JP2012233954A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve visibility and operability when an electronic apparatus is used underwater.SOLUTION: In an imaging apparatus, which is a kind of an electronic apparatus, a plurality of icons as well as an input image are displayed on a display having a touch panel function. A case where the imaging apparatus is determined not to be underwater is set as a reference. When the imaging apparatus is determined to be underwater, a method for displaying a particular icon included in the display icons is changed. For example, when the imaging apparatus is determined to be underwater, a display size of the particular icon is increased, or display positions of the particular icons are concentrated in a right side of a display screen, or a color of the particular icon is changed into a non-red color, for example, green and the like.

Description

  The present invention relates to an electronic apparatus including an imaging device such as a digital video camera or a digital still camera.

  In recent years, an imaging apparatus having a waterproof function has been put into practical use, and an imaging apparatus having a touch panel has been put into practical use. A conventional imaging device uses a common user interface both when used underwater and when used underwater.

  A technique for determining whether or not to emit strobe light depending on whether or not the shooting environment is underwater has also been proposed (see, for example, Patent Document 1 below).

JP 2003-186093 A

  When the imaging device is used in water, the visibility of the display screen is reduced due to light absorption and scattering by water. In addition, underwater, user operability is also reduced due to water pressure and water resistance. In particular, when a user interface for giving a shooting instruction or the like by touch panel operation is formed, the user's operability is greatly reduced in combination with a decrease in visibility under water. However, the conventional imaging device uses a common user interface for both underwater use and non-underwater use. Do not give a solution. The same applies to Patent Document 1. In addition, problems such as the above-described deterioration in visibility can occur not only in the imaging apparatus but also in various electronic devices.

  Then, an object of this invention is to provide the electronic device which contributes to the visibility improvement in water.

  An electronic device according to the present invention includes an underwater determination unit that determines whether or not the electronic device is underwater in an electronic device including a display unit, and the display unit according to a determination result of the underwater determination unit. And a display control unit for changing display contents.

  When the electronic device is underwater, visibility in water is expected to be improved by making the display content appropriate for the water. In particular, when a user interface that gives a shooting instruction or the like by touch panel operation is formed, a great improvement effect of operability under water is expected together with improvement of visibility.

  Specifically, for example, the display control unit displays one or more icons including a specific icon on the display unit, and the electronic device is underwater and underwater depending on the determination result of the underwater determination unit. The display method of the specific icon may be different from each other.

  More specifically, for example, the display control unit may reduce the ratio of the red component in the specific icon when the electronic device is underwater than when the electronic device is not underwater. In addition, the color of the specific icon may be changed according to the determination result of the underwater determination unit.

  Considering that red light is easily attenuated under water, it is expected that the visibility of the specific icon in water will be improved by changing the color of the specific icon as described above. Improved visibility can also lead to improved operability.

  Further, for example, the display control unit is configured such that the number of icons displayed on the display unit when the electronic device is underwater is the number of icons displayed on the display unit when the electronic device is not underwater. The display content may be changed according to the determination result of the underwater determination unit so as to be less than the number.

  This also is expected to improve the visibility of icons in the water. Improved visibility can also lead to improved operability.

  Further, for example, the display control unit is configured such that a red component included in the display content when the electronic device is underwater is more than a red component included in the display content when the electronic device is not underwater. The display content may be changed according to the determination result of the underwater determination unit.

  More specifically, for example, the electronic device is an imaging device, and further includes a color correction processing unit that performs color correction processing for increasing a red component on an input image obtained by shooting, and the display control The unit displays the input image before the color correction processing on the display unit when it is determined that the imaging device is not underwater, and the determination unit determines that the imaging device is underwater. The input image after the color correction process may be displayed on the display unit.

  Thereby, it becomes possible to reduce the difference in the appearance of the image in the air and in the middle of the water.

  Further, for example, the electronic device is an imaging device, and after the image is captured, the display control unit displays a captured image or an image based on the captured image on the display unit for a postview time, and the imaging device is underwater. When it is determined that the imaging device is below, the post-view time may be decreased as compared with a case where it is determined that the imaging apparatus is not underwater.

  Thereby, for example, it is possible to suppress the loss of a so-called photo opportunity that may occur under water.

  For example, the electronic device is an imaging device, and a plurality of captured images are acquired during a period in which the imaging device is determined to be underwater, and the imaging device is not underwater after the period. The display control unit displays an icon for instructing to sequentially display the plurality of captured images on the display unit or to sequentially display the plurality of captured images on the display unit. You may display on a display part.

  Thereby, for example, after exiting from the water into the air, the user can confirm the captured image without requiring a complicated operation.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the electronic device which contributes to the visibility improvement in water.

1 is a schematic overall block diagram of an imaging apparatus according to an embodiment of the present invention. It is a schematic exploded view of the display part shown by FIG. It is a partial block diagram of the imaging device shown in FIG. It is a figure for demonstrating the display relevant information input into the display control part of FIG. FIG. 4 is a diagram (a) illustrating an example of an input image to the display control unit in FIG. 3 and a diagram (b) illustrating an example of a display image based on the input image. It is a figure which concerns on 1st Example of this invention and shows the display image at the time of non-underwater determination, and the display image at the time of underwater determination. It is a figure which concerns on 2nd Example of this invention and shows the display image at the time of non-underwater determination, and the display image at the time of underwater determination. It is a figure which shows a mode that the color of the specific part of an icon is changed concerning 2nd Example of this invention. It is a partial block diagram of the imaging device which concerns on 3rd Example of this invention. It is a figure which concerns on 4th Example of this invention and shows the relationship between a preview period, a postview period, and the imaging | photography time of a target image. It is a figure which shows the imaging | photography state of the object image assumed in 5th Example of this invention.

  Hereinafter, an example of an embodiment of the present invention will be specifically described with reference to the drawings. In each of the drawings to be referred to, the same part is denoted by the same reference numeral, and redundant description regarding the same part is omitted in principle. In addition, in this specification, for the sake of simplification of description, the names of information, physical quantities, state quantities or members, etc. corresponding to the symbols or signs are described by marking the symbols or signs referring to information, physical quantities, state quantities or members, etc. May be omitted or abbreviated.

  FIG. 1 is a schematic overall block diagram of an imaging apparatus 1 according to an embodiment of the present invention. The imaging device 1 is a digital video camera that can capture and record still images and moving images. However, the imaging apparatus 1 may be a digital still camera that can capture and record only still images. The imaging device 1 may be mounted on a mobile terminal such as a mobile phone. The imaging device 1 includes an imaging unit 11, a microphone unit 12, a main control unit 13, an internal memory 14, a display unit 15, a recording medium 16, an operation unit 17, and a speaker unit 18.

  The imaging unit 11 includes an optical system including a plurality of lenses and an aperture, and a solid-state imaging device including a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) image sensor. In the imaging unit 11, the solid-state imaging device photoelectrically converts the optical image of the subject in the imaging region that has entered through the optical system, and outputs an electrical signal obtained by the photoelectric conversion to the main control unit 13 as an image signal. . As described above, the imaging unit 11 captures a subject in the imaging region using the solid-state imaging device, and outputs an image signal in the imaging region obtained by the imaging. The imaging area refers to an area in real space that falls within the angle of view in imaging by the imaging unit 11. The imaging region can also be called the field of view of the imaging unit 11.

  The microphone unit 12 includes one or a plurality of microphones. The microphone unit 12 collects sound arriving at the microphone unit 12 from the periphery of the imaging apparatus 1 using one or a plurality of microphones, and outputs an acoustic signal obtained by the sound collection to the main control unit 13. More specifically, in the microphone unit 12, one or a plurality of microphones converts sound arriving at the microphone unit 12 from the periphery of the imaging device 1 into an electrical signal, and the electrical signal is sent to the main control unit 13 as an acoustic signal. Output.

  The main control unit 13 includes a CPU (Central Processing Unit) and the like, and comprehensively controls the operation of each part in the imaging apparatus 1. The main control unit 13 can perform various image signal processing (digitization, signal amplification, noise reduction processing, demosaicing processing, signal compression processing, etc.) on the output image signal of the imaging unit 11 and a microphone. Various acoustic signal processing (digitization, signal amplification, noise reduction processing, directivity control processing, signal compression processing, etc.) can be performed on the output acoustic signal of the unit 12.

  The internal memory 14 is formed of SDRAM (Synchronous Dynamic Random Access Memory) or the like, and temporarily stores various types of information (including image signals and acoustic signals) generated in the imaging apparatus 1. The display unit 15 is a display device having a display screen such as a liquid crystal display panel, and displays a photographed image by the imaging unit 11, a recorded image on the recording medium 16, and the like under the control of the main control unit 13. In this specification, when it is simply referred to as a display and a display screen, they refer to a display and a display screen in the display unit 15. The recording medium 16 is a non-volatile memory such as a card-like semiconductor memory or a magnetic disk, and records various types of information (including image signals and acoustic signals) under the control of the main control unit 13. The operation unit 17 receives various operations from the user. The content of the operation on the operation unit 17 is transmitted to the main control unit 13. The speaker unit 18 includes one or a plurality of speakers, and outputs an arbitrary acoustic signal as sound under the control of the main control unit 13.

  In the present specification, an image signal of a certain image may be simply referred to as an image. Therefore, for example, generation, acquisition, recording, modification, modification, editing, or storage of a still image means generation, acquisition, recording, modification, modification, editing, or storage of an image signal of the still image.

  The display unit 15 has a function as a touch panel, and the display unit 15 can also be called a touch panel. FIG. 2 is a schematic exploded view of the display unit 15. The display unit 15 is provided with a display screen 51 formed of a liquid crystal display or the like, and a touch detection unit 52 that detects a position where the operating body touches the display screen 51 (a position where pressure is applied). . The user can give a specific instruction to the imaging apparatus 1 by touching the display screen 51 of the display unit 15 with an operating tool. An operation by touching the display screen 51 with an operating body is referred to as a touch panel operation. A contact position between the operating tool and the display screen 51 is referred to as a touch position. When the operating body is touching the display screen 51, the touch detection unit 52 outputs touch position information indicating the touched position (ie, touch position) to the main control unit 13 in real time. The operating body is, for example, a user's finger or a pen. In the following, it is assumed that the operating tool is a user's finger. The display on the display unit 15 and the display on the display screen 51 have the same significance.

  The operation unit 17 may be provided with a mechanical button or lever (not shown). In order to distinguish a user operation on the mechanical button or lever provided in the operation unit 17 from a touch panel operation, a button is provided. Called operation.

  The operation mode of the imaging apparatus 1 includes a shooting mode in which an image (still image or moving image) can be shot and recorded, and an image (still image or moving image) recorded on the recording medium 16 is reproduced and displayed on the display unit 15. Playback mode to be included. The main control unit 13 determines the operation mode of the imaging device 1 according to a touch panel operation or a button operation.

  The imaging device 1 is waterproofed so that the imaging device 1 can be used even under water. And the imaging device 1 has the characteristic function to change the display content of the display part 15 according to whether the imaging device 1 is underwater. FIG. 3 shows a block diagram of a portion particularly involved in realizing this characteristic function. The underwater determination unit 61 and the display control unit 62 can be provided in the main control unit 13 of FIG.

  The underwater determination unit 61 determines whether or not the imaging device 1 is underwater (that is, determines whether or not the imaging device 1 is located underwater), and includes determination result information indicating the determination result. Output. The underwater determination unit 61 can determine whether or not the imaging device 1 is underwater using any known method (for example, JP 2010-130423 A). For example, the underwater determination unit 61 can determine whether the imaging device 1 is underwater based on the output image signal of the imaging unit 11, the output acoustic signal of the microphone unit 12, or both. Alternatively, for example, a pressure sensor (not shown) that detects the pressure applied to the casing of the imaging device 1 is provided in the underwater determination unit 61, and the underwater determination unit 61 is configured so that the imaging device 1 is underwater based on the detection result of the pressure sensor. It may be determined whether it is below. Or for example, according to the touch panel operation or button operation by a user, the underwater determination part 61 may determine whether the imaging device 1 is under water. In this case, for example, whether or not the imaging device 1 is underwater is transmitted to the imaging device 1 by a user via a touch panel operation or button operation, and the underwater determination unit 61 determines that the imaging device 1 is underwater based on the transmission content. It may be determined whether or not.

  The determination of the underwater determination unit 61 when it is determined that the imaging device 1 is underwater is called underwater determination, and the determination of the underwater determination unit 61 when it is determined that the imaging device 1 is not underwater is non-underwater determination. Call it. The state in which the imaging device 1 is underwater includes a state in which the entire imaging device 1 is present in the water, and the state in which the imaging device 1 is not underwater indicates that the entire imaging device 1 is present in the air. Including the state. Therefore, it can be said that the underwater determination unit 61 determines whether the imaging device 1 exists in water or in the air, and outputs determination result information indicating the determination result. Correspondingly, it can be said that determining that the imaging device 1 is present in the water is an underwater determination, and determining that the imaging device 1 is present in the air is a non-underwater determination. I can say that.

  The display control unit 62 can display an input image on the display unit 15 and can display an image corresponding to the display related information and the determination result information from the underwater determination unit 61 on the display unit 15 (for details). Later). The displayed input image can be changed according to the display related information and the determination result information (details will be described later).

  The input image refers to a two-dimensional image based on the output image signal of the imaging unit 11 that is an image obtained by imaging of the imaging unit 11. Therefore, the input image may be called a captured image. In the process of generating the input image, predetermined image processing (digitization, signal amplification, noise reduction processing, demosaicing processing, etc.) can be performed on the output image signal of the imaging unit 11. The image signal of the input image may be directly supplied from the imaging unit 11 to the display control unit 62 without going through the internal memory 14 and the recording medium 16, or displayed from the imaging unit 11 through the internal memory 14 or the recording medium 16. It may be supplied to the controller 62.

  The display related information includes operation state information, shooting setting information, and system information, as shown in FIG. The operation state information is information indicating the operation state of the imaging apparatus 1. The operation state information includes information indicating what the operation mode of the imaging apparatus 1 is, information indicating whether a moving image is currently being captured and recorded when the operation mode of the imaging apparatus 1 is the imaging mode, and the like. including. The shooting setting information is information indicating shooting conditions and recording conditions of the input image. For example, the shooting setting information includes information indicating the number of recorded pixels of the input image when the input image is recorded on the recording medium 16, information indicating the F value at the time of shooting the input image, and information indicating on / off of the camera shake correction function. Etc. The system information includes information indicating the remaining amount of the battery serving as the drive source of the imaging device 1, information indicating the number of images that can be recorded on the recording medium 16, and the like. In addition to the above, various information that can affect the display content of the display unit 15 is included in the display related information.

The display control unit 62 can display one or more icons corresponding to the display related information on the display unit 15 together with the input image. An image 310 in FIG. 5A is an example of an input image in the shooting mode. An image 320 in FIG. 5B is a display image based on the input image 310. The display image refers to an image displayed on the display screen 51 of the display unit 15. The display image 320 is an image obtained by adding icons A ₁ , A ₂ , A ₃ , B ₁ and B ₂ to the input image 310. More specifically, the display image 320 can be formed by superimposing icons A ₁ , A ₂ , A ₃ , B ₁ and B ₂ on the input image 310. The icons to be displayed and the input image may be displayed side by side on the display screen 51 in the left-right or up-down direction (the same applies to other display images described later).

The icon A ₁ indicates to the user that recording is currently being performed (more specifically, that an image signal of a moving image captured by the imaging unit 11 is being recorded on the recording medium 16). Has a function to inform. In the imaging mode, the imaging unit 11 can sequentially capture input images at a predetermined frame period, and a moving image is formed by a plurality of input images arranged in time series.
The icon A ₂ has a function of notifying the user of the remaining amount of the battery as the drive source of the imaging device 1.
Icon A ₃ has a function of notifying the image size of the input image to be recorded on the recording medium 16 (recording image size of the input image to the recording medium 16) to the user.

Icon B ₁ represents, has a function of receiving the shooting instruction of a still image by the user. The user can give a still image shooting instruction to the imaging apparatus 1 by pressing the icon B ₁ (or an icon B _1A , B _1B, or B _1C described later) with a finger. When a still image shooting instruction is given to the imaging apparatus 1, the imaging apparatus 1 uses the imaging unit 11 to capture one or a plurality of still images, and the one or a plurality of still images obtained thereby. Are recorded on the recording medium 16. The still image obtained in accordance with the shooting instruction is a type of input image.
Icon B ₂ has a function of accepting a menu display instruction from the user. The user can provide a menu display instruction to the image pickup apparatus 1 by pressing the icon B ₂ at the finger. When a menu display instruction is given to the imaging apparatus 1, the display control unit 62 displays a menu including a plurality of items on the display screen 51. The user can give various instructions to the imaging apparatus 1 by performing a predetermined touch panel operation while the menu is displayed.

While the icons A _{1 to} A ₃ are simply icons for notifying the user of information, the icons B ₁ and B ₂ function as buttons for receiving specific instructions from the user (the icon B ₃ described later is also used). The same). Therefore, the icons B ₁ and B ₂ can also be called button icons or buttons on the display screen 51 (buttons on the touch panel). Below the icon _{B 3} and described below is a modification of the icon _{B 1} icon _{B 1A,} The same applies to the _{B 1B} and _{B 1C} (see FIG. 7 (a) ~ (f) ). Hereinafter, each of the icons B ₁ , B _1A , B _1B and B _1C is also referred to as a shutter button icon.

  Hereinafter, in the first to fifth embodiments, a display control method according to the determination result information or a technique related thereto will be described. As long as there is no contradiction, it is also possible to carry out by combining a plurality of embodiments among the first to fifth embodiments. The description of the first to fifth embodiments is based on the premise that the operation mode of the imaging apparatus 1 is set to the shooting mode, but the operation mode of the imaging apparatus 1 is set to the reproduction mode. It is also possible to use the methods of the first to fifth embodiments.

<< First Example >>
A first embodiment will be described. Underwater, the visibility of the display content by the user decreases. Considering this, the number N ₁ of icons imaging apparatus 1 is displayed on the display unit 15 when under water is, the number N of icons imaging apparatus 1 is displayed on the display unit 15 when not under water _The display control unit 62 changes the display content of the display unit 15 according to the determination result information so as to be less than ₂ . The number N ₁ is the number of icons is determined by the water determination unit 61 is displayed on the display unit 15 when a water determination, the number N _2, when the determination by the water determination unit 61 is a non-water determination This is the number of icons displayed on the display unit 15.

  Specifically, for example, when the image signal of the input image 310 of FIG. 5A is given to the display control unit 62, the display control unit 62 is shown when the determination by the underwater determination unit 61 is non-underwater determination. 6 (a) is displayed on the display unit 15, while when the determination by the underwater determination unit 61 is underwater determination, the display image 420 of FIG. 6 (b) is displayed on the display unit 15.

The display image 410 is the same as the display image 320 in FIG. The display image 420 is an image obtained by adding icons A ₁ , B _1, and B ₃ to the input image 310. More specifically, the display image 420 can be formed by superimposing icons A ₁ , B _1, and B ₃ on the input image 310. In the example of FIGS. 6A and 6B, N ₁ = 3 and N ₂ = 5.

Icon B ₃ is an icon for receiving the information display instruction from the user. The user can provide an information display instruction to the image pickup apparatus 1 by pressing the icon B ₃ at the finger. When the information display instruction is given to the imaging apparatus 1, the display control unit 62 changes the display image on the display unit 15 from the display image 420 to the display image 410. Therefore, even when the user uses the imaging device 1 under water, the user can make the display content the same as that in the air as necessary. However, the image displayed when the information display instruction is given to the imaging apparatus 1 may be different from the display image 410.

The display control unit 62 may change the type of icon displayed on the display unit 15 between when the imaging device 1 is underwater and when the imaging device 1 is not underwater. The same applies to other examples described later. In the example of FIG. 6 (a) and (b), it can be said that the icon B ₂ that has been displayed under determined non-water is changed to an icon B ₃ under determination water.

  Underwater, the visibility of the display content by the user is reduced. Therefore, when a large number of icons are displayed, it may be difficult for the user to confirm the display content or to perform a touch panel operation. According to the first embodiment, since the number of display icons is reduced underwater, such an adverse effect is suppressed. In other words, visibility and operability under water can be improved.

<< Second Example >>
A second embodiment will be described. In the second embodiment, the display control unit 62 causes the display unit 15 to display one or more icons including a specific icon, and depending on the determination result information, the imaging device 1 is underwater and not underwater. (That is, between the case where the underwater determination unit 61 makes an underwater determination and the case where the underwater determination makes a non-underwater determination).

  The display control unit 62 can display one or more icons including the specific icon on the display unit 15 together with the input image. All icons displayed on the display unit 15 may be specific icons, or some of the icons displayed on the display unit 15 may be specific icons. However, it is desirable to include an icon (for example, a shutter button icon) that is frequently subjected to the touch panel operation in the specific icon. “The display method of the specific icon is different between when the imaging device 1 is underwater and when it is not underwater” means that the specific icon is displayed based on the case where the imaging device 1 is not underwater. This corresponds to “changing the display method when the imaging apparatus 1 is underwater”. By appropriately performing this change, the visibility and / or operability of the icon under water can be improved.

  The change in the display method of the specific icon may be a change in the display size, display position, shape, pattern, color, brightness, flashing presence / absence of the specific icon, or a combination thereof. Specific change methods J1 to J4 for changing the display method of the specific icon will be described below. In the description of the changing methods J1 to J4, it is assumed that the image signal of the input image 310 in FIG. As long as there is no contradiction, it is possible to implement a combination of a plurality of changing methods among the changing methods J1 to J4.

――Change method J1――
The changing method J1 will be described. In the change method J1, the display control unit 62 displays the display image 450 of FIG. 7A on the display unit 15 when the determination by the underwater determination unit 61 is non-underwater determination, while the determination by the underwater determination unit 61 is underwater. When it is determined, the display image 460 of FIG. 7B is displayed on the display unit 15. The display image 450 is the same as the display image 320 in FIG.

The display image 460 is an image obtained by adding icons A _1A , B _1A and B ₃ to the input image 310. More specifically, the display image 460 can be formed by superimposing the icons A _1A , B _1A and B ₃ on the input image 310. 7A and 7B, the method of the first embodiment (a method of reducing the number of display icons in water) is applied in addition to the changing method J1.

Icons A _1A and B _1A have the same functions as icons A ₁ and B ₁ , respectively. However, the display size of the icon _{A 1A} is larger than the display size of the icon _{A 1,} the display size of the icon _{B 1A} is greater than the display size of the icon _{B 1.} The icon display size refers to the size of the icon on the display screen 51. By increasing the icon display size underwater as in the changing method J1, the visibility and operability of the icon underwater can be improved.

――Change method J2――
The changing method J2 will be described. In the change method J2, the display control unit 62 displays the display image 450 of FIG. 7A on the display unit 15 when the determination by the underwater determination unit 61 is non-underwater determination, while the determination by the underwater determination unit 61 is underwater. When the determination is made, the display image 465 of FIG. 7C or the display image 470 of FIG.

Each of the display images 465 and 470 is an image obtained by adding icons A _1A , B _1A and B ₃ to the input image 310. More specifically, the display image 465 or 470 can be formed by superimposing the icons A _1A , B _1A and B ₃ on the input image 310. In addition, in addition to the changing method J2, the changing method J1 and the method of the first embodiment are applied to the examples of FIGS. 7 (a), (c), and (d).

The types of icons displayed on the display screen 51 are the same between the display images 460, 465, and 470. However, the display positions of some icons on the display screen 51 are different between the display images 460, 465, and 470. At least the display position of the shutter button icon differs between the display images 450 and 470. That is, the display position of the shutter button icon B ₁ on the display image 450, the display position of the shutter button icon B _1A on the display image 470 are different from each other.

In each of the display images 465 and 470, the display positions of the icons B _1A and B ₃ are concentrated on the right half of the display screen 51 so that the operation with the right hand can be easily performed. The shutter button icon B _1A on the display image 470, as easily do the right hand thumb, are positioned on the lower right side of the display screen 51. The display images 465 and 470 are assumed to be a touch panel operation by the user with the right hand. However, when it is known in advance that the user performs the touch panel operation with the left hand by a setting operation or the like in advance, the display images 465 and 470 are displayed. In each of the images 465 and 470, the display positions of the icons B _1A and B ₃ may be concentrated on the left half of the display screen 51. According to the changing method J2, operability under water can be improved.

――Change method J3――
The changing method J3 will be described. In the change method J3, the display control unit 62 displays the display image 450 of FIG. 7A on the display unit 15 when the determination by the underwater determination unit 61 is non-underwater determination, while the determination by the underwater determination unit 61 is underwater. When the determination is made, the display image 475 of FIG.

The display image 475 is an image obtained by adding icons A _1A , B _1B and B ₃ to the input image 310. More specifically, the display image 475 can be formed by superimposing icons A _1A , B _1B and B ₃ on the input image 310. In addition, in addition to the changing method J3, the changing methods J1 and J2 and the method of the first embodiment are applied to the examples of FIGS. 7A and 7E.

The icon B _1B is a shutter button icon and has the same function as the icon B ₁ . Although not clear from FIG. 7 (e), the display control unit 62 blinks the shutter button icon _B1B on the display screen 51 when the underwater determination is made (when the non-underwater determination is made, Does not blink like this). In addition to or instead of such blinking, the display control unit 62 may increase the brightness of the icon B _1B higher than the brightness of the icon B ₁ . The change method J3 can also be applied to icons other than the shutter button icon. According to the change method J3, the visibility of the icon under water can be improved.

――Change method J4――
The changing method J4 will be described. In the changing method J4, when the determination by the underwater determination unit 61 is non-underwater determination, the display control unit 62 displays the display image 450 of FIG. 7A on the display unit 15, while the determination by the underwater determination unit 61 is underwater. If it is determined, the display image 480 of FIG.

Display image 480 is an image in which icons A _1C , B _1C, and B ₃ are added to input image 310. More specifically, the display image 480 can be formed by superimposing the icons A _1C , B _1C, and B ₃ on the input image 310. 7A and 7F, the changing methods J1 and J2 and the method of the first embodiment are applied in addition to the changing method J4.

Icons A _1C and B _1C have the same functions as icons A ₁ and B ₁ , respectively. However, the display control unit 62 causes different color of the icon _{B 1C} icon _{B 1} and color causes different color of the icon _{A 1C} and the color of the icon _{A 1.} At this time, considering that red light is easily attenuated under water and light having a wavelength from green to blue is easily transmitted, colors having wavelengths of about 400 to 550 nanometers are icons A _1C and B _1C . The colors of the icons A _1C and B _1C are determined so as to be the dominant color. According to the change method J4, the visibility of the icon under water can be improved.

A more specific color arrangement example will be described by focusing on the shutter button icon.
The display control unit 62 uses the shutter button when the red component ratio of the shutter button icon (that is, the icon B _1C ) when the determination by the underwater determination unit 61 is underwater determination is non-underwater determination. The color of the shutter button icon is changed according to the determination result of the underwater determination unit 61 so as to be smaller than the red component ratio of the icon (that is, the icon B ₁ ). The red component ratio of the shutter button icon refers to the ratio of the red component that occupies the entire color components (for example, red, green, and blue components) of the shutter button icon.
Further, the operation of the display control unit 62 for realizing the change method J4 may be expressed as follows. When the determination by the underwater determination unit 61 is non-underwater determination, the display control unit 62 uses the shutter button icon (ie, the icon B ₁ ) when the determination by the underwater determination unit 61 is underwater determination. That is, the color of the shutter button icon is changed according to the determination result of the underwater determination unit 61 so that it is closer to red than the color of the icon B _1C ). The color of the icon B ₁ is closer to the red than the color of the icon B _1C, the wavelength of the color of the icon B ₁ is mean closer to the wavelength of the red than the wavelength of the color of the icon B _1C.

For example, as shown in FIG. 8, when the color of the specific part in the icon B ₁ is red, the icon B _1C can be formed by changing the color of the specific part in the icon B ₁ from red to non-red. can, thereby, the red component ratio in the icon B _1C, along with less than the red component ratio in the icon B _1, the color of the icon B ₁ represents closer to red than the color of the icon B _1C.
8, the hatched area corresponds to a particular portion of the red to be contained in the icon B _1, dot area corresponds to a specific portion of the non-red to be encapsulated in the icon B _1C. Non-red refers to a color not classified as red, for example, a color classified as green or blue, or a color having a wavelength in the range of 400 to 550 nanometers.

For example, when the color of the specific part in the icon B ₁ is white, the icon B _1C can be formed by changing the color of the specific part in the icon B ₁ from white to non-red, with red component ratio in the icon B _1C is less than the red component ratio in the icon B _1, the color of the icon B ₁ represents closer to red than the color of the icon B _1C.
White, red, because it is a mixed color of green and blue, a specific portion (the white of the particular portion) in the icon B ₁ represents more red component than a specified portion of the icon B _1C (specific portion of the non-red) Including many. Thus, the color of the icon B ₁ which encloses a certain portion of the white, than the color of the icon B _1C having a specific portion of the non-red say close to red.

<< Third Example >>
A third embodiment will be described. As described above, red light is easily attenuated under water. Therefore, when the input image is displayed on the display unit 15 as it is underwater, the input image looks more bluish than when the input image is viewed in the air (red component appears to be attenuated). In the third embodiment, a color correction processing unit 63 shown in FIG. 9 is used in order to reduce such a difference in image appearance between air and water. The color correction processing unit 63 can be provided in the main control unit 13 of FIG.

  The color correction processing unit 63 performs color correction processing for increasing the red component on the input image. For clarity of explanation, the input image before color correction processing is called an original image, and the input image after color correction processing is called a color correction image. In the color correction processing, the red signal component in the image signal of the original image is increased, and an image having the increased image signal is generated as a color correction image. When the image signal of each pixel of the original image is an RGB image signal, the red signal component to be increased is the R signal of each pixel of the original image. An increase amount for the red signal component can be set in advance. Or the underwater determination part 61 may also detect the underwater depth of the imaging device 1, and the color correction process part 63 may determine the increase amount with respect to a red signal component according to the detected underwater depth. The underwater depth of the imaging device 1 is the depth of the position of the imaging device 1 as seen from the water surface.

  The display control unit 62 selectively displays the original image or the color correction image on the display unit 15 according to the determination result information from the underwater determination unit 61. Specifically, the display control unit 62 displays the original image on the display unit 15 when the determination by the underwater determination unit 61 is non-underwater determination, and displays the color correction image when the determination by the underwater determination unit 61 is underwater determination. It is displayed on the display unit 15 (of course, an icon may be displayed together with the original image or the color correction image; the same applies to other embodiments described later). As a result, when the determination by the underwater determination unit 61 is underwater determination, the red component included in the display image (that is, the color correction image) is the display image (that is, when the determination by the underwater determination unit 61 is non-underwater determination). , More than the red component contained in the original image).

  Thereby, the difference in the appearance of the image in the air and in the middle of water can be reduced. The input image given to the display control unit 62 and the color correction processing unit 63 may be an input image taken during a preview period described later or a target image described later.

<< 4th Example >>
A fourth embodiment will be described. In the shooting mode, the user can give a still image shooting instruction to the imaging apparatus 1 by pressing the shutter button icon (B ₁ , B _1A , B _1B or B _1C ) with a finger. As shown in FIG. 10, after the power of the imaging apparatus 1 is turned on at time T _i, imaging instruction of the i-th still image is applied to the imaging apparatus 1, imaging instruction of the i-th still image It is assumed that the input image photographed according to the above is acquired as the target image TI [i]. The main control unit 13 causes the target image TI [i] to be recorded on the recording medium 16. i is an integer, and time T _{i + 1} is a time later than time T _i . The time T _i corresponds to the shooting time of the target image TI [i].

A period having a predetermined time length starting from the photographing time of the target image is referred to as a post-view period, and in particular, a post-view period starting from time T _i is referred to by a symbol PST [i]. The time length of each post-view period is called post-view time. In addition, it is assumed that a period other than the post-view period is a preview period among all periods in which the operation mode of the imaging apparatus 1 is set to the shooting mode.

  In the shooting mode, the imaging unit 11 can sequentially capture input images at a predetermined frame period. In the preview period, the display control unit 62 can update and display the original image or the color correction image based on the sequentially obtained input images on the display unit 15 (in other words, a plurality of time-series aligned plural images). An original image or a plurality of original images arranged in time series can be displayed on the display unit 15 as a moving image). The user can check the state of the subject and the shooting composition in real time by looking at the display screen 51 during the preview period.

  On the other hand, in the post-view period PST [i], the display control unit 62 causes the display unit 15 to display an original image as the target image TI [i] or a color correction image based on the target image TI [i]. By viewing the display screen 51 during the post-view period, the user can confirm the target image that has been shot in accordance with the operation on the shutter button icon. However, underwater, it is considered that there are relatively many opportunities to shoot a moving subject (for example, fish), and a relatively long post-view time tends to cause a so-called lost photo opportunity. On the other hand, due to restrictions on staying time in water, it is considered that there is little demand for confirming the captured target image carefully underwater.

Considering this, in the fourth embodiment, when it is determined that the imaging device 1 is underwater, the post-view time is reduced compared to when it is determined that the imaging device 1 is not underwater. That is, the display control unit 62 sets the post-view time (time length) L _A when the determination by the water determination unit 61 is a non-water determination, post when the determination by the water determination unit 61 is a water determination the view time (time length) is set to L _B. Time _{L B} is shorter than the time _{L A,} for example, the time _{L A} is and time _{L B} a 2 sec 1 sec. Time L _B may be zero.

Because different time L _A and L _B are each other in a case where the determination by the water determination unit 61 is a non-water determined and if it is water determination, the display content of the display unit 15 are different from each other (in particular, the second half of the post-view period The display contents of the display unit 15 are different from each other around the part). Thus, differences in post-view time (difference between time L _A and L _B) can be said to belong to the change in the display contents of the display unit 15.

  According to the fourth embodiment, it is possible to suppress a so-called lost photo opportunity that may occur underwater.

<< 5th Example >>
A fifth embodiment will be described. In the fifth embodiment, as shown in FIG. 11, in the period between time T _B after time T _A and the time T _A is determined by the water determination unit 61 is water determination, and the time T _B after It is assumed that the determination by the underwater determination unit 61 is a non-underwater determination. Further, according to the method described in the fourth embodiment, during the period in which the imaging apparatus 1 is under water (i.e., between the time _{T A} and _{T B),} the target image TI [1] ~TI [m] is captured (M is an integer of 2 or more) It is assumed that the target images TI [1] to TI [m] are recorded on the recording medium 16.

  The main control unit 13 generates an image file for each target image in the recording medium 16 and stores the image signal of the target image in the image file to record the target image on the recording medium 16. At this time, the additional information of the target image TI [i] can also be stored in the image file storing the image signal of the target image TI [i], and the target image TI [i] It is preferable to include determination information indicating whether or not the image is taken in step S2. The determination information is generated based on the determination result information from the underwater determination unit 61. In the example of FIG. 11, based on the determination information of the target images TI [1] to TI [m], the main control unit 13 (display control unit 62) determines that each of the target images TI [1] to TI [m] It can be recognized that the image was taken in water.

The time T _B as a boundary, when the determination by the water determination unit 61 switches to the non-water determined from water determination, the display control unit 62, period determination by water determination unit 61 was water determination (i.e., time T _A The target images TI [1] to TI [m] photographed during the period between ( _B ) and TB) are sequentially read out from the recording medium 16, and the target images TI [1] to TI [m] are sequentially displayed in time series order. An underwater shot image slide show to be displayed on the display unit 15 is executed.

  The underwater captured image slide show may be executed promptly without being operated by the user after the determination by the underwater determination unit 61 is switched from underwater determination to non-underwater determination.

  Alternatively, an underwater photographed image slide show may be executed after waiting for a predetermined operation by the user. In this case, for example, after the display control unit 62 detects that the determination by the underwater determination unit 61 has switched from underwater determination to non-underwater determination, a slide show icon (not shown) for instructing execution of an underwater captured image slide show. Is displayed on the display screen 51, and when the user presses the slide show icon with a finger, the underwater shot image slide show is actually executed.

  When the postview time under water is set short as in the fourth embodiment, the user cannot sufficiently confirm the target image taken underwater. Even if the post-view time is unchanged, the visibility of the display screen 51 underwater is originally inferior to that in the air, or the user has time to confirm the target image underwater. Since it is difficult to ensure, it is difficult for the user to sufficiently confirm the target image underwater. According to the above-described method, the user can confirm the target image without requiring a complicated operation after exiting from water to air (that is, in an environment suitable for confirming the target image). It becomes.

<< Deformation, etc. >>
The embodiment of the present invention can be appropriately modified in various ways within the scope of the technical idea shown in the claims. The above embodiment is merely an example of the embodiment of the present invention, and the meaning of the term of the present invention or each constituent element is not limited to that described in the above embodiment. The specific numerical values shown in the above description are merely examples, and as a matter of course, they can be changed to various numerical values. As annotations applicable to the above-described embodiment, annotation 1 and annotation 2 are described below. The contents described in each comment can be arbitrarily combined as long as there is no contradiction.

[Note 1]
The imaging apparatus 1 in FIG. 1 can be configured by hardware or a combination of hardware and software. When the imaging apparatus 1 is configured using software, a block diagram of a part realized by software represents a functional block diagram of the part. A function realized using software may be described as a program, and the function may be realized by executing the program on a program execution device (for example, a computer).

[Note 2]
The technique of the above-described embodiment can be realized by an arbitrary electronic device. The imaging device 1 is also a kind of electronic device, and the electronic device can be a mobile terminal, a game device, a personal computer, a mobile phone, an electronic book reader, an electronic dictionary, or the like.

DESCRIPTION OF SYMBOLS 1 Imaging device 11 Imaging part 15 Display part 51 Display screen 52 Touch detection part 61 Underwater determination part 62 Display control part 63 Color correction process part

Claims (8)

In an electronic device equipped with a display unit,
An underwater determination unit for determining whether the electronic device is underwater; and
An electronic apparatus comprising: a display control unit that changes display content of the display unit according to a determination result of the underwater determination unit. The display control unit displays one or more icons including a specific icon on the display unit, and according to a determination result of the underwater determination unit, between when the electronic device is underwater and when not underwater The electronic apparatus according to claim 1, wherein display methods of the specific icons are different from each other. The display control unit is configured so that the ratio of the red component in the specific icon is less when the electronic device is underwater than when the electronic device is not underwater. The electronic device according to claim 2, wherein the color of the specific icon is changed according to a determination result. The display control unit is configured such that the number of icons displayed on the display unit when the electronic device is underwater is larger than the number of icons displayed on the display unit when the electronic device is not underwater. The electronic device according to any one of claims 1 to 3, wherein the display content is changed in accordance with a determination result of the underwater determination unit so as to be reduced. The display control unit has a red component included in the display content when the electronic device is under water, and is larger than a red component included in the display content when the electronic device is not under water. The electronic device according to claim 1, wherein the display content is changed according to a determination result of the underwater determination unit. The electronic device is an imaging device,
A color correction processing unit that performs a color correction process for increasing a red component on an input image obtained by shooting;
When it is determined that the imaging device is not underwater, the display control unit displays the input image before the color correction processing on the display unit, and when the imaging device is determined to be underwater 6. The electronic apparatus as an imaging apparatus according to claim 5, wherein the input image after the color correction processing is displayed on the display unit. The electronic device is an imaging device,
The display control unit displays a captured image or an image based on the captured image on the display unit for a post-view time after capturing the image,
The post-view time is decreased when it is determined that the imaging device is underwater, compared to a case where it is determined that the imaging device is not underwater. An electronic apparatus as an imaging apparatus according to any one of the above. The electronic device is an imaging device,
When a plurality of captured images are acquired during a period in which it is determined that the imaging device is underwater, and it is determined that the imaging device is not underwater after the period,
The display control unit causes the display unit to display the plurality of captured images sequentially, or causes the display unit to display an icon for instructing the display unit to sequentially display the plurality of captured images. The electronic device as an imaging device according to claim 1, wherein the electronic device is an imaging device.