JP2014137556A - Imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging device capable of preventing a camera operation not intended by a user from being inadvertently performed in an imaging device having a touch input section provided.SOLUTION: In accordance with a touch operation to a touch input section 2321, a microcomputer 230 generates a touch pattern, and compares the generated touch pattern with a touch pattern preliminary stored in a Flash memory 236. As a result of the comparison, when the touch pattern is similar, the microcomputer 230 nullifies a touch operation to the touch input section 2321 thereafter.

Description

  The present invention relates to an imaging device including a touch input unit.

  2. Description of the Related Art Conventionally, an imaging device such as a digital camera provided with a touch input unit (touch panel) is known. In an imaging apparatus including a touch input unit, a user can specify a subject using the touch input unit, and execute processing such as AE (automatic exposure control) and AF (automatic focus control) on the subject. . As one of technologies related to an imaging apparatus including such a touch input unit, for example, Patent Literature 1 derives a contact area from a distribution of contact positions when a user's fingertip contacts the touch input unit. Different camera controls according to the contact area can be executed.

JP 2007-93967 A

  The technique of Patent Document 1 determines whether to prepare for shooting or to perform shooting with AE control, AF control, or the like based on the contact area when touched. For this reason, when walking with the imaging device held around the neck, the camera may touch the body and photographing may be performed without permission.

  The present invention has been made in view of the above circumstances, and provides an imaging apparatus capable of preventing a camera operation from being arbitrarily performed at an unintended timing of a user in an imaging apparatus having a touch input unit. For the purpose.

  In order to achieve the above object, an imaging device of one embodiment of the present invention includes a touch input unit that detects whether or not at least a touch operation is performed, and a process after the touch operation is detected by the touch input unit. A touch pattern generation unit that generates a touch pattern using time and a detection result of the touch input unit during the elapsed time, and a comparison that compares the touch pattern generated by the touch pattern generation unit with a predetermined touch pattern And a control unit that prohibits a touch operation by the touch input unit when the touch pattern generated by the touch pattern generation unit and the predetermined touch pattern are similar to each other. To do.

  According to the present invention, it is possible to provide an imaging apparatus capable of preventing a camera operation from being arbitrarily performed at an unintended timing of a user in an imaging apparatus having a touch input unit.

1 is a block diagram illustrating a configuration of a digital camera as an example of an imaging apparatus according to an embodiment of the present invention. It is a figure shown about touch operation. It is a figure which shows the preparation example of the map produced when there exists a weak touch. It is a figure which shows the creation example of the map produced when there exists a strong touch. It is a figure which shows the example of creation of the map produced when there exists a touch to multiple coordinates. 3 is a flowchart showing a main operation of the digital camera according to the embodiment of the present invention. It is a flowchart shown about map operation / lock operation processing. It is a figure which shows the example of the operation button in a map operation / lock operation process. It is a figure shown about the setting operation of a touch pattern. It is a figure which shows the example of a setting of a touch pattern. It is a figure which shows the example of a setting of the touch pattern in the case of the touch input part which cannot detect pressure. It is a figure shown about the setting operation of a touch pattern at the time of using a plurality of detection areas. It is a figure shown about the size change of a map. It is a flowchart shown about AE processing. It is a flowchart shown about image processing. It is a flowchart shown about special image processing. It is a flowchart shown about reproduction | regeneration / edit processing. It is a figure which shows the example of the file structure of the image file in case a map is recorded. It is a flowchart of the modification which applied the technique of one Embodiment to the expansion live view display. It is a figure which shows the example of a display of expansion live view display. It is a figure shown about the modification which performs designation | designated of an enlargement range and designation | designated of an enlargement factor separately. It is a figure shown about the modification which provides multiple touch input parts and performs designation | designated of an expansion range and designation | designated of an enlargement factor separately. It is a flowchart of the modification which applied the technique of one Embodiment to the production | generation of a combined photograph. It is a figure shown about extraction of the extraction range.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration of a digital camera as an example of an imaging apparatus according to an embodiment of the present invention. A digital camera 1 shown in FIG. 1 is an interchangeable lens digital camera. However, it is not always necessary to be an interchangeable lens digital camera, and a lens-integrated digital camera may be used. Further, the technology of the present embodiment can be applied even to a mobile phone with an imaging function, a mobile terminal with an imaging function, or the like.

  A digital camera 1 shown in FIG. 1 has an interchangeable lens 100 and a camera body 200. The interchangeable lens 100 is configured to be detachable from the camera body 200. When the interchangeable lens 100 is attached to the camera body 200, the interchangeable lens 100 is connected to the camera body 200 so as to be able to communicate. As a result, the interchangeable lens 100 becomes operable according to the control of the camera body 200.

The interchangeable lens 100 includes a lens 102, a diaphragm 104, a driver 106, a microcomputer 108, and a flash memory 110.
The lens 102 is an optical system for condensing a light beam from a subject (not shown) on the image sensor 204 in the camera body 200. The lens 102 may include a plurality of lenses such as a focus lens and a zoom lens.

  The diaphragm 104 is configured to be openable and closable, and adjusts the amount of light incident through the lens 102. The driver 106 has a motor and the like. The driver 106 drives the focus lens and zoom lens in the lens 102 in the optical axis direction and drives the aperture 104 to open and close according to the control of the microcomputer 108.

  The microcomputer 108 is communicably connected to the microcomputer 230 in the camera body 200 via the interface (I / F) 112 when the interchangeable lens 100 is attached to the camera body 200. The microcomputer 108 drives the driver 106 in accordance with control from the microcomputer 230. Further, the microcomputer 108 communicates lens information of the interchangeable lens 100 stored in the flash memory 110 to the microcomputer 230 via the I / F 112.

  The flash memory 110 stores lens information such as aberration information of the lens 102, a program necessary for executing the operation of the interchangeable lens 100, and the like.

  The camera body 200 includes a mechanical shutter 202, an image sensor 204, an analog processing unit 206, an analog / digital (A / D) conversion unit 208, a bus 210, an SDRAM 212, an AE processing unit 214, and an AF processing unit 216. An image processing unit 218, a display driver 220, a display panel 222, an image compression / decompression unit 224, a memory interface (I / F) 226, a recording medium 228, a microcomputer 230, an operation unit 232, A map generation unit 234 and a flash memory 236 are included.

  The mechanical shutter 202 is configured to be movable so that the photoelectric conversion surface of the image sensor 204 is in a light shielding state or an exposed state. The exposure time of the image sensor 204 is adjusted by moving the mechanical shutter 202.

  The image sensor 204 has a photoelectric conversion surface on which a light beam from a subject condensed through the lens 102 is imaged. The photoelectric conversion surface is configured with a plurality of pixels arranged two-dimensionally. A color filter is provided on the light incident side of the photoelectric conversion surface. Such an image sensor 204 converts an image (subject image) corresponding to the light beam formed on the photoelectric conversion surface into an electrical signal (hereinafter referred to as an image signal) corresponding to the light amount and outputs the electrical signal.

  Here, as the imaging device 204, imaging devices having various configurations such as a CCD method and a CMOS method are known. Various color filters such as a Bayer array are also known. In the present embodiment, the configuration of the image sensor 204 is not limited to a specific configuration, and image sensors with various configurations can be used. Further, the image sensor 204 may have an electronic shutter function for electronically controlling the exposure time. In the following description, it is assumed that the image sensor 204 has an electronic shutter function.

  The analog processing unit 206 performs analog processing such as CDS (correlated double sampling) processing and AGC (automatic gain control) processing on the image signal obtained by the image sensor 204. The A / D converter 208 converts the image signal analog-processed by the analog processor 206 into a digital signal (hereinafter referred to as RAW data). Here, the RAW data is “raw” image data before image processing in the image processing unit 218 is performed.

  The bus 210 is a transfer path for transferring various data generated in the camera body 200.

  The SDRAM 212 is a storage unit for temporarily storing various data generated inside the camera body 200. The SDRAM 212 is also used as a buffer memory at the time of image processing in the image processing unit 218. Further, the SDRAM 212 in the present embodiment also has a storage area as the map storage unit 2121. The map storage unit 2121 is a storage area for storing a map in which coordinates indicating a touch position and an intensity corresponding to pressure at the touch position are associated with each other when touch input is performed by a touch input unit 2321 described later. is there. Details of this map will be described later.

  The AE processing unit 214 calculates subject luminance using image data (for example, RAW data). The AF processing unit 216 extracts high-frequency component signals from the image data (for example, RAW data), integrates the extracted high-frequency component signals, and acquires a focus evaluation value for AF.

  The image processing unit 218 performs various kinds of image processing on the RAW data to generate recording image data or display image data. The recording image data or the display image data has different image processing parameters. Here, the image processing performed by the image processing unit 218 is image processing for making the finish of the recording image data or display image data predetermined. The finish here means the appearance and style of the display.

  The image processing unit 218 in this embodiment includes a basic image processing unit 2181 and a special image processing unit 2182.

A basic image processing unit 2181 performs basic image processing necessary for image display and recording on image data. This basic image processing includes, for example, optical black (OB) subtraction processing, white balance (WB) correction processing, synchronization processing, color reproduction processing, luminance change processing, edge enhancement processing, and noise reduction processing.
The optical black subtraction process is a process of subtracting and removing the dark current component (optical black) of the RAW data.
The white balance correction process is a process for correcting the color balance of an image by amplifying each color component of the RAW data by a predetermined gain amount.
In the synchronization processing, image data in which one pixel corresponds to one color component, such as RAW data output via the image sensor 204 corresponding to the Bayer array, is converted into a plurality of color components in one pixel. Is a process of converting to RGB data corresponding to.
The color reproduction process is various processes for making the color reproduction of an image appropriate. As this process, for example, there is a color matrix calculation process. This color matrix calculation process is a process of multiplying RGB data by, for example, a color matrix coefficient corresponding to the white balance mode. In addition, saturation and hue are also corrected as color reproduction processing.
The luminance changing process is a process for converting RGB data into YC (luminance / color difference) data and changing the luminance characteristics of the Y data so as to be suitable for display and recording. Note that as the luminance change processing, the luminance characteristics of the RGB data may be changed.
Edge enhancement processing is performed by multiplying an edge signal extracted from image data (RGB data or YC data) using a bandpass filter or the like by an edge enhancement coefficient, and adding the result to the original image data. This is a process for enhancing an edge (contour) component.
The noise reduction process is a process for removing a noise component in image data (RGB data or YC data) by a coring process or the like.

  The special image processing unit 2182 performs special image processing for giving a special visual effect to the image data (RGB data or YC data). Details of the special image processing will be described later.

  The display driver 220 resizes the display image data obtained by the image processing unit 218 or the display image data obtained by decompressing the recording image data by the image compression / decompression unit 224 according to the display size of the display panel 222. Then, the resized display image data is converted into a video signal and output to the display panel 222. The display panel 222 is, for example, a liquid crystal display (LCD). The display panel 222 displays an image based on the video signal input from the display driver 220.

  At the time of image recording, the image compression / decompression unit 224 performs still image compression processing such as JPEG format or TIFF format on the recording image data obtained by image processing in the image processing unit 218, MPEG format, or H.264 format. H.264 format moving image compression processing is performed. Further, the image compression / decompression unit 224 performs decompression processing on the recording image data subjected to the compression processing at the time of reproducing the image.

  The memory I / F 226 is an interface for the microcomputer 230 or the like to access the recording medium 228. The recording medium 228 is a memory card that is detachably attached to the camera body 200, for example. The recording medium 228 records image files and the like. The image file is a file in which header information is added to the recording image data compressed by the image compression / decompression unit 224. The recording medium 228 may be fixed to the camera body 200 (it may not be detachable).

  The microcomputer 230 comprehensively controls the operation of each part of the camera body 200 such as the mechanical shutter 202, the image sensor 204, and the display driver 220. Further, the microcomputer 230 performs AE processing using the subject brightness calculated by the AE processing unit 214 or performs AF processing using the AF evaluation value calculated by the AF processing unit 216. The microcomputer 230 also controls the operation of the interchangeable lens 100 when the interchangeable lens 100 is attached. Here, the microcomputer 230 in the present embodiment also has a function as a control unit, and controls various camera operations such as AE processing according to a map generated by a map generation unit 234 described later.

  The operation unit 232 is various operation members operated by the user. The operation unit 232 according to the present embodiment includes, for example, a release button, a moving image button, a menu button, a playback button, and a power button as operation members.

  The release button has a two-stage switch including a first (1st) release switch and a second (2nd) release switch. When the release button is pressed halfway and the first release switch is turned on, the microcomputer 230 executes photographing preparation processing such as AE processing and AF processing. Further, when the release button is fully pressed and the second release switch is turned on, the microcomputer 230 executes a still image recording process.

  The moving image button instructs the microcomputer 230 to execute moving image shooting. When the moving image button is pressed, the microcomputer 230 executes a moving image recording process. When the moving image button is pressed during the moving image recording process, the microcomputer 230 ends the moving image recording process.

  The menu button is an operation unit for instructing display of a menu screen. On the menu screen, the user can change various settings of the camera body 200. In the present embodiment, for example, a special image processing mode is set on the menu screen. The content of special image processing performed by the special image processing unit 2182 is set by this special image processing mode.

  The play button is an operation unit for instructing the microcomputer 230 to play back a still image file or a moving image file. The power button is an operation unit for instructing to turn on or off the power of the camera body 200.

  Further, the operation unit 232 includes a touch input unit 2321. The touch input unit 2321 is provided at a position that can be touched with a user's finger or the like, such as on the display panel 222, and detects a touch operation by the user. This touch input unit 2321 has detection points arranged two-dimensionally. Each detection point inputs a detection signal indicating the pressure at the detection point to the microcomputer 230 and the map generation unit 234 when the user touches the finger or the like. As a touch input unit capable of detecting such pressure, for example, a touch input unit configured by sandwiching an organic material (for example, polylactic acid) between transparent electrodes is known. In such a touch input unit using an organic material, the amount of deflection of the organic material changes depending on the pressure on the organic material, and the magnitude of the detection voltage signal detected at the detection point changes according to the change in the amount of deflection. . The magnitude of this detection voltage signal is detected as a pressure.

  Here, functions equivalent to the above-described release button, moving image button, menu button, and playback button may be realized by the touch input unit 2321. That is, there is no need for a physical operation member such as a button.

  The map generation unit 234 identifies the coordinates of the touched detection point from the detection signal input from the touch input unit 2321, and converts the pressure at this coordinate to the strength of the map. Then, the map generation unit 234 creates a map in which the coordinate position and the intensity are associated with each other. In this embodiment, for example, an AE map for AE processing and an image processing map for image processing are created.

  A map creation method will be described below. Here, the AE map and the image processing map will be described without distinction. For example, it is assumed that the user touches the detection point arranged at a certain coordinate of the touch input unit 2321 with the finger F as shown in FIG. At this time, the touch input unit 2321 inputs a detection signal indicating the pressure in the range A where the finger F is touching to the map generation unit 234. In response to this, the map generation unit 234 generates maps as shown in FIGS. 3 (a) and 4 (a).

  The maps shown in FIG. 3A and FIG. 4A represent the intensity distribution for each coordinate of the touched detection point. The maps shown in FIGS. 3A and 4A may be displayed as images. In this case, the map intensity is converted into luminance. In this case, for example, a pixel corresponding to a coordinate having a high intensity is made black (low luminance), and a pixel corresponding to a coordinate having a low intensity is made white (high luminance). Such an image generation method is an example and can be changed as appropriate. For example, a chromatic color may be used without using an achromatic color such as black and white. When chromatic colors are used, the image may be color-coded according to the intensity.

  The map shown in FIG. 3A is an example of a map generated when the user touches the touch input unit 2321 lightly. Here, FIG. 3B shows a distribution of information in the direction along the line segment B passing through the touch center, out of the intensities shown in the map of FIG. When the user lightly touches the touch input unit 2321, the intensity distribution becomes a normal distribution centered on the touch center as shown in FIG.

  On the other hand, the map shown in FIG. 4A is an example of a map generated when the user strongly touches the touch input unit 2321. When the user strongly touches the touch input unit 2321, the user's finger F is pressed against the surface of the touch input unit 2321 and dents in a planar shape. Therefore, as shown in FIG. 4A, the generated map is wider than the map generated when lightly touched. FIG. 4B shows the intensity distribution in the direction along the line segment B passing through the touch center among the intensities shown in the map of FIG. As described above, when the user strongly touches the touch input unit 2321, the finger F receives a force from the touch input unit 2321 and dents in a planar shape, so that the solid line in FIG. A certain range of coordinates has a distribution having substantially the same intensity.

  Here, when a substantially constant intensity as shown in FIG. 4B occurs, the map may be corrected so as to have a normal distribution as shown by a broken line in FIG. 4B. Such correction is not necessary.

  In addition, as a configuration of the touch input unit 2321, the touch input unit 2321 may be configured to detect changes in coordinates of the touch position and pressure for each predetermined period. The touch input unit 2321 having such a configuration can detect the movement of the finger F or can detect the touch of the finger F on a plurality of coordinates. Here, FIG. 5 shows an example of a map generated when the user moves the finger F so as to trace the surface of the touch input unit 2321, touches the first point, and then touches another point. The reference numeral 301 in FIG. 5 is the first point, and the reference numeral 302 is the second point.

  Further, the correspondence between the pressure input from the touch input unit 2321 and the strength of the map may be appropriately changed according to various conditions such as the purpose of use of the map. For example, the correspondence between pressure and map strength may be changed between the AE map and the image processing map.

  Further, in the above-described example, the touch input unit 2321 is illustrated as one that can detect pressure. Actually, it is only necessary to generate a map representing the intensity distribution for each coordinate set in the touch input unit 2321 in response to the operation of the touch input unit 2321. For example, the touch input unit 2321 may be configured to increase the intensity value in accordance with the number of touches on a detection point at a certain coordinate.

  Further, when generating a map, it is not necessary to generate a map using all coordinate values that can be detected by the touch input unit 2321. For example, as the detection value of the touch input unit 2321, the coordinates and intensity of the touch center are used for map generation, and the intensity of the remaining range is sequentially calculated so as to attenuate in a normal distribution form from the intensity of the touch center. Also good. Further, the map may be generated by calculating the intensity between the intensity at a plurality of discrete detection points by interpolation.

  The flash memory 236 includes parameters necessary for the operation of the image processing unit 218 such as a white balance gain for white balance correction, a color matrix coefficient for color matrix calculation, and various functions for changing luminance characteristics. Various parameters necessary for operation are stored. The flash memory 236 also stores various programs executed by the microcomputer 230. Further, the flash memory 236 in the present embodiment also stores a touch pattern for identifying a lock operation, a default AE map, and a default image processing map. These maps will be described in detail later.

  Hereinafter, the operation of the above-described digital camera will be described. FIG. 6 is a flowchart showing the main operation of the digital camera according to the present embodiment. The operation of FIG. 6 is performed when the power of the digital camera 1 shown in FIG. 1 is turned on, for example.

  After the power is turned on, the microcomputer 230 performs an initialization process (step S101). In the initialization processing, the microcomputer 230 performs processing such as turning off the recording flag set in the register of the microcomputer 230. The recording flag is a flag indicating whether or not a moving image is being recorded. While the recording flag is Off, it indicates that the moving image is not being recorded. On the other hand, while the recording flag is On, it indicates that moving image recording is in progress. Further, in the initialization process, the microcomputer 230 resets the map stored in the map storage unit 2121. The reset is performed, for example, by setting the intensity of each coordinate to an initial value (for example, zero). Alternatively, when a default map is stored in the flash memory 236, the map may be overwritten on the map storage unit 2121.

  Next, the microcomputer 230 determines whether or not the reproduction button of the operation unit 232 has been pressed by the user (step S102). If it is determined in step S102 that the playback button has been pressed, the microcomputer 230 executes playback / editing processing (step S103). Details of the reproduction / editing process will be described later.

  If it is determined in step S102 that the playback button has not been pressed, the microcomputer 230 determines whether or not to set the camera (step S104). For example, when the menu button of the operation unit 232 is pressed by the user, the microcomputer 230 determines to set the camera.

If it is determined in step S104 that camera settings are to be made, the microcomputer 230 controls the display driver 220 to display a menu screen on the display panel 222, and then executes camera setting processing (step S105).
In the camera setting process, the microcomputer 230 waits for a camera setting change instruction from the user. When an instruction to change any camera setting is given, the microcomputer 230 changes the camera setting according to the instruction. In this camera setting process, for example, the setting of the image recording format at the time of still image shooting or moving image shooting, the setting related to the image finish such as image quality, and the like are changed. In the camera setting process, it is possible to set whether or not to execute special image processing and a special image processing mode when executing special image processing. Furthermore, in this embodiment, it is also possible to set the operation mode and touch pattern of the touch input unit 2321 in the camera setting process.

  If it is determined in step S104 that the camera setting is not performed, the microcomputer 230 determines whether or not the moving image button of the operation unit 232 has been pressed by the user (step S106). If it is determined in step S106 that the moving image button has been pressed, the microcomputer 230 inverts the recording flag (step S107). That is, the microcomputer 230 turns On when the recording flag is Off and turns Off when it is On. Thereafter, the microcomputer 230 determines whether or not the moving image is currently being recorded, that is, whether or not the recording flag is On (step S108).

  If it is determined in step S108 that the recording flag is On, the microcomputer 230 generates a moving image file (step S109). Here, in the present embodiment, a map generated by a map operation / lock operation process described later is stored as header information of the moving image file. Details will be described later.

  If it is determined in step S108 that the recording flag is not On, the microcomputer 230 closes the moving image file (step S110).

  If it is determined in step S106 that the moving image button has not been pressed, after generating the moving image file in step S109 and closing the moving image file in step S110, the microcomputer 230 causes the current operation of the touch input unit 2321 to be performed. It is determined whether or not the mode is a map operation / lock operation mode (step S111). The touch input unit 2321 in this embodiment has a normal mode and a map operation / lock mode as operation modes. The normal mode is a mode for enabling touch release. In this normal mode, when a user's finger touches a specific coordinate of the touch input unit 2321 arranged on the display panel 222, the touch in the image displayed on the display panel 222 is performed. An AE process and an AF process are performed on the subject corresponding to the coordinate, and then shooting (still image recording or moving image recording) is performed. Further, the map operation / lock mode is a mode for performing a lock operation for invalidating a change operation of the map generated by the map generation unit 234 and an operation of the touch input unit 2321. Switching between these operation modes is performed by the camera setting in step S105 or the operation of the touch input unit 2321.

  In step S111, when it is determined that the current operation mode of the touch input unit 2321 is the map operation / lock operation mode, the microcomputer 230 executes the process of the map operation / lock operation mode (step S112). Details of the map operation / lock operation mode processing will be described later.

  When it is determined in step S111 that the current operation mode of the touch input unit 2321 is the normal mode or after step S112, the microcomputer 230 causes the release button of the operation unit 232 to be half-pressed by the user so that the state of the release button is changed. It is determined whether or not a transition is made from the Off state to the On state of the 1st release switch (step S113). Here, when the current operation mode of the touch input unit 2321 is the normal mode and the user's finger touches a specific coordinate of the touch input unit 2321 arranged on the display panel 222 It is also determined that the 1st release switch has transitioned to the On state.

  If it is determined in step S113 that the state of the release button has transitioned to the ON state of the 1st release switch, the microcomputer 230 performs an AE process (step S114). Details of the AE process will be described later.

After the AE process, the microcomputer 230 performs an AF process (step S115).
In the AF process, the microcomputer 230 causes the AF processing unit 216 to acquire a focus evaluation value. Then, the microcomputer 230 instructs the microcomputer 108 to drive the focus lens of the lens 102 little by little while evaluating the contrast based on the focus evaluation value acquired by the AF processing unit 216. Thereafter, the microcomputer 230 instructs the microcomputer 108 to stop driving the focus lens when the contrast reaches the maximum. Such AF processing is so-called contrast AF processing. A phase difference AF process may be used as the AF process. Further, when the current operation mode of the touch input unit 2321 is the normal mode and the user's finger touches a specific coordinate of the touch input unit 2321 arranged on the display panel 222. Drives the focus lens to focus on the subject corresponding to the touched coordinates in the image displayed on the display panel 222.

  Here, in the example of FIG. 6, AF processing is performed after AE processing. This is because the accuracy of the AF processing is improved when the AF processing is performed after the exposure of the subject is appropriate. As will be described later, since the AE process is repeatedly performed during moving image recording or live view display, exposure of the subject is appropriate to some extent. Therefore, it is not always necessary to perform AF processing after AE processing. That is, the order of the AE process and the AF process may be reversed.

  After step S115, the microcomputer 230 determines whether the power of the digital camera 1 is turned off (step S116). If it is determined in step S116 that the power of the digital camera 1 has not been turned off, the microcomputer 230 executes the processing after step S102. On the other hand, if it is determined in step S116 that the power of the digital camera has been turned off, the microcomputer 230 ends the processing in FIG.

  If it is determined in step S113 that the state of the release button has not changed to the ON state of the first release switch, the microcomputer 230 causes the release button of the operation unit 232 to be fully depressed by the user. Is determined whether or not the 2nd release switch is in the ON state (step S117). Here, when the current operation mode of the touch input unit 2321 is the normal mode and the user's finger touches a specific coordinate of the touch input unit 2321 arranged on the display panel 222 Also, it is determined that the 2nd release switch has transitioned to the On state.

  In step S117, when the state of the release button is the ON state of the 2nd release switch, the microcomputer 230 executes a photographing process using the mechanical shutter 202 (step S118). For this purpose, the microcomputer 230 sets the gain control amount (amplification factor) in the analog processing unit 206 according to the ISO sensitivity determined in the AE process, and sets the aperture value determined in the AE process to the microcomputer 108. Send. Thereafter, the microcomputer 230 controls the exposure value of the image sensor 204 by operating the mechanical shutter 202 according to the exposure time determined in the AE process in synchronization with the driving of the diaphragm 104 under the control of the microcomputer 108. RAW data is stored in the SDRAM 212 by such shooting processing.

  After executing the photographing process using the mechanical shutter 202, the microcomputer 230 causes the image processing unit 218 to perform image processing on the RAW data stored in the SDRAM 212 by the photographing process (step S119). Details of this image processing will be described later.

  After the image processing, the microcomputer 230 performs processing for recording the recording image data stored in the SDRAM 212 as a result of the image processing as a still image file in the set still image recording format (step S120). At this time, the microcomputer 230 inputs the still image data stored in the SDRAM 212 as a result of the still image recording process to the image compression / decompression unit 224 and instructs the image compression / decompression unit 224 to execute the still image compression process. . In response to this instruction, the image compression / decompression unit 224 performs still image compression processing corresponding to a preset recording mode, and stores the compressed still image data in the SDRAM 212. Thereafter, the microcomputer 230 reads the still image data compressed by the image compression / decompression unit 224 from the SDRAM 212, creates a still image file from the read still image data, and records the created still image file on the recording medium 228. Here, in the present embodiment, a map generated in map operation / lock operation processing described later is stored as header information of the still image file. Details will be described later.

  If it is determined in step S117 that the state of the release button is not the ON state of the 2nd release switch, the microcomputer 230 executes an AE process (step S121). This AE process is a process for moving image shooting or live view display. Details will be described later.

  After the AE process, the microcomputer 230 executes a photographing process using an electronic shutter (step S122). In this photographing process, the microcomputer 230 controls the exposure value of the image sensor 204 by operating the electronic shutter function of the image sensor 204 according to the exposure time determined by the AE process. RAW data is stored in the SDRAM 212 by such shooting processing.

  After executing the photographing process using the electronic shutter, the microcomputer 230 causes the image processing unit 218 to perform image processing on the RAW data stored in the SDRAM 212 by the photographing process (step S123). Details of this image processing will be described later.

  After the image processing, the microcomputer 230 determines whether or not the elapsed time after the map operation / lock operation in step S112 is within a predetermined time (for example, 0.5 seconds) (step S124).

  In step S124, when it is determined that the elapsed time since the map operation / lock operation has been performed is within the predetermined time, the microcomputer 230 displays the map image changed by the map operation / lock operation being performed. It is displayed on the display panel 222 (step S125). By displaying the map image on the display panel 222, the user can recognize the result of the map operation as an image.

  If it is determined in step S124 that the elapsed time since the map operation has been performed is not within the predetermined time, the microcomputer 230 performs live view display (step S126). In this live view display, the microcomputer 230 inputs display image data stored in the SDRAM 212 as a result of image processing to the display driver 220. In response to this, the display driver 220 converts the input display image data into a video signal and outputs it to the display panel 222. The display panel 222 displays an image based on this video signal. With such live view display, the user can check the composition using the display panel 222.

  After displaying the map image or displaying the live view, the microcomputer 230 determines whether the moving image is currently being recorded, that is, whether the recording flag is On (step S127). If it is determined in step S127 that the recording flag is Off, the microcomputer 230 determines in step S116. If it is determined in step S127 that the recording flag is On, the microcomputer 230 executes a moving image recording process (step S128). Thereafter, the microcomputer 230 determines in step S116.

  FIG. 7 is a flowchart showing map operation / lock operation processing. In the map operation / lock operation process, various operations can be executed on the generated map. Here, if a map is stored in the map storage unit 2121 of the SDRAM 212 at the start of the map operation / lock operation process, the map is displayed on the display panel 222. If no map is stored in the map storage unit 2121 and a default map is recorded in the flash memory 236, the default map may be displayed on the display panel 222.

  After starting the map operation / lock operation process, the microcomputer 230 displays an operation button on the display panel 222 (step S201). The operation buttons are software buttons that can be operated by the touch input unit 2321 for the user to execute various operations in the map operation / lock operation processing. FIG. 8 shows an example of operation buttons. In the example of FIG. 8, a change button 401, a reset button 402, an eraser button 403, a record button 404, and a read button 405 are displayed as operation buttons. These operation buttons correspond to the contents of the map operation described later.

  The microcomputer 230 determines whether or not a lock operation has been performed by the user (step S202). For example, when the user touches the coordinates of the detection area set in advance on the touch input unit 2321 with a predetermined touch pattern, it is determined that the lock operation has been performed. For this purpose, the microcomputer 230 as the touch pattern generation unit and the comparison unit generates a touch pattern from the detection result of the touch input unit 2321 in step S202, and uses the generated touch pattern as a flash memory as an example of the touch pattern storage unit. Comparison with a predetermined touch pattern stored in 236 is performed. It is assumed that the lock operation is performed when the generated touch pattern and the predetermined touch pattern are similar.

  Here, the touch pattern is set by the time from the start of the touch and the pressure change during that time. The predetermined touch pattern may be a fixed pattern or may be arbitrarily set by the user.

  When the user sets, for example, in the camera setting process, the user touches an arbitrary area 501 of the touch input unit 2321 with an arbitrary touch pattern as shown in FIG. The microcomputer 230 generates a touch pattern from the pressure change detected by the detection signal from the touch input unit 2321, and stores the generated touch pattern in the flash memory 236. It should be noted that during the setting of the touch pattern, it is desirable to display an icon 502 such as “touch learning” so that the user can recognize it.

  10A and 10B show examples of touch pattern settings. The touch pattern may be set for one touch as shown in FIG. 10A, or set for a plurality of touches (in the example, twice) as shown in FIG. 10B. But it ’s okay. Here, a graph as shown in FIG. 10A or FIG. 10B may be displayed during the setting of the touch pattern.

  If it is determined in step S202 that the lock operation has been performed by the user, the microcomputer 230 determines whether or not the lock operation is an instruction to prohibit the touch operation (step S203). For example, if different touch patterns are used for the lock operation for the touch operation prohibition instruction and the lock operation for the touch operation permission instruction, the determination in step S203 can be performed by identifying the touch pattern. In addition, the lock operation may be used for both the touch operation prohibition instruction and the touch operation permission instruction. In this case, whether the lock operation is an instruction for prohibiting the touch operation or an instruction for permitting the touch operation is switched, for example, every time the lock operation is performed.

  If it is determined in step S203 that the lock operation is not an instruction to prohibit the touch operation, the microcomputer 230 performs a touch operation permission process that validates the input from the touch input unit 2321 thereafter (step S204). Thereafter, the microcomputer 230 ends the process of FIG. If it is determined in step S203 that the lock operation is an instruction to prohibit the touch operation, the microcomputer 230 performs a touch operation prohibition process that invalidates the subsequent input from the touch input unit 2321 (step S205). . Thereafter, the microcomputer 230 ends the process of FIG. Even when the input of the touch input unit 2321 is invalidated, the microcomputer 230 performs the determination in step S202.

  Thus, in this embodiment, the permission / prohibition of the operation by the touch input unit 2321 is switched according to the touch input of the predetermined touch pattern by the user. For this reason, for example, when the user holds the digital camera 1 from the neck, even if the touch input unit 2321 touches the user's body, the touch operation of the predetermined touch pattern is not performed and the lock operation is not identified. Accordingly, when the touch operation prohibition process is performed, the touch operation prohibition state is not canceled without permission.

  Here, FIG. 10A and FIG. 10B are touch pattern setting examples in the touch input unit capable of detecting pressure. The touch pattern can be set even by a touch input unit that cannot detect pressure. Even the touch input unit 2321 that cannot detect pressure can detect whether or not there is a touch. Therefore, as shown in FIG. 11, it is possible to use a change in time with or without a touch as a touch pattern.

  Further, in the case of a touch input unit capable of detecting pressure, by detecting a change in the pressure, it is possible to detect which finger is touched by the user or to detect a fingerprint. Accordingly, a finger or fingerprint touched by the user may be set as the touch pattern. Moreover, you may enable it to set a motion of a finger. By complicating the touch pattern in this way, the possibility that the prohibited state of the touch operation is canceled without permission can be further reduced.

  FIG. 9 shows one detection area 501. In contrast, as shown in FIG. 12, a plurality of detection areas 501 may be provided. In this case, instead of setting a touch pattern, it may be determined that a lock operation has been performed when touches are made simultaneously or continuously in a plurality of detection areas 501. Of course, a touch pattern may be set for each detection area 501, and it may be determined that a lock operation has been performed when a touch is made with a preset touch pattern in each detection area. By complicating the touch pattern in this way, the possibility that the prohibited state of the touch operation is canceled without permission can be further reduced.

  Here, the description returns to FIG. If it is determined in step S202 that the lock operation has not been performed by the user, the microcomputer 230 determines whether or not a map type change operation has been performed by the user (step S206). For example, when the change button 401 is touched, it is determined that a map type change operation has been performed.

  If it is determined in step S206 that the map type change operation has been performed by the user, the microcomputer 230 performs map switching (step S207). For example, the map type is switched each time a map type change operation is performed. Here, in the present embodiment, as an example, map switching is performed between an AE map that is a map for AE processing and an image processing map that is a map for image processing. After the map switching, the microcomputer 230 ends the process of FIG.

  If it is determined in step S206 that the map type change operation has not been performed by the user, the microcomputer 230 determines whether or not a map enlargement operation has been performed by the user (step S208). For example, when the user touches the touch input unit 2321 with two fingers and performs a pinch operation to increase the interval between the two fingers, it is determined that the map enlargement operation has been performed.

  If it is determined in step S208 that the map enlargement operation has been performed by the user, the microcomputer 230 enlarges the map according to the user's map enlargement operation (step S209). After enlarging the map, the microcomputer 230 ends the process of FIG.

  If it is determined in step S208 that no map enlargement operation has been performed by the user, the microcomputer 230 determines whether or not a map reduction operation has been performed by the user (step S210). For example, when the user touches the touch input unit 2321 with two fingers and performs a pinch operation to narrow the interval between the two fingers, it is determined that the map reduction operation has been performed.

  If it is determined in step S210 that the map reduction operation has been performed by the user, the microcomputer 230 reduces the map in accordance with the user's map reduction operation (step S211). After reducing the map, the microcomputer 230 ends the process of FIG.

  The map size change shown in steps S209 and S211 will be described. The size of the map is changed based on a certain position in both cases of enlargement and reduction. For example, FIG. 13A shows an example in which the map size is changed (the example in the figure is reduced) based on the center of gravity of the map (the position that becomes the touch center at the time of map creation). The map reduction rate is set according to the interval between two fingers, for example. In addition, as shown in FIG. 13B, the image may be enlarged or reduced with reference to the center of the touch input unit 2321 (the screen center of the display panel 222), or as shown in FIG. 13C. You may make it enlarge / reduce on the basis of the center of the finger | toe of a book. In the example of FIG. 13B or 13C, the center position of the map is also changed.

  Here, when the map is reduced, the intensity of the portion that disappears after the reduction is set to an initial value (for example, zero). Further, when the map is enlarged, the map may protrude from the range of the touch input unit 2321 (screen range of the display panel 222) depending on the map position and the enlargement ratio. In this case, information may be discarded for the protruding portion, or the protruding portion information may be retained in preparation for subsequent reduction.

  Further, enlargement / reduction may be performed by operating the operation unit 232 other than the touch input unit 2321. In this case, enlargement / reduction is performed with reference to the position shown in FIG. 13 (a) or 13 (b).

  Here, the description returns to FIG. If it is determined in step S210 that the map reduction operation has not been performed by the user, the microcomputer 230 determines whether or not a reset operation has been performed by the user (step S212). For example, when the reset button 402 is touched, it is determined that a reset operation has been performed.

  If it is determined in step S212 that the reset operation has been performed by the user, the microcomputer 230 resets the map stored in the map storage unit 2121 (step S213). This reset is the same as the reset of the initialization process.

  If it is determined in step S212 that the reset operation has not been performed by the user, the microcomputer 230 determines whether or not the user has touched the touch input unit 2321 with a single finger (step S214).

  If it is determined in step S214 that the user has made a single finger touch on the touch input unit 2321, the microcomputer 230 determines whether or not the input mode of the touch input unit 2321 is currently the eraser mode ( Step S215). For example, when the user touches the eraser button 403, the input mode of the touch input unit 2321 is switched to the eraser mode, and when the user touches the eraser button 403 again thereafter, the eraser mode is canceled.

  In step S215, when it is determined that the input mode of the touch input unit 2321 is the eraser mode, the microcomputer 230 instructs the map generation unit 234 to generate a map. At this time, the microcomputer 230 instructs the map generation unit 234 to reduce the strength of the map stored in the map storage unit 2121 in accordance with the pressure detected by the touch input unit 2321 (step S216). If the corresponding coordinate intensity is the initial value, it is left as it is.

  Even when it is determined in step S215 that the input mode of the touch input unit 2321 is not the eraser mode, the microcomputer 230 instructs the map generation unit 234 to generate a map. At this time, the microcomputer 230 instructs the map generation unit 234 to increase the strength of the map in accordance with the pressure detected by the touch input unit 2321 (step S217). If no map is stored in the map storage unit 2121, the map strength at each coordinate is increased from the initial value.

  The maps as shown in FIGS. 3 and 4 are generated by the processing of step S216 and step S217. After generating the map, the microcomputer 230 ends the process of FIG.

  Here, in the example of step S216 and step S217, the strength of the map is increased or decreased according to the pressure when pressed by the user's finger. On the other hand, the strength of the map may be updated to a value corresponding to the pressure at the touched position. That is, regardless of the value of the map strength before touching, the map strength may be changed to a value corresponding to the pressure after touching.

  If it is determined in step S214 that the user has not made a single finger touch, the microcomputer 230 determines whether a map recording operation has been performed by the user (step S218). For example, when the recording button 404 is touched, it is determined that a map recording operation has been performed.

  If it is determined in step S218 that the user has performed a map recording operation, the microcomputer 230 records the map stored in the map storage unit 2121 in the flash memory 236 (step S219). After recording the map, the microcomputer 230 ends the process of FIG. The map recorded in step S219 can be used as the default map described above.

  If it is determined in step S218 that the map recording operation has not been performed by the user, the microcomputer 230 determines whether or not a map reading operation has been performed by the user (step S220). For example, when the reading button 405 is touched, it is determined that the map reading operation has been performed.

  If it is determined in step S220 that the map reading operation has been performed by the user, the microcomputer 230 reads the default map recorded in the flash memory 236 into the map storage unit 2121 (step S221). After reading the map, the microcomputer 230 ends the process of FIG. Here, when the map is read into the map storage unit 2121, it is desirable to display the read map on the display panel 222.

  If it is determined in step S220 that the map reading operation has not been performed by the user, the microcomputer 230 ends the process of FIG.

  Here, the map operation / lock operation shown in the example of FIG. 7 is mainly based on the operation of the touch input unit 2321. The map operation / lock operation may be performed by operating the operation unit 232 other than the touch input unit 2321.

  FIG. 14 is a flowchart showing the AE process. In the AE process according to the present embodiment, the AE evaluation value is calculated according to the AE map generated by the map generation unit 234, so that the AE process reflecting the user's intention can be performed.

  When the AE process is started, the microcomputer 230 instructs the AE processing unit 214 to execute the AE process. In response to this, the AE processing unit 214 acquires the AE map stored in the map generation unit 234 (step S301).

  After acquiring the AE map, the AE processing unit 214 determines whether or not the acquired map is in a reset state, that is, whether or not the intensity of each coordinate is an initial value (step S302).

  If it is determined in step S302 that the acquired map is in the reset state, the AE processing unit 214 acquires a default AE map stored in the flash memory 236 (step S303). The default AE map is not particularly limited, but is a map corresponding to a predetermined photometry method such as center-weighted photometry. The AE map corresponding to the center-weighted metering is a map having an intensity distribution near the center position of the touch input unit 2321 (the center position of the display panel 222).

  When the acquired AE map is not in the reset state or after acquiring the default AE map, the AE processing unit 214 normalizes the AE map (step S304). As a normalization process, the AE processing unit 214 divides the intensity of each coordinate of the map by the total value of the map intensity so that the total value of the acquired map intensity becomes a predetermined value (for example, 1). When the total value is zero, the strength value of each map is set to zero.

  Subsequently, the AE processing unit 214 calculates an AE evaluation value using the RAW data and the AE map (step S305). For example, the normalized map intensity value is multiplied by the value of each coordinate of the RAW data, and the sum of the multiplication results is used as the AE evaluation value. Here, an AE evaluation value may be obtained for each predetermined area as in divided photometry, or an AE evaluation value obtained for each divided area may be weighted as in evaluation photometry.

  Subsequently, the AE processing unit 214 calculates shooting conditions (ISO sensitivity, aperture value, exposure time) during still image recording or moving image recording (step S306). In this process, the AE processing unit 214 uses the RAW data shooting conditions (ISO sensitivity, aperture value, exposure time) used for calculating the AE evaluation value and the AE evaluation value calculated in step S305 to record a still image. The shooting conditions at the time of still image recording or moving image recording are calculated so that the exposure value of RAW data obtained at the time of recording or moving image becomes a predetermined target value.

  For example, when the AE evaluation value is calculated according to the AE map obtained when the one point shown in FIG. 3A is lightly touched, the spot for calculating the shooting condition from the exposure value of the pixel corresponding to the touched coordinates. It becomes photometry. Further, when the AE evaluation value is calculated according to the AE map obtained when one point shown in FIG. 4A is strongly touched, the shooting condition is calculated with an emphasis on the exposure value of the pixels near the touched coordinates. Priority metering.

  As described above, according to the present embodiment, the user can freely change the photometric form in the AE process only by changing the strength of the touch in the touch operation.

  FIG. 15 is a flowchart showing image processing. In the present embodiment, image processing that reflects the user's intention is performed by performing image processing according to the image processing map generated by the map generation unit 234. FIG. 15 shows an example in which a map is used for white balance (WB) correction processing. Hereinafter, the map generated for white balance correction processing in the image processing map is referred to as a WB map.

  When image processing is started, the microcomputer 230 instructs the image processing unit 218 to execute image processing. In response to this, the basic image processing unit 2181 of the image processing unit 218 acquires the WB map stored in the map generation unit 234 (step S401).

  After acquiring the WB map, the basic image processing unit 2181 determines whether or not the acquired map is in a reset state, that is, whether or not the intensity of each coordinate is an initial value (step S402).

  If it is determined in step S402 that the acquired map is in the reset state, the basic image processing unit 2181 acquires a white balance (WB) gain without using the map (step S403). As a method for acquiring the WB gain, for example, a method based on preset white balance or a method based on auto white balance (AWB) can be considered. Preset white balance is a technique in which the WB gain calculated for each predetermined light source is stored in the flash memory 236 so that the WB gain of the light source set by the user can be read and used. On the other hand, auto white balance is a method of estimating a light source that illuminates a subject at the time of shooting by analyzing RAW data and calculating a WB gain according to the estimated light source.

  If it is determined in step S402 that the acquired WB map is not in the reset state, the basic image processing unit 2181 normalizes the acquired WB map (step S404). As normalization processing, for example, the strength of each coordinate of the map is divided by the total value of the map strength so that the total value of the acquired map strength becomes a predetermined value (for example, 1).

  Subsequently, the basic image processing unit 2181 integrates the RAW data for each color component (step S405). In this integration process, the basic image processing unit 2181 multiplies the normalized map intensity value by the value obtained by subtracting the OB value from each coordinate value of the RAW data, and integrates this multiplication result for each color component. However, when the color arrangement of the color filters of the image sensor 204 is a Bayer arrangement, the average values of Gr pixels and Gb pixels for each area are integrated. Further, only coordinates having a predetermined range of brightness in the RAW data may be used for calculating the integrated value. In this way, the integrated value can be calculated while eliminating the influence of the saturated portion (pixels brighter than the predetermined range) and the dark portion (pixels darker than the predetermined range).

After calculating the integrated value, the basic image processing unit 2181 calculates a WB gain (step S406). When the integrated value of the R component is R, the integrated value of the G component is G, and the integrated value of the B component is B, the WB gain is given as follows.
R gain = G / R
B gain = G / B

  After acquiring the WB gain, the basic image processing unit 2181 performs OB subtraction processing (step S407). In the OB subtraction process, the basic image processing unit 2181 removes the dark current component in the RAW data by subtracting the optical black (OB) value from the input RAW data.

  After OB subtraction, the basic image processing unit 2181 performs WB correction processing (step S408). In the WB correction process, the basic image processing unit 2181 corrects the color balance as an image by multiplying the color component of the RAW data subjected to the OB subtraction process by the WB gain acquired in step S403 or S406.

  After the WB correction process, the basic image processing unit 2181 performs a synchronization process when the RAW data format is the Bayer format (step S409). In the synchronization processing, the basic image processing unit 2181 uses the interpolation processing to synchronize the RAW data that has been subjected to WB correction. Thereby, RAW data in which one pixel has one color component of RGB is converted into RGB data in which one pixel has three color components of RGB.

  After the synchronization processing, the basic image processing unit 2181 performs color reproduction processing (step S410). In the color reproduction processing, the basic image processing unit 2181 performs color conversion of RGB data by multiplying each pixel of RGB data by a color matrix coefficient corresponding to a set white balance (WB) mode. Further, the basic image processing unit 2181 adjusts the color reproduction of the image by correcting the color so that the hue and saturation of the color-converted RGB data are appropriate.

  After the color reproduction processing, the basic image processing unit 2181 performs luminance change processing (step S411). In the luminance change process, the basic image processing unit 2181 performs gamma conversion on the RGB data that has undergone the color reproduction process, converts the gamma converted RGB data into YC (luminance / color difference) data, and then further converts the Y data to gamma conversion. To do.

  After the brightness change process, the basic image processing unit 2181 performs an edge enhancement process (step S412). In the edge enhancement process, the basic image processing unit 2181 performs bandpass filter processing on the Y data after the luminance change process to extract an edge component, and multiplies the extracted edge component by a coefficient corresponding to the edge enhancement amount. Then, the basic image processing unit 2181 emphasizes the edge component of the image by adding the edge component multiplied by the coefficient to the original Y data.

  After the edge enhancement processing, the basic image processing unit 2181 performs noise reduction (NR) processing (step S413). In the noise reduction process, the basic image processing unit 2181 performs frequency decomposition on the Y data subjected to the edge enhancement process, and performs a coring process or the like according to the frequency to reduce noise components in the image. You may reduce a noise component with respect to C data. When the recording format is TIFF format, the data after the noise reduction processing is converted into RGB format again by performing a predetermined matrix calculation.

  After the noise reduction processing, the special image processing unit 2182 determines whether to perform special image processing (step S414). For example, in the camera setting process, when the setting for executing the special image process is made, it is determined that the special image process is performed. If it is determined in step S414 that the special image processing is not to be executed, the processing in FIG. 15 ends.

  If it is determined in step S414 that special image processing is to be performed, the special image processing unit 2182 executes special image processing (step S415). After the special image processing ends, the processing in FIG. 15 ends.

  FIG. 16 is a flowchart showing special image processing. In the present embodiment, processing is performed according to the image processing map generated by the map generation unit 234 also in special image processing. Hereinafter, a map generated for special image processing out of the image processing maps is referred to as a special effect map.

  When it is determined that the special image processing is to be executed, the special image processing unit 2182 acquires the special effect map stored in the map generation unit 234 (step S501).

  Subsequently, the special image processing unit 2182 determines whether or not to add a shading effect (step S502). When it is determined in step S502 that no shading effect is added, the special image processing unit 2182 skips the process in step S503.

  When it is determined in step S502 that a shading effect is to be added, the special image processing unit 2182 adds a shading effect to the Y data (step S503).

In this process, when the special effect map is not in the reset state, the special image processing unit 2182 generates a gain map according to the special effect map. The gain map is, for example, a map having a smaller gain as the pixel corresponding to the coordinate having a higher intensity of the special effect map. Each gain G of such a gain map is calculated according to the following formula, for example.
G = 1- [intensity value of each coordinate in the special effect map] / maximum intensity value in the special effect map]
After generating the gain map, the special image processing unit 2182 multiplies each pixel of Y data by a gain G corresponding to the value of the pixel.
By such processing, a shading effect that darkens the luminance of the pixel corresponding to the high-intensity coordinates in the special effect map, that is, the portion strongly touched by the user is added to the image.

  Further, when the special effect map is in a reset state, for example, a gain map is generated so that the luminance value gradually decreases (gain decreases) according to the distance from the center position, and is applied to each pixel. Multiply the gain according to the value of the pixel. The maximum value of the gain value is 1.

  When adding shading, it is not always necessary to generate a gain map according to the special effect map. For example, a gain map is set as a predetermined map (for example, a gain map when the special effect map is in a reset state), and after each pixel is multiplied by a gain, shading corresponding to the special effect map is added (intensity added). Accordingly, a process for reducing the luminance may be performed).

  Furthermore, the relationship between the special effect map and the gain map can be changed. For example, when creating a gain map that has a larger gain for pixels corresponding to coordinates with higher intensity in the special effect map, a shading effect is added that brightens the part that is strongly touched by the user and darkens the other part. can do.

  Subsequently, the special image processing unit 2182 determines whether or not to add a soft focus effect (step S504). When it is determined in step S504 that the soft focus effect is not added, the special image processing unit 2182 skips the process in step S505.

  When it is determined in step S504 that the soft focus effect is to be added, the special image processing unit 2182 adds the soft focus effect to the YC data (step S505).

In this processing, when the special effect map is not in the reset state, the special image processing unit 2182 performs low-pass filter processing on the YC data to blur the YC data. Then, the special image processing unit 2182 calculates a composition ratio α between the YC data after blurring and the YC data before blurring according to the special effect map. The composition ratio α is calculated so that, for example, a pixel corresponding to a coordinate having a high strength of the special effect map is blurred, that is, the composition ratio of the YC data after blurring is large. Such a synthesis ratio α is calculated according to the following equation, for example.
α = Intensity value of each coordinate in the special effect map] / Maximum intensity in the special effect map]
After calculating and generating the composition ratio α, the special image processing unit 2182 multiplies each pixel of the YC data after blurring by α, and multiplies each pixel of the YC data before blurring by (1-α). Combine (add) things.
By such processing, a soft focus effect that greatly blurs the periphery of the touched coordinates is added to the image.

  When the special effect map is in the reset state, the YC data after blurring and the YC data before blurring are synthesized at a predetermined ratio (for example, after blurring: before blurring = 2: 3).

  Here, when adding the soft focus effect, a predetermined composition ratio A may be determined in advance, and the final composition ratio α may be determined according to the following equation.

α = A + (1−A) × [value of intensity of each coordinate in special effect map] / theoretical maximum value of intensity in special effect map]
In the case of the above equation, α is A even if the special effect map has a zero-intensity coordinate. Therefore, a soft focus effect is added to the entire YC data.

  Further, instead of calculating the composition ratio α, the degree of blur may be changed according to the special effect map. For example, the value of the low-pass filter used for the blurring process is set so that the high-frequency component is reduced for the pixel corresponding to the coordinate having a higher intensity. Even in this case, it is possible to add a soft focus effect that greatly blurs the position where the user strongly touches.

  Furthermore, the relationship between the special effect map and the composition ratio α and the special effect map and the degree of blurring can be changed. For example, if α is set to be smaller for pixels corresponding to coordinates with higher intensity in the special effect map, it is possible to add a soft focus effect such that the portion strongly touched by the user is sharpened and the other portions are blurred. it can.

  Subsequently, the special image processing unit 2182 determines whether or not to superimpose a noise effect (step S506). When it is determined in step S506 that the noise effect is not superimposed, the special image processing unit 2182 skips the process in step S507.

  When it is determined in step S506 that the noise effect is to be superimposed, the special image processing unit 2182 superimposes the noise effect on the YC data (step S507).

In this processing, when the special effect map is not in the reset state, the special image processing unit 2182 generates a gain map for noise superimposition according to the special effect map. For example, the gain map is a map in which more noise is superimposed on a pixel corresponding to a coordinate having a higher intensity in the special effect map (a gain multiplied by the noise is larger). Each gain G of such a gain map is calculated according to the following formula, for example.
G = 1- [value of intensity of each coordinate in special effect map] / theoretical maximum value of intensity in special effect map]
After generating the gain map, the special image processing unit 2182 multiplies each pixel of predetermined noise data by the gain G. Then, the special image processing unit 2182 superimposes the noise data after being multiplied by the gain G on the YC data. Here, the noise data may be fixed pattern noise data stored in the flash memory 236 in advance, or generated using a pseudo-random number generator or the like each time the noise effect is superimposed. You may make it let it.
By such processing, a noise effect is added to the image such that a large amount of noise is superimposed on a pixel corresponding to a coordinate having a high intensity in the special effect map, that is, a portion strongly touched by the user.

  Here, less noise may be superimposed on a pixel corresponding to a coordinate having a higher strength of the special effect map.

  Subsequently, the special image processing unit 2182 determines whether or not to perform blurring processing (step S508). When it is determined in step S508 that the blurring process is not performed, the special image processing unit 2182 skips the process in step S509.

  If it is determined in step S508 that blurring processing is to be performed, the special image processing unit 2182 performs blurring processing on the YC data (step S509).

  In this process, when the special effect map is not in the reset state, the special image processing unit 2182 uses a low-pass used in the blur process so that the high frequency component is reduced in the pixel corresponding to the coordinate having the higher intensity of the special effect map. Set the filter value and apply blurring.

  In addition, when the special effect map is in a reset state, for example, a low-pass filter used for blurring processing so that a high-frequency component is gradually reduced in the vertical direction or the horizontal direction around the subject position (or AF position or the like). Set the value of to blur.

  Here, the blur processing may be performed by setting the value of the low-pass filter used for the blur processing so that the high-frequency component is gradually reduced according to the distance from the subject position, the AF position, and the like.

  In addition, the blurring process may be performed using a process of combining the YC data after blurring and the YC data before blurring. In this case, for example, the composition ratio of the YC data after blurring is gradually increased so that the high-frequency component is gradually reduced in the vertical direction or the left-right direction around the subject position, the AF position, etc. The synthesis is performed by gradually reducing the synthesis rate.

  Subsequently, the special image processing unit 2182 determines whether or not to perform cross filter processing (step S510). If it is determined in step S510 that the cross filter process is not performed, the special image processing unit 2182 skips the process in step S511.

  If it is determined in step S510 that cross filter processing is to be performed, the special image processing unit 2182 performs cross filter processing on the Y data (step S511).

In this process, when the special effect map is not in the reset state, the special image processing unit 2182 makes the length of the bright line by the cross filter process longer for the pixel corresponding to the coordinate having the higher strength of the special effect map. To. Specifically, the special image processing unit 2182 searches for bright spots (high luminance pixels) in the image data (Y data). Subsequently, the special image processing unit 2182 acquires the intensity at the coordinates of the special effect map corresponding to the searched bright spot. Then, the special image processing unit 2182 draws a bright line having a length corresponding to the acquired intensity on the image data.
By such processing, the length of the bright line of the pixel corresponding to the coordinate with high intensity in the special effect map, that is, the portion strongly touched by the user is increased.

  Here, the length of the bright line by the cross filter process may be shortened for a pixel corresponding to a coordinate having a higher strength of the special effect map.

  Further, the intensity of the bright line to be drawn may be changed instead of the length of the bright line. With such a process, for example, when a bright line is drawn on a subject as a result of drawing a bright line, it is possible to perform a process such as erasing that part (decreasing the density).

  Subsequently, the special image processing unit 2182 determines whether or not to perform part color processing (step S512). If it is determined in step S512 that the part color process is not performed, the special image processing unit 2182 skips the process in step S513 and ends the process in FIG.

  If it is determined in step S512 that part color processing is to be performed, the special image processing unit 2182 performs part color processing on the C data (step S513). Thereafter, the special image processing unit 2182 ends the process of FIG.

In this processing, when the special effect map is not in the reset state, the special image processing unit 2182 creates a color gain map so that the color corresponding to the coordinates corresponding to the coordinates having the higher special effect map color remains. Each gain G of such a gain map is calculated according to the following formula, for example.
G = intensity value of each coordinate in special effect map] / theoretical maximum value of intensity in special effect map]
After generating the gain map, the special image processing unit 2182 multiplies each pixel of the C data (generated so that the achromatic color becomes 0) by the gain G.
By such processing, the color of the pixel corresponding to the coordinate with high intensity in the special effect map, that is, the portion other than the portion strongly touched by the user is lightened.

  Here, instead of leaving all the colors of the touched portion, only a specific color (for example, red) of the touched portion may be left. Alternatively, the color of the touched portion may be left, and the other colors may not be left (achromatic color).

  As described above, according to the present embodiment, the user can freely change the image processing mode in the WB correction process and various special image processes only by changing the strength of the touch at the time of the touch operation. It is.

  FIG. 17 is a flowchart showing the playback / editing process. In the present embodiment, image processing according to the WB map or special effect map can be performed not only when an image is captured but also when the image is reproduced. For this purpose, when the image file is recorded, the map generated by the previous map operation / lock operation is recorded.

  FIG. 18A shows an example of a still image file when the recording format is JPEG or TIFF (when basic image processing has been completed and some special image processing has not been performed). There is no need to perform the AE process again during reproduction. Therefore, it is not necessary to record the AE map. Also, since basic image processing has already been performed, it is not necessary to record a WB map. Therefore, at least a special effect map (one that has not been processed according to the map) is recorded.

  FIG. 18B is an example of a still image file when the recording format is RAW (when basic image processing and special image processing are not performed). In this case, basic image processing and special image processing can be performed on the RAW data during playback / editing processing. Therefore, at least a WB map and a special effect map are recorded. In FIG. 18B, the AE map is also recorded, but it may not be recorded.

  FIG. 18C shows an example of a moving image file. A movie file is basically the same as a still image file (which has already undergone basic image processing and some special image processing has not been performed). Is divided into a plurality of moving image blocks (for example, in units of 0.5 seconds. In addition, when the compression format is a format accompanied by inter-frame compression such as H.264 format, the frame insertion interval is used for performing only intra-frame compression). The special effect map corresponding to each block is recorded, and the map file may be separated from the video file, in which case each video block in the video file is assigned to which special Information indicating whether the map corresponds to the effect map is also recorded.

  Hereinafter, FIG. 17 will be further described. Here, FIG. 17 shows an example in which special image processing is performed on a still image file. However, special image processing may be performed on the moving image file.

  After the start of the reproduction / editing process, the microcomputer 230 displays a list of image files recorded on the recording medium 228 on the display panel 222 (step S611).

  The user selects a desired image file from the image files displayed as a list (step S612). In response to this selection, the microcomputer 230 determines whether or not the selected image file is a moving image file (step S613).

  If it is determined in step S613 that the selected image file is a moving image file, the microcomputer 230 reads the number of frames of the selected moving image file (step S614). Subsequently, the microcomputer 230 initializes the value of the counter i indicating the number of reproduced frames (i = 1) (step S615). Thereafter, the microcomputer 230 causes the display panel 222 to display an image corresponding to the i frame of the moving image file selected by the user (step S616). Specifically, the microcomputer 230 decompresses the i-frame of the moving image file selected by the user by the image compression / decompression unit 224, and displays the display image data stored in the SDRAM 212 as a result of the decompression process. To enter. In response to this, the display driver 220 converts the input display image data into a video signal and outputs it to the display panel 222. The display panel 222 displays an image based on this video signal.

  After displaying the i-th frame, the microcomputer 230 adds 1 to i (step S617). Then, the microcomputer 230 determines whether i is equal to or less than the number of frames (step S618).

  If it is determined in step S618 that i is equal to or less than the number of frames, there are still frames to be reproduced. In this case, the microcomputer 230 returns the process to step S616.

  If it is determined in step S618 that i is larger than the number of frames, the microcomputer 230 determines whether or not the user has instructed the end of the reproduction / editing process (step S619). For example, when the playback button is pressed again, it is determined that the end of the playback / editing process has been instructed.

  If it is determined in step S619 that the end of the reproduction / editing process has not been instructed, the microcomputer 230 returns the process to step S611. If it is determined in step S619 that the end of the reproduction / editing process has been instructed, the microcomputer 230 ends the process of FIG.

  If it is determined in step S613 that the selected image file is not a moving image file, the microcomputer 230 reads the selected still image file (step S620). Subsequently, the microcomputer 230 displays an image corresponding to the selected still image file on the display panel 222 (step S621). Specifically, the microcomputer 230 decompresses the still image file selected by the user by the image compression / decompression unit 224, and inputs the display image data stored in the SDRAM 212 as a result of the decompression processing to the display driver 220. . In response to this, the display driver 220 converts the input display image data into a video signal and outputs it to the display panel 222. The display panel 222 displays an image based on this video signal.

  Subsequently, the microcomputer 230 determines whether or not an instruction for special image processing has been given to the still image being displayed on the display panel 222 (step S622). For example, when the touch input unit 2321 touches a predetermined coordinate, it is determined that an instruction for special image processing has been issued.

    If it is determined in step S622 that an instruction for special image processing has been issued, the microcomputer 230 causes the display panel 222 to execute special image processing for the still image being displayed (step S623). Here, the special image processing in step S623 is the same as that described in FIG. Therefore, the description is omitted. After the special image processing, the microcomputer 230 records the still image that has been subjected to the special image processing (step S624), and then shifts the processing to step S625. If the recording format of the selected image file is the RAW format, the special image processing may be performed after the basic image processing is performed on the RAW data, or the special image processing is performed on the screen nails. May be performed.

  After performing still image recording in step S624 or after executing special image processing in step S623, the microcomputer 230 determines whether or not the display panel 222 has been instructed to end display of the still image being displayed (step S625). ). For example, when there is a touch on a predetermined coordinate of the touch input unit 2321, it is determined that an instruction to end the display is given.

  If it is determined in step S625 that the display end is not instructed, the microcomputer 230 returns the process to step S622. If it is determined in step S625 that the display end has been instructed, the microcomputer 230 shifts the process to step S619.

  As described above, in the present embodiment, permission / prohibition of operation by the touch input unit 2321 is switched according to a touch input of a predetermined touch pattern by the user. For this reason, for example, when the user holds the digital camera 1 from the neck, even if the touch input unit 2321 touches the user's body, the touch operation of the predetermined touch pattern is not performed and the lock operation is not identified. Accordingly, when the touch operation prohibition process is performed, the touch operation prohibition state is not canceled without permission.

  Further, according to the present embodiment, a map having an intensity corresponding to the operation of the touch input unit 2321 is generated, and various camera control modes such as AE processing and image processing can be changed according to the generated map. Yes. Thereby, the user can perform complicated AE processing, image processing, and the like more intuitively and more appropriately.

[Modification]
Hereinafter, modifications of the present embodiment will be described. In the embodiment described above, AE processing and image processing are illustrated as examples of camera control. The technique of the present embodiment can be applied to various types of camera control other than these exemplified processes.

  FIG. 19 is a flowchart when the technique of the present embodiment is applied to the enlarged live view display. The process of FIG. 19 is performed instead of the process of step S126 of FIG. Note that when the enlarged live view display is enabled, the touch release during the normal live view display is invalidated.

  When executing live view display, the microcomputer 230 determines whether or not the user has made a one-finger touch on the touch input unit 2321 (step S701).

  If it is determined in step S701 that the user has made a single finger touch on the touch input unit 2321, the microcomputer 230 instructs the map generation unit 234 to generate a map (step S702). Specifically, a map having an intensity corresponding to the operation of the touch input unit 2321 is stored in the map storage unit 2121. For example, when the touch input unit 2321 is a touch input unit capable of detecting pressure, the map generation unit 234 generates a map having an intensity corresponding to the pressure detected by the touch input unit 2321.

  After the map is stored in the map storage unit 2121, the microcomputer 230 detects the touch center and the touch range from the map intensity distribution (step S703). The touch center is a coordinate having the highest intensity. As shown in FIG. 4, the map when the touch input unit 2321 is strongly touched by the user has a distribution in which coordinates in a certain range have substantially the same intensity. In this case, the center coordinate of this range is set as the touch center. The touch range is a range where the intensity exceeds a predetermined value (for example, zero).

  After detecting the touch center and the touch range, the microcomputer 230 determines an enlargement center and an enlargement ratio for the enlarged live view display (step S704). The enlargement center is the touch center. The enlargement ratio is determined according to the touch strength. For example, it may be determined according to the touch range.

  After determining the enlargement ratio and the touch range, the microcomputer 230 performs enlarged live view display (step S705).

  In the enlarged live view display, the microcomputer 230 displays the display image data in a predetermined enlarged range among the display image data stored in the SDRAM 212 as a result of the image processing similar to the normal live view display. To enter. The enlargement range is, for example, a predetermined rectangular range 601 centered on the enlargement center (touch center) as shown in FIG.

  In response to the input of the display image data for the enlarged live view display, the display driver 220 enlarges the input display image data in accordance with the enlargement ratio designated by the microcomputer 230, and the enlarged display image. Data is converted into a video signal and output to the display panel 222. The display panel 222 displays an image based on this video signal.

  If it is determined in step S701 that the user has not made a single finger touch on the touch input unit 2321, the microcomputer 230 instructs the map generation unit 234 to reset the map (step S706). The resetting of the map is the same process as described in step S101 and the like described above.

  Subsequently, the microcomputer 230 performs normal live view display (step S707). This normal live view display is the same processing as described in step S126.

  With the enlarged live view display as shown in FIG. 19, the user can check the details of the subject or check the focus state using the display panel 222. In the present embodiment, the enlargement ratio at the time of enlarged live view display is determined according to the map. Therefore, while the user is touching the touch input unit 2321 weakly, as shown in FIG. 20B, live view display is performed at a small magnification, and the user is strongly touching the touch input unit 2321. As shown in FIG. 20C, live view display is performed at a large magnification. In this way, the user can instruct an enlarged live view display with a desired enlargement ratio simply by changing the pressure at the time of touch.

  Here, even if the touch input unit 2321 is a touch input unit in which pressure cannot be detected, the same processing as in FIG. 19 can be performed. FIG. 21 shows an example in which the enlargement center can be determined with one finger and the enlargement ratio can be determined with another finger. In this case, a region for determining an enlargement ratio (map strength) is provided in a partial region of the touch input unit. The user touches the subject with the finger F1 and moves the finger F2 so as to trace the enlargement ratio determination area. The map generation unit 234 generates a map having the movement amount of the finger F2 as an intensity. For example, a normal distribution map having the stop position of the finger F2 as the maximum intensity value is generated. After the map is generated, enlarged live view display can be performed in the same manner as in FIG.

  In the example of FIG. 21, the enlarged live view display can be ended when both the finger F1 and the finger F2 are separated. In this case, the possibility that the subject is hidden by the finger F1 can be reduced.

  In addition, a plurality of touch input units 2321 may be provided. FIG. 22 is an example in which, in addition to providing the touch input unit 2321 a integrally with the display panel 222, another touch input unit 2321 b is provided on the subject side of the camera body 200, for example. If the touch input unit 2321b is a touch input unit capable of detecting pressure, the enlargement factor can be determined by the touch input unit 2321a while the enlargement center is determined by the touch input unit 2321a.

  FIG. 23 is a flowchart when the technique of the present embodiment is applied to the generation of a combined photograph. The process of FIG. 23 is performed after the process of step S120.

  After recording the still image file, the microcomputer 230 performs REC view display (step S801). Specifically, the microcomputer 230 decompresses the recorded still image file by the image compression / decompression unit 224 and inputs the display image data stored in the SDRAM 212 as a result of the decompression processing to the display driver 220. In response to this, the display driver 220 converts the input display image data into a video signal and outputs it to the display panel 222. The display panel 222 displays an image based on this video signal.

  Subsequently, the microcomputer 230 determines whether or not the user has made a one-finger touch on the touch input unit 2321 (step S802). If it is determined in step S802 that a single finger has not been touched, the microcomputer 230 determines whether or not a predetermined time (for example, 10 seconds) has elapsed (step S803). If it is determined in step S802 that the predetermined time has not elapsed, the microcomputer 230 returns the process to step S801. In this case, the REC view display is continued. If it is determined in step S802 that the predetermined time has elapsed, the microcomputer 230 ends the processing in FIG.

  If it is determined in step S802 that the user has made a single finger touch on the touch input unit 2321, the microcomputer 230 performs live view display (step S804). This live view display is the same processing as described in step S126.

  After the live view display, the microcomputer 230 instructs the map generation unit 234 to generate a map (step S805). Specifically, a map having an intensity corresponding to the operation of the touch input unit 2321 is stored in the map storage unit 2121. For example, when the touch input unit 2321 is a touch input unit capable of detecting pressure, the map generation unit 234 generates a map having an intensity corresponding to the pressure detected by the touch input unit 2321.

  After the map is stored in the map storage unit 2121, the microcomputer 230 detects a cutout range from the map intensity distribution (step S806). The cutout range is a range having a strength exceeding a certain predetermined value (for example, zero) with the coordinate (touch center) having the maximum strength as the center. For example, when the user touches a certain coordinate of the touch input unit 2321 as shown in FIG. 24A, the range 701 centered on the coordinate is determined as the cutout range as shown in FIG. Is done. Here, as shown in FIG. 3 and FIG. 4, the maps are distributed with intensities of substantially the same size concentrically around the touch center. Therefore, the cutout range is originally circular. However, from the viewpoint of image processing, the cutout range is preferably a rectangular range as shown in FIG. For this reason, the actual cutout range may be a rectangular range that is circumscribed or inscribed with respect to a range having a strength exceeding a certain predetermined value (for example, zero) with the coordinate (touch center) having the maximum strength as the center. desirable.

  After determining the cutout range, the microcomputer 230 determines whether the release button of the operation unit 232 is fully pressed by the user and the release button is in the On state of the 2nd release switch (step S807).

  In step S807, when the state of the release button is not the ON state of the 2nd release switch, the microcomputer 230 determines whether or not a predetermined time (for example, 10 seconds) has elapsed (step S808). If it is determined in step S808 that the predetermined time has not elapsed, the microcomputer 230 returns the process to step S807. In this case, the live view display is continued. If it is determined in step S808 that the predetermined time has elapsed, the microcomputer 230 ends the processing in FIG.

  In step S807, when the state of the release button is the ON state of the 2nd release switch, the microcomputer 230 executes a photographing process using the mechanical shutter 202 (step S808). The photographing process in step S808 is the same as that in step S118. Prior to the shooting process in step S808, AF processing may be performed so as to focus on the previously determined clipping range, or AE processing may be performed so that the exposure value of the clipping range is appropriate.

  After performing the photographing process using the mechanical shutter 202, the microcomputer 230 causes the image processing unit 218 to perform image processing on the RAW data stored in the SDRAM 212 by the photographing process (step S810). The image processing in step S810 is the same as that in step S119.

  After the image processing, the microcomputer 230 acquires a portion corresponding to the cut-out range in the recording image data stored in the SDRAM 212 as a result of the image processing (step S811). Subsequently, the microcomputer 230 instructs the special image processing unit 2182 of the image processing unit 218 to generate a combined photograph (step S812). At this time, the microcomputer 230 decompresses the extracted image data (YC data) and the compressed image data recorded in the still image file obtained prior to the start of the processing of FIG. Are input to the special image processing unit 2182. The special image processing unit 2182 generates a combined photograph by synthesizing two input image data. The combined photograph is generated, for example, by combining two image data so as to be arranged in parallel. Such a method for generating a combined photograph is an example.

  After generating the combined photograph, the microcomputer 230 performs a process of recording the generated combined photograph as a still image file in the set still image recording format (step S813).

  With the processing as shown in FIG. 23, the user can easily specify the cutout range of image data for generating a combined photograph.

  Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications and applications are naturally possible within the scope of the gist of the present invention. Further, in the description of each operation flowchart described above, the operation is described using “first”, “next”, and the like for convenience, but this does not mean that it is essential to perform the operations in this order. Absent.

  In addition, each processing method performed by the image processing apparatus according to the above-described embodiment, that is, the processing shown in each flowchart can be stored as a program that can be executed by the microcomputer 230. In addition, memory cards (ROM cards, RAM cards, etc.), magnetic disks (floppy disks, hard disks, etc.), optical disks (CD-ROM, DVD, etc.), storage media of external storage devices such as semiconductor memories, etc. are distributed. be able to. The microcomputer 230 reads the program stored in the storage medium of the external storage device, and the operation is controlled by the read program, so that the above-described processing can be executed.

  Further, the above-described embodiments include various stages of the invention, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some configuration requirements are deleted from all the configuration requirements shown in the embodiment, the above-described problem can be solved, and this configuration requirement is deleted when the above-described effects can be obtained. The configuration can also be extracted as an invention.

  DESCRIPTION OF SYMBOLS 1 ... Digital camera, 100 ... Interchangeable lens, 102 ... Lens, 104 ... Aperture, 106 ... Driver, 108 ... Microcomputer, 110 ... Memory, 112 ... Interface (I / F), 200 ... Camera body, 202 ... Mechanical shutter, 204 ... Image sensor 206 ... Analog processor 208 ... Analog / digital (A / D) converter 210 ... Bus 212 ... SDRAM 214 ... AE processor 216 AF processor 218 Image processor 220 ... Display driver, 222 ... Display panel, 224 ... Image compression / decompression unit, 226 ... Memory interface (I / F), 228 ... Recording medium, 230 ... Microcomputer, 232 ... Operation unit, 234 ... Map generation unit, 236 ... Flash memory, 2121 ... map storage unit, 2181 ... basic image processing unit, 2182 ... Special image processing unit, 2321 ... Touch input unit

Claims (7)

A touch input unit for detecting whether or not at least a touch operation is performed;
A touch pattern generation unit that generates a touch pattern using an elapsed time after a touch operation is detected by the touch input unit and a detection result of the touch input unit during the elapsed time;
A comparison unit that compares the touch pattern generated by the touch pattern generation unit with a predetermined touch pattern;
A control unit that invalidates a touch operation by the touch input unit when the touch pattern generated by the touch pattern generation unit is similar to the predetermined touch pattern;
An imaging apparatus comprising: The touch input unit detects the strength of the touch operation,
The imaging apparatus according to claim 1, wherein the touch pattern generated by the touch pattern generation unit and the predetermined touch pattern include the strength of the touch operation. The touch input unit detects coordinates where the touch operation is performed,
The imaging apparatus according to claim 1, wherein the touch pattern generated by the touch pattern generation unit and the predetermined touch pattern include the coordinates.   The imaging apparatus according to claim 1, further comprising a changing unit that changes the predetermined touch pattern. The touch input unit detects a touch operation at a plurality of coordinates,
The imaging apparatus according to claim 1, wherein the predetermined touch pattern is set for each of the plurality of coordinates.   The control unit enables the touch operation by the touch input unit when the touch pattern generated by the touch pattern generation unit and the predetermined touch pattern are similar while the touch operation is prohibited. The imaging apparatus according to any one of claims 1 to 5, wherein:   The imaging apparatus according to claim 6, wherein the predetermined touch pattern for invalidating the touch operation is different from the predetermined touch pattern for enabling the touch operation.

Images