JP5127597B2 - Image display system, image display apparatus and control method thereof, image processing apparatus and control method thereof - Google Patents

Description

  The present invention relates to a system in which an image processing apparatus and an image display apparatus are connected and an image held by the image processing apparatus is displayed on the image display apparatus.

  An image photographed by a digital camera is recorded as digital data on a recording medium in the digital camera, and an image recorded on a display unit of the digital camera is reproduced to enjoy the displayed image.

  In general, a recording medium is inserted into a display device such as a projector to display a photographed image so that relatives and acquaintances can enjoy viewing the displayed image.

  On the other hand, regardless of the manufacturer, there is a direct printing function that enables printing by directly connecting a digital camera and a printer and operating the digital camera. This function is known to be realized by mounting a standard called PictBridge on digital cameras and printers.

  The direct printing function described above allows an image desired to be printed to be displayed on the display unit of the digital camera, and an image desired by the user can be printed by operating a print start button or the like.

  On the other hand, a standard called DPOF (Digital Print Order Format) in which a user designates printing of a desired image in advance and prints a designated image group is also known, and has already been implemented in many digital cameras. When printing is designated using this function, a DPOF file (file name: AUTPRINT.MRK) describing the contents designated for printing is recorded on the recording medium of the digital camera. For example, by bringing a memory card recording this file together with an image to a print shop, it is possible to convey the image to be printed based on the image designation information described in the DPOF file.

In recent years, with the improvement in performance of digital cameras, the size of captured images has increased, and the processing efficiency between the digital camera and the printer has deteriorated. Therefore, in Patent Document 1, the number of vertical and horizontal pixels that can be printed by the printer is transmitted to the digital camera, the digital camera resizes the print image according to the number of vertical and horizontal pixels of the printer, transfers the digital camera to the printer, and the printer It has been proposed to print a resized image.
JP 2005-212359 A

  In recent years, there has been a demand for a digital camera and a display device to be directly connected in the same way as the direct printing function, and to display and enjoy images recorded on the recording media of the digital camera by operating the digital camera. Yes.

  Therefore, the present invention provides a mechanism that allows a display device to display an image by printing operation of an image processing device such as a digital camera by mounting a direct print function such as PictBridge on the display device. For the purpose.

  On the other hand, as described above, PictBridge is standardized to realize the direct printing function of a printer and a digital camera, and therefore cannot notify the resolution that can be displayed by the display device. For this reason, when the size of the captured image increases, an image that is too large compared to the display capability is sent. In this case, since it takes time to develop the image, the display processing time becomes very long.

  The present invention has been made in view of the above problems, and an object of the present invention is to directly connect a digital camera and a display device, display an image suitable for the resolution of the display device, and improve the display speed.

  In order to solve the above problems, an image display system according to the present invention is an image display system including an image processing device and an image display device, and the image processing device includes first communication means for communicating with the image display device, And an image transmission unit that transmits an image to be displayed based on capability information transmitted from the image display device when communication with the image display device is started by one communication unit. And a capability information transmitting unit that transmits capability information to the image processing apparatus when communication with the image processing apparatus is started by the second communication unit. The capability information is a communication for printing. The ability concerning the printing paper transmitted based on the protocol includes the option including the information corresponding to the display resolution of the image display device together with the option indicating the standard. That.

  In addition, the image display device according to the present invention is based on the first communication means that communicates with the image display device, and the capability information sent from the image display device when communication with the image display device is started by the first communication means. An image display apparatus capable of communicating with an image processing apparatus having an image transmission means for transmitting an image to be displayed, wherein the second communication means communicates with the image processing apparatus, and communication with the image processing apparatus is started by the second communication means. In this case, it has capability information transmitting means for transmitting capability information to the image processing apparatus, and the capability information includes an option indicating a standard among the capabilities relating to the printing paper transmitted based on the communication protocol for printing, An option including information corresponding to the display resolution of the image display device is included.

  The image processing apparatus according to the present invention further includes capability information transmitting means for transmitting capability information to the image processing device when communication with the image processing device is started, and is transmitted as capability information based on a printing communication protocol. An image processing apparatus capable of communicating with an image display apparatus that includes an option indicating standard and an option including information corresponding to the display resolution of the image display apparatus in the capability relating to the printed paper, the image display apparatus A communication means for communicating with the image display apparatus, a resizing means for resizing the image to be transmitted based on information corresponding to the display resolution sent from the image display apparatus when the communication means starts communication with the image display apparatus, And transmitting means for transmitting the image resized by the means to the image display device.

  According to the present invention, an image suitable for the resolution of a display device can be acquired from an image processing device such as a digital camera. In particular, since the display resolution of the display device can be notified using a communication standard for direct printing, an image can be displayed on the display device from many digital cameras. Furthermore, since unnecessarily large data is not communicated, the communication processing is speeded up and the time until image display can be shortened.

(First embodiment)
In this embodiment, a method in which a liquid crystal projector as an image display device and a digital camera as an image processing device are connected by USB and an image stored on a recording medium of the digital camera is played back by the operation of the digital camera will be described. To do.

  FIG. 1 is a diagram illustrating a configuration of a digital camera according to an embodiment of the present invention. Hereinafter, the configuration of the digital camera in the embodiment of the present invention will be described.

  Reference numeral 1 denotes a digital camera according to this embodiment.

  Reference numeral 2 denotes a photographing lens, 3 denotes a shutter having a diaphragm function, 4 denotes an image sensor that converts an optical image into an electric signal, and 5 denotes an A / D converter that converts an analog signal output from the image sensor 4 into a digital signal.

  A timing generation circuit 6 supplies a clock signal and a control signal to the image sensor 4, A / D converter 5, and D / A converter 7, and is controlled by a memory control circuit 8 and a system control circuit 9.

  An image processing circuit 10 performs predetermined pixel interpolation processing and color conversion processing on the data from the A / D converter 5 or the data from the memory control circuit 8.

  A memory control circuit 8 controls the A / D converter 5, the timing generation circuit 6, the image processing circuit 10, the image display memory 11, the D / A converter 7, and the memory 12.

  The data of the A / D converter 5 is written into the image display memory 11 or the memory 12 via the image processing circuit 10 and the memory control circuit 8 or the data of the A / D converter 5 is directly passed through the memory control circuit 8. It is.

  Reference numeral 11 denotes an image display memory, 7 denotes a D / A converter, 13 denotes an image display unit including a TFT LCD, and the image data for display written in the image display memory 11 passes through the D / A converter 7. It is displayed by the image display unit 13.

  If the image data captured using the image display unit 13 is sequentially displayed, the electronic viewfinder function can be realized.

  Reference numeral 12 denotes a memory for storing captured still images and moving images, which has a sufficient storage capacity to store a predetermined number of still images and a predetermined time of moving images.

  Reference numeral 14 denotes an exposure control means for controlling the shutter 3 having an aperture function, and has a flash light control function in cooperation with the flash 17.

  Reference numeral 15 denotes distance measuring control means for controlling the focusing of the photographing lens 2, and reference numeral 16 denotes zoom control means for controlling the zooming of the photographing lens 2.

  Reference numeral 17 denotes a flash which has an AF auxiliary light projecting function and a flash light control function.

  Reference numeral 9 denotes a system control circuit that controls the entire digital camera 1, and reference numeral 20 denotes a memory that stores constants, variables, programs, and the like for operation of the system control circuit 9.

  Reference numeral 18 denotes a power control means, which includes a battery detection circuit, a DC-DC converter, a switch circuit for switching a block to be energized, and the like, and detects the presence / absence of a battery, the type of battery, the remaining battery level, and the detection result. In addition, the DC-DC converter is controlled based on an instruction from the system control circuit 9, and a necessary voltage is supplied to each part including the recording medium for a necessary period. Reference numeral 19 denotes a power supply means including a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, NiMH battery, or Li battery, an AC adapter, or the like.

  Reference numeral 21 denotes a display unit such as a liquid crystal display device or a speaker that displays an operation state or a message using characters, images, sounds, or the like in accordance with execution of a program in the system control circuit 9. A single or a plurality of locations are provided in the vicinity where they can be easily seen, and are configured by a combination of, for example, an LCD, an LED, and a sounding element.

  Reference numeral 22 denotes an electrically erasable / recordable nonvolatile memory. Here, the wireless setting information of the device can be stored.

  Reference numeral 23 denotes a memory card interface for connecting a memory card, and reference numeral 24 denotes a USB interface for connecting to an external device using a USB.

  Reference numeral 25 denotes an operation means for inputting various operation instructions of the system control circuit 9, and is constituted by a single or a combination of a switch, a dial, a touch panel, pointing by eye-gaze detection, a voice recognition device, or the like.

  Reference numeral 26 denotes a shutter switch, which is an exposure process for writing image data into the memory 12 through the A / D converter 5 and the memory control circuit 8 through the signal read from the image sensor 4, and an operation in the image processing circuit 10 and the memory control circuit 8. Instructs the start of a series of processing operations such as development processing using.

  Reference numeral 27 denotes a wireless communication circuit that transmits and receives wireless signals and controls wireless communication. Reference numeral 28 denotes an antenna for performing wireless communication with other devices.

  FIG. 2 is a diagram showing a configuration of the liquid crystal projector in the embodiment of the present invention. Hereinafter, the configuration of the liquid crystal projector in the embodiment of the present invention will be described.

  Reference numeral 100 denotes a liquid crystal projector according to the present embodiment.

  Reference numeral 109 denotes a system control circuit that controls the entire liquid crystal projector 100, and reference numeral 101 denotes a memory that temporarily stores constants, variables, images, and the like for operation of the system control circuit 109. Reference numeral 102 denotes an electrically erasable / recordable nonvolatile memory in which a firmware program of the system control circuit 109 is recorded. Capability information notified to the digital camera by the liquid crystal projector 100 can be recorded here.

  Reference numeral 103 denotes an operation unit for inputting various operation instructions of the system control circuit 109. The operation unit 103 includes one or a combination of a switch, a dial, a touch panel, pointing by eye-gaze detection, a voice recognition device, and the like. Reference numeral 120 denotes a remote control light receiving unit for inputting various operation instructions of the system control circuit 109, and can receive remote control keys from an infrared remote controller attached to the liquid crystal projector 100.

  Reference numeral 104 denotes a power supply control means, which includes a DC-DC converter, a switch circuit that switches a block to be energized, etc., detects an AC adapter, and based on the detection result and an instruction from the system control circuit 109, the DC-DC converter And a necessary voltage is supplied to each part including the fan for a necessary period. Reference numeral 105 denotes power supply means such as an AC adapter.

  Reference numeral 107 denotes an Ethernet (registered trademark) interface for network connection. It is possible to notify a system that centrally manages the liquid crystal projector of a state such as a failure of the liquid crystal projector. Reference numeral 106 denotes a USB interface for connecting to a digital camera, a USB memory, or the like using a USB.

  Reference numeral 108 denotes a process for setting a display position of a JPEG image read from a digital camera, a USB memory or the like, and a process for overlaying information such as a file name, date, and Exif. The processed display image data is digitally converted into RGB signals composed of three kinds of color signals of red (R) / green (G) / blue (B).

  A projector video signal processing circuit 111 performs signal processing for converting digitized RGB signals into signals suitable for the projector apparatus. Examples of such signal processing include interlaced progressive conversion processing, frame rate conversion processing, and resolution conversion processing. A frame memory 110 is used in signal processing when the projector video signal processing circuit 110 converts the signal into a signal suitable for the projector, and can record an RGB signal of one frame or more. A signal level adjustment circuit 112 adjusts the output from the projector video signal processing circuit 110 to a signal level suitable for the projection image projected by the projector apparatus. A liquid crystal driver 113 drives the liquid crystal panel 117 based on the output signal of the signal level adjustment circuit 112.

  Reference numeral 116 denotes a lamp, which is a light source for projecting a projection image on the screen 119. 105 supplies power to the lamp 116. A lamp driving circuit (ballast) 115 generates a stable high voltage to be supplied to the lamp 116 from the power supplied from the power source 105. An R / G / B color filter is bonded to the liquid crystal panel 117, and the light projected from the lamp 116 is transmitted and blocked in accordance with the RGB image. The lens group 118 forms the RGB color images that have passed through the liquid crystal panel 117 on the screen 119 and changes the size of the projected image. The screen 119 provides a projection surface on which a video signal is imaged.

  FIG. 3 is a diagram showing the configuration of the digital camera and the liquid crystal projector in the embodiment of the present invention.

  The liquid crystal projector 200 is connected to the digital camera 100 via the USB cable 300 inserted into the USB interface 106. The digital camera 100 includes a recording medium 23 that holds a captured image and a USB interface 24, and is equipped with a function for selecting and printing the stored captured image when connected to a printer.

  The communication medium of the system constructed in the present embodiment may be a wired / wireless LAN, Bluetooth, or the like, and the present embodiment does not depend on the form of the system to be constructed.

  Hereinafter, based on the configuration of the liquid crystal projector and the configuration of the digital camera, the liquid crystal projector is connected to the digital camera in the present embodiment, and the image held by the digital camera is operated by the digital camera. The operation of projecting is described. The control of the digital camera based on the following description is executed by a firmware program existing on the nonvolatile memory 22 of FIG.

  FIG. 5 is a diagram showing a system model of the direct print system (DPS) in the embodiment of the present invention.

  As a communication protocol for direct printing in this embodiment, the above-described PictBridge is used to transmit image data, capability as capability information, status information, and the like. The DPS architecture for realizing the PictBridge standard is a server / client model, and there exist a Print Server 501 / Client 502 and a Storage Server 503 / Client 504. (Acronym for DPS: Digital Photo Solution for Imaging Device). Basically, each DPS operation is completed by a sequence in which the server responds to a request from the client and returns the result to the client. Each DPS event is completed in a sequence in which the client responds to a notification issued from the server and returns a receipt confirmation to the server.

  Specifically, the Print Server 501 of the liquid crystal projector 100 responds in response to a print request from the Print Client 502 of the digital camera 200. Subsequently, the storage client 504 of the liquid crystal projector 100 requests image data in order to project an image, and the image data is returned from the storage server 503 of the digital camera 200. In response to a DPS event issuance notification from the print server 501 of the liquid crystal projector 100 such as a device state, the print client 502 of the digital camera 200 returns a confirmation of receipt of the DPS event.

  The Print Server 501 / Client 502 is executed by a firmware program that exists on the nonvolatile memory 102 of the liquid crystal projector 100. Although not shown, in order to operate the Print Server 501 / Client 502, a USB host driver that controls the USB I / F 106 and an initiator of PTP (acronym for Picture Transfer Protocol) that is a communication protocol are required. On the other hand, in order to operate the Storage Server 503 / Client 504, the digital camera 200 is equipped with a USB device driver and a PTP (Picture Transfer Protocol) responder as a communication protocol.

  FIG. 12 is a diagram showing a capability information management table of the liquid crystal projector in the embodiment of the present invention.

  The capability information management table 1400 is stored in the non-volatile memory 102 of the liquid crystal projector 200 in order to manage the capability that can be set by the liquid crystal projector 200.

  This table stores information on paper size, file name printing, file type, quality, paper type, date printing, image optimization, layout, fixedSize, and trimming.

  The standard paper size (51000000) and the liquid crystal projector display resolution information SXGA +: 1400 × 1050 (5100 C000) exist. This shows that the liquid crystal projector 200 has an ability to project an image with a resolution of SXGA +.

  File name printing has OFF (55010000). The file name is added to indicate that the liquid crystal projector 200 does not have the ability to display an image.

  File types include default (53000000) and EXIF / JPEG (53010000). This shows that the liquid crystal projector 200 is capable of displaying image data in EXIF / JPEG format. In the case of a liquid crystal projector that supports a format other than the JPEG format, such as a bitmap format or PNG format, a code is added to this file type.

  Quality, paper type, date printing, image optimization, layout, fixedSize, and trimming have only standards, and indicate that image display is performed based on the standard specifications of the liquid crystal projector 200.

  As will be described later, the digital camera 100 inquires about the capability that can be set in the liquid crystal projector 200, but the liquid crystal projector 200 acquires information from the Capability information management table and notifies the digital camera 100 of the capability of the liquid crystal projector 200.

  4, 26, and 27 are diagrams illustrating direct print system (DPS) commands and events according to the embodiment of the present invention.

  All DPS commands and events are described in XML format.

  When communication is started, a command for confirming what service function the direct print compatible device has is DPS_ConfigurePrintService, which describes a DPS version, a vendor name, a product name, a serial number, and the like. 401 is a command DPS_ConfigurePrintService transmitted by the Print Client 502. Reference numeral 402 denotes a response that the Print Server 501 responds to the command, and a Result value is described. The digital camera can determine that the connection partner is a liquid crystal projector from the product name of this DPS_ConfigurePrintService.

  A command for inquiring the capability that can be set to the liquid crystal projector 200 is DPS_GetCapability, and the digital camera can acquire capability information of the liquid crystal projector 200. It is possible to know the capabilities of quality, paper size, paper type, file type, date printing, file name printing, image optimization, layout, fixedSize, and trimming. Reference numeral 403 denotes a command DPS_GetCapability transmitted by the print client 502 to inquire about the paper size. Reference numeral 404 denotes a print server 501 responding to the command, in which a Result value and a paper size code which is the resolution of the liquid crystal projector are described. In the case of the capability information management table of the liquid crystal projector shown in FIG. 12, the paper size codes 51000000 (standard) and 5100C000 (SXGA +) are described.

  A command for requesting printing from the digital camera 100 is DPS_StartJob. The print request parameters include print settings and print information. In the print setting, contents (quality, paper size, paper type, file type, date printing, file name printing, image optimization, layout, fixedSize, and trimming) set by the user operation of the digital camera 100 are described. The print information describes an image file ID, the number of prints, etc. for one or more print images designated for printing. Reference numeral 405 denotes a command DPS_StartJob that the Print Client 502 requests to print. Reference numeral 406 denotes a response that the Print Server 501 responds to the command, and the Result value is described.

  A command for canceling printing from the digital camera 100 is DPS_AbortJob. A command DPS_AbortJob 411 is transmitted by the Print Client 502 to cancel printing. Reference numeral 412 denotes a response that the Print Server 501 responds to the command, and the Result value is described.

  A command for resuming printing from the digital camera 100 is DPS_ContinueJob. Reference numeral 413 denotes a command DPS_ContinueJob that the Print Client 502 transmits to resume printing. Reference numeral 414 denotes a response that the Print Server 501 responds to the command, and the Result value is described.

  An event for notifying the printing state from the liquid crystal projector 200 is DPS_NotifyJobStatus, which describes the progress of printing, the total number of printed sheets, and the like. Reference numeral 408 denotes an event DPS_NotifyJobStatus that is sent by the Print Server 501 to notify the printing state. Reference numeral 412 denotes a response that the Print Client 502 responds to the command, and the Result value is described.

  The event for notifying the device status of the liquid crystal projector 200 from the liquid crystal projector 200 is DPS_NotifyDeviceStatus, print status such as idle / printing, error contents such as image file, capability change presence / absence, whether a new print job can be accepted Such information is described. Reference numeral 408 denotes an event DPS_NotifyDeviceStatus that is sent by the Print Server 501 to notify the device status. Reference numeral 412 denotes a response that the Print Client 502 responds to the command, and the Result value is described.

  A command for acquiring a necessary image file ID from the liquid crystal projector 200 is DPS_GetFileID, which describes an image file path and the like. A command DPS_GetFileID 421 is sent by the Storage Client 504 to acquire the file ID of the image. 420 is a response that the Storage Server 503 responds to the command, and the Result value and the file ID are described.

  A command for obtaining necessary image file information from the liquid crystal projector 200 is DPS_GetFileInfo. Reference numeral 423 denotes a command DPS_GetFileInfo transmitted by the Storage Client 504 to acquire image file information, and describes the file ID of the image from which the information has been acquired. Reference numeral 422 denotes a response that the Storage Server 503 responds to the command. The Result value, the file type of the image, the file size, the thumbnail format, and the thumbnail size are described.

  A command for acquiring a necessary image from the liquid crystal projector 200 is DPS_GetFile. Reference numeral 425 denotes a command DPS_GetFile transmitted by the Storage Client 504 to acquire an image, which describes the file ID of the image from which information is acquired. Reference numeral 422 denotes a response to the command by the storage server 503, in which the Result value and the size of the acquired image are described. Although not shown, there is also a command DSP_GetPartialFile that acquires an image by dividing it. DPS_GetPartialFile may be used instead of DPS_GetFile.

  FIG. 7 is a DPS Discovery sequence diagram according to the embodiment of the present invention.

  First, a negotiation is performed between the liquid crystal projector 100 and the digital camera 200 to confirm whether or not each has a DPS function.

  In the PictBridge standard, this DPS Discovery process is performed after a PTP connection is established between both devices using a USB connection as a trigger. Both the liquid crystal projector 200 and the digital camera 100 employ PTP (PTP is an acronym for Picture Transfer Protocol) as a communication protocol, the liquid crystal projector 200 operates as a PTP initiator, and the digital camera 100 operates as a PTP responder. . A PTP Initiator is a device that starts a session and issues a PTP command to a responder. The PTP responder is a device that returns a response to the PTP command from the PTP initiator.

  First, in 701, the PTP Initiator issues GetDeviceInfo to the PTP responder in order to obtain information about the digital camera 100. The PTP command is composed of three phases, Command, Data, and Response. In addition, only the Data phase is not essential, and it differs for each command including the direction of data. Usually, the data in the direction defined for each command is transferred, and a response to the data is returned as a response.

  In 702, the PTP Initiator issues an OpenSession to the PTP responder and notifies the start of the session.

  In 703, the PTP Initiator issues a GetNumObject to the PTP responder, and acquires the number of scripts stored in the storage of the digital camera 100.

  In 704, the PTP Initiator issues GetObjectHandles to the PTP responder, and acquires the handle of the script stored in the storage of the digital camera 100.

  In 705, the PTP Initiator issues GetObjectInfo to the PTP responder, and the PDIS responder receives the DDISCVRY. By acquiring empty script file information called DPS, it is confirmed that the digital camera 100 has the DPS function.

  In 706, the PTP responder also sends HDISCVRY.1 from the Data phase of SendObjectInfo issued by the PTP Initiator. By being notified of empty script file information called DPS, it is confirmed that the liquid crystal projector 200 has the DPS function. The DPS Discovery 601 is thus completed.

  In the PictBridge standard, a DPS command is transmitted using a PTP command. The PTP command and sequence to be used differ between when the DPS command is transmitted from the liquid crystal projector 200 toward the digital camera 100 and when the DPS command is transmitted from the digital camera 100 toward the liquid crystal projector 200. Each will be described with reference to FIGS.

  FIG. 8 is a sequence diagram of a PTP command when the liquid crystal projector 200 according to the embodiment of the present invention issues a DPS command to the digital camera 100.

  In 801, the DPS Client issues a DPS command (DPS_NotifyDeviceStatus 409 is described as an example in the figure) to the PTP Initiator.

  In 802, SendObjectInfo is issued in order to notify the PTP responder of the file type and file size of the object to be transmitted by the PTP Initiator.

  In 803, the PTP Initiator issues a SendObject to the PTP responder in order to transmit the DPS command.

  In 804, the DPS command acquired by the PTP responder is transmitted to the DPS server. As described above, the DPS command issued by the liquid crystal projector 200 is transmitted to the digital camera 100.

  FIG. 9 is a sequence diagram at the PTP command level when the liquid crystal projector 200 according to the embodiment of the present invention receives a DPS command from the digital camera 100.

  In 901, the DPS Server issues a DPS command (in the figure, DPS_StartJob 405 is described as an example) to the PTP responder.

  In 902, the PTP responder receiving the request issues a PTP event called RequestObjectTransfer to the PTP Initiator, and requests the PTP Initiator to acquire an object from the PTP Responder.

  In 903, the PTP Initiator issues GetObjectInfo to the PTP responder in order to acquire the file type and file size of the object to be acquired.

  In 904, the PTP Initiator issues a GetObject to the PTP responder in order to acquire the DPS command.

  In 905, the DPS command acquired by the PTP Initiator is transmitted to the DPS Client. Thus, the DPS command issued by the digital camera 100 is received by the liquid crystal projector 200.

  FIG. 6 is a sequence diagram of a DPS command from the start of connection between the liquid crystal projector and the digital camera to the completion of image display in the embodiment of the present invention.

  The figure shows a sequence from when the liquid crystal projector 100 and the digital camera 200 are directly connected based on the PictBridge standard to display one image.

  First, a negotiation is performed between the liquid crystal projector 100 and the digital camera 200 to confirm whether or not each has a DPS function. In the PictBridge standard, DPS Discovery 601 shown in FIG. 7 is performed after a PTP connection is established between both devices using USB connection as a trigger.

  In 602, the Print Client 502 of the digital camera 200 issues a DPS_ConfigurePrintService 401 to the Print Server 501 of the liquid crystal projector 100. The purpose is to confirm the functions of both the liquid crystal projector 100 and the digital camera 200. That is, the liquid crystal projector 100 notifies the print server 501 / storage client 503 that the digital camera 200 has the print client 502 / storage server 504.

  In 603, the print client 502 issues a DPS_GetCapability 403 to the print server 501 in order to inquire about what display settings are possible for the liquid crystal projector 100. The parameters of capability information issued in response to DPS_GetCapability 403 can describe quality, paper size, paper type, file type, date printing, file name printing, image optimization, layout, fixedSize, trimming, and the like. Therefore, the Print Client 502 describes and issues information necessary for the digital camera 200 in the DPS_GetCapability 403. The print server 501 analyzes the parameter requested to be acquired by the DPS_GetCapability 403, acquires the corresponding information from the capability management information table shown in FIG. 12, and notifies the print client 502 of the capability information. In the present embodiment, when the parameter of DPS_GetCapability 403 is the paper size, the liquid crystal projector 100 includes the default (51000000) and the paper size associated with the display resolution of the liquid crystal projector: SXGA + code (5100C000) as paper size options. Create capability information. By transmitting this capability information to the Print Client 502 as a response to the DPS_GetCapability 403, capability information transmission is realized. As a result, the Capability information obtained by the Print Client 502 is reflected in the UI of the digital camera 200 and can be selected by the user (quality, paper size, paper type, file type, date printing, file name printing, image optimization, layout, fixedSize / trimming) is determined. As a result, a print setting screen corresponding to the capability of the printer can be displayed.

  Reference numeral 604 denotes an operation in which the user selects an image to be displayed on the liquid crystal projector 100 from the digital camera 200 and directly presses the print button 2601. By the operation of 604, the print client 502 issues a DPS_StartJob 405 to the print server 501 at 605. Accordingly, the print setting and the print information are notified from the print client 502 to the print server 501 and the display process is started. At this time, in the present invention, the default (51000000) is described in the print paper size of the parameter of DPS_StartJob 405.

  In 606, the Print Server 501 issues a DPS_NotifyDeviceStatus 409 to the Print Client 502 in order to notify the digital camera 200 that the liquid crystal projector 100 has transitioned from the standby state to the display processing state.

  In step 607, the print server 501 issues a DPS_NotifyJobStatus 407 to the print client 502 in order to notify the digital camera 200 of a progress notification indicating how many display processes are currently being performed in the image file designated for printing.

  In 608, the Storage Client 503 issues a DPS_GetFileInfo 422 to the Storage Server 504 in order to acquire the file type and file size information of the image to be displayed. The storage server 504 that has received the DPS_GetFileInfo 422 acquires the file data from the storage device. Next, the storage server 504 compares the resolution of the liquid crystal projector 100 assigned to the paper code acquired in step 603 with the number of pixels of the file, and performs resizing processing when the number of pixels of the file is larger. For example, when the resolution of the liquid crystal projector is SXGA + (vertical 1400 pixels × horizontal 1050 pixels) and the number of pixels of the display image is vertical 2800 pixels / horizontal 2100 pixels, the display image is resized to 1400 pixels vertical and 1050 pixels horizontal Process. The storage server 504 temporarily stores the file data and file information generated by the resizing process in the memory 12 and notifies the storage client 503 of the file type and file size information. Here, the Storage Client 503 secures memory based on the file size information sent to the Storage Client 503, and prepares for the subsequent acquisition of the image file.

  In 609, the Storage Client 503 issues a DPS_GetFile 424 to the Storage Server 504 to acquire image file data based on the information acquired in 608. There is also a method of acquiring in a divided manner by using DPS_GetPartialFile. The Storage Server 504 that has received the DPS_GetFile 424 transmits an image by transmitting the resized file data stored in the memory 12 to the Storage Client 503 in 608.

  In 610, the storage client 503 transmits the data acquired in 609 to the print device, and the print device displays an image. Print Device refers to the image processing circuit 108.

  When the above is completed, the print server 501 issues a DPS_NotifyDeviceStatus 409 to the print client 502 as 611 in order to notify the digital camera 200 that the liquid crystal projector 100 has transitioned to the standby state.

  Since the liquid crystal projector 200 in the embodiment of the present invention controls the display screen according to the connection state with the digital camera 100, each display screen will be described.

  FIG. 13 is an example of a display screen of the liquid crystal projector 100 that is displayed when the device according to the embodiment of the present invention is not connected.

  When a device is not connected to the liquid crystal projector 100, a comment 2001 for prompting device connection and images 2002 and 2003 of devices that can be connected are displayed on the screen display unit 2000. When the liquid crystal projector 100 and the digital camera 200 are connected, the screen transitions to FIG. When the digital camera 200 is disconnected, the screen transitions to this screen regardless of the screen state.

  FIG. 14 is an example of a display screen of the liquid crystal projector 100 displayed during the connection process with the digital camera 200 in the embodiment of the present invention.

  The screen display unit 2000 displays a connection status display unit 2100 that displays a comment being processed for connection and a progress status of the processing status. When printing is possible from the digital camera 200, the screen transitions to FIG.

  FIG. 15 is an example of a display screen of the liquid crystal projector 100 displayed in the printable state in the embodiment of the present invention.

  A comment 2200 indicating that printing from the digital camera 200 is possible is displayed on the screen display unit 2000. When there is a print request from the digital camera 200, the screen transitions to FIG.

  FIG. 16 is an example of a display screen of the liquid crystal projector 100 displayed in the printing state in the embodiment of the present invention.

  A print instruction from the digital camera 200 to the liquid crystal projector 100 is issued on the screen display unit 2000, and a comment 2300 indicating that the process is being performed is displayed.

  For n / N, the number of images instructed for printing from the digital camera 200 is displayed, and for n, the number of images displayed is displayed. In the case of single-sheet printing, 1/1 is displayed. When an image can be displayed, the screen transitions to FIG.

  FIG. 17 is an example of a display screen of the liquid crystal projector 100 displaying a print image in the embodiment of the present invention.

  An image 2400 instructed to be printed from the digital camera 200 to the liquid crystal projector 100 is displayed. When there is a print request from the digital camera 200 again, the screen transition from FIG. 16 is repeated.

  On the other hand, the digital camera 100 according to the embodiment of the present invention has a user interface for controlling image printing. Since this user interface controls the user interface in accordance with the connection state with the liquid crystal projector 200, each will be described.

  FIG. 19 is a view showing the back surface of the digital camera 200 according to the embodiment of the present invention.

  On the back side, a changeover switch 2600, a direct print button 2601, a SET button 2602, an up / down / left / right button 2603, a MENU button 2604, and a liquid crystal monitor 2605 are provided.

  The changeover switch 2600 is a switch for switching a mode for performing photographing or displaying a photographed image.

  A direct print button 2601 is a button used when directly printing an image displayed on the liquid crystal monitor 2605. When connected to a PictBridge compatible printer, the button lamp is lit. When the direct button 2601 is pressed, a direct printing process screen shown in FIG. 24 is displayed.

  The SET button 2603 is a button used when, for example, setting values are confirmed. When pressed in this state, a screen for direct designation printing shown in FIG. 23 is displayed.

  The up / down / left / right button 2603 is used to move the cursor up / down / left / right when selecting a menu, or to display the next image or the previous image when there are a plurality of images.

  FIG. 23 is an example of a print setting screen in the digital camera 200 according to the embodiment of the present invention.

  The information display 3101 on the print setting screen displays information on the set paper size, paper type, and layout. In 3102, when the printer can print the date, the user can select whether to print the date. In 3103, when the printer can print the file name, the user can select whether to print the file name. In 3104, the number of printed images can be set. In 3105, the printing paper, paper type, and layout corresponding to the printer can be set.

  When the digital camera 200 acquires the capability information of the liquid crystal projector shown in FIG. 12, only paper size: default is displayed without displaying SXGA + as an option of the paper size included therein.

  When the print 3100 is selected and the SET button 2602 is pressed, the digital camera 200 transmits a print request to the liquid crystal projector, and receives the print progress status and the print progress from the liquid crystal projector, as shown in FIG. Display the screen during printing.

  FIG. 24 is an example of a screen during direct printing processing in the digital camera 200 according to the embodiment of the present invention.

  When the direct print button 2601 is pressed in FIG. 19, print processing is performed. It is displayed that the printing process is being performed. The comment 3300 during printing processing indicates that printing processing is being performed and the progress status (n / N) of the printing processing. The progress value of DPS_NotifyJobStatus received from the liquid crystal projector 100 is displayed, where N indicates the total number of printed sheets and n indicates the number of sheets being printed. When printing one sheet, 1/1 is displayed.

  When cancel 3200 is selected and the SET button 2602 is pressed, a print processing cancel confirmation screen shown in FIG. 25 is displayed.

  FIG. 25 is an example of a print processing cancellation confirmation screen in the digital camera 200 according to the embodiment of the present invention.

  When cancel 3400 is selected and the SET button 2602 is pressed, the printing process is canceled and the screen shown in FIG. 19 is displayed. Here, the digital camera 200 transmits a print stop request DPS_AbortJob to the liquid crystal projector 100. The liquid crystal projector 100 that has received the print cancel request cancels image display and transitions to an idle state as shown in FIG.

  When continue 3401 is selected and the SET button 2602 is pressed, the printing process is continued.

  As described above, in a system in which a digital camera and a liquid crystal projector are connected by USB, an image held by the digital camera can be displayed on the liquid crystal projector by operating an operation member such as a button.

  In addition, an image suitable for the resolution of the liquid crystal projector can be displayed. Even for an image with a large number of pixels, the display processing speed can be improved by improving the communication speed.

  In this embodiment, a system using a liquid crystal projector and a digital camera has been described. However, the present invention can also be applied to a device that displays an image, such as a television or an image viewer.

  In addition, the communication packet format used by each terminal for forming the device connection, the operation member for displaying the image, and the like are not limited to the present embodiment.

(Second embodiment)
In the present embodiment, a method will be described in which a liquid crystal projector and a digital camera are connected by USB, and an image stored on a recording medium of the digital camera is reproduced by the operation of the digital camera.

  The configuration of the liquid crystal projector, the configuration of the liquid crystal projector and the digital camera, and the connection method in this embodiment are all the same as in the first embodiment, and a description thereof is omitted. The difference from the first embodiment is that the liquid crystal projector displays images as a slide show by the DPOF printing operation of the digital camera.

  FIG. 18 is a diagram showing a slide show setting screen on the liquid crystal projector 100 according to the embodiment of the present invention.

  The liquid crystal projector 100 designates whether or not to display images as a slide show in 2500 by a remote control operation of the liquid crystal projector 100. In 2501, a slide show interval is designated.

  When the slide show display is enabled, the images described in the DPOF print request from the digital camera 200 are displayed as a slide show at specified intervals.

  When the slide show display is disabled, the image described in the DPOF print request from the digital camera 200 is displayed by operating the remote control of the liquid crystal projector 100.

  FIG. 10 is a diagram showing a DPOF file configuration in the embodiment of the present invention.

  The folder structure in the recording medium inserted in the memory card I / F 23 of the digital camera 100 includes a DCIM directory and a MISC directory immediately under the root directory.

  Under the “DCIM” directory, the captured image EFGH0001. The JPG1005 group is stored.

  A DPOF file is stored under the “MISC” directory 1000. The DPOF file includes a print DPOF file: AUTPRINT. MRK1001, DPOF file for slideshow: AUTPLAYn. MRK1002, DPOF file for transfer: AUTXFER. MRK1003, DPOF file for UNICODE: UNICODE. There are four types of MRK1004.

  The DPOF file for the slide show is AUTPLAY0. MRK AUTPLAY 1. It can have 10 files (AUTPLAYn.MRK1002) such as MRK.

  The print DPOF file 1001 holds a header section such as a digital camera name and DPOF file creation date, product ID, file format, image file path information, image shooting date information, etc. for each job, as indicated by 1006. doing. When the display image is designated as a print image, a job is added to the print DPOF file 1001. On the other hand, when the display image is removed from the print image, the job is deleted from the print DPOF file 1001.

  FIG. 20 is an example of a screen related to DPOF printing operation on the digital camera 200 according to the embodiment of the present invention.

  When a menu related to printing is displayed on the liquid crystal monitor 2605, the user designates printing 2700 and presses the SET button 2602, a screen related to DPOF printing setting shown in FIG.

  Specify the image to be printed. . . When 2701 is designated and the SET button 2602 is pressed, a screen for selecting an image to be printed shown in FIG. 21 is displayed.

  FIG. 21 is an example of a screen for selecting an image to be DPOF printed by the digital camera 200 according to the embodiment of the present invention.

  An image is displayed on the liquid crystal monitor 2605, the number of prints 2800 set in the image displayed in the upper left is displayed, and the total number of prints 2801 set as a whole is displayed in the right part thereof.

  When the SET button 2602 is pressed, a screen for setting the number of images to be printed shown in FIG. 29 is displayed. When there are multiple images, the next image is displayed when the right button is pressed with the up / down / left / right button 2603, and the previous image is displayed when the left button is pressed.

  When the MENU button 2604 is pressed, a screen related to DPOF printing operation shown in FIG. 20 is displayed. Here, the digital camera 200 reflects the contents designated for image printing in the DPOF file for printing 1001 in FIG.

  FIG. 22 is an example of a screen related to DPOF print settings in the digital camera 200 according to the embodiment of the present invention.

  When the digital camera 200 and the liquid crystal projector 100 are connected, the digital camera 200 transitions to this screen.

  The DPOF print setting information display 3001 displays information on the set total number of images to be printed, paper size, paper type, and layout. In 3102, the printing paper, paper type, and layout corresponding to the printer can be set.

  Here, in the present invention, when the digital camera 200 acquires the capability information of the liquid crystal projector shown in FIG. 12, the paper size: default is displayed without displaying the paper size: SXGA +.

  When the print 3000 is selected and the SET button 2602 is pressed, the printing screen shown in FIG. 24 is displayed, and the DPOF printing process shown in FIG. 11 is executed.

  FIG. 11 is a sequence diagram from the DPOF printing start to the image display completion in the embodiment of the present invention.

  As shown in FIG. 22, DPOF printing is set in advance in the digital camera 200, the liquid crystal projector 100 and the digital camera 200 are PictBridge connected, and the digital camera 200 acquires the capability information of the liquid crystal projector 100.

  In 1101, when the print 3000 in FIG. 22 is selected and the SET button 2602 is pressed, the Print Client 502 analyzes the print DPOF file 1001 in FIG. 10 and acquires the file ID of the print image.

  In step 1102, the print client 502 creates a print request command DPS_StartJob 405 using the acquired file ID, and issues the DPS_StartJob 405 to the print server 501. Accordingly, the print setting and the print information are notified from the print client 502 to the print server 501 and the display process is started. At this time, in the present invention, the default (51000000) is described in the print paper size of the parameter of DPS_StartJob 405.

  In 606, the Print Server 501 issues a DPS_NotifyDeviceStatus 409 to the Print Client 502 in order to notify the digital camera 200 that the liquid crystal projector 100 has transitioned from the standby state to the display processing state.

  In 1104, the Print Server 501 issues a DPS_NotifyJobStatus 407 to the Print Client 502 in order to send a progress notification to the digital camera 200 indicating how many display processes are currently being performed in the image file designated for printing. In the case of the printing DPOF file 1001 in FIG. 10, the progress is notified as 001/002.

  In 1105, the Storage Client 503 issues a DPS_GetFileInfo 422 to the Storage Server 504 in order to acquire the file type and file size information of the image to be displayed. The storage server 504 that has received the DPS_GetFileInfo 422 acquires the file data from the storage device. Next, the storage server 504 compares the resolution of the liquid crystal projector 100 assigned to the paper code acquired in step 603 with the number of pixels of the file, and performs resizing processing when the number of pixels of the file is larger. For example, when the resolution of the liquid crystal projector is SXGA + (vertical 1400 pixels × horizontal 1050 pixels) and the number of pixels of the display image is vertical 2800 pixels / horizontal 2100 pixels, the display image is resized to 1400 pixels vertical and 1050 pixels horizontal Process. The storage server 504 temporarily stores file data and file information generated by the resizing process, and notifies the storage client 503 of the file type and file size information. Here, the Storage Client 503 secures memory based on the file size information sent to the Storage Client 503, and prepares for the subsequent acquisition of the image file.

  In 1106, the Storage Client 503 issues a DPS_GetFile 424 to the Storage Server 504 in order to collectively acquire image file data based on the information acquired in 1105. There is also a method of performing division acquisition using DPS_GetPartialFile. The storage server 504 that has received the DPS_GetFile 424 transmits the file data resized at 1105 to the storage client 503.

  In 1107, the storage client 503 transmits the data acquired in 609 to the print device, and the print device displays an image. Print Device refers to the image processing circuit 108.

  In 1108, when the slide show setting function of the liquid crystal projector 100 is turned on in FIG. 18, the print server 501 confirms whether all images requested for printing are displayed in 1102. When the slide show setting function is OFF, although not shown, when the print server 501 receives a display request for the next image by operating the remote control of the liquid crystal projector 100, whether or not all the images requested for printing in 1102 have been displayed. To check. If not all are displayed, the processing from 1104 is repeated. At that time, the progress n value indicating the current number of display processes is incremented. If all the images are displayed, the print server 501 issues a DPS_NotifyDeviceStatus 409 to the print client 502 in order to notify the digital camera 200 that the liquid crystal projector 100 has shifted to the standby state in 1109.

  Although not shown, when the print server 501 receives an image display stop request by operating the remote control of the liquid crystal projector 100 in the printing state, the digital camera 200 indicates that the liquid crystal projector 100 of 1109 has transitioned to the standby state. Process to notify.

  As described above, in a system in which a digital camera and a liquid crystal projector are connected by USB, a group of images designated for DPOF printing by the digital camera can be displayed as a slide show on the liquid crystal projector.

  Also, an image suitable for the resolution of the image of the liquid crystal projector can be displayed for all images designated for DPOF printing. Even for an image with a large number of pixels, the display processing speed can be improved by improving the communication speed.

  In this embodiment, a system using a liquid crystal projector and a digital camera has been described. However, the present invention can also be applied to a device that displays an image, such as a television or an image viewer.

  In addition, the communication packet format used by each terminal for forming the device connection, the operation member for displaying the image, and the like are not limited to the present embodiment.

[Other embodiments]
In addition, the objective of this invention is achieved by performing the following processes. That is, a storage medium storing a program code for realizing the functions of the above-described embodiments is supplied to a system or apparatus, and a program code (or CPU or MPU) of the system or apparatus is stored in the storage medium. Is a process of reading.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the program code and the storage medium storing the program code constitute the present invention.

  Moreover, the following can be used as a storage medium for supplying the program code. For example, floppy (registered trademark) disk, hard disk, magneto-optical disk, CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW, magnetic tape, nonvolatile memory card, ROM or the like. Alternatively, the program code may be downloaded via a network.

  Further, the present invention includes a case where the function of the above-described embodiment is realized by executing the program code read by the computer. In addition, an OS (operating system) running on the computer performs part or all of the actual processing based on the instruction of the program code, and the functions of the above-described embodiments are realized by the processing. Cases are also included.

  Furthermore, the present invention includes a case where the functions of the above-described embodiment are realized by the following processing. That is, the program code read from the storage medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, based on the instruction of the program code, the CPU or the like provided in the function expansion board or function expansion unit performs part or all of the actual processing.

It is a figure which shows the structure of the digital camera in embodiment of this invention. It is a figure which shows the structure of the liquid crystal projector in embodiment of this invention. It is a figure which shows the structure of the digital camera and liquid crystal projector in embodiment of this invention. It is the figure shown about the DPS command and event in embodiment of this invention. It is the figure which showed the system model of DPS in embodiment of this invention. It is a sequence diagram from the connection start of the liquid crystal projector and the digital camera in the embodiment of the present invention to the completion of image display. It is a sequence diagram of DPS Discovery in an embodiment of the present invention. It is a sequence diagram of a PTP command when the liquid crystal projector in the embodiment of the present invention issues a DPS command to the digital camera. FIG. 6 is a sequence diagram at the PTP command level when the liquid crystal projector in the embodiment of the present invention receives a DPS command from a digital camera. It is the figure which showed the DPOF file structure in embodiment of this invention. It is a sequence diagram from the DPOF printing start to the image display completion in the embodiment of the present invention. It is the figure which showed the capability information management table of the liquid crystal projector in embodiment of this invention. It is an example of the display screen of the liquid crystal projector displayed when the device in the embodiment of the present invention is not connected. It is an example of the display screen of the liquid crystal projector displayed during the connection process with the digital camera in the embodiment of the present invention. It is an example of the display screen of the liquid crystal projector displayed at the time of the slide show start possible state in the embodiment of the present invention. It is an example of the display screen of the liquid crystal projector which displayed the printing image in embodiment of this invention. It is an example of the display screen of the liquid crystal projector which displayed the printing image and image information in embodiment of this invention. It is a slide show setting screen display figure of the liquid crystal projector in the embodiment of the present invention. It is the figure which showed the back surface of the digital camera in embodiment of this invention. It is a screen figure regarding operation of DPOF printing with the digital camera in the embodiment of the present invention. It is a screen figure which selects the image which DPOF prints with the digital camera in embodiment of this invention. It is a screen figure regarding DPOF print setting in the digital camera in the embodiment of the present invention. It is a screen figure regarding the direct designation | designated printing with the digital camera in embodiment of this invention. FIG. 6 is a screen view during direct printing processing in the digital camera 200 according to the embodiment of the present invention. It is a printing process stop confirmation screen figure in the digital camera 200 in the embodiment of the present invention. It is the figure shown about the DPS command and event in embodiment of this invention. It is the figure shown about the DPS command and event in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Digital camera 2 Shooting lens 3 Shutter 4 Imaging device 5 A / D converter 6 Timing generation circuit 7 D / A converter 8 Memory control circuit 9 System control circuit 10 Image processing circuit 11 Image display memory 12 Memory 13 Image display part 14 Exposure control means 15 Distance measurement control means 16 Zoom control means 17 Flash 17
DESCRIPTION OF SYMBOLS 18 Power supply control means 19 Power supply means 20 Memory which memorize | stores a constant, a variable, a program, etc. 21 Display part 22 Non-volatile memory 23 Memory card interface 24 USB interface 25 Operation means 26 Shutter switch 27 Wireless communication circuit 28 Antenna 100 Liquid crystal projector 101 Memory 102 Non-volatile memory 103 Operation unit 104 Power supply control means 105 Power supply means 107 Ethernet (registered trademark) interface 106 USB interface 108 Image processing circuit 109 System control circuit 110 Frame memory 111 Projector video signal processing circuit 112 Signal level adjustment circuit 113 Liquid crystal driver 115 Lamp Drive circuit (ballast)
116 Lamp 117 Liquid crystal panel 118 Lens group 119 Screen 120 Remote control light receiving unit

Claims (9)

An image display system comprising an image processing device and an image display device,
The image processing device
First communication means for communicating with the image display device;
Image transmission means for transmitting an image to be displayed based on capability information sent from the image display device when communication with the image display device is started by the first communication means;
The image display device includes:
Second communication means for communicating with the image processing apparatus;
A capability information transmitting unit configured to transmit capability information to the image processing device when communication with the image processing device is started by the second communication unit;
The capability information includes an option including information corresponding to the display resolution of the image display device in addition to the option indicating the standard in the capability relating to the printing paper transmitted based on the communication protocol for printing. An image display system characterized by the above.   2. The image processing apparatus according to claim 1, further comprising resizing means for resizing an image to be transmitted to the image display apparatus based on information corresponding to the display resolution included in the received capability information. The image display system described.   The image processing apparatus can display a print setting screen based on the printing communication protocol, and displays a default as a paper size option to be displayed on the print setting screen based on the reception of the capability information. 3. The image display system according to claim 1, wherein an option based on the display resolution information is controlled so as not to be displayed. 4.   The image display system according to claim 1, wherein the image processing apparatus is a digital camera. A first communication unit that communicates with the image display device, and when communication with the image display device is started by the first communication unit, an image to be displayed is transmitted based on capability information sent from the image display device An image display device capable of communicating with an image processing device having an image transmission means,
Second communication means for communicating with the image processing device;
A capability information transmitting unit configured to transmit capability information to the image processing device when communication with the image processing device is started by the second communication unit;
The capability information includes an option including information corresponding to the display resolution of the image display device in addition to the option indicating the standard in the capability relating to the printing paper transmitted based on the communication protocol for printing. An image display device characterized by the above. A capability information transmitting unit configured to transmit capability information to the image processing device when communication with the image processing device is started, and the capability information includes a capability relating to a print sheet transmitted based on a communication protocol for printing. An image processing apparatus capable of communicating with an image display apparatus including an option including information corresponding to a display resolution of the image display apparatus together with an option indicating a standard,
Communication means for communicating with the image display device;
Resizing means for resizing an image to be transmitted based on information corresponding to the display resolution sent from the image display device when communication with the image display device is started by the communication means;
An image processing apparatus comprising: a transmission unit configured to transmit the image resized by the resize unit to the image display device. Further, a print setting screen based on the communication protocol for printing can be displayed, and upon receiving the capability information, a default is displayed as a paper size option to be displayed on the print setting screen, and the display The image processing apparatus according to claim 6 , wherein an option based on the resolution information is controlled not to be displayed. A first communication unit that communicates with the image display device, and when communication with the image display device is started by the first communication unit, an image to be displayed is transmitted based on capability information sent from the image display device An image display apparatus control method capable of communicating with an image processing apparatus having an image transmission means,
A second communication step of communicating with the image processing device;
A capability information transmission step of transmitting capability information to the image processing device when communication with the image processing device is started in the second communication step;
The capability information includes an option including information corresponding to the display resolution of the image display device in addition to the option indicating the standard in the capability relating to the printing paper transmitted based on the communication protocol for printing. A control method for an image display device. A capability information transmitting unit configured to transmit capability information to the image processing device when communication with the image processing device is started, and the capability information includes a capability relating to a print sheet transmitted based on a communication protocol for printing. A method for controlling an image processing apparatus capable of communicating with an image display apparatus including an option including information corresponding to a display resolution of the image display apparatus together with an option indicating a standard,
A communication step of communicating with the image display device;
A resizing step for resizing an image to be transmitted based on information corresponding to the display resolution sent from the image display device when communication with the image display device is started by the communication step;
And a transmission step of transmitting the image resized by the resize step to the image display device.

Images