JP2006303833A - Imaging apparatus and image processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology whereby a preview image in the same coloring as that of a photographed image can be confirmed when illumination light at preview differs from illumination light at main photographing. <P>SOLUTION: An imaging apparatus capable of carrying out photographing in interlocking with a strobe unit (20) emitting lights with a plurality of different color temperatures includes: an imaging element (2) for applying photoelectric conversion to an incident light to provide an output of an image signal; first and second custom white balance value storage sections (6, 7) for storing a plurality of white balance values respectively corresponding to the color temperatures; a white balance processing section (5) that uses the white balance value stored in the storage sections corresponding to the color temperature of the light used for preliminary photographing in the case of the preliminary photographing, or uses the white balance value stored in the storage sections corresponding to the color temperature of the light used for main photographing in the case of the main photographing to apply white balance correction to the image signal output from the imaging element; and a monitor (19) for displaying the image whose white balance is corrected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an imaging apparatus such as a digital camera that captures an image using an individual imaging element, and an image processing method in the imaging apparatus.

  In an imaging apparatus using an individual imaging element such as a digital camera, white balance adjustment is essential for recording a captured image. There are several methods for adjusting the white balance.

  The most frequently used technique is auto white balance (AWB). This technique analyzes the captured image inside the imaging apparatus to calculate an optimal white balance correction value, and calculates the calculated white balance correction value. Is used to perform white balance processing on the captured image.

  In addition, there is a method called preset white balance adjustment. This method stores in advance, for example, white balance correction values corresponding to different light sources such as a fluorescent light, an incandescent light bulb, and an outdoor light source at the time of factory shipment. The white balance processing is performed using the white balance correction value designated by the photographer among the stored white balance correction values.

  Furthermore, there is a technique called one-touch white balance adjustment. In this technique, a white subject is photographed in the shooting environment before shooting, a preliminary measurement is performed, a white balance correction value is set, and the set white balance correction is set. The value is used to perform white balance processing on the captured image.

  FIG. 1 is a plan view showing a state of photographing a person in a studio using the above-described image pickup apparatus having a white balance adjustment function. In the studio, a digital camera 101 mounted on a gantry 104, a subject such as a person, etc. 105, a plurality of lighting devices (strobe devices) 102a to 102c arranged in front of and behind the subject 105, a background device 103, and the like are installed. Note that the gantry 104 may have various structures such as a tripod.

  As the illuminating devices 102a to 102c, strobe devices configured as shown in FIG. 2 are used. A plurality of diffusers and reflectors are attached in front of the strobe devices, and a plurality of them are arranged as shown in 102a to 102c in FIG.

  In FIG. 2, the flash device main body 110 is provided with a flash light emitting tube 114 and a modeling lamp 113, and a cover 112 drawn with a broken line is provided to protect these lamps. A strobe device is attached to a tripod (not shown) or the like by means of a mounting seat 111, and a plurality of strobe devices are arranged in the studio as shown in FIG.

JP 2004-179852 A

  As shown in FIG. 1, when a subject is illuminated using a plurality of illumination devices, the photographer 106 always lights up the modeling lamp 113 and determines the arrangement of each illumination device while observing the balance of illumination light. As the modeling lamp 113, a halogen lamp of several hundred W is generally used in many cases.

  The photographer 106 lights up the modeling lamp 113 for a long time in order to check the illumination balance with the eyes. The heat generated by the several hundred W halogen lamp is very large, and the temperature in the studio rises when many lighting devices are used. In order to avoid this, the voltage applied to the halogen lamp is generally lowered. A halogen lamp can be illuminated at a color temperature of 5000 ° K by applying a specified voltage. However, when the voltage is lowered, the color temperature becomes very low.

  Thus, when the subject is observed under a condition where the color temperature is very low, it is difficult to confirm the color of the subject although the balance of the distribution of illumination light can be confirmed. In particular, in the case of still life photography, it is very difficult to check the color of a subject with the naked eye, and it is difficult to check the color balance even though the composition and light distribution can be confirmed by looking through the camera finder. In an extreme expression, when the color temperature becomes very low by lowering the voltage applied to the modeling lamp 113, the subject is viewed under the illumination of a sodium lamp having a low color temperature.

  Further, the flashlight tube 114 illuminates the subject 105 by flashing in synchronization with the shutter when the digital camera is released (main photographing instruction). A xenon lamp is used for the flash tube 114, and its color temperature is about 6500 ° K, which is the same as that of sunlight.

  As described above, when the illumination light before photographing (during preview) and the illumination light during actual photographing are different from each other, if one attempts to correct both the preview image and the photographed image using one white balance correction value, Such image quality (generally a preview image) must be sacrificed.

  The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to check a preview image having the same color as a captured image when the illumination light at the time of preview differs from the illumination light at the time of actual shooting. And

  In order to achieve the above object, an imaging device of the present invention capable of photographing in conjunction with an illumination device that emits light having a plurality of different color temperatures includes an imaging unit that photoelectrically converts incident light and outputs an image signal. Storage means for storing a plurality of white balance values respectively corresponding to the plurality of color temperatures, and at the time of pre-shooting, white balance values stored in the storage means corresponding to the color temperature of light used in the pre-shooting. Using the white balance for correcting the white balance of the image signal output from the imaging unit using the white balance value stored in the storage unit corresponding to the color temperature of the light used in the actual shooting. And an image signal that has been subjected to white balance correction by the white balance correction unit.

  In addition, the image processing method of the present invention that processes an image signal obtained by photoelectric conversion of incident light in conjunction with an illumination device that emits light of a plurality of different color temperatures corresponds to each of the plurality of color temperatures. The storage step of storing a plurality of white balance values in the storage means and the white balance value stored in the storage means corresponding to the color temperature of the light used in the pre-photographing, the white of the obtained image signal A first white balance correction step for performing balance correction, a first display step for displaying the image signal that has been subjected to white balance correction in the first white balance correction step, and the color temperature of light used in the actual photographing. Using the white balance value stored in the corresponding storage means, a second white balance compensation for correcting the white balance of the obtained image signal. A step, in the second white balance correction step and a second displaying step of displaying the white balance corrected image signal.

  According to another configuration, the imaging device of the present invention capable of photographing in conjunction with an illumination device that emits light having a plurality of different color temperatures is an imaging unit that photoelectrically converts incident light and outputs an image signal. A storage means for storing a white balance value corresponding to a color temperature of light used in pre-shooting among the plurality of color temperatures, and a white balance value stored in the storage means at the time of pre-shooting. A white balance correction unit that performs white balance correction of an image signal output from the imaging unit using a white balance value obtained based on an image obtained in actual shooting at the time of shooting, and the white balance The image signal that has been subjected to white balance correction by the correction means is output to the display device.

  In addition, the image processing method of the present invention for processing an image signal obtained by photoelectrically converting incident light in conjunction with an illumination device that emits light having a plurality of different color temperatures includes: A storage step of storing in the storage means a white balance value corresponding to the color temperature of light used in the pre-photographing, and a white balance of the image signal obtained in the pre-photographing using the white balance value stored in the storage means A first white balance correction step for performing correction, a first display step for displaying the image signal that has been subjected to white balance correction in the first white balance correction step, and white based on the image signal obtained in the main photographing The white balance was corrected in the second white balance correction step for performing the balance correction and the second white balance correction step. And a second display step of displaying the image signal.

  The imaging device includes the display device, and preferably measures the color temperature of the ambient light of the display means, detects a white balance value according to the measured color temperature, and uses the detected white balance value. The white balance correction is further performed on the image signal corrected by the white balance correction means, and the display means displays the further corrected image signal.

  According to the present invention, when the illumination light at the time of preview is different from the illumination light at the time of actual photographing, a preview image having the same color as the photographed image can be confirmed.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 3 is a schematic block diagram showing the configuration of the digital camera 100 according to the first embodiment of the present invention. In FIG. 3, reference numeral 1 denotes a photographing lens for forming an image of an object, 2 denotes an image pickup device such as a CCD for converting an incident subject light image into an electric signal, and 3 denotes an A / D conversion by controlling the gain of the image pickup signal from the image pickup device 2. An AGC / A / D conversion circuit 4 is a signal processing circuit including a white balance (WB) processing unit 5.

  6 stores a first custom white balance (WB) value set in advance by measuring a white balance value of a modeling lamp (in the first embodiment, a halogen lamp as an example) by a known method. The first custom white balance (WB) value storage unit 7 measures and sets the white balance value of the flash tube (in the first embodiment, as an example, a xenon lamp) in advance for actual photographing by a known method. The second custom white balance (WB) value storage unit stores the second custom white balance (WB) value. The first and second custom WB value storage units 6 and 7 are configured by a memory that is not lost even when the power is turned off, for example, a RAM with a backup power source, a rewritable ROM such as a flash memory.

  Reference numeral 9 denotes a white balance (WB) input changeover switch for switching and inputting outputs from the first custom WB value storage unit 6 and the second custom WB value storage unit 7 to the white balance (WB) processing unit 5. The CPU 21 is controlled to select the first custom WB value storage unit 6 during preview and to select the second custom WB value storage unit 7 during actual shooting.

  Reference numeral 13 denotes an image memory for storing image data subjected to white balance processing by the WB processing unit 5, reference numeral 14 denotes a compression circuit for compressing image data read from the image memory 13, and reference numeral 15 denotes a compressed image data to a memory card or the like. A recording / reading unit 17 for recording on the medium 16 and reading image data from the medium 16, and a decompression circuit 17 decompresses the image data read from the medium 16. The image data expanded by the expansion circuit 17 is stored in the image memory 13 and displayed as a reproduced image.

  Reference numeral 19 is a monitor for displaying images and various displays, 18 is a display circuit for controlling display on the monitor 19, 12 is a preview image output from the WB processing unit 5, and obtained by actual photographing stored in the image memory 13. A display changeover switch 25 for switching and inputting the photographed image and the reproduced image read from the medium 16 to the display white balance (WB) processing unit 26, and 25 a white balance for measuring the light source color temperature around the monitor 19 (WB) is a detection unit. Since the color of the image displayed on the monitor 19 looks different depending on the color temperature of the light source that illuminates the monitor 19, the display WB processing unit 26 displays the image displayed on the monitor 19 as an image with an appropriate color. In order to allow observation, white balance processing is performed for display in accordance with the light source color temperature around the monitor 19 measured by the WB detection unit 25.

  Reference numeral 21 denotes a CPU for controlling each constituent member, and 22 is an operation input unit including a release button and a mode dial for performing various inputs to the CPU 21, and is stored in the first and second custom WB value storage units 6 and 7. An instruction such as registration of a custom white balance value to be performed or an instruction to start shooting by pressing the release button can be performed.

  Reference numeral 20 denotes an external strobe device for strobe shooting, and the CPU 21 performs synchronization control with shooting timing. The strobe device has, for example, a configuration as shown in FIG. In the first embodiment, the digital camera 100 having the above configuration and at least one strobe device are arranged as shown in FIG. 1, for example. Reference numeral 24 denotes an external PC connected to the CPU 21 via the I / F 23.

  Next, the photographing operation of the digital camera 100 will be described with reference to the flowcharts of FIGS.

  When the photographer 106 turns on the main switch of the operation input unit 22 in step S11, the CPU 21 in the digital camera 100 is activated from the sleep state to the control state, and power is turned on to each circuit in the digital camera 100. In S12, an initial screen is displayed on the monitor 19. Here, selection of a shooting mode by the photographer 106 is permitted.

  In step S13, an operation by the photographer 106 is awaited. When the photographer 106 performs an operation using the input operation unit 22, in step S14, it is determined whether or not a custom white balance (WB) mode has been set. The custom WB mode is a mode characteristic of the present embodiment, and can be set by a mode dial of the input operation unit 22 or the like. If the custom WB mode is set, the process proceeds to step S15, and if it is any other operation, it is determined in step S30 whether the power is turned off. In the case of a power-off operation, after power-off processing such as storing necessary information such as necessary parameters and control information in an internal memory (not shown) in step S31, power supply to other than necessary circuits is stopped. Then, the process ends. On the other hand, if it is not a power-off operation, the process proceeds to step S32 to perform processing according to the operation, and returns to step S13 to wait for the next operation by the photographer 106.

  If it is determined in step S14 that the custom WB mode has been set, in step S15, the preview WB correction value (first custom WB value) and the main shooting WB correction value (second custom WB value) are converted into known custom WB modes. The white balance is obtained by a method for obtaining and is set in the first and second custom WB value storage units 6 and 7, respectively.

  Subsequently, in step S16, it is determined whether or not the shooting preparation switch SW1 linked to the release button operation (for example, half-press) of the input operation unit 22 is turned on. If SW1 is not turned on, it is confirmed in step S33 whether the mode has been changed to a mode other than the custom WB mode. If not changed, the process returns to step S16 and repeats the ON operation determination of SW1, and if changed, It progresses to step S30 and performs the process mentioned above.

  On the other hand, if SW1 is turned on in step S16, the process proceeds to step S17, and pre-shooting is started. First, in step S17, the CPU 21 controls the WB input changeover switch 9 to select the first custom WB value storage unit 6, thereby selecting the first custom WB value set in step S15. The obtained image signal is subjected to WB processing corresponding to the halogen light. Further, in step S18, the WB detection unit 25 measures the color temperature around the monitor 19 and displays WB corresponding to the measured color temperature. After obtaining the value and performing the WB correction for display using the acquired WB value for display, the preview image is displayed on the monitor 19 in step S19.

  In this way, an image obtained by performing white balance correction in accordance with the installation environment of the monitor 19 is displayed on the monitor 19 after the white balance correction is performed on the preview image taken by the image sensor 2 under halogen light according to the halogen light. As a result, the photographer 106 can confirm an image having the same color as the image captured with the flash light in the actual shooting.

  Next, in step S20, photometry / ranging is executed. Photometry is performed by a known method of calculating subject luminance from a subject signal acquired by the image sensor 2, and distance measurement is performed using a known autofocus method.

  In step S21, it is determined whether or not the SW2 that is linked to the release button operation (for example, full press) of the input operation unit 22 is turned on. If SW2 is not turned on, the process returns to step S16.

  On the other hand, when SW2 is turned on, the process proceeds to step S22 and actual photographing is started. First, the aperture mechanism (not shown) is driven according to the aperture value set by the photometry / ranging in step S20, and the same setting is performed. The shutter mechanism is controlled based on the shutter speed.

  In step S23, the CPU 21 controls the WB input changeover switch 9 to select the second custom WB value storage unit 7, thereby selecting the second custom WB value set in step S15 and obtaining it from the image sensor 2. The obtained image signal is subjected to WB processing corresponding to the strobe light, and then recorded in the image memory 13. In step S 24, a predetermined image process such as a compression process is performed on the captured image stored in the image memory 13, and then the image is recorded on the medium 16. Further, in step S25, the color temperature around the monitor 19 is measured, a display WB value corresponding to the measured color temperature is acquired, and the captured image stored in the image memory 13 is acquired using the acquired display WB value. After performing WB correction for display on the image, the image is displayed on the monitor 19 in step S26. The recording process in step S24 may be performed after the captured image is displayed in step S26, or may be performed in parallel with the display process.

  As a result, an image obtained by performing white balance correction in accordance with the installation environment of the monitor 19 is displayed on the monitor 19 after the white balance correction corresponding to the xenon light is performed on the captured image captured by the image sensor 2 under xenon light. Thus, it is possible to notify the photographer 106 what kind of photograph was taken.

  In step S27, it is determined whether or not to turn off the display of the captured image. If so, the process returns to step S16. Note that the determination in step S27 may be for stopping the display after elapse of a preset time from the start of display, or the photographer 106 may stop the display using an operation switch (not shown).

  As described above, according to the first embodiment, when the illumination light at the time of preview is different from the illumination light at the time of actual photographing, a preview image having the same color as the photographed image can be confirmed.

  In the first embodiment, the case of using a halogen lamp at the time of preview and the case of shooting using a xenon lamp at the time of actual shooting has been described. However, the types of light sources used are not limited to these. It goes without saying that there is nothing.

<Second Embodiment>
Next, a second embodiment of the present invention will be described.

  In the first embodiment, the preview WB correction value and the main shooting WB correction value are set in the first and second custom WB value storage units 6 and 7 in advance, and at the time of preview and shooting. The case where different WB values are read from the first and second custom WB value storage units 6 and 7 and WB processing is performed has been described. On the other hand, in the second embodiment, a preset WB value is used at the time of preview, and a WB value detected and acquired from the captured image in the AWB mode is used at the time of actual shooting.

  FIG. 6 shows a basic configuration of the digital camera according to the second embodiment. In FIG. 6, the same components as those in FIG. 3 are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIG. 6, 6 'stores a custom WB value set in advance by measuring the white balance value of the modeling lamp (halogen lamp) for previewing by a known method in the same manner as in the first embodiment. A custom WB value storage unit 8 is a WB value detection unit that detects a white balance value from a captured image. Based on the control signal output from the CPU 21 according to whether the preview or the main photographing, the output of either the custom WB value storage unit 6 ′ or the WB value detection unit 8 is selected by the WB input changeover switch 9, and the white balance is selected. It is sent to the processing unit 5. The custom WB value storage unit 6 'is selected for a preview image, and the WB value detection unit 8 is selected for a captured image.

  In the digital camera of the second embodiment having the above-described configuration, modeling for preview is not performed in step S15 of FIG. 4 described in the first embodiment, without performing acquisition setting of the custom shooting WB value. The white balance value of the lamp (halogen lamp) is measured and set in the custom WB value storage unit 6 ′, the custom WB value is selected in step S17, and the second custom WB value is further selected in step S24 of FIG. Instead, the WB value detection unit 8 automatically acquires the WB value from the captured image by a known method, and the acquired WB value is selected.

  Since operations other than those described above are the same as those in the first embodiment, description thereof is omitted here.

  As described above, according to the second embodiment, it is possible to perform more adaptive WB correction on the captured image obtained by the actual capturing.

  In the first and second embodiments, the monitor 19 is described as being mounted on the digital camera 100. However, the monitor 19 may not be mounted on the digital camera 100, and may be connected to the digital camera, for example. It may be a monitor screen of a personal computer.

<Other embodiments>
An object of the present invention is to supply a storage medium (or recording medium) in which a program code of software for realizing the functions of the above-described embodiments is recorded to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus. Needless to say, this can also be achieved by reading and executing the program code stored in the storage medium. In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an operating system (OS) running on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included. Examples of the storage medium for storing the program code include a flexible disk, hard disk, ROM, RAM, magnetic tape, nonvolatile memory card, CD-ROM, CD-R, DVD, optical disk, magneto-optical disk, MO, and the like. Can be considered. Also, a computer network such as a LAN (Local Area Network) or a WAN (Wide Area Network) can be used to supply the program code.

  Furthermore, after the program code read from the storage medium is written into a memory provided in a function expansion card inserted into the computer or a function expansion unit connected to the computer, the function is based on the instruction of the program code. It goes without saying that the CPU or the like provided in the expansion card or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a top view which shows the mode of the studio which image | photographs with a digital camera using an illuminating device. It is a perspective view of the strobe device of the illumination device used in FIG. 1 is a block diagram illustrating a schematic configuration of a digital camera according to a first embodiment of the present invention. It is a flowchart explaining operation | movement of the digital camera in the 1st Embodiment of this invention. It is a flowchart explaining operation | movement of the digital camera in the 1st Embodiment of this invention. It is a block diagram which shows schematic structure of the digital camera in the 2nd Embodiment of this invention.

Explanation of symbols

  1: photographing lens, 2: imaging device, 3: AGC / A / D conversion circuit, 4: signal processing circuit, 5: white balance processing unit, 6: first custom white balance value storage unit, 6 ′: custom white balance Value storage unit, 7: second custom white balance value storage unit, 8: custom white balance value storage unit, 9: white balance input changeover switch, 12: display changeover switch, 13: image memory, 14: compression circuit, 15: Recording / reading unit, 16: medium, 17: expansion circuit, 18: display circuit, 19: monitor, 20: external strobe device, 21: CPU, 22: operation input unit, 23: I / F, 24: external PC, 25: White balance detection unit, 26: Display white balance processing unit, 100, 101: Digital camera, 102a to c: Illumination device (strobe device) ), 103: background device, 104: frame, 105: subject, 106: photographer

Claims (9)

An imaging device capable of photographing in conjunction with an illumination device that emits light of a plurality of different color temperatures,
Imaging means for photoelectrically converting incident light and outputting an image signal;
Storage means for storing a plurality of white balance values respectively corresponding to the plurality of color temperatures;
At the time of pre-photographing, the white balance value stored in the storage means corresponding to the color temperature of light used in the pre-photographing is used, and at the time of main photographing, the storage means corresponding to the color temperature of the light used in the main photographing. White balance correction means for performing white balance correction of the image signal output from the imaging means using the white balance value stored in
An image pickup apparatus that outputs an image signal subjected to white balance correction by the white balance correction means to a display device. The storage means includes a plurality of storage units that respectively store the plurality of white balance values, and the imaging device includes:
Switch means for switching between the plurality of storage units and supplying the white balance value stored in any of the storage units to the white balance correction unit;
Control means for controlling the switch means so as to select a storage part for storing a white balance value corresponding to a color temperature of light used for photographing among the plurality of storage parts. The imaging device according to claim 1. An imaging device capable of photographing in conjunction with an illumination device that emits light of a plurality of different color temperatures,
Imaging means for photoelectrically converting incident light and outputting an image signal;
Storage means for storing a white balance value corresponding to the color temperature of light used in pre-shooting among the plurality of color temperatures;
The image signal output from the imaging unit using the white balance value stored in the storage unit at the time of pre-photographing, and using the white balance value obtained based on the image obtained by the main photographing at the time of main photographing. White balance correction means for performing white balance correction of
An image pickup apparatus that outputs an image signal subjected to white balance correction by the white balance correction means to a display device. The imaging device includes the display device,
Detecting means for measuring a color temperature of ambient light of the display means, and detecting a white balance value according to the measured color temperature;
Display white balance correction means for further performing white balance correction on the image signal corrected by the white balance correction means using the detected white balance value;
The imaging apparatus according to claim 1, wherein the display unit displays the image signal further corrected by the display white balance correction unit. An image processing method for processing an image signal obtained by photoelectrically converting incident light in conjunction with an illumination device that emits light having a plurality of different color temperatures,
A storage step of storing a plurality of white balance values respectively corresponding to the plurality of color temperatures in a storage unit;
A first white balance correction step of performing white balance correction of the obtained image signal using a white balance value stored in the storage means corresponding to the color temperature of light used in pre-photographing;
A first display step for displaying the image signal subjected to white balance correction in the first white balance correction step;
A second white balance correction step of performing white balance correction of the obtained image signal using the white balance value stored in the storage means corresponding to the color temperature of light used in the actual photographing;
An image processing method comprising: a second display step for displaying the image signal that has been subjected to white balance correction in the second white balance correction step. An image processing method for processing an image signal obtained by photoelectrically converting incident light in conjunction with an illumination device that emits light having a plurality of different color temperatures,
A storage step of storing a white balance value corresponding to a color temperature of light used in pre-shooting among the plurality of color temperatures in a storage unit;
A first white balance correction step for performing white balance correction of an image signal obtained by pre-shooting using the white balance value stored in the storage unit;
A first display step for displaying the image signal subjected to white balance correction in the first white balance correction step;
A second white balance correction step for performing white balance correction based on the image signal obtained in the main photographing;
An image processing method comprising: a second display step of displaying the image signal subjected to white balance correction in the second white balance correction step. The first and second display steps include:
A detection step of measuring the color temperature of the ambient light of the display means and detecting a white balance value according to the measured color temperature;
A display white balance correction step of further performing white balance correction on the image signal corrected in the first or second white balance correction step using the detected white balance value;
The image processing method according to claim 5 or 6, wherein in the first and second display steps, the image signal further corrected in the display white balance correction step is displayed.   A program executable by an information processing apparatus, comprising program code for realizing the image processing method according to claim 5.   A storage medium readable by an information processing apparatus, wherein the program according to claim 8 is stored.

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