development processing / compression processing is completed in the first embodiment. It is a schematic diagram which shows the relationship between the buffer structure at the time of RAW recording in 1st Embodiment, and a file structure. It is a schematic diagram which shows the relationship between the buffer structure at the time of simultaneous recording in 1st Embodiment, and a file structure. 12 is a flowchart for explaining processing steps different from those in the first embodiment in the development processing and compression processing of the second embodiment. It is a schematic diagram which shows the relationship between the buffer structure at the time of simultaneous recording in 2nd Embodiment, and a file structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Shooting lens 102 Diaphragm 103 Shutter 104 Image sensor 105 A / D converter 106 Timing generation circuit 107 Image processing circuit 109 Image display part 110 Memory control circuit 111 Image display memory 112 Memory 113 Compression / decompression circuit 114 Shutter control circuit 115 Aperture control circuit 116 Distance control circuit 117 Strobe control circuit 118 Mode dial switch 119 Switch SW1
120 switch SW2
121 Menu operation switch 122 Power control circuit 123 Interface (I / F)
124 connector

Claims (7)

Imaging means for generating raw image data using an imaging element and an A / D converter;
Development processing means for performing development processing on the raw image data and outputting the processed image data;
The raw image data file and the developed image data file obtained by performing the development process on the raw image data can be recorded as a captured image file, and the raw image data file can be recorded. An image pickup apparatus having recording means for recording developed image data to be displayed as display image data in the raw image data file , wherein the raw image data file and the developed image are processed in one image When both the image data files are recorded by the recording unit, the image data for display is generated using the developed image data recorded in the developed image data file, and the image data can be captured at a time. The display image data when both the raw image data file and the developed image data file are recorded. Zodo the imaging apparatus wherein said higher than the resolution of the display image data when recording only the files of the raw image data in one shooting.   When the recording unit records both the raw image data file and the developed image data file, the same development processing as the developed image data recorded in the developed image data file. The imaging apparatus according to claim 1, wherein the completed image data is recorded as the display image data. The recording means further comprises compression means for compressing and encoding the developed image data;
3. The imaging apparatus according to claim 1, wherein the developed image data compression-encoded by the compression unit is recorded. An imaging step of generating raw image data using an imaging element and an A / D converter;
A development process for performing development processing on the raw image data and outputting the processed image data;
The raw image data file and the developed image data file obtained by performing the development process on the raw image data can be recorded as a captured image file, and the raw image data file can be recorded. A recording step of recording the developed image data to be displayed as display image data in the raw image data file ,
When the recording process records both the raw image data file and the developed image data file in one shooting, the developed image recorded in the developed image data file The image data for display is generated using data, and the resolution of the image data for display when recording both the raw image data file and the developed image data file in one shooting is determined. A method for controlling an imaging apparatus, wherein the resolution is higher than the resolution of the display image data when only the raw image data file is recorded in one shooting . When the recording step records both the raw image data file and the developed image data file, the same development process as the developed image data recorded in the developed image data file 5. The method of controlling an imaging apparatus according to claim 4 , wherein completed image data is recorded as the display image data. The recording step further includes a compression step of compression-encoding the developed image data;
6. The control method for an imaging apparatus according to claim 4 , wherein the developed image data that has been compression-encoded in the compression step is recorded. The program for making a computer perform each process of the control method of the imaging device of any one of Claim 4 thru | or 6 .

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