JP2007267208A - Imaging apparatus and program therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accomplish an imaging apparatus and program therefor in which automatic luminance adjustment suitable for the preference of a user can be easily performed. <P>SOLUTION: The present invention relates to the imaging apparatus which includes a BV table which is divided for each fixed range (k) in accordance with the value of a lightness BVs of a scene and in which a certain BVs value within each range (k) and a BVf value corresponding thereto are stored one by one for each range (k) as one set in one-to-one correspondence, and uses the BV table to adjust the display luminance of a finder by determining an appropriate BVf value from the lightness BVs value of a present scene. This BV table can be rewritten and when the user manually adjusts the finder display luminance, in place of the set of the range (k) to which a BVs value calculated during this manual adjustment belongs, one set in which the calculated BVs value is associated with the manually adjusted BVf value, is stored in the BV table. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an imaging apparatus and a program thereof, and more particularly, to an imaging apparatus that automatically adjusts the brightness of a backlight and a program thereof.

  In recent years, in a technique for adjusting the brightness of a backlight of a display unit that displays an image or the like, a brightness setting storage unit capable of arbitrarily changing the correspondence between the brightness data and the brightness setting data of the backlight is calculated and calculated. The brightness setting data is retrieved from the brightness setting storage unit based on the brightness data, and the brightness of the backlight is adjusted according to the retrieved result (Patent Document 1).

JP Patent Publication No. 2005-286417

  However, according to the above technique, it is described that the content stored in the luminance setting storage unit can be variably set, but the specific method is not described at all, and it corresponds to the user's preference. Automatic brightness adjustment cannot be performed easily.

  Therefore, the present invention has been made in view of such conventional problems, and an object of the present invention is to provide an imaging apparatus and a program thereof that can easily perform automatic luminance adjustment according to user's preference.

In order to achieve the above object, an image pickup apparatus according to the first aspect of the present invention includes an image pickup means for picking up an image of a subject and outputting image data.
Display means for displaying the image data output from the imaging means;
Manual adjustment means for the user to manually adjust the display brightness of the display means;
Subject luminance acquisition means for acquiring subject luminance;
A first table capable of storing a plurality of sets in which a luminance value indicating the display luminance of the display means and a luminance value indicating the subject luminance are associated;
The brightness value indicating the display brightness of the display means manually adjusted by the manual adjustment means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other as one set. Storage control means for storing in the first table;
By using the first table stored by the storage control means, an automatic adjustment means for automatically adjusting the display brightness of the display means based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition means When,
It is provided with.

For example, as described in claim 2, the automatic adjustment unit includes:
Using the first table, a luminance value indicating the display luminance of the display unit corresponding to the luminance value indicating the subject luminance acquired by the subject luminance acquiring unit is acquired, and automatically according to the acquired luminance value Adjustments may be made.

For example, as described in claim 3, the automatic adjustment unit includes:
The luminance value indicating the display brightness of the display means and the subject determined based on a plurality of sets of the brightness value indicating the display brightness of the display means and the brightness value indicating the subject brightness value stored in the first table A brightness value indicating the display brightness of the display unit corresponding to the brightness value indicating the subject brightness acquired by the subject brightness acquisition unit may be acquired by an approximate line indicating a relationship with the brightness value indicating the brightness. Good.

For example, as described in claim 4, the automatic adjustment unit includes:
Both a second table in which a plurality of sets in which a luminance value indicating the display luminance of the display means and a luminance value indicating the subject luminance are associated are stored as default values, and the first table May be used to automatically adjust the display brightness of the display means.

For example, as described in claim 5, the first table is:
A plurality of sets in which a brightness value indicating the display brightness of the display means and a brightness value indicating the subject brightness are associated are stored as default values,
The storage control means includes
The brightness value indicating the display brightness of the display means manually adjusted by the manual adjustment means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other as one set. You may make it update the memory | storage of a said 1st table by making it memorize | store in a said 1st table.

For example, as described in claim 6, the first table is:
It is a storage medium that can be divided into a plurality of ranges according to the size of the luminance value indicating the subject luminance, and one set can be stored in the divided range,
The storage control means includes
When the manual adjustment is performed by the manual adjustment unit, the acquired subject is used instead of the group stored in the range to which the luminance value indicating the subject luminance acquired by the subject luminance acquisition unit at the time of the manual adjustment belongs. You may make it memorize | store the group which matched the luminance value which shows a brightness | luminance, and the luminance value which shows the display brightness of the said display means manually adjusted by the manual adjustment means.

For example, as described in claim 7, the storage control unit includes:
When the manual adjustment is performed by the manual adjustment unit, the luminance value indicating the display luminance of the display unit manually adjusted by the manual adjustment unit and the luminance value indicating the subject luminance acquired by the subject luminance acquisition unit Are stored in association with each other by monotonically increasing or decreasing the luminance value indicating the display luminance of the other display unit and the luminance value indicating the subject luminance. The other set of values may be updated.

For example, as described in claim 8, the storage control unit includes:
In the manual adjustment mode in which the display brightness of the display means is manually adjusted, when the display brightness of the display means is manually adjusted by the manual adjustment means, the display means manually adjusted by the manual adjustment means The brightness value indicating the display brightness and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other and stored in the first table as one set,
The automatic adjustment means includes
Based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition means by using the first table stored by the storage control means in the automatic adjustment mode for automatically adjusting the display brightness of the display means. Then, the display brightness of the display means may be automatically adjusted.

Further, for example, as described in claim 9, the automatic adjustment means includes:
Based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition means by using the first table stored by the storage control means in the automatic adjustment mode for automatically adjusting the display brightness of the display means. Automatically adjusting the display brightness of the display means,
The storage control means includes
When manual adjustment of the display brightness of the display means is performed by the manual adjustment means in the automatic adjustment mode for automatically adjusting the display brightness of the display means, the display means manually adjusted by the manual adjustment means each time. The brightness value indicating the display brightness and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other and stored in the first table as one set. Good.

For example, as described in claim 10, the storage control unit includes:
The brightness value indicating the display brightness of the display means at the end of manual adjustment by the manual adjustment means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means, or the end of manual adjustment by the manual adjustment means The average value of the luminance values indicating the display luminance of the display means before and after and the average value of the luminance values indicating the subject brightness acquired by the subject brightness acquisition means, or periodically during manual adjustment by the manual adjustment means The obtained luminance value indicating the display luminance of the display unit and the luminance value indicating the subject luminance acquired by the subject luminance acquisition unit may be associated with each other and stored in the first table.

For example, as described in claim 11, the storage control unit includes:
When there are a plurality of luminance values indicating the subject brightness corresponding to the brightness value indicating the display brightness of one display means, or the brightness value indicating the display brightness of the display means corresponding to the brightness value indicating one subject brightness is When there are a plurality of values, the latest value or the average value thereof may be stored in association with each other.

To achieve the above object, a program according to a twelfth aspect of the invention includes an imaging means for imaging a subject and outputting image data;
Display means for displaying the image data output from the imaging means;
Manual adjustment means for the user to manually adjust the display brightness of the display means;
A table capable of storing a plurality of sets in which brightness values indicating display brightness of the display means and brightness values indicating subject brightness are associated;
A program for executing an imaging apparatus comprising:
Subject brightness acquisition processing for acquiring subject brightness;
The luminance value indicating the display luminance of the display unit manually adjusted by the manual adjustment unit and the luminance value indicating the subject luminance acquired by the subject luminance acquisition process at the time of the manual adjustment are associated with each other as one set. Storage control processing to be stored in the table;
An automatic adjustment process for automatically adjusting the display brightness of the display means based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition process by using the table stored by the storage control process;
It is characterized by including.

  According to the present invention, the user manually adjusts the display brightness of the imaging means for imaging the subject and outputting the image data, the display control means for displaying the image data output from the imaging means, and the display means. Manual adjustment means, subject brightness acquisition means for acquiring subject brightness, and a plurality of pairs in which a brightness value indicating the display brightness of the display means and a brightness value indicating the subject brightness are associated with each other A table, a luminance value indicating the display luminance of the display means manually adjusted by the manual adjustment means, and a luminance value indicating the subject luminance acquired by the subject luminance acquisition means at the time of the manual adjustment are associated with each other. By using the storage control means for storing in the first table as one set and the first table stored by the storage control means, the subject brightness acquisition means Automatic adjustment means for automatically adjusting the display brightness of the display means based on the acquired brightness value indicating the subject brightness, and automatically adjusting the viewfinder brightness to the user's preference can do.

Hereinafter, the present embodiment will be described in detail with reference to the drawings as an example in which the imaging apparatus of the present invention is applied to a digital camera.
[Embodiment]
A. Configuration of Digital Camera FIG. 1 is a block diagram showing a schematic electrical configuration of a digital camera 1 that implements the imaging apparatus of the present invention.
The digital camera 1 includes a photographing lens 2, a lens driving block 3, a diaphragm shutter 4, a CCD 5, a TG (timing generator) 6, a unit circuit 7, a CPU 8, a DRAM 9, a memory 11, a ROM 10, a key input unit 12, a flash memory 13, The image display unit 14 is configured.

  The photographing lens 2 includes a focus lens and a zoom lens (not shown), and a lens driving block 3 is connected thereto. The lens driving block 3 includes a focus motor and a zoom motor that drive a focus lens and a zoom lens (not shown) in the optical axis direction, and a focus motor that drives the focus motor and the zoom motor in the optical axis direction according to a control signal from the CPU 8, respectively. It consists of a driver and a zoom motor driver.

The aperture / shutter 4 includes a drive circuit (not shown), and the drive circuit operates the aperture / shutter according to a control signal sent from the CPU 8. The aperture / shutter functions as an aperture and a shutter.
The diaphragm is a mechanism that controls the amount of light that enters from the photographic lens 2, and the shutter is a mechanism that controls the time that light is applied to the CCD 5, and the time that light is applied to the CCD 5 is It varies depending on the shutter opening / closing speed (shutter speed). The aperture and shutter speed are determined based on the calculated exposure EV value.

  The CCD 5 converts the light of the subject projected through the photographing lens 2 and the diaphragm / shutter 4 into an electrical signal and outputs it as an imaging signal to the unit circuit 7. The CCD 5 is driven in accordance with a predetermined frequency timing signal generated by the TG 6. A unit circuit 7 is connected to the TG 6.

  The unit circuit 7 includes a CDS (Correlated Double Sampling) circuit that holds the imaging signal output from the CCD 5 by correlated double sampling, an AGC (Automatic Gain Control) circuit that performs automatic gain adjustment of the imaging signal after the sampling, The A / D converter converts an analog image pickup signal after automatic gain adjustment into a digital signal. The image pickup signal of the CCD 5 is sent to the CPU 8 as a digital signal through the unit circuit 7.

The CPU 8 performs image processing (pixel interpolation processing, γ correction, luminance color difference signal generation, white balance processing, exposure correction processing, etc.) of image data sent from the unit circuit 7, and compression / decompression of image data (for example, JPEG This is a one-chip microcomputer that has a function of performing processing such as compression / decompression of a format or MPEG format and controls each part of the digital camera 1.
In particular, the CPU 8 calculates the exposure amount EV based on the luminance component of the imaged image data, calculates the brightness BVs of the scene, and the display luminance of the image display unit (finder) 14 appropriate for the calculated BVs. It has a function of calculating BVf and adjusting the brightness of the backlight of the image display unit 14.

The DRAM 9 is used as a buffer memory for temporarily storing image data sent to the CPU 8 after being imaged by the CCD 5 and as a working memory for the CPU 8.
The ROM 10 stores a program necessary for controlling each part of the digital camera 1 by the CPU 8 and data necessary for controlling each part. The CPU 8 performs processing according to this program.

The memory 11 has a BV table in which BVs indicating scene brightness, which will be described later, and BVf indicating viewfinder luminance are associated as default values. The data stored in this BV table can be rewritten.
The key input unit 11 includes a plurality of operation keys such as a power On / Off key, a shutter button, a mode switching key, and a viewfinder display brightness adjustment button, and outputs an operation signal corresponding to the user's key operation to the CPU 8.

The flash memory 13 is a recording medium that stores image data captured by the CCD 5.
The image display unit (finder) 14 includes a color LCD and its driving circuit, displays a battery setting menu and a remaining battery level, and displays a subject imaged by the CCD 5 as a through image when in a shooting standby state. The color LCD has a backlight, and the brightness of the backlight (hereinafter referred to as finder display luminance) is adjusted under the control of the CPU 8.

B. Function of Configuration Characterizing the Present Invention Next, the function of the configuration characterizing the present invention will be described.
The CPU 8 calculates the exposure amount EV value based on the luminance component of the image data imaged by the CCD 5, and obtains the sensitivity SV value. This sensitivity refers to the action of brightening the image, and is determined by the amount of gain amplified by the CDS circuit and the number of pixels to be added when image data is read from the CCD 5 by pixel addition driving.

Then, the CPU 8 uses the calculated EV value and the obtained SV value to calculate a scene brightness BVs value (luminance value indicating subject luminance) of the image. This calculation can be obtained by BVs = EV−SV. BV, EV, SV and the like are units defined by the APEX standard.
Then, the CPU 8 calculates a finder display luminance BVf value (luminance value indicating the display luminance of the finder) corresponding to the calculated BVs value by linear interpolation based on a BV table described below, and the calculated BVf and Change the finder brightness (LCD backlight brightness) so that

Next, the BV table will be described.
In the BV table, a plurality of sets in which BVs values and BVf values are associated with each other are stored in advance. This BVs is divided into a certain range k (= 0, 1, 2,..., N) according to the magnitude of the BVs value, and a certain BVs value in each range k and a corresponding BVf are One-to-one correspondence is stored as one set, and no more than two sets are stored in each range k. Thereby, the capacity of data to be stored can be reduced.

FIG. 2A is a diagram illustrating a state of the BV table stored in the memory 11. As can be seen from FIG. 2A, the BVs value and the BVf value are stored in association with each other in a certain range k.
FIG. 2B shows a relationship graph of each BV set stored in the BV table and a line obtained by linear interpolation.

Each point (black point) in FIG. 2B is a point determined by the BVs value and the BVf value of each group stored in the BV table. As can be seen from the figure, the BVs values are divided for each fixed range k, and a certain BVs value in each range k and a corresponding BVf value have a one-to-one correspondence.
The lines in the figure are approximate lines obtained by linear interpolation based on the BVs value and BVf value of each set stored in the BV table.
With this line, each BVs value and the corresponding BVf value are determined.

In addition, the set data of the BVs value and the BVf value stored in the BV table can be stored and updated. When the finder brightness is adjusted by the user's manual operation, the BVs value and the BVs value are set according to the adjustment. The storage with the BVf value is updated. At this time, when the viewfinder brightness adjustment is performed, the BVs value at the time of adjustment and the BVf value after the adjustment are changed to the group stored in the range k to which the BVs value at the time of adjustment belongs, and the memory update is performed. Let That is, since only one set data is stored in each range k of the BVs value, after the adjustment, the set data before the adjustment is discarded and the set data of the adjusted BVs and BVf is stored.
Although the values of BVs and BVf other than the set data stored by linear interpolation are obtained here, linear approximation may be obtained by the least square method, or an approximate line may be obtained by spline approximation. It may be.

C. Operation of Digital Camera 1 The operation of the digital camera 1 in the embodiment will be described with reference to the flowchart of FIG.
When the operation of the finder (for example, the operation of displaying a through image on the finder) is started, the CPU 8 starts calculating the BVs value (step S1). This calculation is performed at regular intervals (or at every imaging cycle). When the power is turned on by the user operating the power On / Off key of the key input unit 12, the CPU 8 starts the viewfinder operation.

Next, the CPU 8 determines whether or not manual adjustment of the finder luminance has been performed by the user's finder display luminance adjustment button operation (step S2).
If it is determined in step S2 that manual adjustment has been performed, the storage of the set data of the range k to which the BVs value calculated (acquired) at the time of manual adjustment belongs is updated (step S3).
More specifically, instead of the set data belonging to the range k to which the BVs value calculated at the time of manual adjustment belongs, the calculated BVs value and the manually adjusted BVf value (the BVf value immediately after the manual adjustment) are associated with each other. The attached one set data is stored in the BV table.

FIG. 4A shows a relational graph of the set data of each BV stored in the BV table at the time of manual adjustment and a line obtained by linear interpolation.
For example, when the range k to which the BVs value calculated at the time of manual adjustment belongs is set to k = 2, the set data belonging to k = 2, that is, among the plurality of set data already stored in the BV table, Instead of the set data 2 belonging to the range of k = 2, the set data 2 ′ in which the calculated BVs value and the manually adjusted BVf value are associated is stored in the BV table.
Thereby, the storage of the BV table can be updated so as to suit the user's preference, and the BV table can be modified to be specialized for the user.

  Next, the CPU 8 monotonically increases the set data belonging to the range k around the range k to which the updated set belongs according to the increase rate of the BVs value and the BVf value of the range k to which the updated set data belongs ( (Or decrease), the memory is updated (step S4), and the process proceeds to step S5.

  As can be seen from FIG. 4A, since the storage of the set data belonging to the range k (= 2) has been updated by manual adjustment, the range k around the range k (= 2), here, k The set data belonging to the range of = 1 and k = 3 is updated so as to monotonically increase. At this time, the BVs value and the BVf value increase rate in the range k to which the updated set data belongs belong to the BVs value and BVf value of the set data 2 before manual adjustment, the BVs value of the set data 2 ′ after manual adjustment, and From the BVf, the increase rate of the BVs value and the BVf value is obtained.

Then, the BVs value and the BVf value of the set data in the peripheral range k are updated and stored in accordance with the obtained increase rate. 4A, it can be seen that the set data 1 is monotonically increased to become set data 1 ′, and the set data 3 is monotonically increased to become set data 3 ′.
In this way, since not only the set data of the range that has been manually adjusted, but also the storage of the surrounding set data is updated, consistency with other set data is maintained, and multiple ranges of set data can be maintained with a single adjustment. Data storage can also be updated, and data storage in the BV table can be modified to suit user preferences.

On the other hand, if it is determined in step S2 that manual adjustment has not been performed, the process proceeds directly to step S5.
In step S5, the CPU 8 obtains an approximate line by linear interpolation based on a plurality of sets of data currently stored in the BV table, and BVs currently calculated (acquired) based on the obtained approximate line. A BVf value corresponding to the value is calculated.
As described above, since approximate lines are obtained by linear interpolation based on a plurality of sets of data stored in the BV table, it is not necessary to store all the BVs and the corresponding BVf, and the amount of data to be stored can be reduced. Can be reduced.

Next, the CPU 8 changes the finder brightness based on the calculated BVf value (step S6).
That is, when manual adjustment is performed in step S2, the finder brightness is adjusted according to the manual adjustment, and when manual adjustment is not performed in step S2, the finder brightness corresponding to the current BVs value is automatically adjusted. It will be.

Next, the CPU 8 determines whether or not to end the finder operation (step S7). This determination is made when the finder operation is terminated when an operation signal corresponding to the power being turned off is sent from the key input unit 12 by the operation of the power On / Off key.
If it is determined in step S7 that the finder display is not terminated, the process returns to step S2, and if it is determined in step S7 that the finder display is terminated, the finder operation is terminated.

D. As described above, in the embodiment, when manual adjustment is performed, the BVs at the time of manual adjustment and the BVf that has been manually adjusted are replaced with the set data of the range k to which the BVs calculated at the time of manual adjustment belongs. Are stored as one set of data in association with each other to update the BV table data storage and change the finder brightness based on the BV table. It is possible to easily update the BV table without performing the adjustment, and it is possible to automatically adjust the viewfinder brightness to the user's preference.

[Modification]
E. The above-described embodiment can be modified as follows.
(1) In the above embodiment, automatic adjustment of finder brightness and manual adjustment are mixed, but manual adjustment mode and automatic adjustment mode are separately provided as modes that can be selected by the user by manual operation. It is also possible that manual adjustment of the finder brightness can be performed only in the manual adjustment mode, and only automatic adjustment can be performed in the automatic adjustment mode. In this case, the storage of data of the BV table used in the automatic adjustment mode is updated using the BVs value and the BVf value when manually adjusted in the manual adjustment mode.

  (2) In the above-described embodiment, a plurality of set data are stored in the BV table as default values in advance, and when manual adjustment is performed, the set data after the manual adjustment is stored. The set data stored in the table is updated. A BV table in which a plurality of set data as default values is stored in advance, and a manual BV table in which set data after manual adjustment is stored are stored. And an approximate line may be calculated using the BV table and the manual BV table to adjust the finder brightness.

(3) In the above embodiment, when manual adjustment is performed, the storage of the BV table is updated by storing the set data in which the BVs value after manual adjustment is associated with BVf. The storage of the BV table may be updated by storing the set data in which the average value of the BVs value before and after the manual adjustment is completed and the average value of the BVf value are associated with each other.
Alternatively, the manual adjustment mode and the automatic adjustment mode may be provided separately, and when the manual adjustment mode is set, the BVs value and the BVf value may be periodically acquired to update the storage of the BV table. That is, when the manual adjustment mode is set, the storage of the BV table is periodically updated regardless of whether manual adjustment is performed.

(4) In the above embodiment, the finder brightness can be continuously changed. However, it may be changed in a step-by-step manner.
FIG. 4B shows the state at that time. Here, the BVf value can be adjusted in three stages (r = 0, 1, 2). In this case, the set of the range k around the range k to which the set data changed by the manual adjustment may be monotonously increased and stored and updated, or the manual adjustment is simply performed without monotonously increasing. Only the group data may be updated.

  (5) In the above embodiment, BVs and BVf are associated with each other and stored as one set of data. However, the EV value (luminance value indicating subject luminance) and the BVf value are associated with each other. You may make it memorize | store as one set data.

  (6) In the above embodiment, the EV value is obtained based on the image data obtained by the CCD 5. However, a photometric sensor is provided, and the EV value and BVs are obtained based on the photometric sensor. May be.

  (7) In the above embodiment, the BVs value is calculated (acquired) based on the image data captured by the CCD 5, but the BVs value is calculated based on the recorded moving image data or still image data. It is also possible to obtain and perform automatic adjustment or manual adjustment of the viewfinder.

  (8) In addition, the digital camera 1 in the above embodiment is not limited to the above embodiment, and is a mobile phone with a camera, a PDA with a camera, a personal computer with a camera, an IC recorder with a camera, or a digital video camera. In short, any device having a function of capturing an image of a subject and displaying the captured image may be used.

1 is a block diagram of a digital camera according to an embodiment of the present invention. It is a figure which shows the state of the BV table memorize | stored in the memory 11, the relationship graph of each BV group memorize | stored in the BV table, and the line calculated | required by linear interpolation. It is a flowchart which shows operation | movement of the digital camera 1 of embodiment. It is a figure which shows the line calculated | required at the time of the manual adjustment of embodiment, and the relationship graph of each BV group memorize | stored in the BV table of a modification, and linear interpolation.

Explanation of symbols

1 Digital Camera 2 Shooting Lens 3 Lens Drive Block 4 Shutter / Shutter 5 CCD
6 TG
7 Unit circuit 8 CPU
9 DRAM
10 ROM
11 Memory 12 Key input section 13 Flash memory 14 Image display section

Claims (12)

Imaging means for imaging a subject and outputting image data;
Display means for displaying the image data output from the imaging means;
Manual adjustment means for the user to manually adjust the display brightness of the display means;
Subject luminance acquisition means for acquiring subject luminance;
A first table capable of storing a plurality of sets in which a luminance value indicating the display luminance of the display means and a luminance value indicating the subject luminance are associated;
The brightness value indicating the display brightness of the display means manually adjusted by the manual adjustment means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other as one set. Storage control means for storing in the first table;
By using the first table stored by the storage control means, an automatic adjustment means for automatically adjusting the display brightness of the display means based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition means When,
An imaging apparatus comprising: The automatic adjustment means includes
Using the first table, a luminance value indicating the display luminance of the display unit corresponding to the luminance value indicating the subject luminance acquired by the subject luminance acquiring unit is acquired, and automatically according to the acquired luminance value The imaging apparatus according to claim 1, wherein adjustment is performed. The automatic adjustment means includes
The luminance value indicating the display brightness of the display means and the subject determined based on a plurality of sets of the brightness value indicating the display brightness of the display means and the brightness value indicating the subject brightness value stored in the first table A luminance value indicating the display luminance of the display unit corresponding to the luminance value indicating the subject luminance acquired by the subject luminance acquisition unit is acquired by an approximate line indicating a relationship with a luminance value indicating luminance. The imaging device according to claim 2. The automatic adjustment means includes
Both a second table in which a plurality of sets in which a luminance value indicating the display luminance of the display means and a luminance value indicating the subject luminance are associated are stored as default values, and the first table 4. The image pickup apparatus according to claim 1, wherein the display brightness of the display unit is automatically adjusted using an image sensor. The first table is:
A plurality of sets in which a brightness value indicating the display brightness of the display means and a brightness value indicating the subject brightness are associated are stored as default values,
The storage control means includes
The brightness value indicating the display brightness of the display means manually adjusted by the manual adjustment means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other as one set. 4. The imaging apparatus according to claim 1, wherein storage in the first table is updated by storing in the first table. 5. The first table is:
It is a storage medium that can be divided into a plurality of ranges according to the size of the luminance value indicating the subject luminance, and one set can be stored in the divided range,
The storage control means includes
When the manual adjustment is performed by the manual adjustment unit, the acquired subject is used instead of the group stored in the range to which the luminance value indicating the subject luminance acquired by the subject luminance acquisition unit at the time of the manual adjustment belongs. 6. A set in which a luminance value indicating luminance and a luminance value indicating display luminance of the display unit manually adjusted by a manual adjustment unit are associated with each other is stored. Imaging device. The storage control means includes
When the manual adjustment is performed by the manual adjustment unit, the luminance value indicating the display luminance of the display unit manually adjusted by the manual adjustment unit and the luminance value indicating the subject luminance acquired by the subject luminance acquisition unit Are stored in association with each other by monotonically increasing or decreasing the luminance value indicating the display luminance of the other display unit and the luminance value indicating the subject luminance. The imaging apparatus according to claim 1, wherein the other set of values is updated. The storage control means includes
In the manual adjustment mode in which the display brightness of the display means is manually adjusted, when the display brightness of the display means is manually adjusted by the manual adjustment means, the display means manually adjusted by the manual adjustment means The brightness value indicating the display brightness and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means at the time of the manual adjustment are associated with each other and stored in the first table as one set,
The automatic adjustment means includes
Based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition means by using the first table stored by the storage control means in the automatic adjustment mode for automatically adjusting the display brightness of the display means. The image pickup apparatus according to claim 1, wherein the display brightness of the display unit is automatically adjusted. The automatic adjustment means includes
Based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition means by using the first table stored by the storage control means in the automatic adjustment mode for automatically adjusting the display brightness of the display means. Automatically adjusting the display brightness of the display means,
The storage control means includes
When manual adjustment of the display brightness of the display means is performed by the manual adjustment means in the automatic adjustment mode for automatically adjusting the display brightness of the display means, the display means manually adjusted by the manual adjustment means each time. The luminance value indicating the display luminance of the image and the luminance value indicating the subject luminance acquired by the subject luminance acquisition means at the time of the manual adjustment are stored in the first table as one set in association with each other. The imaging device according to claim 1. The storage control means includes
The brightness value indicating the display brightness of the display means at the end of manual adjustment by the manual adjustment means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means, or the end of manual adjustment by the manual adjustment means The average value of the luminance values indicating the display luminance of the display means before and after and the average value of the luminance values indicating the subject brightness acquired by the subject brightness acquisition means, or periodically during manual adjustment by the manual adjustment means 2. The obtained brightness value indicating the display brightness of the display means and the brightness value indicating the subject brightness acquired by the subject brightness acquisition means are associated with each other and stored in the first table. The imaging apparatus in any one of thru | or 9. The storage control means includes
When there are a plurality of luminance values indicating the subject brightness corresponding to the brightness value indicating the display brightness of one display means, or the brightness value indicating the display brightness of the display means corresponding to the brightness value indicating one subject brightness is 11. The imaging apparatus according to claim 1, wherein when there are a plurality, the latest value or an average value thereof is stored in association with each other. Imaging means for imaging a subject and outputting image data;
Display means for displaying the image data output from the imaging means;
Manual adjustment means for the user to manually adjust the display brightness of the display means;
A table capable of storing a plurality of sets in which brightness values indicating display brightness of the display means and brightness values indicating subject brightness are associated;
A program for executing an imaging apparatus comprising:
Subject brightness acquisition processing for acquiring subject brightness;
The luminance value indicating the display luminance of the display unit manually adjusted by the manual adjustment unit and the luminance value indicating the subject luminance acquired by the subject luminance acquisition process at the time of the manual adjustment are associated with each other as one set. Storage control processing to be stored in the table;
An automatic adjustment process for automatically adjusting the display brightness of the display means based on the brightness value indicating the subject brightness acquired by the subject brightness acquisition process by using the table stored by the storage control process;
The program characterized by including.

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