JP2013135336A - Image transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize simplification of a communication protocol and improvement in operability related to browsing of an image.SOLUTION: When receiving a tile image transfer request from a smart phone 50, a camera CPU 30 transfers, to a smart phone 60 via a communication I/F 40, tile image data that has different resolution in accordance with the specification of the smart phone 50 and in which plural partial images are arranged. The camera CPU 30 also receives a request for transferring a single-image having a touch position described from the smart phone 50 in association with the transfer of the tile image data, specifies either one of the plural partial images constituting the tile image data on the basis of the resolution of the tile image data and the touch position described in the single-image transfer request, and transfers single-image data corresponding to the specified partial image to the smart phone 50 via the communication I/F 40.

Description

  The present invention relates to an image transfer apparatus, and more particularly to an image transfer apparatus that creates an image having an arrangement and / or resolution adjusted in a manner according to requirements.

  An example of this type of device is disclosed in Patent Document 1. According to this background art, the operation panel accepts the maximum number of scaled images formed on a single document and the scale factor set for each scaled image. The basic magnification is read from a table that defines the arrangement information of the scaled image, and the original image data acquired by the image reading unit is scaled according to the read basic magnification. The plurality of scaled images generated in this way are allocated on one sheet according to the arrangement information defined by the table, and thereafter image formation is performed by the image forming unit.

JP 2008-306302 A

  However, in the background art, it is not assumed that a created image is transferred to an external device, and there is a limit to transfer performance and operability.

  Therefore, a main object of the present invention is to provide an image transfer apparatus that can improve operability.

  An image transfer apparatus according to the present invention (10: reference numeral corresponding to the embodiment; the same applies hereinafter) has a different resolution according to the specifications of the external apparatus when a header transfer request is received from the external apparatus (50), and a plurality of First transfer means (S21 to S27) for transferring a header image in which small images are arranged to an external device, and a large image transfer request in which position information is described is received from the external device in relation to the processing of the first transfer means. 1 receiving means (S29), one of a plurality of small images forming the heading image transferred by the first transfer means is described in the resolution of the heading image transferred by the first transfer means and the large image transfer request. Specifying means (S31 to S33) for specifying based on the position information, and second transfer means (S35 to S37) for transferring a large image corresponding to the small image specified by the specifying means to an external device.

  Preferably, resolution information is described in the header image request, and the first transfer means includes first adjustment means (S25) for adjusting the resolution of the header image with reference to the resolution information described in the header information request.

  Preferably, the second transfer means includes second adjustment means (S35) for adjusting the resolution of the large image to a different resolution according to the specifications of the external device.

  More preferably, the resolution adjusted by the second adjusting means is larger than the resolution defining the specifications of the external device.

  Preferably, an image update request in which an angle of view is described is received from an external device in connection with the processing of the second transfer unit, the second receiving unit (S39), and the image update request among large images transferred by the second transfer unit Creating means (S41 to S43) for creating a large image representing a part corresponding to the angle of view described in the above and having a resolution corresponding to the resolution of the large image transferred by the second transfer means; Third transfer means (S45) for transferring the large image to the external device is further provided.

  Preferably, the position information described in the large image transfer request corresponds to coordinates on the header image.

  The transfer control program according to the present invention has a resolution that differs depending on the specifications of the external device when a header transfer request is received from the external device (50) to the processor (32) of the image transfer device (10), and a plurality of small transfers. A first transfer step (S21 to S27) for transferring a header image on which images are arranged to an external device, and a reception step for receiving a large image transfer request describing position information from the external device in relation to the processing of the first transfer step (S29) The resolution of the header image transferred by the first transfer step and the position information described in the large image transfer request for any one of the plurality of small images forming the header image transferred by the first transfer step Specific steps (S31 to S33) specified based on the above and a second transfer step (S35 to S37) for transferring a large image corresponding to the small image specified in the specific step to the external device. Because of, a transfer control program.

  The transfer control method according to the present invention is a transfer control method executed by the image transfer device (10), and has a resolution that differs according to the specifications of the external device when a header transfer request is received from the external device (50). A first transfer step (S21 to S27) for transferring a header image in which a plurality of small images are arranged to the external device, and a large image transfer request in which position information is described in relation to the processing of the first transfer step. Receiving step (S29) received from the image, and describing one of a plurality of small images forming the heading image transferred in the first transfer step in the resolution of the heading image transferred in the first transfer step and the large image transfer request Specifying step (S31 to S33) based on the determined position information, and a second transfer step of transferring a large image corresponding to the small image specified in the specifying step to the external device (S35 to S37).

  An external control program according to the present invention is an external control program supplied to an image transfer device (10) including a processor (30) that executes processing according to an internal control program stored in a memory (38), and includes an index transfer request A first transfer step (S21 to S27) for transferring a heading image having different resolutions according to the specifications of the external device and arranging a plurality of small images to the external device when position is received from the external device (50); A receiving step (S29) for accepting a large image transfer request in which information is described from an external device in relation to the processing of the first transfer step, and any one of a plurality of small images forming the heading image transferred in the first transfer step A specifying step (S31 to S33) for specifying one based on the resolution of the header image transferred in the first transfer step and the position information described in the large image transfer request; Steps for execution by the processor in cooperation with the second transfer step a (S35 ~ S37) an internal control program for transferring large image corresponding to the small image specified in the external device by an external control program.

  An image transfer apparatus (10) according to the present invention executes a process according to a fetching means (40) for fetching an external control program, and an external control program fetched by the fetching means and an internal control program stored in a memory (38). An image transfer apparatus comprising a processor (30), wherein the external control program has different resolutions according to the specifications of the external device when a header transfer request is received from the external device (50), and a plurality of small images are arranged First transfer step (S21 to S27) for transferring the headline image to the external device, and a reception step for receiving a large image transfer request describing the position information from the external device in relation to the processing of the first transfer step (S29) , One of a plurality of small images forming the heading image transferred in the first transfer step is stored in the heading image transferred in the first transfer step. A specifying step (S31 to S33) for specifying based on the resolution and the position information described in the large image transfer request, and a second transfer step for transferring a large image corresponding to the small image specified by the specifying step to the external device This corresponds to a program that executes (S35 to S37) in cooperation with the internal control program.

  According to the present invention, the large image transferred in response to the second transfer request is based on the position information described in the second transfer request and the resolution of the header image transferred in response to the first transfer request. Identified. Further, the resolution of the heading image is adjusted based on the specifications of the external device.

  Accordingly, when a desired position on the heading image is specified by the external device, a large image corresponding to the small image that appears at the specified position is transferred to the external device. This simplifies the communication protocol and improves operability related to image browsing.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is a block diagram which shows an example of the fundamental structure of this Example. It is a block diagram which shows an example of a structure of a digital camera. FIG. 3 is a block diagram illustrating an example of a configuration of a smartphone that performs communication with the embodiment in FIG. 2. (A) is an illustrative view showing an example of a structure of a tile image transfer request, (B) is an illustrative view showing an example of a structure of a single image transfer request, and (C) is an illustration of a structure of a view angle change request. It is an illustration figure which shows an example. (A) is an illustrative view showing an example of basic tile image data, and (B) is an illustrative view showing an example of tile image data. It is an illustration figure which shows a part of operation | movement of smart phone CPU when the touch operation with respect to a tile image is performed. (A) is an illustrative view showing an example of original image data, and (B) is an illustrative view showing an example of single image data. It is an illustration figure which shows another example of tile image data. (A) is an illustration figure which shows an example of the display state of the single image before pinch-in operation, (B) is an illustration figure which shows an example of the display state of the single image after pinch-in operation. FIG. 3 is a flowchart showing a part of the operation of the camera CPU shown in FIG. 2. It is a flowchart which shows a part of other operation | movement of camera CPU shown in FIG. It is a flowchart which shows a part of other operation | movement of camera CPU shown in FIG. It is a flowchart which shows a part of operation | movement of smart phone CPU shown in FIG. It is a flowchart which shows another part of operation | movement of smart phone CPU shown in FIG.

Embodiments of the present invention will be described below with reference to the drawings.
[Basic configuration]

  Referring to FIG. 1, the image transfer apparatus of this embodiment is basically configured as follows. When the first transfer unit 1 receives a header transfer request from the external device 5, the first transfer unit 1 transfers a header image having different resolutions according to the specifications of the external device 5 and in which a plurality of small images are arranged to the external device 5. The first accepting unit 2 accepts a large image transfer request in which position information is described from the external device 5 in connection with the processing of the first transfer unit 1. The specifying unit 3 describes any one of a plurality of small images forming the heading image transferred by the first transfer unit 1 in the resolution of the heading image transferred by the first transfer unit 1 and the large image transfer request. Identification based on the location information. The second transfer unit 4 transfers a large image corresponding to the small image specified by the specifying unit 3 to the external device 5.

  The large image transferred in response to the second transfer request is specified based on the position information described in the second transfer request and the resolution of the header image transferred in response to the first transfer request. Further, the resolution of the heading image is adjusted based on the specifications of the external device 5.

Therefore, when a desired position on the heading image is specified by the external device 5, a large image corresponding to the small image that appears at the specified position is transferred to the external device 5. This simplifies the communication protocol and improves operability related to image browsing.
[Example]

  Referring to FIG. 2, the digital camera 10 of this embodiment includes a focus lens 12 and an aperture mechanism 14 driven by drivers 18a and 18b, respectively. The optical image that has passed through these members is irradiated onto the imaging surface of the imaging device 16 and subjected to photoelectric conversion. As a result, a charge representing the scene captured on the imaging surface is generated.

  When the power is turned on, the camera CPU 30 instructs the driver 18c to repeat the exposure operation and the charge readout operation in order to start the moving image capturing process. In response to a vertical synchronization signal Vsync periodically generated from an SG (Signal Generator) (not shown), the driver 18c exposes the imaging surface and reads out the charges generated on the imaging surface in a raster scanning manner. From the imaging device 16, raw image data based on the read charges is periodically output.

  The camera processing circuit 20 performs processing such as color separation, white balance adjustment, and YUV conversion on the raw image data output from the imaging device 16, and the YUV format image data generated thereby is stored in the SDRAM 24 through the memory control circuit 22. Write to the YUV image area 24a. The LCD driver 26 repeatedly reads out the image data stored in the YUV image area 24a through the memory control circuit 22, and drives the LCD monitor 28 based on the read image data. As a result, a live image representing a scene captured on the imaging surface is displayed on the monitor screen.

  The image data created by the camera processing circuit 20 is also given to the camera CPU 30. The camera CPU 30 performs simple AE processing on the given image data to calculate an appropriate EV value, and sets an aperture amount and an exposure time that define the calculated appropriate EV value in the drivers 18b and 18c, respectively. As a result, the brightness of the live image is adjusted appropriately.

  When the shutter button 32sh provided on the key input device 32 is operated, the camera CPU 30 performs a strict AE process on the image data output from the camera processing circuit 20 to calculate an optimal EV value, and calculates the calculated optimal EV. Aperture amount and exposure time defining values are set in the drivers 18b and 18c, respectively. The brightness of the live image is adjusted strictly.

  Subsequently, the camera CPU 30 executes AF processing with reference to the high frequency component of the image data output from the camera processing circuit 20. The focus lens 12 is placed at the focal point by the driver 18a, and thereby the sharpness of the live image is improved. When the AF process is completed, the camera CPU 30 executes the still image capturing process and commands the memory I / F 34 to execute the recording process.

  One frame of image data representing a scene at the time when the AF process is completed is saved from the YUV image area 24a to the still image area 24b by the still image capturing process. The memory I / F 36 reads the saved image data through the memory control circuit 22 and records an image file containing the read image data on the recording medium 36. In the image file, read image data is stored as original image data, and reduced image data based on the read image data is described in the file header as thumbnail image data.

  Referring to FIG. 3, smartphone 50 includes an antenna 52 and a wireless communication module 54 corresponding to a mobile communication system, and further includes a communication I / F 64 corresponding to a short-range wireless communication system. Call voice data is transmitted / received by a mobile communication system, and image data is transmitted / received by a mobile communication system and / or a short-range wireless communication system.

  If the data transmitted and received by the mobile communication system is call voice data, the received voice is output from the speaker 56 and the transmitted voice is captured by the microphone 58. If the data transmitted / received by the mobile communication system and / or the wireless communication system is image data, the image data is processed under the control of the smartphone CPU 60.

  The image data to be processed is written into the SDRAM 68 through the memory control circuit 66. The LCD driver 70 reads the image data stored in the SDRAM 68 through the memory control circuit 66, and drives the LCD monitor 72 based on the read image data. As a result, a corresponding image is displayed on the monitor screen.

  When the operator touches the monitor screen, the touch position is detected by the touch sensor 78. The detection result is given to the smartphone CPU 60, and different processes are executed under the control of the smartphone 60 according to the mode of the touch operation. The smartphone CPU 60 also accepts an operation of the key input device 62 by the operator, and different processes are executed under the control of the smartphone 60 according to the key operation mode.

  When the operator performs a tile image acquisition operation through the key input device 62 in a state where the digital camera 10 and the smartphone 50 are connected by the short-range wireless communication method, the smartphone CPU 60 causes the tile number T (= 9) and the reference number ( = Image number serving as a reference) and a tile image transfer request describing the resolution of the LCD monitor 72 is created. As shown in FIG. 4A, a phone ID for identifying the requesting smartphone 50 and a camera ID for identifying the requested digital camera 10 are embedded in the header of the tile image transfer request. The tile image transfer request created in this way is issued to the digital camera 10 through the communication I / F 64.

  When the issued tile image transfer request is received by the communication I / F 40 of the digital camera 10, the camera CPU 30 detects the tile number T, the reference number, and the resolution described in the tile image transfer request, and the work area of the SDRAM 24. Tile image data is created on 24c.

  Specifically, the camera CPU 30 identifies T image files respectively corresponding to the T image numbers starting from the reference number from the recording medium 36, and the T frames stored in the identified T image files. The memory I / F 34 is instructed to read thumbnail image data. The memory I / F 34 reads the thumbnail image data of the designated T frame from the recording medium 36, and writes the read thumbnail image data to the work area 24 c of the SDRAM 24 through the memory control circuit 22.

  Thumbnail image data of the T frame is arranged in a matrix in the work area 24c, whereby basic tile image data is created as shown in FIG. Subsequently, the camera CPU 30 adjusts the resolution of the basic tile image data so as to conform to the resolution described in the tile image transfer request. In this manner, tile image data in which T partial images are arranged in a matrix is completed as shown in FIG.

  Thereafter, the camera CPU 30 instructs the communication I / F 40 to transfer the created tile image data to the request source. The communication I / F 40 reads the tile image data stored in the work area 24c through the memory control circuit 22, and transfers the read tile image data to the smartphone 50 that is the request source.

  The tile image data transferred from the digital camera 10 is received by the communication I / F 64 and written into the SDRAM 68 through the memory control circuit 66. At this time, the smartphone CPU 60 gives a tile image display command to the LCD driver 70. The LCD driver 70 reads the tile image data stored in the SDRAM 68 through the memory control circuit 66, and drives the LCD monitor 72 based on the read tile image data. As a result, the tile image is displayed on the monitor screen.

  When the tile image update operation is performed through the key input device 62 after the tile image is displayed, the smartphone CPU 60 updates the reference number, and the updated reference number, the number of tiles T, and the resolution of the LCD monitor 72 are described. A tile image transfer request is issued to the digital camera 10. As a result, the tile image displayed on the LCD monitor 72 is updated.

  When the touch operation on the monitor screen is detected by the touch sensor 78, the smartphone CPU 60 detects the reference number and the touch position set for acquiring the tile image currently displayed. The touch position is expressed by XY coordinate values with the origin at the upper left of the displayed tile image. Therefore, when the partial image 6 is touched while the tile image shown in FIG. 6 is displayed on the LCD monitor 72, the reference number “1” and the touch position (Xt, Yt) are detected.

  The smartphone CPU 60 then creates a single image transfer request in which the number of tiles T and the resolution of the LCD monitor 72 are described in addition to the detected reference number and touch position, and the created single image transfer request is converted into a digital camera. Issued to 10. As shown in FIG. 4B, the phone ID for identifying the request source smartphone 50 and the camera ID for identifying the request destination digital camera 10 are also embedded in the header of the single image transfer request. A single image transfer request is also issued through the communication I / F 64.

  When the single image transfer request is received by the communication I / F 40 of the digital camera 10, the camera CPU 30 detects the reference number, the touch position, the number of tiles T and the resolution described in the single image transfer request, and is transferred. The partial image designated by the touch operation, that is, the touch image is specified from the nine partial images forming the tile image data. In specifying the touch image, the reference number, touch position, tile number T, and resolution detected from the single image transfer request are referred to.

  Subsequently, the camera CPU 30 creates single image data corresponding to the identified touch image on the work area 24c. Specifically, the camera CPU 30 reads original image data corresponding to the touch image from the recording medium 36 through the memory I / F 34, and writes the read original image data into the work area 24 c of the SDRAM 24 through the memory control circuit 22. Thereafter, the camera CPU 30 adjusts the resolution of the original image data so as to conform to the resolution described in the single image transfer request. Therefore, if the touch image is the partial image 6, single image data shown in FIG. 7B is created based on the original image data shown in FIG.

  The camera CPU 30 instructs the communication I / F 40 to transfer the single image data thus created to the request source. The communication I / F 40 reads the single image data stored in the work area 24c through the memory control circuit 22, and transfers the read single image data to the request source.

  When the single image data transferred from the digital camera 10 is written into the SDRAM 68 via the communication I / F 64 and the memory control circuit 66, the smartphone CPU 60 gives a single image display command to the LCD driver 70. The LCD driver 70 reads the single image data secured in the SDRAM 68 through the memory control circuit 66 and drives the LCD monitor 72 based on the read single image data. As a result, a single image is displayed on the monitor screen.

  When the tile image acquisition operation is performed by the key input device 62, the smartphone CPU 60 reissues a tile image transfer request in which the number of tiles T, the reference number, and the resolution of the LCD monitor 72 are described. The reference number described in the tile image transfer request indicates a value obtained by subtracting a constant K (= 4) from the image number of the single image currently displayed. The tile image data is acquired from the digital camera 10 in the same manner as described above, and a tile image based on the tile image data is displayed on the LC monitor 72. When the tile image acquisition operation is performed while the single image 6 shown in FIG. 7B is displayed, the display on the LCD monitor 72 is updated to the tile image shown in FIG.

  When a view angle changing operation (= slide operation or pinch-in / pinch-out operation) is performed by touching the LCD monitor 72 while a single image is displayed, the smartphone CPU 60 is designated by the view angle changing operation. The angle of view and the image number of the single image currently displayed are detected. The smartphone CPU 60 further creates an image update request in which the detected angle of view and image number and the resolution of the LCD monitor 72 are described as shown in FIG. 4C, and the created image update request is transmitted to the communication I / O. Issued through F64.

  When the image update request is received by the communication I / F 40 of the digital camera 10, the camera CPU 30 detects the resolution, the angle of view, and the image number described in the image update request. The camera CPU 30 further specifies original image data corresponding to the detected image number on the work area 24c, cuts out part of the image data belonging to the specified angle of view from the specified original image data, and cut out the image data Adjust the resolution to match the specified resolution. Such processing is also executed on the work area 24c.

  The camera CPU 30 instructs the communication I / F 40 to transfer the single image data thus created to the request source. The communication I / F 40 reads single image data from the work area 24c through the memory control circuit 22, and transfers the read single image data to the request source. The transferred single image data is displayed on the LCD monitor 72 of the smartphone 60 in the same manner as described above.

  Therefore, when a pinch-in operation is performed in a state where the single image 6 is displayed on the LCD monitor 72 as shown in FIG. 9A, the partial images belonging to the area surrounded by the broken line are shown in FIG. Enlarged as shown.

  The camera CPU 32 executes a plurality of tasks including the imaging control task shown in FIG. 10 and the communication control task shown in FIGS. 11 to 12 in parallel on the multitask OS. Note that control programs corresponding to these tasks are stored in the flash memory 38.

  Referring to FIG. 10, in step S1, the moving image capturing process is started. As a result, a live image representing a scene captured on the imaging surface is displayed on the LCD monitor 28. In step S3, it is determined whether or not the shutter button 34sh has been operated. As long as the determination result is NO, the simple AE process in step S5 is repeatedly executed. As a result, the brightness of the live image is adjusted appropriately.

  When the determination result in step S3 is updated from NO to YES, the strict AE process is executed in step S7, and the AF process is executed in step S9. The brightness of the live image is strictly adjusted by the strict AE process, and the sharpness of the live image is improved by the AF process. In step S11, the still image capturing process is executed by itself. In step S13, the memory I / F 34 is instructed to execute the recording process. As a result, an image file containing one frame of image data representing a scene at the time when the AF process is completed is recorded on the recording medium 36. When the recording process is completed, the process returns to step S3.

  With reference to FIGS. 11 to 12, it is determined whether or not a tile image transfer request is received by the communication I / F 40 in step S21, and whether or not a single image transfer request is received by the communication I / F 40 in step S29. In step S39, it is determined whether or not an image update request has been received by the communication I / F 40.

  If the determination result of step S21 is YES, the processing of steps S23 to S27 is executed. If the determination result of step S29 is YES, the processing of steps S31 to S37 is executed, and if the determination result of step S39 is YES. Steps S41 to S45 are executed.

  In step S23, the number of tiles T, the reference number, and the resolution described in the tile image transfer request are detected. In step S25, tile image data is created on the work area 24c of the SDRAM 24. The created tile image data has a resolution corresponding to the resolution detected in step S23, and is formed by T partial images respectively corresponding to consecutive T image numbers. Further, the head image number among the T consecutive image numbers corresponds to the reference number detected in step S23.

  In step S27, the communication I / F 40 is instructed to transfer the created tile image data to the request source. The communication I / F 40 reads the tile image data stored in the work area 24c through the memory control circuit 22, and transfers the read tile image data to the request source.

  In step S31, the reference number, touch position, number of tiles, and resolution described in the single image transfer request are detected. In step S33, the partial image designated by the touch operation, that is, the touch image is specified from the nine partial images forming the transferred tile image data. In specifying the touch image, the detection result in step S31 is referred to.

  In step S35, single image data corresponding to the identified touch image is created on the work area 24c. The created single image data has a resolution corresponding to the resolution detected in step S31. In step S37, the communication I / F 40 is instructed to transfer the created single image data to the request source. The communication I / F 40 reads the single image data stored in the work area 24c through the memory control circuit 22, and transfers the read single image data to the request source.

  In step S41, the angle of view, the image number, and the resolution described in the image update request are detected. In step S43, the original image data corresponding to the image number detected in step S41 is specified, and a part of the image data belonging to the angle of view detected in step S41 is cut out from the specified original image data. The resolution of the image data is adjusted to match the resolution detected in step S41. Such processing is also executed on the work area 24c.

  In step S45, the communication I / F 40 is instructed to transfer the single image data thus created to the request source. The communication I / F 40 reads single image data from the work area 24c through the memory control circuit 22, and transfers the read single image data to the request source.

  The smartphone CPU 60 executes a plurality of tasks including the communication control task shown in FIGS. 13 to 14 in parallel on the multitask OS. Note that control programs corresponding to these tasks are stored in the flash memory 78.

  In step S51, it is repeatedly determined whether or not a tile image acquisition operation has been performed through the key input device 62. When the determination result is updated from NO to YES, the tile number T and the reference number are set in step S53, and a tile image transfer request is issued in step S55. In the tile image transfer request, the resolution of the LCD monitor 72 is described in addition to the number of tiles T and the reference number set in step S53. The tile image transfer request is issued through the communication I / F 64.

  In step S57, it is repeatedly determined whether tile image data has been received by the communication I / F 64. The determination process is executed by paying attention to whether tile image data is secured in the SDRAM 68. When the determination result is updated from NO to YES, a tile image display command is given to the LCD driver 70. The LCD driver 70 reads the tile image data secured in the SDRAM 68 through the memory control circuit 66, and drives the LCD monitor 72 based on the read tile image data. As a result, the tile image is displayed on the monitor screen.

  In step S61, it is determined whether or not a touch operation on the monitor screen has been performed based on the output of the touch sensor 78. In step S63, it is determined whether or not a tile image update operation has been performed through the key input device 62. If the decision result in the step S63 is YES, the reference number is updated in a step S65, and then the process returns to the step S55. As a result, the tile image displayed on the LCD monitor 72 is updated.

  If the determination result in step S61 is YES, the reference number set in step S53 or S65 and the position touched by the touch operation, that is, the touch position for detecting the tile image that is the current display target, is detected in step S67. To do. In step S69, a single image transfer request in which the number of tiles T and the resolution of the LCD monitor 72 are described in addition to the detected reference number and touch position is created, and the created single image transfer request is transmitted to the communication I / O. Issued through F64.

  In step S71, it is repeatedly determined whether or not single image data has been received by the communication I / F 64. This determination process is also executed by paying attention to whether single image data is secured in the SDRAM 68. When the determination result is updated from NO to YES, a single image display command is given to the LCD driver 70. The LCD driver 70 reads the single image data secured in the SDRAM 68 through the memory control circuit 66 and drives the LCD monitor 72 based on the read single image data. As a result, a single image is displayed on the monitor screen.

  In step S75, it is determined whether or not an angle of view change operation has been performed. In step S77, it is determined whether or not a tile image acquisition operation has been performed. If the determination result of step S77 is YES, the tile number T and the reference number are set. The set reference number indicates a value obtained by subtracting the constant K from the image number of the single image currently displayed. When the setting is completed, the process returns to step S55.

  If the determination result in step S75 is YES, the angle of view designated by the angle of view change operation (= slide operation or pinch-in / pinch-out operation) and the image number of the single image currently displayed are displayed in step S79. To detect. In step S81, an image update request in which the detected angle of view and image number and the resolution of the LCD monitor 72 are described is created, and the created image update request is issued through the communication I / F 64. When the issuing process is completed, the process returns to step S71. Accordingly, the magnification and / or position of the single image to be displayed is changed in response to the view angle changing operation.

  As can be seen from the above description, when the camera CPU 30 receives a tile image transfer request from the smartphone 50, the camera CPU 30 communicates tile image data having different resolutions according to the specifications of the smartphone 50 and in which a plurality of partial images are arranged. The data is transferred to the smartphone 60 through the I / F 40 (S21 to S27). The camera CPU 30 also receives a single image transfer request describing the touch position from the smartphone 50 in connection with the transfer of tile image data (S29), and receives any one of a plurality of partial images forming the tile image data. Based on the resolution of the tile image data and the touch position described in the single image transfer request (S31 to S33), the single image data corresponding to the specified partial image is transmitted to the smartphone 50 through the communication I / F 40. (S35 to S37).

  The single image data transferred in response to the single image transfer request is specified based on the touch position described in the single image transfer request and the resolution of the tile image data. Further, the resolution of the tile image data is adjusted based on the specification of the smartphone 50.

  Therefore, when a desired position on the tile image is touched on the smartphone 50, single image data corresponding to the partial image that appears at the touch position is transferred to the smartphone 50. This simplifies the communication protocol and improves operability related to image browsing.

  In this embodiment, the resolution of single image data transferred from the digital camera 10 to the smartphone 50 is adjusted with reference to the resolution of the LCD monitor 72 provided in the smartphone 50. At this time, the resolution of the single image data may be increased by a predetermined magnification with respect to the resolution of the LCD monitor 72. Thus, the frequency of issuing image update requests in response to the view angle changing operation is suppressed, and communication traffic is reduced.

  In the digital camera 10 of this embodiment, a multitask OS and a control program corresponding to a plurality of tasks executed thereby are stored in the flash memory 38 in advance. However, a part of the control program may be prepared in the flash memory 38 from the beginning as an internal control program, while another part of the control program may be acquired from an external server as an external control program. In this case, the above-described operation is realized by cooperation of the internal control program and the external control program.

  Furthermore, in this embodiment, the processing executed by the camera CPU 30 is divided into a plurality of tasks as described above. However, each task may be further divided into a plurality of small tasks, and a part of the divided plurality of small tasks may be integrated with other tasks. Further, when each task is divided into a plurality of small tasks, all or part of the tasks may be acquired from an external server.

DESCRIPTION OF SYMBOLS 10 ... Digital camera 16 ... Imaging device 20 ... Camera processing circuit 28, 72 ... LCD monitor 30 ... Camera CPU
36, 76 ... recording medium 38, 78 ... flash memory 40, 64 ... communication I / F
50 ... Smartphone 60 ... Smartphone CPU

Claims (10)

First transfer means for transferring a heading image having a different resolution according to the specifications of the external device and arranging a plurality of small images to the external device when a heading transfer request is received from the external device;
First receiving means for receiving a large image transfer request describing position information from the external device in relation to the processing of the first transferring means;
The resolution of the header image transferred by the first transfer means and the position information described in the large image transfer request for any one of a plurality of small images forming the header image transferred by the first transfer means An image transfer apparatus comprising: a specifying unit that specifies the image based on the second transfer unit that transfers a large image corresponding to the small image specified by the specifying unit to the external device. Resolution information is described in the header image request,
The image transfer apparatus according to claim 1, wherein the first transfer unit includes a first adjustment unit that adjusts a resolution of the header image with reference to resolution information described in the header information request.   3. The image transfer apparatus according to claim 1, wherein the second transfer unit includes a second adjustment unit that adjusts the resolution of the large image to a different resolution according to a specification of the external apparatus.   The image transfer apparatus according to claim 3, wherein a resolution adjusted by the second adjustment unit is larger than a resolution defining a specification of the external apparatus. Second accepting means for accepting an image update request describing an angle of view from the external device in relation to the processing of the second transfer means;
The large image transferred by the second transfer means represents a part corresponding to the angle of view described in the image update request and has a resolution corresponding to the resolution of the large image transferred by the second transfer means. 5. The image transfer device according to claim 1, further comprising a creation unit that creates a large image, and a third transfer unit that transfers the large image created by the creation unit to the external device.   6. The image transfer apparatus according to claim 1, wherein the position information described in the large image transfer request corresponds to coordinates on a header image. In the processor of the image transfer device,
A first transfer step of transferring a header image having different resolutions according to specifications of the external device and having a plurality of small images arranged to the external device when a header transfer request is received from the external device;
A receiving step for receiving a large image transfer request in which position information is described from the external device in relation to the processing of the first transfer step;
The resolution of the header image transferred by the first transfer step and the position information described in the large image transfer request for any one of a plurality of small images forming the header image transferred by the first transfer step A transfer control program for executing a specifying step that is specified based on the second step and a second transfer step that transfers a large image corresponding to the small image specified in the specifying step to the external device. A transfer control method executed by an image transfer apparatus,
A first transfer step of transferring a header image having different resolutions according to specifications of the external device and having a plurality of small images arranged to the external device when a header transfer request is received from the external device;
A receiving step for receiving a large image transfer request in which position information is described from the external device in relation to the processing of the first transfer step;
The resolution of the header image transferred by the first transfer step and the position information described in the large image transfer request for any one of a plurality of small images forming the header image transferred by the first transfer step A transfer control method, comprising: a specifying step that specifies based on the second step; and a second transfer step that transfers a large image corresponding to the small image specified in the specifying step to the external device. An external control program supplied to an image transfer apparatus including a processor that executes processing according to an internal control program stored in a memory,
A first transfer step of transferring a header image having different resolutions according to specifications of the external device and having a plurality of small images arranged to the external device when a header transfer request is received from the external device;
A receiving step for receiving a large image transfer request in which position information is described from the external device in relation to the processing of the first transfer step;
The resolution of the header image transferred by the first transfer step and the position information described in the large image transfer request for any one of a plurality of small images forming the header image transferred by the first transfer step And a second transfer step of transferring a large image corresponding to the small image specified by the specifying step to the external device in cooperation with the internal control program. Of external control program. An image transfer apparatus comprising: a capturing unit that captures an external control program; and a processor that executes processing according to the external control program captured by the capturing unit and an internal control program stored in a memory,
The external control program is
A first transfer step of transferring a header image having different resolutions according to specifications of the external device and having a plurality of small images arranged to the external device when a header transfer request is received from the external device;
A receiving step for receiving a large image transfer request in which position information is described from the external device in relation to the processing of the first transfer step;
The resolution of the header image transferred by the first transfer step and the position information described in the large image transfer request for any one of a plurality of small images forming the header image transferred by the first transfer step And a program that executes a second transfer step of transferring a large image corresponding to the small image specified by the specifying step to the external device in cooperation with the internal control program. , Image transfer device.

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