JP5038032B2 - Image display system, image playback device, photographing equipment - Google Patents

Description

  The present invention relates to a technique for reproducing image data recorded on a recording medium in an image reproducing apparatus and performing color processing on the reproduced image data for display on an image display apparatus.

  Conventionally, an image playback device such as a DVD player and an image display device such as a television receiver are known. The image reproduction device outputs still image or moving image image data to the image display device, and the image display device displays the received image data.

  In recent years, a digital interface such as HDMI (High Definition Multimedia Interface) is used for connection between an image reproduction device and an image display device. In HDMI, it is possible to transmit not only image data but also a control command between an image reproduction device and an image display device. Thereby, for example, the aspect ratio of the image display apparatus is notified to the image reproduction apparatus, and the image reproduction apparatus can output an image corresponding to the aspect of the image display apparatus (see, for example, Patent Document 1).

  In the image display apparatus, the ITU-R BT. 709 and ITU-R BT. An image display device such as a liquid crystal display capable of expressing a color gamut wider than 609 has been proposed (see, for example, Patent Document 2). In order to utilize the display capability of these wide color gamuts, an image display device that displays the input image data by performing a process of enhancing saturation is proposed (for example, see Patent Document 3). These image display devices can reproduce the input image more vividly.

  Here, the saturation enhancement process performed in the image display apparatus will be described. FIG. 9 is a diagram showing a state of saturation enhancement in the xy chromaticity diagram. In FIG. 9, 91 is an ITU-R BT. A color range that can be taken by the data of the 709 standard is shown, and 92 denotes a color range that can be displayed by the image display device. In this way, the color range 92 that can be displayed by the image display device is input image data ITU-R BT. If the color range 91 is wide, the saturation enhancement process is performed to reproduce the input image more vividly. As shown in FIG. 9, the saturation enhancement process is performed by ITU-R BT. This is color processing for further expanding the high-saturation portion 709.

JP 2005-109703 A JP-A-2005-234132 JP-A-2005-204136

  In the image display apparatus described above, ITU-R BT. Saturation emphasis processing is performed on the assumption that a 709 (or BT.609) signal is input. However, in some devices such as digital video cameras, ITU-R BT. In some cases, image data exceeding the range defined in 709 is generated, and the ITU-R BT. In some cases, image data having a color range exceeding 709 is input.

  Here, FIG. 10 shows ITU-R BT. The range of the digital data of the luminance signal Y and the color difference signals (Cr and Cb) that the signal 709 can take is shown. ITU-RBT. In 709, the luminance signal can range from 16 to 235, and the color difference signal can range from 16 to 240. Furthermore, it is possible to take data in a range that falls within the range of 0 <R, G, B <1 when converted from YCrCb to RGB (the hatched range in FIG. 10). However, in some devices such as digital video cameras, ITU-R BT. Image data in a range exceeding the signal range defined in 709 may be generated. For example, 16 or less and 235 or more image data may be generated for a luminance signal, and 16 or less and 240 or more image data may be generated for a color difference signal.

  That is, in some devices such as digital video cameras, ITU-R BT. A color range wider than 709 is expressed. FIG. 11 shows the relationship between these color ranges. The digital video camera is not limited to ITU-R BT. Image data is generated as a signal 709. For this reason, if the image display device is subjected to saturation enhancement processing similar to broadcast waves, excessive saturation enhancement is performed on image data that has already been recorded with high saturation. There was a problem of being overkill.

  In addition, when the digital video camera photographer intentionally sets the color (for example, conserving the saturation) and the image display device performs saturation enhancement processing, the photographer's intention There was also a problem that images were not displayed on the street.

  The present invention has been made in view of the above points, and an object thereof is to prevent inappropriate color processing from being performed in an image display apparatus.

An image display system according to the present invention reproduces and outputs image data recorded on a recording medium, and an image display device that obtains the reproduced image data from the image reproduction device and performs color processing for display. An image display system configured to limit color processing in the image display device that is generated according to a color gamut that can be represented by a photographing device in which the reproduced image data is photographed together with the reproduced image data. Output processing means for outputting the color processing control information to the image display device, and the image display device comprises control means for restricting color processing for the reproduced image data based on the color processing control information. And
An image reproduction apparatus according to the present invention is an image reproduction apparatus that reproduces image data recorded on a recording medium and outputs the image data to an image display apparatus. The image reproduction apparatus includes a reproduction apparatus that captures the reproduction image data together with the reproduction image data. The image display device further comprises output means for outputting color processing control information for restricting color processing in the image display device generated according to a color gamut that can be expressed to the image display device.
Imaging apparatus of the present invention, based the imaging means is associated with a shooting image data, the information of the photographing means corresponding to the color gamut that can be expressed in the imaging means the captured image data has been captured, the captured Color processing control information generating means for generating color processing control information for limiting color processing when displaying image data, and photographing of the color processing control information generated by the color processing control information generating means by the photographing means And recording means for recording on a recording medium in association with image data.
An image display apparatus according to the present invention is an image display apparatus that acquires reproduction image data from an image reproduction apparatus and performs color processing to display the image. The image display apparatus of the imaging device in which the reproduction image data is captured from the image reproduction apparatus . Based on the color processing control information acquisition means for acquiring color processing control information for limiting the color processing generated according to the color gamut that can be expressed, and the color processing control information acquired by the color processing control information acquisition means And control means for controlling color processing on the reproduced image data.
An image display method of the present invention reproduces and outputs image data recorded on a recording medium, and an image display device that obtains the reproduced image data from the image reproduction device, performs color processing, and displays the reproduced image data. The image display method according to claim 1, wherein the image reproduction device performs color processing in the image display device that is generated according to a color gamut that can be represented by a photographing device that has photographed the reproduction image data together with the reproduction image data. Executing a procedure for outputting color processing control information for restriction to the image display device, and executing a procedure for controlling the color processing on the reproduced image data based on the color processing control information. It is characterized by.
The program of the present invention is a program for controlling an image reproducing device that reproduces image data recorded on a recording medium and outputs the image data to an image display device, and the reproduced image data is photographed together with the reproduced image data. The computer is caused to execute a process of outputting, to the image display device, color processing control information for restricting color processing in the image display device that is generated according to a color gamut that can be expressed by the photographing apparatus .
The program of the present invention is a program for controlling an image display device that obtains reproduced image data from an image reproducing device and performs color processing and displays the reproduced image data from the image reproducing device. Processing for obtaining color processing control information for limiting the color processing generated according to the color gamut that can be expressed by the photographing device, and color processing for the reproduced image data based on the acquired color processing control information And a process for restricting the computer.

  According to the present invention, since color processing is performed on the reproduced image data based on the color processing control information in the image display device, inappropriate color processing can be prevented from being performed.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
(First embodiment)
As an example of the first embodiment of the present invention, an image display system including an image reproducing apparatus such as a DVD player for reproducing an optical disk such as a DVD and an image display apparatus (for example, a liquid crystal display) such as a television receiver will be described as an example. . FIG. 1 is a block diagram illustrating a configuration of an image display system according to the first embodiment. In FIG. 1, reference numeral 1000 denotes a recording medium (here, an optical disc such as a DVD) on which compressed image data is recorded, 1100 denotes an image reproducing device, and 1200 denotes an image display device.

  The image playback device 1100 plays back and outputs image data recorded on the optical disc 1000. Reference numeral 1101 denotes a disk interface (disk I / F), which includes an optical pickup, a motor, and the like. Reference numeral 1102 denotes an error correction unit. A separation unit 1103 separates the read data into image data and shooting information. Reference numeral 1104 denotes a decoder that decodes image data. An output unit 1105 outputs the decoded image data. Reference numeral 1110 denotes a control unit that controls the entire image reproduction apparatus 1100. An operation unit 1120 receives an input operation from the user. A color processing control information generation unit 1130 generates color processing control information for controlling color processing in the image display device 1200.

  The image display device 1200 acquires the reproduction image data from the image reproduction device 1100, performs color processing, and displays it. An input unit 1201 receives input of image data. An image processing unit 1210 includes a luminance processing unit 1211 and a color processing unit 1212. Reference numeral 1220 denotes a display unit which displays an image processed by the image processing unit 1210. Reference numeral 1230 denotes a control unit that controls the entire image display apparatus 1200.

<Processing Operation of Image Playback Device 1100>
When the image reproduction apparatus 1100 receives a reproduction operation from the operation unit 1120 by the user, the control unit 1110 instructs the disk I / F 1101 to read data from the optical disk 1000. The disk I / F 1101 reads designated data from the optical disk 1000 and outputs it to the error correction unit 1102. The error correction unit 1102 performs error correction on the data, and then outputs the data to the separation unit 1103.

  The separation unit 1103 separates the input data into image data, audio data, and shooting information, and then outputs the image data to the decoder 1104 and outputs the shooting information to the color processing control information generation unit 1130. The shooting information is data recorded as metadata of image data, and is generated when the image data is shot by a shooting device. In the present embodiment, shooting device information (shooting device ID), shooting mode information, and color adjustment information at the time of shooting are recorded as shooting information. In the present embodiment, for simplification of description, description of audio data is omitted, and image data and shooting information are handled. The decoder 1104 decodes the input image data encoded in the MPEG2 format or the like, and outputs the image data to the output unit 1105.

  The color processing control information generation unit 1130 generates color processing control information for controlling the color processing in the image display device 1200 based on the shooting information (this is processing by the color processing control information generation means in the present invention). .

  Here, the processing operation of the color processing control information generation unit 1130 will be described with reference to the flowchart of FIG. FIG. 2 is a flowchart for explaining the processing operation of the color processing control information generation unit 1130. In step S2001, based on the imaging device ID, it is determined whether the image data has been captured by the target imaging device. The photographing device ID is composed of the manufacturer ID and device ID of the photographing device that photographed the image data recorded on the optical disc 1000. In addition, the image reproduction apparatus 1100 includes a memory (not shown) in which a manufacturer ID and a list of device IDs of photographing apparatuses that can be controlled by the color processing control information generation unit 1130 are recorded. In step S2001, the photographing device ID is checked against the controllable device list recorded in the memory, and it is determined whether the image data recorded on the optical disc 1000 is image data photographed by the device to be processed. As a result, if the image data is captured by the target photographing device, the process proceeds to step S2002, and if not, the process proceeds to step S2005.

  In step S2002, based on the shooting mode information, it is determined whether or not shooting was performed in the manual mode at the time of shooting. If the image data is captured in the manual mode, the process proceeds to step S2003. If the image data is captured in the auto mode, the process proceeds to step S2005.

  In step S2003, based on the color adjustment information at the time of shooting, it is checked whether or not color adjustment has been performed at the time of shooting. The color adjustment information at the time of shooting is information on whether or not the user has made adjustments such as intentionally increasing the saturation at the time of shooting. If color adjustment has been performed, the process proceeds to step S2004. If color adjustment has not been performed, the process proceeds to step S2005.

  In step S2004, color processing control information for prohibiting saturation enhancement processing in the image display apparatus 1200 is generated. On the other hand, in step S2005, color processing control information that permits saturation enhancement processing in the image display apparatus 1200 is generated.

  As described above, when the user performs the color adjustment by operating in the manual mode, it is considered that the user has determined the color intentionally. In this case, the image display device 1200 performs the saturation enhancement process. Then, a color different from the color intended by the user is displayed. Therefore, when color adjustment is performed by the user, color processing control information that prohibits saturation enhancement processing in the image display apparatus 1200 is generated, so that the color is displayed by the user's intended color. it can.

  Returning to FIG. 1, the output unit 1105 includes a digital interface such as HDMI, and can exchange control commands with the input unit 1201 that is an interface of the image display device 1200 together with image data. Is possible. The output unit 1105 transmits a command related to color control when outputting image data or connecting to the image display device 1200.

  An example of command transmission is shown in FIG. As shown in FIG. 3, the output unit 1105 of the image reproduction device 1100 inquires of the image display device 1200 whether or not the color processing control information can be accepted (step S301). If the image display device 1200 can accept the color processing control information, the image display device 1200 performs a command notification that can be accepted via the input unit 1201 (step S302). When the image playback apparatus 1100 receives an acceptable command notification from the image display apparatus 1200 (that is, when the image display apparatus can accept the color processing control information), the image reproduction apparatus 1100 transmits the color processing control information together with the image data (step). S303).

<Processing Operation of Image Display Device 1200>
In the image display device 1200, the input unit 1201 is configured with a digital interface such as HDMI, like the output unit 1105 of the image playback device 1100. When receiving the image data and the color processing control information as input, the input unit 1201 outputs the image data to the image processing unit 1210 and the color processing control information to the control unit 1230.

  The image processing unit 1210 includes a luminance processing unit 1211 and a color processing unit 1212, and performs various types of image processing such as resizing processing and IP conversion on input image data. The luminance processing unit 1211 performs gamma processing, contour enhancement processing, and the like on the luminance signal. The color processing unit 1212 performs hue correction processing, saturation enhancement processing, and the like.

  The control unit 1230 receives color processing control information from the input unit 1201 and controls color processing in the color processing unit 1212 based on the color processing control information. That is, if the color processing control information is a content that prohibits the saturation enhancement processing, the color processing unit 1212 performs control so that the saturation enhancement processing is not performed. Further, if the content allows saturation enhancement processing, the color processing unit 1212 controls to perform saturation enhancement. This is an example of processing by the control means referred to in the present invention.

  The display unit 1220 displays an image based on the luminance signal and color signal processed by the image processing unit 1210.

  As described above, the image reproduction device 1100 according to the present embodiment generates color processing control information for controlling color processing in the image display device 1200 based on shooting information associated with image data, and performs image processing. The data is output to the display device 1200. The image display device 1200 controls color processing on the image data based on the color processing control information acquired from the image playback device 1100. Accordingly, it is possible to perform control such as prohibiting color processing (saturation emphasis processing or the like) in the image display apparatus 1200. For example, improper color processing can be prevented from being performed on image data that has already been captured using a wide color range, or on image data that is considered to have been intentionally set by the photographer.

  Note that the color processing control information generation unit 1130 of the image reproduction device 1100 according to the present embodiment generates the color processing control information based on the photographing device ID, the photographing mode information, and the color adjustment information at the time of photographing. If it is information at the time of photographing, for example, photographer information or the like may be used. Further, the color processing control information may be generated based on only one type of information, such as determination based on only the photographing device ID. For example, if it is known that the image data is image data captured by a video camera having a wide color range based on the imaging device ID, control such as prohibiting saturation enhancement processing in the image display apparatus 1200 can be performed.

  Further, although HDMI has been described as an example of the interface of the image playback device 1100 and the image display device 1200, the present invention is not limited to this. That is, as long as the interface can output the color processing control information together with the image data, any form such as transmission via a network may be used.

  Further, although the saturation enhancement process has been described as an example of the color process of the image display apparatus 1200 in the present embodiment, any process may be used as long as it is a process related to colors such as a change in hue.

(Second Embodiment)
In the second embodiment, an example in which color processing control information is generated at the time of shooting will be described. An image reproducing apparatus according to the second embodiment will be described by taking a photographing apparatus having an image recording / reproducing function as an example.

  FIG. 4 is a block diagram illustrating a configuration of an image display system according to the second embodiment. In FIG. 4, reference numeral 4000 denotes a recording medium (here, an optical disc such as a DVD) on which compressed image data is recorded, 4100 denotes a photographing device such as a digital video camera having an image recording / playback function, and 1200 denotes an image display device. The image display device 1200 is the same as that described in the first embodiment, and a detailed description thereof is omitted.

  In the photographing apparatus 4100, reference numeral 4300 denotes an imaging / recording unit, which records photographed image data on the optical disc 4000 by the imaging element. An image reproduction unit 4400 reproduces image data recorded on the optical disc 4000. An output unit 4500 outputs image data reproduced by the image reproduction unit 4400 to the image display device 1200.

<Processing of Imaging / Recording Unit 4300>
FIG. 5 shows a configuration of the imaging / recording unit 4300. In the imaging / recording unit 4300, reference numeral 4301 denotes an optical system such as a lens. Reference numeral 4302 denotes an image sensor such as a CCD. Reference numeral 4303 denotes an A / D converter. Reference numeral 4304 denotes a Y / C separation unit. Reference numeral 4305 denotes a luminance signal processing unit. Reference numeral 4306 denotes a color signal processing unit. Reference numeral 4307 denotes an encoder. Reference numeral 4308 denotes a recording unit. Reference numeral 4310 denotes a control unit. Reference numeral 4320 denotes an operation unit. Reference numeral 4330 denotes a color processing control information generation unit. The optical disc 4000 and the output unit 4500 correspond to the optical disc 4000 and the output unit 4500 in FIG.

  The processing operation of the imaging / recording unit 4300 will be described. When a photographing operation on the operation unit 4320 by the user is accepted, the photographing process is started. The image sensor 4302 converts the light beam input via the optical system 4301 into an image signal. The A / D conversion unit 4303 converts the image signal into digital data and sends it to the Y / C separation unit 4304. The Y / C separation unit 4304 separates the image data into a luminance signal and a color signal, and outputs them to the luminance signal processing unit 4305 and the color signal processing unit 4306, respectively. The luminance signal processing unit 4305 performs processing such as contour enhancement and gamma correction. The color signal processing unit 4306 performs processing such as hue and saturation conversion processing and white balance correction.

  The operation unit 4320 can accept a mode change operation or an image quality change operation from the user. That is, it is possible to accept a setting operation such as switching between manual shooting mode and auto shooting mode by the user, and making the color vivid. Control information received by the operation unit 4320 is input to the control unit 4310. The control unit 4310 controls the color signal processing unit 4306 based on color adjustment information by the user, and performs color adjustment such as increasing the color saturation. In addition, the control unit 4310 outputs the mode information and the color adjustment information to the color processing control information generation unit 4330.

  The color processing control information generation unit 4330 generates color processing control information for controlling color processing in the image display device 1200 based on the shooting mode information and color adjustment information output from the control unit 4310.

  Here, the processing operation of the color processing control information generation unit 4330 will be described with reference to the flowchart of FIG. FIG. 6 is a flowchart for explaining the processing operation of the color processing control information generation unit 4330. In step S6001, it is determined whether the shooting mode information is a manual mode. If the image was shot in the manual mode, the process proceeds to step S6002, and if the image was shot in the auto mode, the process proceeds to step S6004.

  In step S6002, it is determined whether color adjustment has been performed during shooting. If color adjustment has been performed, the process proceeds to step S6003. If color adjustment has not been performed, the process proceeds to step S6004.

  In step S6003, color processing control information for prohibiting saturation enhancement processing in the image display apparatus 1200 is generated. On the other hand, in step S6004, color processing control information that permits saturation enhancement processing in the image display apparatus 1200 is generated.

  Returning to FIG. 5, the color processing control information generation unit 4330 outputs the color processing control information generated as described above to the encoder 4307. The encoder 4307 encodes the image data output from the luminance signal processing unit 4305 and the color signal processing unit 4306 by a predetermined encoding method such as MPEG2. At this time, the encoder 4307 adds the color processing control information output from the color processing control information generation unit 4330 to the header portion of the encoded image data and outputs it to the recording unit 4308. The recording unit 4308 records the encoded image data on the optical disc 4000.

  The color processing control information generation unit 4330 also outputs the color processing control information generated as described above to the output unit 4500. The output unit 4500 outputs the output image data and color processing control information from the camera signal processing unit to the input unit 1201 of the image display device 1200 in the same manner as in the first embodiment. Accordingly, even when the image data from the camera signal processing unit is directly output to the image display device 1200 without being encoded, the color processing control information can be output together.

<Processing Operation of Image Playback Unit 4400>
FIG. 7 shows the configuration of the image playback unit 4400. In the image reproduction unit 4400, reference numeral 4401 denotes a disk I / F, which includes an optical pickup, a motor, and the like. Reference numeral 4402 denotes an error correction unit. A separation unit 4403 separates the read data into image data and photographing information. Reference numeral 4404 denotes a decoder which decodes image data. Reference numeral 4410 denotes a control unit that controls the entire photographing apparatus 4100. Reference numeral 4420 denotes an operation unit which accepts input from the user. A color processing control information acquisition unit 4430 acquires color processing control information to be output to the image display device 1200. The optical disc 4000 and the output unit 4500 correspond to the optical disc 4000 and the output unit 4500 in FIG.

  When the user receives a reproduction operation of data recorded on the optical disc 4000 from the operation unit 4420, the control unit 4410 instructs the disc I / F 4401 to read data from the optical disc 4000. The disk I / F 4401 reads specified data from the optical disk 4000 and outputs it to the error correction unit 4402. The error correction unit 4402 performs error correction on the data, and then outputs the data to the separation unit 4403.

  The separation unit 4403 separates input data into image data and audio data, and outputs the image data to the decoder 4404. In the present embodiment, the audio data is omitted for simplification of description. The decoder 4404 decodes the input image data encoded in the MPEG2 format or the like, and outputs the image data to the output unit 4500. In addition, the header information is output to the color processing control information acquisition unit 4430. The color processing control information acquisition unit 4430 acquires the color processing control information recorded in the header part by the above-described processing at the time of shooting, and outputs it to the output unit 4500. The output unit 4500 outputs the image data and the color processing control information to the input unit 1201 of the image display device 1200 by the same method as in the first embodiment.

<Processing Operation of Image Display Device 1200>
The configuration and processing operation of the image display apparatus 1200 are as described in the first embodiment, and a detailed description thereof is omitted. That is, the saturation enhancement processing of the color processing unit 1212 is switched based on the color processing control information acquired from the photographing device 4100.

  As described above, the photographing device 4100 in the present embodiment generates color processing control information based on photographing information at the time of photographing, adds it to the photographed image data, and records it on the optical disc 4000. Further, when reproducing the image data recorded on the optical disc 4000, the color processing control information added to the image data is acquired and output to the image display device 1200. The image display device 1200 performs color processing on the image data based on the color processing control information acquired from the photographing device 4100. As a result, the image data captured by the imaging device 4100 can be appropriately reproduced by any reproduction device as long as it acquires the color processing control information added to the image data and outputs it to the image display device 1200. It becomes possible. That is, as described in the first embodiment, even when the image reproduction device does not have a function of generating color processing control information based on shooting information, the color processing control information is output to the image display device 1200. Thus, the color processing can be controlled.

  Note that the color processing control information generation unit 4330 of the imaging device 4100 in this embodiment generates the color processing control information based on the shooting mode information and the color adjustment information at the time of shooting. You may use the information. For example, the user can select from the operation unit 4320 a mode for allowing or prohibiting the saturation enhancement processing in the image display apparatus 1200, and generate color processing control information based on the mode information. May be.

  In the present embodiment, the example in which the color processing control information is recorded in the header portion of the captured image data has been described. In addition, for example, when the color processing control information changes with time, the color processing control information may be periodically recorded in the captured image data. FIG. 8 is a diagram showing the structure of the header part in MPEG2. In MPEG2, a picture header is added to one frame of data. Therefore, when color processing control information is periodically added, it can be implemented by a method of periodically adding it to a user-defined area or the like of a picture header. Further, the color processing control information may be periodically added by a method other than the above.

  Further, the present invention is not limited to recording the color processing control information in the header part of the captured image data. For example, as long as the corresponding color processing control information can be acquired from the photographed image data, such as a method of recording in association with the photographed image data, any form may be used.

  The object of the present invention can also be achieved by supplying a storage medium storing software program codes for realizing the functions of the above-described embodiments to a system or apparatus. In this case, the computer (or CPU or MPU) of the system or apparatus reads and executes the program code stored in the storage medium.

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

  As a storage medium for supplying the program code, for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.

  Further, the functions of the above-described embodiments are not limited to being realized by executing the program code read by the computer. For example, an OS (basic system or operating system) running on the computer performs part or all of the actual processing based on an instruction of the program code, and the functions of the above-described embodiments are realized by the processing. May be.

  Further, the program code read from the storage medium may be written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. In this case, after being written in the memory, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instruction of the program code, and the function of the above-described embodiment is performed by the processing. Is realized.

It is a block diagram which shows the structure of the image display system in 1st Embodiment. 6 is a flowchart for explaining a processing operation of a color processing control information generation unit in the first embodiment. It is the figure which showed the notification of the command of the reproducing | regenerating apparatus and display apparatus in 1st Embodiment. It is a block diagram which shows the structural example of the image display system in 2nd Embodiment. It is a block diagram which shows the structure of the imaging and recording part in 2nd Embodiment. It is a flowchart for demonstrating the processing operation of the color processing control information generation part in 2nd Embodiment. It is a block diagram which shows the structure of the reproducing part in 2nd Embodiment. It is a figure which shows the recording position of the color processing control information in 2nd Embodiment. It is a conceptual diagram which shows saturation emphasis. It is a figure which shows the color range of YCrCb space. It is a figure which shows the color range of xy chromaticity diagram.

Explanation of symbols

1000 Optical disc 1100 Image playback device 1200 Image display device 1101 Disc I / F
1102 Error correction unit 1103 Separation unit 1104 Decoder 1105 Output unit 1110 Control unit 1120 Operation unit 1201 Input unit 1210 Image processing unit 1211 Luminance processing unit 1212 Color processing unit 1220 Display unit 1230 Control unit

Claims (17)

An image reproducing device for reproducing and outputting the image data recorded on the recording medium;
An image display system configured to acquire the reproduced image data from the image reproducing device and display the image by performing color processing;
Along with the reproduced image data , color processing control information for limiting color processing in the image display device, which is generated according to a color gamut that can be expressed by a photographing device that has photographed the reproduced image data, is output to the image display device. Output means for
The image display system includes a control unit that restricts color processing on the reproduced image data based on the color processing control information. The color processing control information is information that prohibits the color processing in the image display device when a color gamut that can be expressed by the photographing apparatus exceeds a predetermined color gamut. Image display system. The image reproduction device includes color processing control information generation means for generating the color processing control information based on shooting information associated with the reproduction image data.
The image display system according to claim 2, wherein the photographing information is information including at least one of photographing device information, photographing mode information, color adjustment information at the time of photographing, and photographer information. .   The image display system according to claim 1, wherein the image reproduction device includes color processing control information acquisition means for acquiring the color processing control information associated with the reproduction image data.   The image reproduction apparatus includes: a photographing unit; a color processing control information generating unit that generates the color processing control information based on photographing information associated with image data captured by the photographing unit; and the color processing control information generating unit. 5. The image display system according to claim 4, further comprising: a recording unit that records the color processing control information generated by the recording unit on the recording medium in association with image data captured by the imaging unit.   The image display system according to claim 5, wherein the color processing control information is added to the captured image data.   The image display system according to claim 5 or 6, wherein the shooting information is information including at least one of shooting mode information, color adjustment information at the time of shooting, and photographer information.   The image display system according to any one of claims 5 to 7, wherein the color processing control information generating unit periodically generates the color processing control information.   The image display system according to claim 1, wherein the color processing control information is information indicating whether or not color processing is performed in the image display device.   The image display system according to claim 1, wherein the color processing in the image display device is saturation enhancement processing.   The image display system according to claim 1, wherein the color processing in the image display device is hue correction processing. An image reproducing device that reproduces image data recorded on a recording medium and outputs the image data to an image display device,
Along with the reproduced image data , color processing control information for limiting color processing in the image display device, which is generated according to a color gamut that can be expressed by a photographing device that has photographed the reproduced image data, is output to the image display device. An image reproduction apparatus comprising output means for performing Photographing means;
Restriction associated with the shadow image data, based on the information of the photographing means corresponding to the color gamut that can be expressed in the imaging means the captured image data has been captured, the color processing when displaying the captured image data Taking Color processing control information generating means for generating color processing control information for
An imaging apparatus comprising: a recording unit that records the color processing control information generated by the color processing control information generation unit on a recording medium in association with captured image data by the imaging unit. An image display device that acquires playback image data from an image playback device, performs color processing, and displays the image processing device.
Color processing control information acquisition means for acquiring color processing control information for limiting the color processing generated according to a color gamut that can be expressed by a photographing device that has captured the reproduced image data from the image reproduction device;
An image display device comprising: control means for controlling color processing for the reproduced image data based on the color processing control information acquired by the color processing control information acquisition means. An image display method that reproduces and outputs image data recorded on a recording medium, and an image display device that obtains the reproduced image data from the image reproduction device and performs color processing to display the image data. ,
Color processing control information for limiting color processing in the image display device, which is generated according to a color gamut that can be expressed by a photographing device in which the playback image data is shot , together with the playback image data. Executing a procedure of outputting to the image display device;
An image display method, wherein the image display device executes a procedure for controlling color processing on the reproduced image data based on the color processing control information. A program for controlling an image reproduction device that reproduces image data recorded on a recording medium and outputs the image data to an image display device,
Along with the reproduced image data , color processing control information for limiting color processing in the image display device, which is generated according to a color gamut that can be expressed by a photographing device that has photographed the reproduced image data, is output to the image display device. A program that causes a computer to execute processing to be performed. A program for controlling an image display device that obtains playback image data from an image playback device, performs color processing, and displays the data.
Processing for acquiring color processing control information for limiting the color processing generated according to a color gamut that can be expressed by a photographing device that has captured the reproduced image data from the image reproduction device;
A program for causing a computer to execute processing for limiting color processing on the reproduced image data based on the acquired color processing control information.

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