JP2008035124A - Image reproducing device and image reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology which makes it possible to display a specific area of image data without distorting the image and sufficiently utilizing capacity of a display device. <P>SOLUTION: A compressed image file 300 has trimming information corresponding to a kind or multiple kinds of aspect ratios. An image reproducing device decides an aspect ratio of the display area for reproducing and outputting the compressed image file 300, and performs trimming using the trimming information corresponding to the decided aspect ratio. The device performs magnification of the trimming image according to a size of the display area, and outputs it to an LCD panel 217 or the display device 220 as reproduced image data. When there is no trimming information corresponding to the decided trimming information, the device transforms and uses one of trimming information for corresponding to the decided aspect ratio. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image reproducing device and an image reproducing method for outputting reproduced image data to a display device.

  Conventional television receivers mainly have a display area having an aspect ratio of 4: 3. However, in recent years, the number of devices having an aspect ratio of 16: 9, such as wide vision receivers or high vision receivers, is increasing.

  In addition, the aspect ratios of image sensors used in recent digital cameras and the like include various types of aspect ratios such as 4: 3 for so-called compact cameras, 3: 2 for single-lens reflex cameras, and 16: 9 for high-definition cameras. Is adopted. For this reason, digital image data captured using a recent digital camera or the like may have a plurality of different types of aspect ratios.

Some digital cameras have an automatic reproduction function of image data called a slide show. Then, as disclosed in Patent Document 1, in automatic reproduction of image data, the image data is trimmed using trimming information specified in advance by the user, and scaled according to the size of the display area of the display device. A technique for displaying images is known.
JP 2005-176136 A

  However, when the aspect ratio of the trimmed area is different from the aspect ratio of the display area of the display device, the following problem occurs.

  For example, when the aspect ratio of the trimmed area is 4: 3 and the aspect ratio of the display area is 16: 9, the aspect ratio of the display image is distorted when the above-described scaling process during automatic reproduction is applied (FIG. 10). . Further, when the scaling process is performed while maintaining the aspect ratio, a part of the display area is not used (FIG. 11), and thus the display device cannot be fully utilized.

  The present invention has been made in view of such a situation. That is, an object of the present invention is to provide a technique that enables display of a specific area of image data without distorting the image and fully utilizing the capability of the display device.

  In order to solve the above-described problems, an image reproduction device according to the present invention includes an acquisition unit that acquires image data having trimming information for specifying a rectangular region in image data, and a display region of a display device based on the trimming information. Extracting means for extracting a trimmed image having the same aspect ratio from the image data, and output means for scaling the trimmed image to the size of the display area and outputting it to the display device, To do.

  According to another aspect of the present invention, there is provided an image reproducing device for acquiring image data having a plurality of trimming information for specifying rectangular regions having different aspect ratios in the image data, and a display of the display device. When the plurality of trimming information includes first trimming information specifying a rectangular area having the same aspect ratio as the area, the rectangular area specified by the first trimming information is extracted from the image data as a trimmed image. And an output unit that scales the trimmed image to the size of the display area and outputs the scaled image to the display device.

  Further, the image reproduction method of the present invention has an acquisition step of acquiring image data having trimming information for specifying a rectangular area in the image data, and has the same aspect ratio as the display area of the display device based on the trimming information. An extraction step of extracting a trimmed image from the image data; and an output step of scaling the trimmed image to the size of the display area and outputting the scaled image to the display device.

  In addition, another image reproduction method of the present invention includes an acquisition step of acquiring image data having a plurality of trimming information for specifying rectangular regions having different aspect ratios in the image data, and display on the display device. When the plurality of trimming information includes first trimming information specifying a rectangular area having the same aspect ratio as the area, the rectangular area specified by the first trimming information is extracted from the image data as a trimmed image. And an output step of scaling the trimmed image to the size of the display area and outputting it to the display device.

  Other features of the present invention will become more apparent from the accompanying drawings and the following description of the best mode for carrying out the invention.

  With the above configuration, according to the present invention, the following becomes possible. That is, it is possible to display a specific area of image data without distorting the image and fully utilizing the capability of the display device.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The individual embodiments described below will help to understand various concepts, such as the superordinate concept, intermediate concept and subordinate concept of the present invention.

  The technical scope of the present invention is determined by the scope of the claims, and is not limited by the following individual embodiments. In addition, not all combinations of features described in the embodiments are essential to the present invention.

  In this specification, “trimming information” is information for specifying a predetermined rectangular area in image data. “Trimming” means extracting a predetermined rectangular area from image data. As will be described later, the rectangular area extracted by “trimming” does not necessarily match the rectangular area specified based on “trimming information”.

[First Embodiment]
FIG. 2 is a block diagram showing the configuration of the image reproduction device 200 according to the first embodiment of the present invention.

  As shown in FIG. 2, the image reproducing apparatus 200 includes an optical system 201 including an imaging lens, a diaphragm, a focus lens, a shutter, and the like, and an imaging element 202 that converts an optical image formed through the optical system 201 into an electrical signal. In addition, an amplifier 203 that amplifies the analog signal output of the image sensor 202 and an A / D converter 204 that converts the output of the amplifier 203 into a digital signal are provided. The digital signal output from the A / D converter 204 is provided with a signal processing circuit 205 that performs pixel processing, luminance color separation, color space conversion, white balance, aperture, and other signal processing. Then, the image reproduction device 200 controls the shutter of the optical system 201 in accordance with an imaging instruction from the user notified to the system controller 206 through the operation unit 207. Then, the image exposed to the image sensor 202 is read out through the amplifier 203 and the A / D converter 204, and this is converted into a luminance color difference signal by the signal processing circuit 205. Then, the image data is written into the memory 209 through the system controller 206 and the memory controller 208.

  The written image data is input from the memory 209 to the compression circuit 210 through the memory controller 208 and the system controller 206.

  The compression circuit 210 performs still image compression, for example, JPEG compression.

  The compressed image data output from the compression circuit 210 is temporarily written into the memory 209 through the system controller 206 and the memory controller 208. Thereafter, information such as a header is added by the system controller 206, and is recorded on the recording medium 214 through the memory controller 208, the system controller 206, and the recording medium interface 213.

  The compressed image data recorded on the recording medium 214 in this manner is reproduced according to a reproduction instruction notified to the system controller 206 through the operation unit 207.

  The compressed image data is reproduced in the following procedure. The compressed image data is temporarily written from the recording medium 214 into the memory 209 through the interface 213, the system controller 206, and the memory controller 208. The compressed image data written in the memory 209 is input to the decompression circuit 211 through the memory controller 208 and the system controller 206.

  The decompression circuit 211 decompresses compressed image data compressed by a compression method such as JPEG, and outputs image data composed of luminance color difference signals.

  Image data output from the decompression circuit 211 is temporarily written in the memory 209 through the system controller 206 and the memory controller 208.

  The image data once written in the memory 209 is input to the scaling circuit 212 through the memory controller 208 and the system controller 206.

  The scaling circuit 212 scales the input image data to an image size suitable for display and outputs the image data.

  For example, consider a case where input image data is horizontal 1600 pixels and vertical 1200 lines, and this is displayed (output) by the NTSC system on an LCD panel 217 having a display area of horizontal 640 pixels and vertical 480 lines. In this case, the scaling circuit 212 performs scaling processing of horizontal 2/5 times and vertical 2/5 times on the input image data, and display image data (reproduced image) having a size of 640 horizontal pixels and 480 vertical lines. Data).

  Also, consider a case where the same input image data is displayed on the display device 220 (for example, a high-definition television having a display area of 1440 pixels horizontally and 1080 lines vertical) in a high-definition system. In this case, the scaling circuit 212 performs scaling processing of horizontal 9/10 times and vertical 9/10 times on the input image data, and outputs display image data having a size of horizontal 1440 pixels and vertical 1080 lines.

  For the scaling process in the scaling circuit 212, an interpolation method such as bilinear or bicubic can be used.

  Display image data that is an output of the scaling circuit 212 is written into the memory 209 through the system controller 206 and the memory controller 208.

  The system controller 206 performs black painting around the display image data written in the memory 209 through the memory controller 208 according to conditions described later.

  Blacking is to write data that is darkly displayed on the LCD panel 217 or the like to the memory 209.

  Display image data and black paint data written in the memory 209 are repeatedly read from the memory 209 according to the display rate of the LCD panel 217 or the display device 220.

  The display rate is, for example, 29.97 frames / second in the NTSC system and 25 frames / second in the PAL system.

  The image is displayed on a display device instructed by the user through the operation unit 207. When there is no instruction from the user, an image is displayed on the LCD panel 217 (display area).

  When displaying an image, the system controller 206 outputs a control signal to the switch 215 to determine an output destination of display image data. The display image data is read from the memory 209 through the memory controller 208 and output to the switch 215.

  When the output destination of the switch 215 is the LCD controller 216, the LCD controller 216 converts the display image data into an LCD panel drive signal, and drives the LCD panel 217 to display the image on the LCD panel 217 (display area thereof). indicate.

  When the output destination of the switch 215 is the display device 220, the video encoder 218 converts the display image data into a video signal and outputs the video signal to the display device 220 through the connector 219. Then, the display device 220 demodulates the video signal, so that an image is displayed in the display area of the display device 220.

  Next, automatic reproduction (so-called slide show) of image data using trimming information in the present embodiment will be described with reference to FIGS. Although a slide show will be described here, the concept of the present embodiment can be applied to the case of reproducing only one image data.

  FIG. 3 shows a file format structure of the compressed image data recorded in the image reproduction apparatus 200 of FIG. Further, the file according to the format of FIG. 3 is hereinafter referred to as a compressed image file.

  As shown in FIG. 3, the compressed image file 300 includes a header portion 301 and a compressed stream portion 302 in which a bit stream of compressed image data is stored.

  The header unit 301 includes a shooting information unit 303 that records shooting information such as date and time, shutter speed, and aperture value. Also included is a print information section 305 that holds a mark indicating whether or not to print an image included in the compressed image file 300, trimming information used at the time of printing, and the like. Also included is a compression information unit 306 that holds information such as a quantization table and an encoding table necessary for decompressing the compressed data in the compressed stream unit 302. Also included is a reproduction information unit 304 that holds information used when reproducing an image included in the compressed image file 300.

  The reproduction information unit 304 includes reproduction direction information 307 that indicates an image rotation direction during reproduction, and an automatic reproduction mark 308 that indicates whether or not to be an object of automatic reproduction. Also, 4: 3 trimming information 309 used when the aspect ratio of the image display area is 4: 3 and 16: 9 trimming used when the aspect ratio of the image display area is 16: 9. Information 310 is included. The trimming information is not limited to two types. That is, for example, trimming information used when the aspect ratio of the display area is 3: 2 may be further included. On the contrary, only one piece of trimming information may be included.

  The trimming information for 4: 3 309 and the trimming information for 16: 9 310 include, for example, a start point (Xs, Ys) and an end point (Xe, Ye) of a trimming frame (rectangular region) as shown in FIG. ). Of course, this is merely an example, and for example, the trimming information may be configured from the start point (Xs, Ys) of the trimming frame and the width and height of the trimming frame. However, in the first embodiment, it is assumed that the trimming frame and its aspect ratio can be specified only from the trimming information.

  FIG. 1 is a flowchart showing a flow of automatic reproduction using trimming information in the image reproduction apparatus 200 of FIG. The automatic reproduction operation by the image reproduction device 200 in FIG. 2 will be described below according to the flowchart in FIG. Unless otherwise specified, the following steps are realized by the system controller 206 or a CPU (not shown) controlling each component of the image reproducing device 200.

  When the system controller 206 receives an instruction to start automatic playback from the user via the operation unit 207, first, the aspect ratio of the display area is determined (S101).

  The aspect ratio of the display area is determined by the following procedure. The switch 215 determines the display device selected as the output destination of the reproduction image data. Then, the aspect ratio of the display area of the display device selected by the switch 215 is determined as the aspect ratio of the final display area. When the display device can set a display area having a plurality of aspect ratios, the aspect ratio of the display area set for the display device by the user is used.

  For example, when the LCD panel 217 is selected, the aspect ratio of the display area of the LCD panel 217 is set as the aspect ratio of the display area. When the display device 220 is selected, it is determined by determining what aspect ratio the user is instructing for the display area of the display device 220.

  For example, when the switch 215 selects the LCD panel 217 and the display area of the LCD panel 217 has an aspect ratio of 4: 3, the aspect ratio of the display area is determined to be 4: 3. When the switch 215 selects the display device 220, when the user instructs the display device 220 to output with an aspect ratio of, for example, 16: 9, the aspect ratio of the display area is determined to be 16: 9. To do. When the user instructs output at an aspect ratio of 4: 3, the aspect ratio of the display area is determined to be 4: 3. The user's instruction is given via the operation unit 207, for example. Instead of the user's instruction, the display device 220 may notify the image playback device 200 of the aspect ratio of the display area via the connector 219.

  Next, a variable n indicating a file number to be automatically reproduced is initialized to 1 (S102).

  Next, the n-th compressed image file 300 is acquired from the recording medium 214 (thereby, image data is eventually acquired), and it is determined whether or not the automatic trimming and scaling function of the image reproduction device 200 is valid. (S103). The validity or invalidity of the automatic trimming and scaling function is assumed to be designated in advance by the user in the system controller 206 through the operation unit 207.

  When the automatic trimming and scaling function is invalid, reproduced image data for full screen display is output (S104).

  When outputting for full screen display, the method of generating reproduced image data to be output differs depending on the aspect ratio of the captured image data and the aspect ratio of the display area determined in step S101. The relationship between the aspect ratio of the image data and the aspect ratio of the display area may be, for example, six cases as shown in FIG. 15, and the processing in each case will be described with reference to FIGS.

  When the aspect ratio of the image data is 4: 3 and the aspect ratio of the display area is 4: 3, the aspect ratio of the image data is not converted as shown in FIG. Then, reproduction image data is generated by scaling the size of the image data according to the size of the display area.

  When the aspect ratio of the image data is 4: 3 and the aspect ratio of the display area is 16: 9, the system controller 206 performs black painting on the left and right sides of the image data as shown in FIG. Thus, conversion to an aspect ratio of 16: 9 is performed. Then, reproduction image data is generated by scaling the size of the image data according to the size of the display area.

  When the aspect ratio of the image data is 16: 9 and the aspect ratio of the display area is 4: 3, the system controller 206 performs black painting on the top and bottom of the image data as shown in FIG. Conversion to an aspect ratio of 4: 3 is performed. Then, reproduction image data is generated by scaling the size of the image data according to the size of the display area.

  When the aspect ratio of the image data is 16: 9 and the aspect ratio of the display area is 16: 9, the aspect ratio of the image data is not converted as shown in FIG. Then, reproduction image data is generated by scaling the size of the image data according to the size of the display area.

  When the aspect ratio of the image data is 3: 2 and the aspect ratio of the display area is 4: 3, the system controller 206 performs black painting on the top and bottom of the image data as shown in FIG. To convert the aspect ratio to 4: 3. Then, reproduction image data is generated by scaling the size of the image data according to the size of the display area.

  When the aspect ratio of the image data is 3: 2 and the aspect ratio of the display area is 16: 9, the system controller 206 performs black painting on the left and right sides of the image data as shown in FIG. , Conversion to an aspect ratio of 16: 9 is performed. Then, reproduction image data is generated by scaling the size of the image data according to the size of the display area.

  When the automatic trimming and scaling function is valid in step S103, the following determination is performed. That is, it is determined whether the trimming information of the 4: 3 trimming information 309 and the 16: 9 trimming information 310 stored in the reproduction information section 304 of the header section 301 of the acquired compressed image file 300 is valid (S105). ).

  Whether the trimming information is valid or invalid can be determined by, for example, defining trimming information as invalid when (Xs, Ys) = (Xe, Ye) = (0,0) and defining other as valid. become. Alternatively, the determination can be made by adding a flag indicating validity / invalidity of each trimming information to the header portion 301 or the like.

  If none of the trimming information is valid, a full screen display (S104) is performed.

  If any trimming display is valid, it is next determined whether trimming information for the same aspect ratio as the aspect ratio of the display area is valid (S106). For example, when the aspect ratio of the display area is 4: 3 and the content of the trimming information 309 for 4: 3 is (Xs, Ys) = (Xe, Ye) = (0,0), it is determined to be invalid. The In addition, when the trimming information does not exist in the reproduction information unit 304, for example, when the aspect ratio of the display area is 3: 2, it is determined to be invalid.

  If trimming information for the same aspect ratio as the aspect ratio of the display area is valid, reproduced image data for trimming display is output using the trimming information (S107).

  The trimming display output will be described with reference to FIG.

  FIG. 7 is a diagram when the aspect ratio of the image data is 4: 3 and the aspect ratio of the display area is 16: 9.

  As shown in FIG. 7A, the trimming frame is 16: 9. The scaling circuit 212 displays a trimmed image (image data obtained as a result of trimming) so that the area surrounded by the trimming frame is displayed on the full screen in the display area of the LCD panel 217 or the display area of the display device 220. A scaling process is performed to obtain reproduced image data. In some cases, the trimming frame extends beyond the image data area. In this case, as shown in FIG. 7B, the address arrangement on the memory 209 for the trimmed image data is adjusted so that the image data in the trimming frame is centered. Then, black and white areas are added to the left and right by the system controller 206, and the image is scaled according to the size of the display area to obtain reproduced image data.

  The reproduction image data generated in this way is read from the memory 209 and output to the LCD panel 217 or the display device 220.

  If the trimming information for the same aspect ratio as the aspect ratio of the display area is invalid in step S106, it is next determined whether or not the automatic conversion function is valid (S108).

  It is assumed that whether the automatic conversion function is valid is instructed by the user to the system controller 206 through the operation unit 207 prior to the start of automatic reproduction. If there is no prior instruction as to whether or not the automatic conversion function is valid, for example, the system controller 206 determines that the automatic conversion function is valid. Of course, the image reproduction device 200 may be configured to be determined to be invalid in this case.

  If the automatic conversion function is invalid, output for full screen display is performed (S104).

  If the automatic conversion function is valid, one piece of valid trimming information is selected from the reproduction information section 304, and the selected trimming information is converted in accordance with the aspect ratio of the display area (S109).

  The trimming information conversion process will be described with reference to FIG.

  FIG. 9A shows a conversion process when the aspect ratio of the display area is 16: 9 and the aspect ratio of the trimming frame specified based on the trimming information is 4: 3. As shown in FIG. 9A, the conversion process is performed by evenly expanding the trimming frame having an aspect ratio of 4: 3 until the aspect ratio becomes 16: 9.

  Further, as shown in FIG. 9B, the conversion process may be performed by narrowing the trimming frame having an aspect ratio of 4: 3 uniformly vertically until the aspect ratio becomes 16: 9. Of course, how to widen or narrow the trimming frame is not limited to left and right or up and down evenly. For example, the trimming frame may be widened to 16: 9 in one right direction.

  FIG. 9C shows the conversion process when the aspect ratio of the display area is 4: 3 and the aspect ratio of the trimming frame specified based on the trimming information is 16: 9. As shown in FIG. 9C, the conversion process is performed by narrowing the trimming frame having an aspect ratio of 16: 9 equally to the left and right.

  Further, as shown in FIG. 9D, the conversion process may be performed by expanding a trimming frame having an aspect ratio of 16: 9 uniformly up and down until the aspect ratio becomes 4: 3. Of course, how to widen or narrow the trimming frame is not limited to the left and right or the top and bottom evenly. For example, the trimming frame may be narrowed to 4: 3 in one right direction.

  Image data is trimmed based on the aspect information obtained by the above conversion process, and the obtained trimmed image is scaled according to the size of the display area to generate and output reproduced image data (S107).

  Next, it is determined whether or not the automatic reproduction of all files held in the recording medium 214 has been completed (S110).

  If automatic reproduction of all files has not been completed, the file number n is incremented by 1 (S111), and the same processing is repeated.

  When the automatic reproduction of all the files held on the recording medium 214 is completed, the process of this flowchart is terminated.

  Although not shown, the compressed image file indicating that the automatic reproduction mark 308 is not subject to automatic reproduction is excluded from the above-described processing target.

  In the flowchart shown in FIG. 1, the image reproducing device 200 determines in step S106 whether or not the trimming information for the same aspect ratio as the aspect ratio of the display area is valid. However, this process can be omitted. In this case, if Yes in step S105, the process proceeds to step S108. In step S109, the trimming information is converted. If the trimming information held in the compressed image file 300 is the trimming information for the same aspect ratio as the aspect ratio of the display area, the conversion processing is not performed.

  Further, in the present embodiment, when the trimming frame protrudes from the image data, the region corresponding to the protruding portion as shown in FIG. However, as shown in FIG. 8, the image data remaining in the trimming frame may be trimmed again so as to have the aspect ratio of the display area.

  As described above, according to the present embodiment, the compressed image file 300 has trimming information corresponding to one or more types of aspect ratios. The image reproduction apparatus determines the aspect ratio of the display area where the compressed image file 300 is reproduced and output, and performs trimming using the trimming information corresponding to the determined aspect ratio. Then, the trimmed image is scaled according to the size of the display area, and is output to the LCD panel 217 or the display device 220 as reproduced image data. When there is no trimming information corresponding to the determined aspect ratio, any trimming information is converted and used so as to correspond to the determined aspect ratio.

  As a result, even when the aspect ratio of the trimming frame specified based on the trimming information and the aspect ratio of the display area of the display device are different, the image can be used without being distorted and the capability of the display device can be fully utilized. It becomes. Furthermore, the same effect can be achieved even when the trimming frame is not specified only from the trimming information.

  In the present embodiment, the image reproducing apparatus 200 having an imaging function is used as an example, but the imaging function and the recording function may not be provided. Therefore, for example, a playback device such as a hard disk recorder or a DVD recorder may be used as the image playback device. Furthermore, the image reproduction device and the display device may be integrated. That is, for example, a television receiver can be used as the image reproducing apparatus of the present embodiment.

[Second Embodiment]
In the first embodiment, the trimming information is associated with a predetermined aspect ratio, and the trimming frame (rectangular region) and its aspect ratio can be specified only from the trimming information. In the second embodiment, a trimming information format in which the trimming frame and its aspect ratio cannot be specified only from the trimming information will be described. According to the second embodiment, the flexibility regarding the format of the trimming information is improved.

  In the present embodiment, the configuration of the image reproduction device 200 is the same as that of the first embodiment, and thus the description thereof is omitted.

  FIGS. 12B and 12C show examples of trimming information according to the second embodiment.

  In FIG. 12B, the trimming information is composed of the coordinates (X0, Y0) of the center point of the trimming frame and the length LH in the height direction of the trimming frame.

  An automatic reproduction process performed by the image reproduction apparatus 200 when the compressed image file 300 holds trimming information in the format of FIG. 12B will be described with reference to the flowchart of FIG.

  In the flowchart of FIG. 13, steps that perform the same processing as in the flowchart of FIG. As in FIG. 1, the following steps are realized by the system controller 206 or a CPU (not shown) controlling each component of the image reproducing device 200 unless otherwise specified.

  If the automatic trimming and scaling function is valid in step S103, it is determined in step S1301 whether the trimming information is valid. For example, it is determined to be invalid when the length LH in the height direction of the trimming frame included in the trimming information is zero, and valid otherwise.

  In step S1302, a trimming frame corresponding to the display aspect ratio is generated from the trimming information.

  That is, as shown in FIG. 14A, the center is (X0, Y0), the length in the height direction is LH, and the aspect ratio of the display area is, for example, 4: 3 or 16: 9. Generate a trimming frame.

  Similarly, as shown in FIG. 12C, the trimming information may be constituted by the coordinates (X0, Y0) of the center point of the trimming frame and the horizontal length LW of the trimming frame. In this case, as shown in FIG. 14B, for example, a trimming frame of 4: 3 or 16: 9 corresponding to the aspect ratio of the display area is generated.

  As described above, according to the present embodiment, even when the trimming frame and its aspect ratio cannot be specified only from the trimming information, the image reproduction device 200 uses the aspect ratio of the display area to trim the trimming frame. And trimming.

  As a result, as in the first embodiment, it is possible to realize display that does not distort an image and that fully utilizes the capabilities of the display device. Therefore, it becomes easy to hold trimming information having a more flexible format in the compressed image file.

[Other Embodiments]
The processing of each embodiment described above may provide a system or apparatus with a storage medium storing software program codes embodying each function. The functions of the above-described embodiments can be realized by the computer (or CPU or MPU) of the system or apparatus reading and executing 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 storage medium storing the program code constitutes the present invention. As a storage medium for supplying such a program code, for example, a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, or the like can be used. Alternatively, a CD-ROM, CD-R, magnetic tape, nonvolatile memory card, ROM, or the like can be used.

  The functions of the above-described embodiments are not only realized by executing the program code read by the computer. In some cases, 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. include.

  Furthermore, 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. After that, 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 functions of the above-described embodiments are realized by the processing. Is also included.

6 is a flowchart showing a flow of automatic reproduction using trimming information in the image reproduction apparatus 200 according to the first embodiment. 1 is a block diagram showing a configuration of an image reproduction device according to a first embodiment of the present invention. 3 is a diagram illustrating a file format structure of compressed image data recorded in the image reproduction device 200. FIG. It is a figure which shows the example of a production | generation of the reproduction | regeneration image data for a full screen display. It is a figure which shows the example of a production | generation of the reproduction | regeneration image data for a full screen display. It is a figure which shows the example of a production | generation of the reproduction | regeneration image data for a full screen display. It is a figure which shows the example of a production | generation of the reproduction | regeneration image data for trimming display. It is a figure which shows the production | generation example of the reproduction | regeneration image data for a trimming display in case a trimming frame protrudes from image data. It is a figure which shows the example of the conversion process of trimming information. It is a figure which shows an example of the trimming and display of the image data in a prior art. It is a figure which shows an example of the trimming and display of the image data in a prior art. It is a figure which shows the example of the format of trimming information. 12 is a flowchart showing a flow of automatic reproduction using trimming information in the image reproduction apparatus 200 according to the second embodiment. It is a figure explaining the method to produce | generate a trimming frame in 2nd Embodiment. It is a figure which shows the example of the relationship between the aspect-ratio of image data, and the aspect-ratio of a display area.

Claims (10)

Acquisition means for acquiring image data having trimming information for specifying a rectangular area in the image data;
Extraction means for extracting from the image data a trimmed image having the same aspect ratio as the display area of the display device based on the trimming information;
Output means for scaling the cropped image to the size of the display area and outputting it to the display device;
An image reproducing apparatus comprising: The trimming information includes information for specifying an aspect ratio of the rectangular area,
The extraction unit specifies the rectangular area using information for specifying the aspect ratio, has an aspect ratio identical to that of the display area, and includes an area including at least a part of the rectangular area as the trimmed image. The image reproduction device according to claim 1, wherein the image reproduction device is extracted from the image data. The trimming information includes information on coordinates in the image data, and information on the width or height of the rectangular area,
The extraction means identifies the rectangular area using coordinate information in the image data, width or height information of the rectangular area, and an aspect ratio of the display area, and the identified rectangular area is The image reproducing apparatus according to claim 1, wherein the image data is extracted from the image data as a trimmed image. Acquisition means for acquiring image data having a plurality of trimming information for specifying rectangular regions each having a different aspect ratio in the image data;
When the first trimming information specifying a rectangular area having the same aspect ratio as the display area of the display device is included in the plurality of trimming information, the rectangular area specified by the first trimming information is used as the trimming image. Extracting means for extracting from the image data;
Output means for scaling the cropped image to the size of the display area and outputting it to the display device;
An image reproducing apparatus comprising:   When the first trimming information is not included in the plurality of trimming information, a trimmed image having the same aspect ratio as the display area is selected from the image data based on any one of the plurality of trimming information. The image reproducing apparatus according to claim 4, further comprising second extracting means for extracting.   The second extraction unit extracts the area having the same aspect ratio as the display area from an area including a rectangular area specified by any one of the plurality of trimming information, thereby obtaining the trimmed image. The image reproducing apparatus according to claim 5, wherein the image is extracted from the image data. An acquisition step of acquiring image data having trimming information for specifying a rectangular area in the image data;
An extraction step of extracting from the image data a trimmed image having the same aspect ratio as the display area of the display device based on the trimming information;
An output step of scaling the trimmed image to the size of the display area and outputting it to the display device;
An image reproduction method comprising: An acquisition step of acquiring image data having a plurality of trimming information for specifying rectangular regions each having a different aspect ratio in the image data;
When the first trimming information specifying a rectangular area having the same aspect ratio as the display area of the display device is included in the plurality of trimming information, the rectangular area specified by the first trimming information is used as the trimming image. An extraction process for extracting from the image data;
An output step of scaling the trimmed image to the size of the display area and outputting it to the display device;
An image reproduction method comprising:   A program for causing a computer to execute the image reproduction method according to claim 7 or 8.   A computer-readable storage medium storing the program according to claim 9.

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