JP4744337B2 - Image playback device - Google Patents

Description

  The present invention relates to an image reproduction apparatus, and more particularly to an image reproduction apparatus that sequentially reproduces a plurality of images (slide show reproduction).

  Conventionally, as this type of apparatus, one disclosed in Patent Document 1 is known. In this conventional technique, the state of an image (for example, file size, contrast size, etc.) is determined, and the display time of the image is changed according to the determination result. As a result, slide show reproduction suitable for the state of the image is possible.

Moreover, what was disclosed by patent document 2 is also known. This prior art extracts date and time information from each image, selects music related to the extracted date and time information, and outputs the audio of the selected music during slide show reproduction. Thereby, an image and a music can be enjoyed integrally.
JP 2004-320379 A [H04N 5/93, 5/225, 5/91] JP 2004-104674 [H04N 5/91, G06F 17/30, G06K 9/00, G06T 1/00, H04N 1/387]

    However, in the prior art of Patent Document 1, it may take a long time to check the images depending on the number and state of images to be played back as a slide show.

    In the prior art of Patent Document 2, since only the music related to the shooting date and time of the image is output, the production effect is poor. Also, since the music is selected every time the shard show is played, that is, the music is not selected for each image, the relationship between the music and the music may be weak and not enjoyable.

    Therefore, a main object of the present invention is to provide an image reproducing apparatus capable of efficiently confirming an image.

  Another object of the present invention is to provide an image reproducing apparatus capable of improving entertainment.

The image reproducing device (10) according to the first aspect of the present invention comprises a specifying means (S21) for sequentially specifying a plurality of images recorded by the recording means (S13), and a reproducing means for reproducing the images specified by the specifying means (S63). ), the total number determining means for determining the total number of images designated by the designation means (S23), setting means for setting the period varies depending on the determination result of the total number discriminating means update cycle of an image to be reproduced by the playback means ( S27 to S35) , information detection means (S71) for detecting attribute information of the image designated by the designation means, and attribute information detected by the information detection means in relation to the update operation of the image reproduced by the reproduction means. First processing means (S73) for outputting the corresponding sound is provided.

  The designation unit sequentially designates a plurality of images recorded by the recording unit. The image designated by the designation means is reproduced by the reproduction means. The total number of images specified by the specifying means is determined by the total number determining means. The setting means sets the update period of the image reproduced by the reproducing means to a different period according to the determination result of the total number determining means.

  Therefore, since the images are updated at a cycle corresponding to the total number of images, the images can be confirmed efficiently.

The attribute information of the image specified by the specifying means is detected by the information detecting means. The first processing means outputs a sound corresponding to the attribute information detected by the information detecting means in association with the update operation of the image reproduced by the reproducing means.

Therefore, since the sound according to the attribute of each image is output , entertainment is enhanced.

The image reproducing device according to the invention of claim 2 is dependent on claim 1 , and the attribute information detected by the detecting means includes mode information when an image is taken. This makes it possible to estimate the situation when each image is captured.

An image reproduction apparatus according to the invention of claim 3 is dependent on claim 1 or 2, and includes a number determination means (S77) for determining the number of persons appearing in an image reproduced by the reproduction means, and an image reproduced by the reproduction means. further comprising second processing means in connection with the updating operation to perform a special effect process that corresponds to the determination result number discriminating means (S91~S99).

The number of persons appearing in the image reproduced by the reproducing means is determined by the number determining means. Second processing means, in connection with the updating operation of the image to be reproduced by the reproducing means, to perform the special effect process that corresponds to the determination result of the number determining means.

Accordingly, since the special effect processing corresponding to the number of persons appearing in the images is performed, entertainment is enhanced.

An image reproducing device according to a fourth aspect of the present invention is dependent on any one of the first to third aspects, further comprising an image sensor (14) for capturing the object scene, wherein the recording means is for the object scene captured by the image sensor. The image is recorded on the recording medium (50).

  The object scene is captured by an image sensor, and the recording unit records an image of the object scene captured by the image sensor on a recording medium.

The reproduction control program according to the invention of claim 5 is designated by a designation step (S21) for sequentially designating a plurality of images recorded on the recording medium (50) to the processor (24) of the image reproduction device (10). regeneration step (S63) for reproducing the images, the total number determination step of determining the total number of images specified by the specifying step (S23), the update cycle of an image to be reproduced by the playback step on the discrimination result of the total number determining step In relation to the setting step (S27 to S35) for setting a different period according to the information detection step (S71) for detecting the attribute information of the image designated by the designation step, and the update operation of the image reproduced by the reproduction step A first processing step (S73) for outputting a sound corresponding to the attribute information detected by the information detection step is executed.

The reproduction control method according to the invention of claim 6 is a method executed by the image reproduction device (10), and a designation step (S21) for sequentially designating a plurality of images recorded on the recording medium (50), a designation step Playback step (S63) for playing back the image specified by the step, Total number judgment step (S23) for judging the total number of images designated by the designated step, and the judgment result of the total number judgment step for the update cycle of the image played back by the playback step The setting step (S27 to S35) for setting a different period according to the information, the information detection step (S71) for detecting the attribute information of the image designated by the designation step, and the update operation of the image reproduced by the reproduction step And a first processing step (S73) for outputting a sound corresponding to the attribute information detected by the information detecting step .

  According to this invention, an image can be confirmed efficiently. In addition, entertainment can be improved.

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

  Referring to FIG. 1, a digital camera 10 of this embodiment includes an optical lens 12. The optical image of the object scene is irradiated to the image sensor 14 through the optical lens 12 and subjected to photoelectric conversion. Thereby, a charge representing the object scene, that is, a raw image signal is generated.

  When the power is turned on, the CPU 24 instructs the TG / SG 22 to repeat pre-exposure and thinning-out reading in order to execute through image processing. The TG / SG 22 gives a plurality of timing signals to the image sensor 14 in order to execute pre-exposure of the image sensor 14 and thinning-out reading of the charges obtained thereby. The raw image signal generated by the image sensor 14 is read in the order according to the raster scanning in response to the vertical synchronization signal Vsync generated at a rate of once every 1/30 seconds.

  The raw image signal output from the image sensor 14 is subjected to a series of processes of correlated double sampling, automatic gain adjustment, and A / D conversion by the CDS / AGC / AD circuit 16. The signal processing circuit 18 performs processing such as white balance adjustment, color separation, and YUV conversion on the raw image data output from the CDS / AGC / AD circuit 16 and writes the YUV format image data to the SDRAM 36 through the memory control circuit 34. .

  The video encoder 38 reads the image data stored in the SDRAM 36 through the memory control circuit 34 every 1/30 seconds, and converts the read image data into a composite video signal. As a result, a real-time moving image (through image) representing the scene is displayed on the LCD monitor 40.

  Based on the image data output from the signal processing circuit 18, the AE / AF evaluation circuit 20 creates a luminance evaluation value indicating the brightness of the object scene and a focus evaluation value indicating the degree of focus of the object field. . The created luminance evaluation value and focus evaluation value are given to the CPU 24.

  When the shutter button 28s provided in the key input device 28 is not operated, the CPU 24 executes through image AE processing. The pre-exposure time set in the TG / SG 22 is controlled based on the luminance evaluation value from the AE / AF evaluation circuit 20. As a result, the brightness of the through image is appropriately adjusted.

  When the shutter button 28s is half-pressed, the CPU 24 executes AF processing and AE processing. As a result of the AF process, the optical lens 12 is set to the in-focus position by the driver 26. As a result of the AE process, the exposure time set in the TG / SG 22 is set to an optimum value.

  The digital camera 10 is provided with a plurality of shooting modes (for example, “full auto”, “sports”, “landscape”, “fireworks”, etc.), and the AE process follows an algorithm that differs depending on the selected shooting mode. Executed.

  When the shutter button 28s is fully pressed, the CPU 24 instructs the TG / SG 22 to perform main exposure and all-pixel reading and performs JPEG compression to the JPEG codec 32 in order to execute the recording process.

  The TG / SG 22 gives a plurality of timing signals to the image sensor 14 in order to execute the main exposure of the image sensor 14 and the reading of all charges obtained thereby. The raw image signal generated by the image sensor 14 is read out in an order according to raster scanning. The raw image signal output from the image sensor 14 is converted into YUV format image data by the same processing as described above. The converted image data is written into the SDRAM 36 through the memory control circuit 34.

  The JPEG codec 32 reads out the image data stored in the SDRAM 36 through the memory control circuit 34, compresses the read image data by the JPEG method, and writes the compressed image data, that is, JPEG data into the SDRAM 36 through the memory control circuit 34. The JPEG data thus obtained is then read out by the CPU 24 and recorded on the recording medium 50 in a file format via the I / F 48. An identifier (described later) identifying the currently selected shooting mode is attached to the recorded JPEG data.

  When the playback mode is selected by the key input device 28, playback processing of a desired JPEG file is executed. The CPU 24 accesses the recording medium 50 through the I / F 48 and reads JPEG data stored in a desired JPEG file. The read JPEG data is written into the SDRAM 36 through the memory control circuit 34.

  The JPEG codec 32 reads JPEG data from the SDRAM 36 through the memory control circuit 34, decompresses the read JPEG data, and writes the decompressed image data into the SDRAM 36 through the memory control circuit 34.

  The video encoder 38 reads the image data stored in the SDRAM 36 through the memory control circuit 34, converts the read image data into an NTSC composite video signal, and outputs the converted composite video signal to the LCD monitor 40. To do. As a result, the reproduced image is displayed on the monitor screen.

  When an update operation is performed by the key input device 28, a reproduction process is executed for another JPEG file. As a result, the reproduced image displayed on the monitor screen is updated with another reproduced image.

  When the slide show mode is selected by the key input device 28, a slide show reproduction process for a plurality of JPEG files is executed. The mode selection operation is performed using a menu screen (not shown) displayed on the LCD monitor 40. The menu screen is generated by the character generator 44.

  Hereinafter, the slide show reproduction process will be described. In the slide show reproduction process, first, the CPU 24 selects a reproduction target file according to the selection operation by the key input device 28, and generates a target file list 30L as shown in FIG. In the target file list 30L, n (n is an integer of 2 or more) JPEG files are registered, and numbers 1 to n are assigned to the n registered JPEG files, respectively.

  Next, the CPU 24 determines the update cycle T based on the number of files n. Specifically, if the number of files n is less than 50, the update cycle T is 5 seconds, if the update cycle n is 50 or more and less than 100, the update cycle T is 4 seconds, and the number of files n is 100 or more. For example, the update cycle T is 3 seconds.

  Next, the reproduction process of the JPEG file number 1 is executed. As a result, the reproduced image of the JPEG file number 1 is displayed on the monitor screen. Thereafter, when a time equal to the update period T has elapsed, the reproduction processing of the JPEG file of number 2 is executed. As a result, the reproduced image displayed on the monitor screen is updated with the reproduced image of the JPEG file number 2. Thereafter, the same processing is repeated until the target number reaches n.

  As a result, reproduced images of n JPEG files are sequentially displayed. Since the display image update period T is determined based on the number of files n, the images can be efficiently confirmed.

  Further, in relation to the display image update operation, the CPU 24 performs a special sound effect process that produces a sound effect corresponding to the shooting mode of each image and differs depending on the number of persons appearing in each image.

  Specifically, the flash memory 30 holds a table 30T as shown in FIG. The table 30T includes a plurality of shooting mode identifiers (for example, “full auto”, “sports”, “landscape”, “fireworks”, etc.) for identifying a plurality of shooting modes prepared in the digital camera 10, and the plurality of these shooting modes. A plurality of sound effect identifiers (for example, “fulllato.wav”, “sports.wav”, “landscape.wav”, “fireworks.wav”, etc.) corresponding to the shooting mode identifiers are registered. Note that actual data corresponding to the plurality of sound effect identifiers is also stored in the flash memory 30. As the sound effect, a sound suitable for the shooting mode is selected.

  To give a specific example, a shutter sound of a single-lens reflex camera is assigned to “fulllato.wav”, a cheer at a stadium is assigned to “sports.wav”, and a river buzzing sound is assigned to “landscape.wav”. , And “fireworks.wav” is assigned a fireworks sound.

  In addition to the above sound effects, “default.wav” is further registered as a default in the table 30T. For example, a sound that plays a harp is assigned to “default.wav”.

  On the other hand, each of the n JPEG files includes one of the plurality of shooting mode identifiers, and the CPU 24 extracts the shooting mode identifier from the JPEG file to be played back, and corresponds to the extracted shooting mode identifier. The sound effect identifier to be searched is searched from the table 30T, and the sound effect corresponding to the search result is output through the sound generator 44.

  Thereby, since the sound effect according to the imaging mode of each image is output, amusement is enhanced. Also, the shooting mode of each image can be intuitively and accurately identified by the difference in the output sound effect.

  The flash memory 30 further stores a dictionary describing the feature amount of the face image, and the CPU 24 further executes a face detection process for detecting the face image from the reproduced image.

  The face detection process follows, for example, the following procedure. First, a face discrimination area is arranged at the upper left of a memory area (area 36a or area 36b formed in the SDRAM 36) in which a reproduction image is stored, and the feature quantity of the partial image belonging to the face discrimination area is compared with the feature quantity of the dictionary. To do. If the target partial image is not determined as a face image as a result of the collation processing, the face determination area is moved in the raster direction by a predetermined amount (= 1 pixel). When the partial image to be noticed is determined to be a face image, face information describing the current position of the face determination area is created, and then the face determination area is similarly moved. By repeating such processing until the face discrimination area reaches the lower right of the memory area, face information describing the positions of all the faces included in the reproduced image can be obtained.

  The CPU 24 determines the number of persons appearing in the reproduced image based on the face information thus obtained, and executes video special effect processing corresponding to the determination result. Specifically, if the number of persons is less than 5, a checker process is executed, whereby the display image is updated in the manner shown in FIG. If the number of persons is 5 or more and less than 10, a wiping process is executed, whereby the display image is updated in the manner shown in FIG. If the number of persons is 10 or more, fade processing is executed, and the display image is updated in the manner shown in FIG.

  In this way, entertainment is improved by executing the video special effect processing that varies depending on the number of persons appearing in the display image. In addition, since the video special effect accompanied by fine screen division is added as the number of people appearing is small, the visibility is improved.

  The CPU 24 executes the shooting task shown in FIG. 4 in the shooting mode, and executes the slide show task shown in FIGS. 5 to 7 in the slide show mode. The control program corresponding to these flowcharts is stored in the flash memory 30.

  First, referring to FIG. 4, through image processing is executed in step S1. As a result, the through image is displayed on the LCD monitor 40. In step S3, it is determined whether or not the shutter button 46s is in a half-pressed state. If “NO” here, the through image AE process is executed in a step S5, and then the process returns to the step S3. The brightness of the through image is appropriately adjusted by the process of step S5. If “YES” in the step S3, the recording AF process and the recording AE process are executed in the step S7 and the step S9, respectively, and then the process proceeds to the process of the step S11.

  In step S11, it is determined whether or not the shutter button 28s is fully pressed. If YES here, the process proceeds to step S13 to execute a recording process. By the processing in step S13, JPEG data representing the object scene image at the time when the shutter button 28s is operated is recorded on the recording medium 50 in a file format. The recorded JPEG file includes shooting information including a shooting mode identifier. After the recording process, the process returns to step S1.

  Referring to FIG. 5, in step S21, target file list 30L (see FIG. 2) is created. Specifically, a plurality of files are selected from the JPEG files recorded on the recording medium 50 according to the operation of the key input device 28. The selected JPEG files are assigned numbers 1, 2,... And then registered in the flash memory 30 in a list format.

  In step S23, the number of JPEG files registered in the target file list 30L is calculated. Note that the number of files matches the last number assigned in step S21. In step S25, the calculated number of files is set to a variable n, and in steps S27 to S35, an update cycle (T) is determined based on the variable n.

  In step S27, it is determined whether or not the variable n is less than 50. In step S29, it is determined whether or not the variable n is 50 or more and less than 100. If NO in each of steps S27 and S29, that is, if variable n is 100 or more, “3” is set to variable T in step S35. If “YES” in the step S27, “5” is set to the variable T in a step S31, and if “YES” in the step S29, “4” is set to the variable T in a step S33.

  After the update cycle (T) is determined in this way, slide show reproduction processing is executed in steps S37 to S45. That is, first, “0” is set to the variable i in step S37, and the variable i is incremented in the subsequent step S39. In step S41, it is determined whether or not the variable i exceeds the variable n. If NO here, the JPEG file of number i is reproduced in step S43 (described later). Then, the process proceeds to step S45.

  In step S45, it is determined whether or not a time equal to the variable T has elapsed since the reproduction start of the JPEG file of number i. If “YES” here, the process returns to the step S39. Thereby, the variable i is incremented, and the display image is updated by the reproduced image of the next JPEG file.

  When the reproduction of the last JPEG file is completed, “YES” is determined in the step S41, and the process returns to the step S3.

  The file “i” reproduction process in step S43 follows the subroutine of FIG. Referring to FIG. 6, in step S61, “0” is set to variable m. In step S63, the file “i” is reproduced. The file “i” reproduced image is held in one of the two regions 36 a and 36 b formed in the SDRAM 36. In the other of the two areas 36a and 36b, the previous reproduction image, that is, the file “i-1” reproduction image is held. Thus, the reproduction image is written alternately in the areas 36a and 36b.

  In step S65, video special effect processing corresponding to the variable m is executed. This process follows the subroutine of FIG. Referring to FIG. 7, it is determined whether or not variable m is less than 5 in step S91, and whether or not variable m is 5 or more and less than 10 is determined in step S93. If “YES” in the step S91, the process shifts to a step S95 to execute a checker process for the file “i−1” reproduced image and the file “i” reproduced image. As a result, the display image is updated in the manner shown in FIG.

  If “YES” in the step S93, a wipe process is executed in a step S97, and the display image is updated as shown in FIG. If NO in each of steps S91 and S93, that is, if variable m is 10 or more, fade processing is executed in step S99, and the display image is updated as shown in FIG. After execution, return to the upper layer routine.

  Returning to FIG. 6, in step S <b> 67, it is determined whether or not the file “i” includes a shooting mode identifier. If “NO” here, the sound generator 44 is instructed to reproduce the default sound effect, that is, “default.wav” in a step S69, and the process proceeds to a step S75.

  If “YES” in the step S67, the process proceeds to the step S75 through the processes of the steps S71 and S73. In step S71, the shooting mode identifier is acquired from the file “i”. In step S73, a sound effect identifier corresponding to the acquired shooting mode identifier is specified based on the table 30T (see FIG. 3), and the sound generator 44 is instructed to output a sound effect corresponding to the specified identifier. As a result, a sound effect corresponding to the reproduction image shooting mode is output from the speaker 46.

  For example, a shutter sound is output when an image is captured and displayed in the full auto mode, and a cheer of the audience is output when an image captured in the sports mode is displayed. In addition, when an image without a shooting mode identifier is displayed, or when the corresponding identifier is not registered in the table 30T even if it is attached, a sound of playing a harp is output.

  In step S75, face detection processing is executed for the file “i” reproduced image. In step S77, the number of persons appearing in the reproduction image of the file “i” is calculated based on the face information obtained by the face detection process. In step S79, the calculation result is set to a variable m. After setting, return to the upper layer routine.

  In this way, playback images of n JPEG files are sequentially displayed in a cycle corresponding to the number of files n. When the image is updated, video special effect processing corresponding to the number of persons appearing in the reproduced image is executed, and a sound effect corresponding to the shooting mode of the reproduced image is output.

  The sound special effect process corresponding to the attribute of the reproduction image may be executed without being limited to the output of the sound effect corresponding to the reproduction image shooting mode. Attributes other than the shooting mode include, for example, image size, image quality, white balance, exposure time, shutter speed, presence / absence of flash lighting, and the like. If Exif (Exchangeable Image File Format) is adopted as the file format, attribute information describing this type of attribute is included in the file, and this can be referred to. As the sound special effect processing other than the sound effect output, for example, there is a processing of reading out the attribute information by electronic sound.

  Also, the video special effect process corresponding to the attribute information may be executed. Such processing includes processing for inserting characters (characters, symbols, graphics, etc.) corresponding to attribute information into the screen, processing for changing screen brightness, hue, size, etc. according to the attribute information.

  As is apparent from the above, in this embodiment, the CPU 24 sequentially designates a plurality of images recorded on the recording medium 50 (S21) and reproduces the designated images (S63). In the sequential reproduction (slide show reproduction) of such a plurality of images, the CPU 24 detects the number of designated images (S23), and sets the update period of the reproduced image to a different period depending on the detection result. (S27 to S35). Therefore, since the images are updated at a cycle corresponding to the total number of images, the images can be confirmed efficiently.

  Further, the CPU 24 detects attribute information of the designated image (S71), and executes sound special effect processing corresponding to the detected attribute information in association with the update operation of the reproduced image (S73). Therefore, a special effect corresponding to the attribute of each image is applied to the sound of each image, so that entertainment is enhanced.

  Further, the CPU 24 determines the total number of persons appearing in the reproduced image (S77), and executes video special effect processing corresponding to the determination result in relation to the update operation of the reproduced image (S91 to S99). . Therefore, a special effect corresponding to the total number of persons appearing in each image is applied to each image, so that entertainment is enhanced.

  Although the description has been given above using the digital camera 10, the present invention can be applied to an image reproducing apparatus that sequentially reproduces a plurality of images (slide show reproduction).

It is a block diagram which shows one Example of this invention. It is an illustration figure which shows an example of the object file list applied to the FIG. 1 Example. It is an illustration figure which shows an example of the table applied to FIG. 1 Example. It is a flowchart which shows a part of CPU operation | movement applied to FIG. 1 Example. It is a flowchart which shows a part of other CPU operation | movement applied to FIG. 1 Example. It is a flowchart which shows a part of other CPU operation | movement applied to FIG. 1 Example. FIG. 12 is a flowchart showing yet another portion of the CPU operation applied to the embodiment in FIG. 1. (A) is an illustration figure which shows an example of the image special effect process applied to FIG. 1 Example, (B) is an illustration figure which shows another example of the image special effect process applied to FIG. 1 Example. FIG. 8C is an illustrative view showing another example of the video special effect processing applied to the embodiment in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Digital camera 14 ... Image sensor 18 ... Signal processing circuit 24 ... CPU
28 ... Key input device 30 ... Flash memory 36 ... SDRAM
40 ... LCD monitor 44 ... Sound generator 46 ... Speaker

Claims (6)

Designation means for sequentially designating a plurality of images recorded by the recording means;
Reproduction means for reproducing the image designated by the designation means;
Total number discriminating means for discriminating the total number of images designated by the designation means;
Setting means for setting an update period of an image reproduced by the reproducing means to a different period according to a determination result of the total number determining means ;
Information detecting means for detecting attribute information of the image specified by the specifying means; and
An image reproduction apparatus comprising: a first processing unit that outputs a sound corresponding to attribute information detected by the information detection unit in association with an update operation of an image reproduced by the reproduction unit. Attribute information detected by said detecting means includes a mode information upon shooting the image, the image reproducing apparatus according to claim 1. The number determining means for determining the number of persons appearing in the reproduced image by the reproducing means, and the connection with the updating operation of the image to be reproduced by the reproducing means that corresponds to the determination result of the number discriminating means special effect further comprising a second processing means for executing processing, an image reproducing apparatus according to claim 1 or 2 wherein. It is further equipped with an image sensor that captures the scene,
Said recording means is the recording on a recording medium an image of the scene captured by the image sensor, the image reproducing apparatus according to any one of claims 1 to 3. In the processor of the image playback device,
A designation step for sequentially designating a plurality of images recorded on a recording medium;
A reproduction step of reproducing the image designated by the designation step;
A total number determining step for determining the total number of images specified in the specifying step;
A setting step for setting an update period of the image reproduced by the reproduction step to a different period according to a determination result of the total number determination step ;
An information detecting step of detecting attribute information of the image specified by the specifying step; and
A reproduction control program for executing a first processing step for outputting a sound corresponding to attribute information detected by the information detection step in association with an update operation of an image reproduced by the reproduction step . A method executed by an image playback device, comprising:
A designation step for sequentially designating a plurality of images recorded on a recording medium;
A reproduction step of reproducing the image designated by the designation step;
A total number determining step for determining the total number of images specified in the specifying step;
A setting step for setting an update period of the image reproduced by the reproduction step to a different period according to a determination result of the total number determination step;
An information detecting step of detecting attribute information of the image specified by the specifying step; and
A reproduction control method comprising a first processing step of outputting a sound corresponding to attribute information detected by the information detection step in association with an update operation of an image reproduced by the reproduction step .

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