JP2010026614A - Slide show reproduction method, program, slide show reproduction device, and camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide show reproduction method, a program, a slide show reproduction device and a camera for displaying an image giving different impressions to one screen at once in reproducing a slide show. <P>SOLUTION: A slide show reproduction method to be performed by a processing part configured of a CPU 105 or the like includes: featured value calculation processing for extracting image data from a storage part such as a memory card 110, and for calculating the featured value of the image data; class-sorting processing for sorting image data into prescribed classes based on the featured value calculated in this way; reproduction image data instruction processing for generating reproduction image data in which two or more image data among the image data are arranged so that the inter-class distance of the adjacent image data can be separated by a prescribed value or more and reproduction processing for making a slide show display part 134 display reproduction image data as a slide show. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a slide show playback method, a program, a slide show playback device, and a camera having the slide show playback device.

  Conventionally, a digital image taken with a digital camera or the like is recorded and stored, and the stored digital image is displayed on a liquid crystal display unit such as a digital camera or a display device such as a TV monitor or a personal computer screen. ing. Such usage of displaying a digital image is realized in a form generally called “slide show”. In such a slide show, as a method for arbitrarily selecting and displaying an image from digital images recorded and stored, characteristics of the image from the captured digital image, such as color tone, brightness, shooting time, face image, etc. , And the amount of the set feature is calculated with respect to the image, and the calculated amount is used as a feature amount of the image, and digital images having similar feature amounts are grouped and displayed. A method has been proposed.

As a method of grouping, for example, image data feature amounts are calculated by performing clustering using a crisp technique or a fuzzy technique, and as a result, an image having a feature quantity highly relevant to image data located near the center. A method for displaying and outputting data, a method for selecting an image to be displayed by generating a group based on the feature amount based on the shooting date and recording conditions, event information included in the image, and pre-classified attribute and feature amount extraction Are used for grouping and selection of images to be printed. In addition, face images are extracted from image data to be played back as a slideshow, and grouped into high similarity based on the face images. Alternatively, the face images in each group are counted, and the face image with the largest proportion of the face area is used as the main image. Selected, for the other image, and evaluated in the same manner, there is a method of generating a display screen to form a hierarchy (e.g., see Patent Document 1).
JP 2001-256244 A

  However, in the conventional slide show display method, various feature amounts are calculated and grouped according to adjacent feature amounts. Therefore, when such grouped images are displayed on the screen, one feature amount is displayed. A similar image is arranged on the screen. For this reason, there is a problem that only an image with a weak impression given to the viewer can be displayed, and the visibility of the viewer is low.

  The present invention has been made in view of such problems. When a digital image is output to a display device and a slide show is reproduced, images that give different impressions on one screen are displayed at a time. An object of the present invention is to provide a slide show playback method, a program, a slide show playback device, and a camera having the slide show playback device capable of obtaining visibility.

  In order to solve the above-described problems, a slide show reproduction method according to the present invention is executed by a computer having a processing unit and having access to a storage unit in which at least two or more image data is stored, and images by a plurality of image data are obtained. A slide show reproduction method for displaying a slide show composed of the image data on a displayable slide show display unit, wherein the processing unit extracts image data from the storage unit and calculates a feature amount of the image data. A class classification process for classifying image data into a predetermined class based on the feature amount calculated in this way, and two or more pieces of image data of image data are converted into at least one side of adjacent image data. Playback image data instruction processing for generating playback image data arranged in different classes, and playback image data Having a reproduction process of displaying the slide show display unit as slide show.

  In such a slide show reproduction method, the above-described classes are arranged so as to correspond to a predetermined range of the feature amount data for each class, and the reproduction image data instruction process performs image data arranged adjacently. It is preferable that the image data belonging to the adjacent class is not selected.

  In such a slide show playback method, the playback image data instruction process generates sequence data as the playback order of the image data as playback image data, and the playback process plays back the image data as a slide show according to the sequence data. It is preferable to be configured to do so.

  A program for causing a processing device such as a computer to execute the slide show playback method according to the present invention can be created, such as a flexible disk, CD-ROM, magneto-optical disk, semiconductor memory, hard disk, etc. Stored in a storage medium or storage device. Moreover, it may be distributed as a digital signal via a network or the like. At this time, intermediate processing results are temporarily stored in a storage device such as a main memory (RAM).

  The slide show playback apparatus according to the present invention executes a user data storage unit that stores at least two or more image data, a slide show data display unit that displays a slide show, and the program described above, and is stored in the user data storage unit. And a processing device for generating a slide show from the image data being displayed and displaying the slide show on a slide show data display unit.

  Furthermore, a camera according to the present invention includes the above-described slide show reproduction device, an optical system and an image sensor that detects an image formed by the optical system, and user data is obtained by using the image detected by the image sensor as image data. An imaging unit to be stored in the storage unit.

  When the slide show playback method, the program, the slide show playback device, and the camera according to the present invention are configured as described above, the image data is classified from the feature amount data of the image data when the slide show is played back, and image data having a large distance between the classes is obtained. As playback image data, it is output adjacently when a slide show is played back, so image data that gives different impressions is displayed at a time on the playback screen of one slide show, so that the user has good visibility. Will be obtained.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, the configuration of a digital camera 100 (hereinafter referred to as a digital camera 100) having a slide show playback device according to the present embodiment will be described with reference to FIG. As shown in FIG. 1, the digital camera 100 includes an optical lens 101, an image sensor 102, an A / D converter 103, a buffer memory 104, a CPU (Central Processing Unit) 105, an operation panel 106 having operation switches 107 and a touch panel 108. , RAM (Random Access Memory) 113, ROM (Read Only Memory) 114, image signal processor 115, and the like, which are connected to each other or via a data bus 121.

  The optical lens 101 serves to form a subject image to be photographed on the image sensor 102. The optical lens 101 has an autofocus and zoom function, and is realized by moving the relative positions of the constituent lenses of the optical lens 101 by a motor 118 and an actuator 120. The sensor 117 has a function of acquiring the state of the optical lens 101, and the motor 118 drives a mechanism for moving the position of the optical lens 101. The motor / actuator driver 119 converts the control signal from the I / O controller 116 into electric power, and supplies electric power necessary for driving the motor 118 and the actuator 120. The actuator 120 is a lens actuator that moves the relative position of the constituent lenses of the optical lens 101 and drives the aperture mechanism of the optical lens 101.

  The CPU 105 is a microprocessor and controls the overall operation of the digital camera 100. The CPU 105 is configured to operate based on program codes stored in the ROM 114 and the image signal processing processor 115 and data referred to by the program codes. The RAM 113 functions to store data necessary for the operation of the CPU 105, the image signal processor 115, and the video controller 112. The ROM 114 is a storage unit that stores program codes and data necessary for the CPU 105 and the image signal processor 115 to perform predetermined operations. The image signal processing processor 115 is a processor for processing image data, has a function capable of performing various calculations necessary for processing image data at high speed, and operates under the control of the CPU 105.

  As for the operation of the motor 118 and the actuator 120 described above, a control signal from the CPU 105 is transmitted to the I / O controller 116 via the data bus 121, and further transmitted from the I / O controller 116 to the motor / actuator driver 119. By doing so, it is configured to be controlled. The image sensor 102 converts an image formed by the optical lens 101 into an electric signal, and the A / D converter 103 converts a continuous value of the electric signal output from the image sensor 102 into a discrete value. The buffer memory 104 temporarily stores data for the CPU 105 and the image signal processing processor 115 to perform image signal processing and data flow control. The I / O controller 116 controls the operation of the mechanism unit under the control of the CPU 105.

  The operation panel 106 is used by the user to input instructions necessary for various operations. An operation switch 107 is arranged on the operation panel 106. When the user operates the operation switch 107, the operation switch 107 is energized or cut off, thereby realizing a user operation input. Further, a touch panel 108 is connected to the operation panel 106, and the touch panel 108 is actually arranged on the display 109. Therefore, when the user inputs an operation according to the content displayed on the display 109, the operation input is detected by the touch panel 108. In other words, the touch panel 108 can detect the position instructed by the user and the pressure at the same time, and can detect the operation input when touched by the user. Examples of the detection method of the touch panel 108 include a method of detecting a voltage change due to a resistive film, a detection method based on image recognition, a method of detecting a magnetic field change due to electromagnetic induction, and the like in the digital camera 100 of the present embodiment. Is not limited to these detection methods.

  The display 109 is a display device. For example, the mounting position of the digital camera 100 is arranged on the back side of the digital camera 100 main body, that is, on the side opposite to the mounting side of the optical lens 101. The display 109 can display to the user information on the display of image data that the user is actually shooting and is imaged on the image sensor 102, information on the operation status of the digital camera 100, and the like. The display 109 can also display buttons and slide switches for reproducing image data stored in the memory card 110 and operating input via the touch panel 108 as images. The video displayed on the display 109 is output from the video controller 112. The video controller 112 generates an image selected on the operation panel 106 as an image to be displayed on the display 109 via the data bus 121.

  The memory card 110 is a non-volatile memory, and once image data and the like are stored, the stored image data and the like can be retained even when the power source of the digital camera 100 is turned off. It is like that. The memory card 110 is controlled when recording and reproducing image data and additional information via the storage controller 111.

  When the digital camera 100 having such a configuration is turned on, the CPU 105 reads the program code from the ROM 114 and starts executing the program code. This program code first initializes the function of each component of the digital camera 100 described above and sets a standby state in which photographing can be performed. When the setting is completed, the image data collected from the optical lens 101 and imaged on the image sensor 102 is stored in the buffer memory 104 through the A / D converter 103. The image data once stored in the buffer memory 104 is processed by the image signal processing processor 115. The processed result is stored again in the buffer memory 104 and simultaneously displayed as image data on the display 109 via the video controller 112. In this state, the user can operate using the operation switch 107 and the touch panel 108 disposed on the operation panel 106. For example, an image when the release switch is pressed is stored in the memory card 110 as a still image. It is configured as follows.

  As described above, the digital camera 100 can store image data taken by the user in the memory card 110 or the like. In the digital camera 100 according to the present embodiment, the digital camera 100 can obtain in advance as described above. Using the stored image data, a slide show is generated and played back.

  Now, a function of creating a slide show from the image data incorporated in the digital camera 100 as described above, captured by the digital camera 100 and stored in the memory card 110, and playing back the image will be described. FIG. 2 shows an internal component 122 of the digital camera 100 that includes each processing unit necessary for creating, playing back, and displaying a slide show, a storage medium (for example, the memory card 110), and a display device (display 109 or slide show playback). A relationship with an external component 129 including a monitor such as a television for displaying image data when the image data is displayed is shown.

  The internal constituent element 122 includes constituent elements of a sequence data creation unit 123, a slide show playback unit 127, and a display image data storage unit 128. The sequence data creation unit 123 further includes an image data classification unit 124, an image data alignment unit 125, and an image data layout unit 126. On the other hand, the external component 129 includes a slide show storage unit 130, an operation input unit 133, and a slide show data display unit 134. 2 is a program executed by the CPU 105 shown in FIG. 1, and processing units such as the image signal processing processor 115, ROM 114, RAM 113, video controller 112, and the like. In the following description, a case where slide show generation and playback display are implemented in the digital camera 100 will be described. However, the present invention is not limited to this configuration, and for example, a processing device such as a CPU, ROM, or RAM Needless to say, it may be mounted on a computer having a storage unit such as a hard disk.

(Data structure of sequence data)
First, a function for creating a slide show in the digital camera 100 will be described. In the present embodiment, the slide show is played back using sequence data that indicates the display order, location, and the like of the image file displayed on the screen. The slide show storage unit 130 of the external component 129 is, for example, the memory card 110 shown in FIG. 1, and the slide show storage unit 130 includes a user image storage unit 131 that stores image data taken by the user, A sequence data storage unit 132 in which the above-described sequence data is stored. The sequence data stored in the sequence data storage unit 132 is managed as a sequence data file 140 having a data structure as shown in FIG. The sequence data file 140 is composed of one screen (hereinafter referred to as “scene”) displayed for a predetermined time as one piece of data (scene data 141), and these are continuously arranged in time order. The scene data 141 includes a scene number data column 141a in which a sequential number of the scene is set, an image data column 141b in which image data displayed in this scene is stored, and trimming when displaying each image data on the screen. The cut-out position data column 141c for storing the position for the image, the image display order data column 141d for setting the display order of the above-mentioned image data in this scene, and the representative image data for storing the representative image data of this scene It consists of a column 141e. In the present embodiment, as shown in FIG. 4A, a case will be described in which five images are arranged in one scene and displayed as a composite image 135 arranged in the left-right direction.

(Image data feature data calculation processing)
The digital camera 100 according to the present embodiment is configured such that, when a slide show is played, adjacent images on the composite image 135 in one scene have different impressions. This is determined by the image data selected when setting the image data (image A data to image E data) in the image data column 141b in the data structure of the scene data 141 constituting the sequence data 140 described above. Therefore, in the present embodiment, as an example of feature amount data of each image data (image A data to image E data), a method of selecting image data having a different impression using color is described as an example. To do. Here, for example, the color is a value composed of hue h, saturation s, and brightness v in the HSV color system. From these values of hue h, saturation s, and lightness v, a representative color tone of each image data is discriminated, and this is classified as a color class for each feature value data as feature value data of this image data. A method will be described.

  First, in the present embodiment, color classes are set in advance, and for example, as shown in FIG. 5, the classes are classified into six classes including five chromatic colors and one substantially achromatic color. For example, the substantially achromatic color is the color class C0, which is classified as image data in which the values of the saturation s and the brightness v do not have a certain value or more in the values of the hue h, the saturation s, and the brightness v. Will be. That is, a case where the color of the image is felt as a whole, a case where the color is dark and the color is not clear, or a case where the color is monochrome or sepia is classified. As the five chromatic colors, red is set as the representative color for the color class C1, yellow for the color class C2, green for the color class C3, blue for the color class C4, and purple for the color class C5. Each of these colors constitutes a so-called hue circle, and each color has a continuous value in the color classes C1 to C5 and has a certain width. Here, these color classes are examples of a plurality of class classes having a predetermined range, and have a range corresponding to the feature amount data.

  The calculation process of the color class, which is the feature amount data of the image data, is executed according to the flowchart of FIG. This process may be executed promptly when the image data is acquired, or may be executed after the image group is configured, and the execution of the process ends before the slide show reproduction is executed. It is preferable because preparation time for reproduction can be shortened.

  First, the image data classification unit 124 of the sequence data creation unit 123 reads image data (target image data) to be classified from the user image storage unit 131 of the slide show source storage unit 130 (step S100). When the target image data is read, the image data classification unit 124 divides the image of the target image data into small regions by a predetermined method (step S101). Here, an example of a method for dividing the image data into small regions will be described.

  As shown in FIG. 7, concentric circles are drawn on the target image data 136 with the center point of the image data as an axis. The concentric circle is first drawn at a certain distance from the center point of the image and relatively close to the center point. Then, after determining by drawing the first circle, a second circle that is one size larger is drawn on the outer side so as to keep a certain distance from the circumference of the first circle. That is, the second circle is drawn at a certain interval in the radial direction so as to be a circle having a larger radius than the first circle. Further, outside the second circle, in order to maintain a certain distance from the circumference of the second circle, the first circle is slightly larger at a certain interval so as to have a radius larger than the second circle in the radial direction. A third circle is drawn. The process is repeated in the same manner until the concentric circle is inscribed in the outer periphery of the image. At this time, the radius difference between adjacent concentric circles is always set to be constant. That is, the radius difference between adjacent concentric circles is the radius difference between the first circle and the second circle, or the radius difference between the second circle and the third circle. The regions between the concentric circles are divided so that the angle with respect to the center of each arc is constant by dividing the concentric circles to form a small region 138 which is a sampling region.

  As is apparent from FIG. 7, a plurality of small regions 138 are formed. In the drawing of FIG. 7, in order to distinguish these, S1 (r), S2 (r), S3 (r), ... Sm (r). Further, FIG. 7 shows an example in which only the outermost concentric region is divided. However, because of the restriction of the drawing, in reality, the region between all the concentric circles is a small region 138 (S ( r)). Here, the area between the concentric circles is the area between the outer circumference of one circle and the inner circumference of the circle arranged next to the outer circle, that is, between the first circle and the second circle, or the second circle. An area between the circle and the third circle. Further, when the concentric circles are divided so that the angle with respect to the center of each arc is constant and the small region 138 is formed, between the concentric circles near the center where the area of the divided region becomes extremely small, On the contrary, it is preferable that the small regions 138 are formed so as to reduce the area difference between the small regions 138 by increasing / decreasing the number of divisions between the concentric circles near the outer periphery which becomes extremely large.

  When the target image data is divided into the small areas 138 in this way, the image data classification unit 124 next determines the color Hm from the average value h (S (r)) of the hue values for each small area 138. To do. That is, the hue value of each small area 138 is obtained, and then the average value h (S (r)) of these hue values is obtained. The average value h (S (r)) is expressed by the following equation (1). Is satisfied, the small region 138 having the average value h (S (r)) is classified as the color Hm.

(M−1) t / M ≦ h (S (r)) <mt / M (1)
Where t is the maximum hue value

  Here, as each color Hm (m = 1, 2, 3,... M), the range of hue values included in each color Hm can be expressed by the following equation (2). In this case, when the range of possible hue values x is x: 0 ≦ x <t (x, tεN), the entire hue space is equally divided into M pieces for quantization.

(M-1) t / M ≦ x <mt / M (2)

  When the color Hm of all the small areas 138 included in the target image data is determined in step S102, the process proceeds to step S103. In step S103, it is determined whether or not the saturation s (S (r)) and the lightness v (S (r)) are equal to or greater than a reference value. Specifically, the image data classification unit 124 calculates the saturation s (S (r)) and the brightness v (S (r)) for each small region 138 (S (r)) of the target image data, and both Then, it is determined whether or not the reference value is exceeded. Here, the saturation s and the lightness v are different from the hue h, and it is not necessary to perform quantization in particular. However, in order to increase accuracy, if there is no problem in performance even if the amount of calculation increases, the quantization is performed. It doesn't matter. If it is determined in step S103 that the saturation s (S (r)) and the lightness v (S (r)) are less than the reference value, the small area 138 of the target image data is set to the substantially achromatic class. Classification into C0 (step S105). On the other hand, when the saturation s (S (r)) and the lightness v (S (r)) are equal to or higher than the reference value, the small area 138 has a color class Cm (m = 1, 2) corresponding to the color Hm. , 3,... M) (step S104). Here, as described above, the color class Cm is set as five chromatic colors with M = 5 where m = 1, 2, 3, 4, 5. In this way, all the small areas 138 of the sampling target area 137 of the target image data 136 are classified into the color class Cm. Here, in the target image 136, for the areas other than the sampling target area 137, sampling is not performed when the color class Cm is determined.

  When the color class Cm is determined for all the small areas 138, weighting is performed for each small area 138 by the following equation (3).

  G (S (r)) = D (S (r)) · L (S (r)) (3)

  Here, G (S (r)) is a weight of the small region 138 and is a weight value. D (S (r)) is an area value of the small region 138, and L (S (r)) is a weighting coefficient according to the distance from the center point of the sampling region 137 where the small region 138 exists. That is, L (S (r)) is set to a large value when the region is close to the center point of the image, and to be small when the region is a concentric region near the outer periphery of the image.

  Next, a weighted histogram of each small region 138 is created for each of the color classes C0 and Cm classified in steps S104 and S105 (step S107). Then, the color class C0, Cm (m = 1, 2, 3, 4, 5) with the highest frequency on the weighted histogram is set as the color class of the target image data 136 (step S138). For example, in the target image data 136, if the color class C1 is the maximum frequency, the target image data 136 is classified as red, and information on the color class C1 is stored in the image data of the target image data 136. Further, the histogram values for the color classes C0, Cm (m = 1, 2, 3, 4, 5) determined in step S108 are set as the color level of the target image data 136 (step S109).

  Note that in steps S108 and S109 described above, the image data classification unit 124 uses the feature amount database 142 provided in the user image data storage unit 131 for the color class and color level of the target image file obtained as described above. It is comprised so that it may memorize. Here, FIG. 8 shows the data structure of the feature quantity database 142, in which an image file name field 142a for storing the file name of the target image data 136, a color class field 142b for storing a color class, and a color level are stored. And a color level field 142c.

  Finally, the process proceeds to step S110, where the target image data is classified for each color class, arranged in order of color level, and stored. That is, the image data classification unit 124 classifies the target image data for each of the color classes C0 and Cm (m = 1, 2, 3, 4, 5), and the next image data alignment unit 125 sets the image data in the order of color levels. Align. In this way, the image group classified for each color class and arranged in the order of the color level is used for display of image data when the slide show is reproduced. As a result, in the generation of sequence data 140 as slide show reproduction data described below, selection of image data arranged adjacent to one scene can be smoothly selected from a group of images that give different impressions. It becomes like this. That is, images arranged adjacent to each other during slide show reproduction are selected from image groups having different classifications of color classes C0 and Cm (m = 1, 2, 3, 4, 5). As a result, the selected image is an image having an interclass distance of a predetermined value or more.

(Create sequence data)
A process for creating sequence data for a slide show based on the above-described image data classification will be described with reference to FIG. The sequence data is created by the image data layout unit 126 of the sequence data creation unit 123. First, the user sets a designated image group (step S200). Here, the designated image group is an image group at the time of slide show reproduction, and is classified in advance according to information such as date and place and the type of image such as a person, landscape, building, plant, etc. Assume that it is stored in a folder of the user image storage unit 131 of the source storage unit 130. Then, as described above, these designated image groups are image groups in which the color classes C0 and Cm (m = 1, 2, 3, 4, 5) are classified and aligned.

  Hereinafter, processing for each scene of the slide show will be described. Here, setting of the first scene (scene 001) will be described. First, the image data layout unit 126 arbitrarily selects one image data file from the designated image group. The selection can be set by the user from the operation input unit 133 or the like, or the image data layout unit 126 can be arbitrarily selected. When the image layout unit 126 arbitrarily selects, for example, among the color classes C0 and Cm (m = 1, 2, 3, 4, 5), the color classes C0 and Cm (with the largest image data file) are used. m = 1, 2, 3, 4, 5), and the image data file having the highest color level may be selected.

  Then, the image data file selected in step S201 is arranged in any one of the five areas shown in FIG. 4A, and the information is stored in the image data area 141b of the scene data 141 corresponding to the scene 001 ( Step S202). For example, here, A to E are named from the left side of the screen, and the files are arranged in order from A. In the example shown in FIG. The jpg file is stored as image A data.

  Next, the image data layout unit 126 checks the color classes C0 and Cm (m = 1, 2, 3, 4, 5) of the image data set in step S202 (step S203). That is, the image data layout unit 126 refers to the feature database 142 described above, and confirms the information of the color class 142b stored in association with the image data arranged in step S202. Alternatively, when the image data layout unit 126 selects one image data file from the designated image group, the data of the color class Cm into which the image data file is classified may be simultaneously acquired. Then, the next image data is selected from the image data classified in the color class that is not adjacent to the data of the color classes C0 and Cm (m = 1, 2, 3, 4, 5) confirmed in the above step S203. (Step S204). For example, when the previously selected image data (0001.jpg) is the color class C1, it is not selected from the color class C2 and the color class C5, but the color class C3 and the color class C4, or The image data selected from the color class C0 is selected.

  Next, the image data selected in step S204 is arranged in an area adjacent to the area arranged in step S202, and the information is stored in the image data area 141b of the scene data 141 corresponding to the scene 001 (step S205). For example, in the case shown in FIG. A jpg file is stored as image B data. Then, the image data layout unit 126 determines whether or not an image data file has been set for all of the image A data to the image E data. If all of the image data files have not been set, the process returns to step S203 (step S206). On the other hand, when all the settings are made, the image data layout unit 126 determines the cut-out position, the image display order, and the representative image data of the image A data to the image E data on the composite screen 135, and the scene data 141. The cut-out position data column 141c, the image display order data column 141d, and the representative image data column 141e are stored (step S207). Further, the scene number of the slide show is set in the scene number data column 141a and stored in the sequence data 140 (step S208).

  When the setting of one scene is completed as described above, the image data layout unit 126 determines whether all the image data of the designated image group has been created and stored as the sequence data 141, and If the sequence data of all the image data has not been created, the process returns to step S201, and the above-described processing is repeated until all the image data is created (step S209). On the other hand, if it is determined in step S209 that all have been created, the process ends.

  In the digital camera 100 of the present embodiment, slide show reproduction is performed according to the sequence data 140 created as described above. As a result, the inter-class distance of the image data arranged at adjacent positions on the synthesis screen 135 is set to be a predetermined value or more. That is, the image data set for each of the image A data to the image E data is selected from the image data classified into the different color classes C0 and Cm (m = 1, 2, 3, 4, 5) as described above. In addition, image data arranged at adjacent positions on the synthesis screen 135 is selected from non-adjacent color classes of color classes C0 and Cm (m = 1, 2, 3, 4, 5). It has become. Therefore, the images arranged at adjacent positions on the composite screen 135 are images having different color differences and images having different impressions.

  As a result, when a slide show is reproduced, images displayed on one screen are images having different impressions from adjacent images. Therefore, the digital camera 100 of the present embodiment has high user satisfaction (high visibility). The resulting slide show playback can be performed. In the above description, an example is described in which color difference data that is a color is used as feature amount data, and classification is made into a class. However, for example, the number of people in an image, a face, The feature amount data may be calculated according to the data and the shooting time zone (for example, morning, noon, night, etc.) and classified into classes.

(Slide show playback process)
Finally, a function for reproducing and displaying a slide show based on the sequence data 140 created as described above will be described. The flow of data between functions is shown in FIG. 10, and the flow of processing is shown in FIG. In this digital camera 100, slide show playback can be activated via the touch panel 108 from the operation switch 107 or a menu screen displayed on the display 109. In this way, when the user operates the operation switch 107 or the like (see FIG. 1), the operation information is input to the operation input unit 133 (see FIG. 2), and is instructed to the slide show playback unit 127 as sequence playback control information. The start of the slide show playback function is instructed.

  When the user designates an image group to be subjected to the slide show (step S300), among the sequence data 140 corresponding to the image group, the scene data 141 corresponding to the first scene (n = 001) is stored in the sequence data storage unit 132. (Step S301). Next, the image data of the file name set in the image data column 141b of the read scene data 141 is read from the user data storage unit 131 (step S302). Here, 0001. jpg-0005. Five pieces of image data of jpg are read out.

  Further, in this scene data 141, in order to display by combining the image display order data, which is the order in which the image data is displayed on the reproduction screen, and the five pieces of image data of image A data to image E data. The cutout position data for cutting out (trimming) and displaying a part of these image A data to image E data is also managed, and the image data is selected according to the display order and cut out at the cutout position. An image is displayed (step S303). For example, when the scene data 141 has information as shown in FIG. 3, the cut-out position of the image A data is stored as (X1-X3), which can be obtained by referring to FIG. 135A is cut out in the range of the horizontal coordinates X1 to X3 and displayed at the position 135a of the image A of the composite image 135 (see FIG. 4 for the composite image). Note that the designation of the cutout position may be performed by the user or may be arbitrarily set at random. Here, the designation method is designated only by the horizontal coordinate position of the image data. However, for example, the image data may be designated by the vertical and horizontal coordinate positions, and according to the screen division when the slide show is reproduced, The image data may be divided into several parts and the divided areas may be designated.

  As described above, when the slide show reproduction unit 127 displays the image A data to the image E data according to the image display order data and determines that all the images are displayed (step S304), the composite image 135 is displayed after a predetermined time has elapsed. Is faded out from the display screen, and as shown in FIG. 6B, the representative image is faded in and displayed on the entire display screen (step S305). The representative image data is stored in the representative image data column 141e of the scene data 141. In the example shown in FIG. 3, for example, image E data 135e (0004.jpg) is set. That is, after the composite image 135 of FIG. 4A is displayed, the composite image 135 disappears once, and the image E data 135e that is the representative image of FIG. 4B is displayed on the entire display screen.

  When the representative image 305e is displayed in step S305, the slide show reproduction unit 127 determines whether or not all scenes are displayed as a slide show (step S306). That is, it is determined whether all the scene data 141 included in the sequence data 140 has been read and displayed. If it is determined in this step S306 that all scenes are not being played back as a slide show, 1 is added to the scene number (step S307), the process returns to step S302, and the next scene is played back. Until the screen is displayed, the processes in steps S302 to S307 described above are repeated. If it is determined in step S306 that all scenes have been displayed as a slide show, slide show playback ends.

  Note that the composite image 135 and the representative image 135e generated by the slide show reproduction unit 127 are temporarily stored in the display image data storage unit 128, and from there, via the slide show data display unit 134 of the external component 129, the digital camera 100. It is configured to be output to a display 109 built in the computer, an external monitor, or the like. Therefore, as described above, if the cutout position of the image data when displayed on the composite image 135 is specified, only a part of the image data for the slide show reproduction is required, so the display image data storage unit 128 Once stored, the data capacity can be reduced.

  As described above, since the slide show in the digital camera 100 is configured to be reproduced and displayed based on the sequence data 140 created by the sequence data creation unit 123 described above, it is displayed on the composite image 135 at a time. The image data to be processed is set so that adjacent data is image data that gives a different impression. That is, the feature amounts of adjacent image data are separated by a predetermined class distance or more, and a strong impression can be given to the viewer of this slide show. In addition, since the display order stored in the image display order data column 141d is randomly changed for each scene, the playback order is random for each scene when the user views the slide show playback screen. It is possible to enjoy the slide show reproduction without getting tired of which image is displayed first in the image 135 and in what order.

It is a block diagram of a digital camera having a slide show playback device according to the present embodiment. It is a block diagram which shows the structure of the slide show reproducing | regenerating apparatus concerning this embodiment, Comprising: The operation state of the production | generation process of sequence data is shown. It is a data block diagram which shows the structure of sequence data. It is explanatory drawing which shows the image of the scene displayed as a slide show, Comprising: (a) shows the example of a synthesized image at the time of slide show reproduction, (b) shows the example of the representative screen at the time of slide show reproduction. It is explanatory drawing which shows the structure of the class data in this embodiment. 5 is a flowchart for calculating feature amount data of image data. It is explanatory drawing which shows the sampling area | region for calculating the feature-value data of image data. It is a data structure figure which shows the feature-value data of image data. It is a flowchart which shows the production processing of the data for reproduction | regeneration of a slide show. It is a block diagram which shows the structure of the slide show reproduction | regeneration apparatus concerning this embodiment, Comprising: The operation | movement state of the reproduction | regeneration display process of a slide show is shown. It is a flowchart which shows a slide show reproduction | regeneration process. It is explanatory drawing explaining the method to cut out image data at the time of a slide show display.

Explanation of symbols

100 Digital camera (Slideshow playback device)
DESCRIPTION OF SYMBOLS 101 Optical lens 102 Image pick-up element 105 CPU (processing part) 110 Memory card (memory | storage part)
130 slide show source storage unit 131 user image storage unit 132 sequence data storage unit 134 slide show display unit

Claims (6)

A slide show configured by the image data on a slide show display unit, which is executed by a computer having a processing unit and capable of accessing a storage unit in which at least two or more pieces of image data are stored, and capable of displaying a plurality of images based on the image data A slide show playback method for displaying
By the processing unit,
A feature amount calculation process for extracting the image data from the storage unit and calculating a feature amount of the image data;
Class classification processing for classifying the image data into a predetermined class based on the feature amount;
Reproduction image data instruction processing for generating reproduction image data in which two or more pieces of image data among the image data are arranged so that at least one of the adjacent image data classes is different;
A reproduction process for displaying the reproduction image data as the slide show on the slide show display unit;
A slide show playback method comprising: The classes are arranged so as to correspond to a predetermined range of the feature data for each class,
The slide show playback method according to claim 1, wherein the playback image data instruction processing is configured not to select the image data arranged adjacent to the image data belonging to the adjacent class. The reproduction image data instruction process generates sequence data that is the reproduction order of the image data as the reproduction image data,
The slide show playback method according to claim 1, wherein the playback process is configured to play back the image data as the slide show according to the sequence data.   The program for making a computer perform the slide show reproduction method as described in any one of Claims 1-3. A user data storage unit for storing at least two or more image data;
A slide show data display section for displaying a slide show;
A slide show playback device, comprising: a processing device that executes the program according to claim 4, generates a slide show from the image data stored in the user data storage unit, and displays the slide show on the slide show data display unit. A slide show playback device according to claim 5;
A camera comprising: an optical system; and an imaging unit that detects an image formed by the optical system, and stores an image detected by the imaging device in the user-data storage unit as the image data.

Images