JP2010016540A - Image display, and control program for controlling image display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently search specified image files from image files stored in a storage means even if the storage means stores an arbitrary number of image files. <P>SOLUTION: When a user holds a right or left arrow key down, a selection means selects image files with jumping over index number IndexNo. for every prespecified jumping number corresponding to the number of file information arranged in a file list FL, so that images are displayed on a display part with jumping over a plurality of image files stored in a memory card for every jumping number. Thereby, the jumping number is prespecified corresponding to the number of image files stored in the memory card, so that images are displayed on the display part with jumping over image files by an appropriate number when the user holds the right or left arrow key down. Even if the memory card stores an arbitrary number of image files, specified image files are efficiently searched from the image files stored in the memory card. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for displaying an image on a screen display device.

  Conventionally, a specific image is searched by sequentially displaying images based on a plurality of image files stored in a storage medium such as a memory card, a USB memory, or an optical disk on a liquid crystal display (LCD), and the searched specific image is displayed. There are known a photo viewer displayed on a liquid crystal display unit, a stand-alone printer that selects a specific image that has been searched and prints it on a printing paper. In recent years, with the increase in capacity of storage media, a large amount of image files can be stored in the storage media. Therefore, it is not efficient to search for a specific image while sequentially displaying a large number of images on the liquid crystal display unit, and there is a problem that it takes a very long time to search for a specific image. Therefore, for example, when the user performs a special operation such as pressing an image feed button operated by the user for a predetermined time or longer when images based on the image file stored in the storage medium are sequentially displayed on the liquid crystal display unit. Proposal was made to improve the searchability of images by switching the image feed amount when images are displayed in sequence on the liquid crystal display and displaying images on the liquid crystal display while skipping image files. (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 5-22689 (paragraphs 0008 to 0009, 0015 to 0018, FIGS. 1 and 2, abstract, etc.)

  By the way, although the number of image files that can be stored in the storage unit increases with an increase in the storage capacity of the storage unit (storage medium), the user saves a large number of image files in the storage unit that has actually increased in capacity. Whether it is unknown. Therefore, as described above, if the image feed amount is always switched to a constant value when a special operation is performed, the image stored in the storage unit is stored when a small amount of image file is stored in the storage unit. There is a possibility that an image is displayed on the display means (liquid crystal display unit) while skipping a file wastefully, and there has been a demand for improvement in technology.

  The present invention has been made in view of the above problems, and can efficiently search for a specific image file from the image file stored in the storage means, regardless of how many image files are stored in the storage means. The purpose is to provide.

  In order to achieve the above object, an image display device according to the present invention is an image display device that displays an image based on an image file stored in a storage unit in response to an image search operation of an operation unit by a user. A reading unit that reads a unique file name for each of a plurality of stored image files, an index number is sequentially assigned to each of the file names read by the reading unit, and the assigned index number and the corresponding index number File list creation means for creating a file list in which file information including the file name is arranged in the order of index numbers for each of the image files, and file list storage means for storing the file list created by the file list creation means And the operation by the user Selection means for sequentially selecting an index number from the file list at the time of the image search operation, and display means for displaying an image based on the image file corresponding to the index number selected by the selection means, The selecting means skips an index number for each predetermined value determined in advance according to the number of the file information arranged in the file list when the user performs a specific image search operation of the operation unit. It is said.

  The image display device control program according to the present invention is an image display device control program for displaying an image based on an image file stored in a storage unit in response to an image search operation of the operation unit by a user. A function for reading a unique file name to each of a plurality of image files stored in the storage means, a sequential assignment of an index number to each of the file names read by the reading means, and an assigned index number, A file list creation function for creating a file list in which file information including the file name corresponding to an index number is arranged in the order of the index number for each image file, and a file list created by the file list creation function as a file List storage means A selection function for sequentially selecting an index number from the file list, and an image based on the image file corresponding to the index number selected by the selection function. A display function for displaying on the display means, and the selection function is provided for each predetermined value determined in advance according to the number of the file information arranged in the file list when a specific image search operation of the operation unit by the user is performed. It is characterized by functioning to skip over the index number.

  In the invention configured as described above, when the image search operation of the operation unit by the user is performed, the selection unit sequentially selects the index number from the file list, and the display unit selects the image file corresponding to the index number selected by the selection unit. Displays an image based on. When the user performs a specific image search operation of the operation unit by the user, the selection unit skips the index number for each predetermined value according to the number of file information arranged in the file list. The image is displayed on the display means while skipping a plurality of stored image files every predetermined value. In other words, since a predetermined value is determined in advance according to the number of file information, that is, the number of image files stored in the storage means, an appropriate number of image files are skipped when the user performs a specific image search operation. The image is displayed on the display means. Therefore, no matter how many image files are stored in the storage means, a specific image file can be efficiently searched from the image files stored in the storage means.

  For example, the user can search for a specific image file from the image files in the storage unit by sequentially displaying the images based on the image file in the storage unit on the display unit by the image search operation of the operation unit. When the number of image files stored in the means is small, the predetermined value is set to a small value in advance, so that the user can skip the image file in the storage means by a predetermined value determined by the specific image search operation of the operation unit. An image can be displayed on the display means. Therefore, when the number of image files stored in the storage unit is small, the image can be displayed on the display unit without wastefully skipping the image file. Therefore, the searchability for searching for a specific image file from the image file in the storage unit is possible. Will not be damaged. In addition, when the number of image files stored in the storage unit is large, a predetermined value is set to be large in advance, so that the user can select an image file in the storage unit by a predetermined predetermined value by a specific image search operation of the operation unit. The image can be displayed on the display means while skipping. Therefore, when the number of image files stored in the storage unit is large, the image can be displayed on the display unit while greatly skipping the image file, so that the searchability of a specific image file from the image file stored in the storage unit can be improved. Can be improved.

  The file information further includes information on the generation date of the image file read by the reading unit, and the file list creation unit assigns an index number to each of the file names in the order of the generation date. A list may be created. With such a configuration, by arranging the file information in the file list in the order of the generation date of the image file, the images are displayed on the display means in the order of the generation date of the image file. Accordingly, since the user can intuitively know the order of arrangement of the file information in the file list, the user can efficiently search for a specific image file from the image files in the storage means.

  In addition, when the specific image search operation is performed when there is a different generation date of each image file in which the file information is arranged in the file list, the selection unit selects an index number in ascending order from small to large. When the generation date of the image file corresponding to the selected index number is different from the generation date of the image file corresponding to the index number obtained by adding the predetermined value to the index number, The predetermined value may be changed so as to select the index number next to the largest index number among the index numbers of the image file having the same generation date as the image file corresponding to the selected index number. .

  In addition, when the specific image search operation is performed when there is a different generation date of each image file in which the file information is arranged in the file list, the selection unit selects the index numbers in descending order from large to small. When the generation date of the image file corresponding to the currently selected index number is different from the generation date of the image file corresponding to the index number obtained by subtracting the predetermined value from the index number, The predetermined value may be changed so as to select the index number next to the smallest index number among the index numbers of the image file having the same generation date as the image file corresponding to the selected index number. .

  With such a configuration, when the generation date of the image file corresponding to the selected index number is different from the generation date of the image file corresponding to the index number selected by the selection unit, the selection unit The next index number is selected as follows. That is, if the selection unit selects the index numbers in ascending order from small to large, the selection unit selects the most index number of the image file having the same generation date as the image file corresponding to the selected index number. Select the next index number after the larger index number. In addition, if the selection unit selects the index numbers in descending order from large to small, the selection unit selects the most index number of the image file having the same generation date as the image file corresponding to the selected index number. Select the next index number after the smaller index number. Therefore, since the selection unit does not select the index number so as to greatly jump over the generation date of the image file, the user can select a specific image file among the image files having the same generation date. It can be easily realized by the operation.

  Further, based on the generation date information in the file list corresponding to all index numbers larger than the index number being selected by the selection means, it was generated on a date different from the generation date corresponding to the index number being selected The image processing apparatus may further include a determination unit that determines whether the file information of the image file is in the file list.

  Further, based on the generation date information in the file list corresponding to all index numbers smaller than the index number being selected by the selection means, it was generated on a date different from the generation date corresponding to the index number being selected The image processing apparatus may further include a determination unit that determines whether the file information of the image file is in the file list.

  With this configuration, if the selection unit selects the index numbers in ascending order from small to large, the determination unit corresponds to all index numbers that are larger than the index number being selected by the selection unit. Based on the creation date information in the file list, it is determined whether the file list contains file information of an image file created on a date different from the creation date corresponding to the selected index number. Further, if the selection means selects the index numbers in descending order from large to small, the determination means determines the generation date in the file list corresponding to all index numbers smaller than the index number being selected by the selection means. Based on the information, it is determined whether or not file information of an image file generated on a date different from the generation date corresponding to the selected index number is in the file list. Therefore, it is easy to determine whether or not there is an image file generation date corresponding to the index number selected after the selected index number by the selection means that is different from the image file generation date corresponding to the selected index number. Can be judged.

  Further, when the file list is created by the file list creation means, based on the creation date information of each image file, generation date storage means for storing in advance the number of generation dates of all the image files, and the image The number of times that the generation date of the image file corresponding to the index number selected by the selection means is different from the generation date of the image file corresponding to the index number selected immediately before the search operation and the specific image search operation The counting means for counting the count, the count number counted by the counting means and the number of generation days stored in advance by the generation day storage means, and the number of generation days stored is the count number Is larger than the generation date corresponding to the index number selected by the selection means. The file information may be further provided constituting the determination means to be in the file list of the image files.

  With such a configuration, the determination unit compares the count number counted by the counting unit with the generation day number stored in advance by the generation day storage unit, and the stored generation day number is counted. If it is larger, it can be easily determined that the file list contains the file information of the image file generated on a date different from the generation date corresponding to the index number selected by the selection means.

  In order to achieve the above object, an image display device according to the present invention is an image display device that displays an image based on an image file stored in a storage unit in response to an image search operation of an operation unit by a user. Reading means for reading a unique file name for each of the plurality of image files stored in the means, and file information including the file names read by the reading means are arranged in an arbitrary arrangement order for each of the image files. A file list creation unit for creating a file list, a file list storage unit for storing the file list created by the file list creation unit, and the file list from the file list when the user performs the image search operation of the operation unit Selection means for selecting file names in the arrangement order; and the selection means Display means for displaying an image based on the image file corresponding to the selected file name, and the selection means is arranged in the file list when a specific image search operation of the operation unit by a user is performed. It is characterized in that the file name is skipped and selected for each predetermined value determined according to the number of file information.

  In the invention configured as described above, when the user performs an image search operation on the operation unit, the selection unit selects file names from the file list in order, and the display unit selects an image corresponding to the file name selected by the selection unit. Display an image based on a file. When the user performs a specific image search operation of the operation unit by the user, the selection unit skips the file name for each predetermined value according to the number of file information arranged in the file list. The image is displayed on the display means while skipping a plurality of stored image files every predetermined value. In other words, since a predetermined value is determined in advance according to the number of file information, that is, the number of image files stored in the storage means, an appropriate number of image files are skipped when the user performs a specific image search operation. The image is displayed on the display means. Therefore, no matter how many image files are stored in the storage means, a specific image file can be efficiently searched from the image files stored in the storage means.

  FIG. 1 is a perspective view showing a photo printer 10 which is an embodiment of the image display apparatus of the present invention. FIG. 2 is a diagram showing an outline of the internal configuration of the photo printer 10. In this photo printer 10, a printing mechanism 50 (see FIG. 2) is built in the printer main body 12, and in response to an operation command from a controller 70 (see FIG. 2) that controls the entire photo printer 10. Printing on the paper P is executed. Then, the printed paper is discharged to the front surface of the printer main body 12.

  As shown in FIG. 1, a front door 14 is attached to the front surface of the printer main body 12 so as to be freely opened and closed. The front door 14 is a lid for opening and closing the front surface of the printer main body 12. In the open state, it functions as a paper discharge tray for receiving the paper P discharged from the print mechanism 50. In addition, various memory card slots 16 provided on the front surface of the printer main body 12 can be used by the user. That is, in this state, the user can insert the memory card M storing the image file to be printed into the memory card slot 16. For example, an optical disc drive (ODD: Optical Disc Drive) is provided in the base portion of the printer main body 12, and a music CD (Compact Disc) or video DVD (Digital Versatile Disc: Digital Versatile Disc) other than a memory card as a recording medium. It is good also as a structure which can use disks, such as a disk. A plurality of image files photographed by a photographing device such as a digital camera are stored in the memory card M or the disc. As described above, in the present embodiment, the recording medium such as the memory card M and the disk is configured as the “storage unit” of the present invention.

  An operation panel 20 is provided on the upper surface of the printer main body 12, and a cover 30 is attached to an inner side of the upper surface of the printer main body 12 so as to be freely opened and closed. The cover 30 is a resin plate molded to a size that can cover the upper surface of the printer main body 12, and exposes the surface of the operation panel 20 to the outside in the open state (see FIG. 1). On the other hand, when the cover 30 is closed, the entire operation panel 20 is covered.

  The operation panel 20 includes a display unit 22 that displays characters, graphics, symbols, and the like, and a button group 24 arranged around the display unit 22. As shown in FIG. 2, the button group 24 includes a power button 24a for turning on / off the power, a menu button 24b for calling the main menu screen, canceling the operation in the middle, and interrupting the printing on the paper P in the middle. A cancel button 24c for printing, a print button 24d for instructing execution of printing on the paper P, a save button 24e for saving an edited image in the memory card M inserted in the memory card slot 16, a display unit Each of the up / down / left / right arrow buttons 24f to 24i operated when selecting a desired option from the plurality of options displayed on the screen 22 or moving the cursor, and the up / down / left / right arrow buttons 24f to 24i. An OK button for instructing that the option selected by the arrow buttons 24f to 24i arranged in the center is selected. 24j, a display switching button 24k for switching the screen display on the display unit 22, a left guide selection button 24l for selecting the left guide displayed on the display unit 22, and a right for selecting the right guide displayed on the display unit 22. It includes a guide selection button 24m, a paper discharge tray open button 24n for opening the front door 14 having a function as a paper discharge tray, and the like. As will be described later, each of the arrow buttons 24f to 24i is configured as an “operation unit” of the present invention.

  Further, in order to confirm the display content of the display unit 22, the cover 30 is provided with a window 32 having the same size as the display unit 22. That is, when the cover 30 is in the closed state, the user can check the display content of the display unit 22 through the window 32. On the other hand, when the cover 30 is in the open state, the display unit 22 can be adjusted to a desired angle as shown in FIG.

  Thus, when the cover 30 is in the open state, the cover 30 is held while being inclined obliquely rearward with respect to the operation panel 20 and can be used as a tray for supplying the paper P to the print mechanism 50. . Further, at the back of the operation panel 20, a paper feed port 58 of the printing mechanism 50 is provided, and a pair of paper guides 59, 59 that are slid in the left-right direction so that the guide width matches the paper width are provided. ing.

  Then, the paper P is sent to the print mechanism 50 through the paper supply port 58 and printing is executed. As shown in FIG. 2, the carriage 53 is driven by a timing belt 51 spanned in a loop shape in the left-right direction and reciprocates left and right along the guide 52. The carriage 53 is provided with a paper edge detection sensor 57 for detecting the left and right edges and the upper and lower edges of the paper P. In other words, the paper edge detection sensor 57 detects the left and right edges of the paper set in the paper supply port 58 before the printing, and allows the paper width to be recognized by detecting the right and left edges of the paper. Or detecting the trailing edge of the paper during printing to enable recognition of the paper length.

  The carriage 53 is mounted with an ink cartridge 54 that individually accommodates ink of each color such as cyan, magenta, yellow, and black. Each of these ink cartridges 54 is connected to a print head 55. The print head 55 applies pressure to the ink from the ink cartridge 54 and ejects the ink from the nozzle (not shown) toward the paper P. In this embodiment, the print head 55 employs a method in which a voltage is applied to the piezoelectric element to deform the piezoelectric element and pressurize the ink. However, a voltage is applied to the heating resistor (for example, a heater) to apply the ink. You may employ | adopt the system which pressurizes ink with the bubble generated by heating. The printed paper P is sent out to the opened front door (paper discharge tray) 14 by the transport roller 56.

  Further, a battery pack can be mounted on the back of the printer main body 12, and the printer 10 can be operated by a battery without being connected to a commercial power source. Because of this point and the fact that the printer 10 is a stand-alone printer that can be used without being connected to a host computer, the printer 10 is easy to carry and can be used anywhere.

  FIG. 3 is a block diagram showing the configuration of the controller 70. As shown in FIG. 3, the controller 70 is configured as a microprocessor centered on a CPU 71, and includes a RAM 72 for temporarily storing data such as a file list FL, various processing programs and various data, various programs and various tables. Are stored in the ROM 73, the print mechanism 50, the memory card slot 16, an interface (I / F) 76 that enables communication with a USB memory (not shown), and the like. Further, the controller 70 stores an edited image or the like in the memory card M or the USB memory, and outputs a control signal to the print head 55 of the print mechanism 50 and a control signal to the display unit 22 of the operation panel 20.

  Further, the controller 70 is provided with an image processing module 75 for performing necessary image processing on image data provided from an external storage medium such as a memory card M through the I / F 76. The image processing module 75 also has a function of generating image data corresponding to a printer-specific image such as a menu screen to be displayed on the display unit 22.

  The RGB image data output from the image processing module 75 is given to the LCD controller 74 for controlling the display of the display unit 22. In the following description, the number of pixels of the display unit 22 configured by the LCD display is 320 dots × 240 dots in a QVGA (Quarter Video Graphics Array) format, and one line of image data is configured by pixel data for 320 dots. One image is composed of 240 lines of line data.

  In the present embodiment, various screen display control programs are stored in the ROM 73, and various functions are realized by the CPU 71 executing these programs. Next, functions realized by the CPU 71 executing a screen display control program stored in the ROM 73 will be described with reference to FIGS.

  FIG. 4 is a diagram showing an example of the file list FL. FIG. 5 is a diagram illustrating an example of an image displayed on the display unit 22. FIG. 6 is a diagram illustrating an example of the jump number MoveCnt determined based on the image file number TP. FIG. 7 is a diagram showing an example of interleaving of image files. As shown in FIG. 3, the CPU 71 executes a program stored in the ROM 73, thereby functioning as a file list creation means 711 for creating the file list FL shown in FIG. 4 and an index based on the file list FL. Based on the function of the selection means 712 for selecting the number IndexNo. And the date information of the image file included in the file information FI in the file list FL (corresponding to the “generation date” of the present invention) date information A function as a determination unit 713 that performs determination regarding the shooting date date and a function as a counting unit 714 that counts the number of times the selection unit 712 has selected the index number IndexNo. Are realized. In addition, the CPU 71 gives an instruction to the I / F 76, whereby the file name FN unique to each image file stored in the external storage medium such as the memory card M, information on the shooting date date, etc. are transmitted via the I / F 76. A function for reading, a function for storing the file list FL created by the file list creation means 711 in the RAM 72, and an index number IndexNo. Selected by the selection means 712 by giving a command to the image processing module 75 and the LCD controller 74. A function of displaying an image based on the corresponding image file on the display unit 22. In the present embodiment, the memory card M is assumed to store an image file taken with a digital camera or a camera-equipped mobile phone, but the image file stored in the memory card M is not limited to this. Any image file such as an image file generated by a personal computer may be used.

  The file list creation means 711 includes an index number IndexNo for each file name FN unique to each image file stored in the memory card M read via the I / F (corresponding to “reading means” of the present invention) 76. A file that includes an assigned index number IndexNo., A file name FN corresponding to the assigned index number IndexNo., And information on the shooting date date of the image file read via the I / F 76 A file list FL composed of information FI is created (see FIG. 4). Further, the file list creation means 711 arranges the file information FI configured by assigning the index number IndexNo. To the file name FN in order from the oldest shooting date date of the image file in the order of the index number IndexNo. Configured to create.

  Further, as shown in FIG. 3, the file list FL created by the file list creation means 711 is stored in the RAM 72. Further, the file list creation means 711 creates a file list FL based on the information of the shooting date date of each image file at the time of creating the file list FL. The TD is derived, and the derived shooting days TD are stored in the RAM 72. The file list creation means 711 is configured to store the number TP of image files read from the memory card M in the RAM 72 when the file list FL is created. As described above, the RAM 72 is configured as the “file list storage unit” and “generation date storage unit” of the present invention.

  In this embodiment, the index number IndexNo. Is configured to be assigned in order from the image file having the oldest shooting date date. However, the method of assigning the index number IndexNo. Is not limited to this, and each file name FN is assigned. The index number IndexNo. May be assigned in any way. For example, the index number IndexNo. May be assigned to the file name FN in order from the newest shooting date date (from the most recent shooting), or the index numbers IndexNo in the order of the numbers when the file name FN is expressed in ASCII code. May be assigned. In the present embodiment, the index number IndexNo. Is composed of “number”, but the index number IndexNo. Is not limited to this, and any index number can be used as long as each file information FI can be classified reliably. You may adopt IndexNo.

  In this embodiment, taking as an example the case where 150 image files are stored in the memory card M, the file list creation means 711 creates a file list FL composed of 150 file information FIs. The number of image files stored in the memory card M is not limited to this number.

The selection means 712 is configured to sequentially select an index number IndexNo. From the file list FL when the left and right arrow buttons 24h and 24i provided on the operation panel 20 are operated when the user selects an image file. . Further, in this embodiment, when the memory card M is inserted into the memory card slot 16, the selection means 712 is configured to first select “0” which is the leading index number IndexNo. (FIG. 4). (Refer to the black frame). When the right arrow button 24i is pressed, the selection unit 712 selects the index number IndexNo. Of the file list FL in ascending order from small to large, and “149” which is the last index number IndexNo. Is selected. After that, “0” that is the first index number IndexNo. Is selected. That is, every time the right arrow button 24i is pressed,
"0" → "1" → "2" → …… → "0" → "1" → "2" → ……
As shown, the index number IndexNo. Is selected.

On the other hand, when the left arrow button 24h is pressed, the selection unit 712 selects the index number IndexNo. Of the file list FL in descending order from large to small, and selects “0” which is the first index number IndexNo. Then, “149” which is the last index number IndexNo. Is selected. That is, every time the left arrow button 24i is pressed,
“0” → “149” → “148” → …… → “0” → “149” → “148” → ……
As shown, the index number IndexNo. Is selected. Therefore, if any one of the left and right arrow buttons 24h and 24i is pressed, the index number IndexNo. Is selected by the selection means 712 in descending order or ascending order from the selected index number IndexNo.

  If the index number IndexNo. Is selected by the selection means 712, the CPU 71 sends the I / F 76 the image file corresponding to the file name FN based on the file name FN of the selected index number IndexNo. A command is given to acquire the image data from the memory card M. Next, when an instruction is given from the CPU 71 to the image processing module 75 and the LCD controller 74, the image IMG based on the image data acquired via the I / F 76, that is, the index number selected by the selection unit 712 is displayed. The image IMG of the image file corresponding to IndexNo. Is displayed on the display unit 22 (see FIG. 5). Each time a new index number IndexNo. Is selected by the selection means 712, the image IMG of the image file corresponding to the newly selected index number IndexNo. Is selected by the same procedure as described above. The image IMG corresponding to the number IndexNo. Is switched and displayed on the display unit 22.

Further, as shown in FIG. 5, the display unit 22 displays the image IMG corresponding to the index number IndexNo. Selected by the selection unit 712, the shooting date date of the image file of the image IMG, and the index being selected. A progress bar PB indicating the number of the image file of all the image files in the memory card M corresponding to the number IndexNo., And the number of the image file in all the image files. Is displayed as a fraction. In this embodiment, this fraction display is
(Index number IndexNo. + 1) / number of image files TP
Is displayed based on the index number IndexNo.

  A guide image for assisting the user in operating the left and right arrow buttons 24h and 24i and the OK button 24j is displayed below the display unit 22. That is, in this embodiment, when the left arrow button 24h is pressed, the selection unit 712 decreases the index numbers from large to small so that the images IMG are displayed on the display unit 22 in the order toward the old image file ( Select to return. On the other hand, if the right arrow button 24i is pressed, the selection unit 712 selects the index numbers in ascending order from small to large so that the image IMG is displayed on the display unit 22 in the order toward the new image file. To do. In addition, when the user presses the OK button 24j in a state where the image IMG corresponding to the specific image file is displayed on the display unit 22, an instruction is given from the CPU 71 to the print mechanism 50 and displayed on the display unit 22. The print mechanism 50 is driven so that the same image as the image IMG is printed on the paper P.

  With such a configuration, the user operates the left and right arrow buttons 24h and 24i for image search while looking at the image IMG displayed on the display unit 22, so that the image file stored in the memory card M can be used. Can search for specific image files. As described above, in this embodiment, the LCD controller 74, the image processing module 75, and the display unit 22 constitute the “display unit” of the present invention. Next, the function of the selection unit 712 when any of the left and right arrow buttons 24h and 24i is long pressed will be described in detail.

  In this embodiment, the selection means 712 determines which arrow button 24h, 24i is pressed at a rate of about once every 0.5 seconds if either of the left and right arrow buttons 24h, 24i is pressed for a long time. Accordingly, the index numbers IndexNo. Are sequentially selected. Further, the selection number cnt that the selection unit 712 has selected the index number IndexNo. Is counted by the counting unit 714, and this selection number cnt is stored as the count number 722 of the RAM 72.

  Then, if the selection count cnt is equal to or greater than the predetermined count, the selection means 712 is predetermined according to the number of file information FIs arranged in the file list FL, that is, the number of image files TP, as shown in FIG. The number of skips (corresponding to the “predetermined value” of the present invention) is configured to skip and select the index number IndexNo. For each MoveCnt. As shown in FIG. 6, specifically, the jump number MoveCnt is determined as follows according to the number of image files TP.

(A) 1 ≦ (number of image files TP) <50
Even if one of the left and right arrow buttons 24h and 24i is pressed for a long time, the selection unit 712 always selects the index number IndexNo. In order without skipping.

(B) 50 ≦ (number of image files TP) <250
If one of the left and right arrow buttons 24h, 24i is pressed for a long time and the selection count cnt is greater than 10, the skip count MoveCnt is set to “10”.

(C) 250 ≦ (number of image files TP)
If one of the left and right arrow buttons 24h, 24i is pressed for a long time and the selection count cnt is greater than 10, the skip count MoveCnt is set to “10”. Furthermore, if the number of selections cnt is greater than 20, the jump number MoveCnt is set to “50”. Note that after the skip number is set to 2 or more, the counting means 714 is configured to count as one selection count cnt when the selection means 712 skips and selects the index number IndexNo. .

  In addition, when there is a different shooting date date for each image file in which the file information FI is arranged in the file list FL, the selection unit 712 determines that when one of the left and right arrow buttons 24h and 24i is pressed for a long time, The index number IndexNo. Is selected as follows. As shown in FIG. 7, when the right arrow button 24i is pressed for a long time and the selection means 712 selects the index numbers IndexNo. In ascending order from small to large, the selection means 712 is selecting the file list FL. The selected index number when the shooting date date of the image file corresponding to the index number IndexNo. Is different from the shooting date date of the image file corresponding to the index number IndexNo. Among the index numbers IndexNo. Of image files with the same shooting date date as the image file corresponding to IndexNo., The index number IndexNo. Next to the largest index number IndexNo., That is, the index number of the image file group of the next shooting date date The selection means 712 changes the jump number MoveCnt so as to select the first index number IndexNo. It is configured to.

  For example, as shown in FIG. 7B, when the index number IndexNo. Being selected is “10”, if the skip number MoveCnt is set to “10”, the selection unit 712 selects the next. The index number IndexNo. Is “20”. However, the shooting date date of the image file whose index number is “10” is 2008/01/28, while the shooting date date of the image file whose index number is “20” is 08/08/2008. Therefore, the selection means 712 selects the index number IndexNo. Next to “15”, which is the largest index number IndexNo. Among the index numbers IndexNo. Of the image file whose shooting date date is 2008/01/28. Change the jump number MoveCnt to “6” to select “16”. That is, after “10” which is the index number IndexNo. Being selected, “16” is selected as the index number IndexNo., And the first image in the image file group having the shooting date “date” is 200/08/05. The file is displayed on the display unit 22. As shown in FIG. 5C, if the jump number MoveCnt is set to “20”, the index number IndexNo. Selected by the selection means 712 is the first index of the next shooting date date. The jump number MoveCnt is changed so that the number IndexNo. In FIG. 7, the description of the file name FN in the file list FL is omitted.

  On the other hand, when the left arrow button 24h is pressed for a long time and the selection unit 712 selects the index number IndexNo. In descending order from large to small, the selection unit 712 displays when the right arrow button 24i is pressed for a long time. It is configured to change the jump number MoveCnt. That is, when the shooting date date of the image file corresponding to the selected index number IndexNo. And the shooting date date of the image file corresponding to the index number IndexNo. Jumped from the index number IndexNo. Of the image files corresponding to the selected index number IndexNo. And the image date with the same shooting date date, the index number IndexNo. Next to the smallest index number IndexNo., That is, the image of the next shooting date date The selection means 712 is configured to change the jump number MoveCnt so as to select the last index number IndexNo. Of the file group index numbers IndexNo.

  When the right arrow button 24i is pressed for a long time, based on the information of the shooting date date in the file list FL corresponding to all index numbers IndexNo. Larger than the index number IndexNo. Being selected by the selection means 712, The determination unit 713 determines whether or not the file information FI of the image file shot on a date different from the shooting date date corresponding to the selected index number IndexNo. Is in the file list FL.

  On the other hand, when the left arrow button 24h is pressed for a long time, based on the information of the shooting date date in the file list FL corresponding to all index numbers IndexNo. Smaller than the index number IndexNo. Being selected by the selection means 712, The determination unit 713 determines whether or not the file information FI of the image file shot on a date different from the shooting date date corresponding to the selected index number IndexNo. Is in the file list FL. Therefore, the shooting date date of the image file corresponding to the index number IndexNo. Selected after the index number IndexNo. Being selected by the selection unit 712 is different from the shooting date date of the image file corresponding to the selected index number IndexNo. It can be easily determined whether or not there is something.

  Note that, as described above, a long press operation for at least a predetermined time with respect to any of the left and right arrow buttons 24h and 24i is employed as the “specific image search operation” of the present invention. The “specific image search operation” is not limited to this operation. For example, a dedicated specific image search operation button may be further provided, and the operation of the newly provided specific image search operation button may be adopted as the “specific image search operation”. Good. In addition, any operation that can be distinguished from a normal “image search operation” may be adopted as the “specific image search operation”. Next, processing when the memory card M is inserted into the memory card slot 16 will be described with reference to FIG. 8, and processing when the right arrow button 24i is pressed and held with reference to FIGS. A process when the left arrow button 24h is pressed for a long time will be described with reference to FIGS. Note that the processing when the right arrow button 24i is pressed for a long time and the processing when the left arrow button 24h is pressed for a long time are almost the same, and therefore, the respective flowcharts are provided with symbols so that the correspondence can be understood. ing.

  Further, the file information FI constituting the file list FL may include at least information related to the file name FN. Even in such a configuration, a memory address of the RAM 72 in which the file list FL is stored, a subscript for specifying the storage location of one of the array variables for storing the file list FL configured in the RAM 72, or The selection means 712 selects an arbitrary file name FN from the file list FL by using a pointer address or the like for specifying one data storage location of the pointer array variable for storing the file list configured in the RAM 72. An image based on the image file corresponding to the file name FN selected by the selection unit 712 can be displayed on the display unit 22. Of course, these memory addresses, subscripts, pointer addresses, etc. may be used in the same way as the above-described index number IndexNo. To create the file list FL and select the image file.

<Process when inserting memory card>
FIG. 8 is a diagram showing processing when a memory card is inserted. In this embodiment, if the memory card M is inserted into the memory card slot 16, the “memory card insertion process” is executed, and a command is given from the CPU 71 to the I / F 76 and inserted into the memory card slot 16. Each image file stored in the memory card M is configured to read information relating to the file name FN and the shooting date date (step S1). Then, the file list creation means 711 creates a file list FL in which the file information FI is arranged in the order of the shooting date date (see step S2, FIG. 4), and stores the created file list FL in the RAM 72.

Next, the following variables are:
TotalPicture image file number TP,
TotalDate is the number of shooting days TD,
“0” is substituted into DispIndex and stored in the RAM 72 (steps S3 to S5). “DispIndex” is a variable for storing the index number IndexNo. Selected by the selection unit 712. That is, when the memory card M is inserted into the memory card slot 16, the selection unit 712 selects “0” of the index number IndexNo. In step S 6, the image of the image file corresponding to “0” that is the index number IndexNo. Stored in DispIndex is displayed on the display unit 22, and the process ends.

<Right arrow button polling process>
FIG. 9 is a diagram showing a right arrow button polling process. In the present embodiment, this “right arrow button polling process” is executed as a polling process once in about 0.5 seconds. First, the flag 721 used in this process will be described.

Pre_RightSWState: a flag 721 that is set to ON when the right arrow button 24i is pressed at the time of execution of the “right arrow button polling process” one time before, and set to OFF when the right arrow button 24i is not pressed. The state of this flag 721 is stored.
Crr_RightSWState: a flag 721 that is set to ON when the right arrow button 24i is pressed during execution of the “right arrow button polling process” and set to OFF when the right arrow button 24i is not pressed. Is stored.

  First, in step S10, the CPU 71 confirms whether or not the right arrow button 24i is pressed. When the button is pressed, Crr_RightSWState is set to ON. When the button is not pressed, Crr_RightSWState is set to OFF and the flag is set. The state of 721 is stored in the RAM 72. Next, in step S11, whether or not the pressing state of the right arrow button 24i at the time of executing the “right arrow button polling process” one time before is OFF, and whether or not the pressing state of the right arrow button 24i confirmed in step S10 is ON. When the determination is YES, the count means 714 initializes the selection count cnt to “0” (step S12). Next, 1 is added to the number of selections cnt by the counting means 714 (step S13), and an “image right feed process” described later is executed (step S14). Then, the current Crr_RightSWState state is set in Pre_RightSWState, and the process ends (step S15).

  On the other hand, if NO is determined in step S11, the pressing state of the right arrow button 24i at the time of the previous execution of the “right arrow button polling process” is ON, and the pressing state of the right arrow button 24i confirmed in step S10 is ON. It is determined whether or not there is (step S16). If it determines with YES in step S16, it will progress to step S13, and if it determines with NO, it will progress to step S15.

<Right image processing>
FIG. 10 is a diagram illustrating a right-shift process for an image. First, in step S20, it is determined whether or not the number of image files TP is smaller than “50”. If YES is determined, the skip number MoveCnt is set to “1” by the selection means 712 (step S21, FIG. 6 (a)). Next, an “increment process” to be described later is executed (step S22), and the image of the image file corresponding to the index number IndexNo. Selected by the selection unit 712 in the “increment process” is displayed on the display unit 22 for processing. The process ends (step S23).

  On the other hand, if NO is determined in step S20, it is determined whether or not the number of image files TP is smaller than “250” (step S24). If YES is determined, whether or not the number of selections is further larger than 10. Is determined (step S25). If it is determined as NO in step S25, the process proceeds to step S21. If YES is determined in step S25, the selection unit 712 sets the jump number MoveCnt to “10” (see step S26, FIG. 6B). Next, “last date check process (increment)” to be described later is executed (step S27), and the process proceeds to step S22.

  If NO is determined in step S24, it is determined in step S28 whether the number of selections cnt is larger than 20, and if NO is determined, the process proceeds to step S25. On the other hand, if YES is determined in the step S28, the selection unit 712 sets the jump number MoveCnt to “50” and proceeds to the step S27 (see the step S29, FIG. 6C).

<Increment processing>
FIG. 11 is a diagram showing the increment process. In step S30, it is determined whether or not the value obtained by adding the skip number MoveCnt to the index number IndexNo. (DispIndex) selected by the selection means 712 is smaller than the image file number TP (TotalPicture). If “YES” is determined in step S30, the selection unit 712 selects a value obtained by adding the jump number MoveCnt to the selected index number IndexNo. As a new index number IndexNo., And ends the process (step S31). On the other hand, if NO is determined in step S30, the selection unit 712 subtracts the image file number TP (TotalPicture) from the value obtained by adding the jump number MoveCnt to the index number IndexNo. Being selected as a new index number IndexNo. Select and finish the process (step S32). With such a configuration, when the value obtained by adding the skip number MoveCnt to the index number IndexNo. (DispIndex) being selected exceeds the number TP (TotalPicture) of the image files, the image returns to the top of the index number IndexNo. Files will be skipped.

<Shooting date check process (increment)>
FIG. 12 shows the shooting date check process (increment). First, it is determined whether the number of shooting days TD (TotalDate) is 2 or more (step S40). If YES is determined in step S40, among the image files corresponding to all index numbers IndexNo. Larger than the index number IndexNo. Being selected by the selection means 712, the shooting date date is more than the image file being selected. It is determined whether there is a new image file (step S41). If it is determined as YES in step S41, the selection unit 712 sets the top index number IndexNo. Of the image file group of the next shooting date date (in ascending order) of the shooting date date corresponding to the selected index number IndexNo. It is temporarily stored in the variable DateIndex and saved in the RAM 72 (step S42).

  Subsequently, a value for jumping from the selected index number IndexNo. (DispIndex) to the index number IndexNo. Stored in DateIndex is temporarily stored in the variable DateOffset by the selection unit 712 and stored in the RAM 72. (Step S43). On the other hand, if NO is determined in step S41, a value for jumping from the selected index number IndexNo. (DispIndex) to the next to the last index number IndexNo. Is temporarily stored in the variable DateOffset by the selection unit 712. And stored in the RAM 72 (step S46). Then, when the jump number MoveCnt jumps from the selected index number IndexNo., It is determined whether the shooting date date corresponding to the index number IndexNo. After the jump is different from the selected shooting date date (step). S44). If YES is determined in step S44, that is, if it is determined that the shooting date date is not different, the “increment process” described above is executed and the process is terminated (step S45). On the other hand, if it is determined NO in step S44, that is, if it is determined that the shooting date date is different, the selection unit 712 changes the jump number MoveCnt to a value temporarily stored in DateOffset ( The process proceeds to step S47) and step S45.

  Moreover, if it determines with NO in step S40, it will progress to step S45. With such a configuration, when the process proceeds to the increment process of step S45 without changing the jump number MoveCnt, the selection means 712 jumps over a plurality of shooting dates when selecting the next index number IndexNo. By changing the number MoveCnt, the first index number IndexNo. Of the image file group of the next shooting date date (in ascending order) of the shooting date date corresponding to the selected index number IndexNo. Is selected. If the shooting date date corresponding to the selected index number IndexNo. Is the newest shooting date date in the file list FL, the first index number IndexNo. In the file list FL is selected. Selected by means 712.

<Left arrow button polling process>
FIG. 13 is a diagram showing a left arrow button polling process. In the present embodiment, this “left arrow button polling process” is executed as a polling process once in about 0.5 seconds. First, the flag 721 used in this process will be described.

Pre_LeftSWState... Flag 721 that is set to ON when the left arrow button 24h is pressed at the time of executing the “left arrow button polling process” one time before, and set to OFF when the left arrow button 24h is not pressed. The state of this flag 721 is stored.
Crr_LeftSWState... Is a flag 721 that is set to ON when the left arrow button 24h is pressed during execution of the “left arrow button polling process”, and set to OFF when the left arrow button 24h is not pressed. Is stored.

  First, in step # 10, the CPU 71 confirms the pressed state of the left arrow button 24h. When the button is pressed, Crr_LeftSWState is set to ON. When the button is not pressed, Crr_LeftSWState is set to OFF and set. The state of the flag 721 is stored in the RAM 72. Next, in step # 11, when the “left arrow button polling process” is executed one time before, the pressed state of the left arrow button 24h is OFF, and the pressed state of the left arrow button 24h confirmed in step # 10 is ON. If it is determined, and YES is determined, the counting means 714 initializes the selection count cnt to “0” (step # 12). Next, 1 is added to the number of selections cnt by the counting means 714 (step # 13), and an “image left feed process” described later is executed (step # 14). Then, the current Crr_LeftSWState state is set in Pre_LeftSWState, and the process ends (step # 15).

  On the other hand, if it is determined NO in step # 11, the pressing state of the left arrow button 24h at the time of the previous execution of the “left arrow button polling process” is ON, and the pressing state of the left arrow button 24h confirmed in step # 10 is It is determined whether it is ON (step # 16). If it determines with YES in step # 16, it will progress to step # 13, and if it determines with NO, it will progress to step # 15.

<Left feed processing of image>
FIG. 14 is a diagram showing a left-feed process of an image. First, in step # 20, it is determined whether or not the number of image files TP is smaller than “50”. If YES, the selection unit 712 sets the skip number MoveCnt to “1” (step # 21). FIG. 6 (a)). Next, a “decrement process” to be described later is executed (step # 22), and the image of the image file corresponding to the index number IndexNo. Selected by the selection means 712 in the “decrement process” is displayed on the display unit 22 and processed. Is finished (step # 23).

  On the other hand, if NO is determined in step # 20, it is determined whether the number of image files TP is smaller than "250" (step # 24). If YES is determined, the number of selections is further larger than 10. Is determined (step # 25). If NO is determined in step # 25, the process proceeds to step # 21. If YES is determined in step # 25, the selection unit 712 sets the jump number MoveCnt to “10” (see step # 26, FIG. 6B). Next, “last date check process (decrement)” to be described later is executed (step # 27), and the process proceeds to step # 22.

  If NO is determined in step # 24, it is determined in step # 28 whether the number of selections cnt is greater than 20. If NO is determined, the process proceeds to step # 25. On the other hand, if “YES” is determined in step # 28, the jump number MoveCnt is set to “50” by the selection means 712, and the process proceeds to step # 27 (step # 29, see FIG. 6C).

<Decrement processing>
FIG. 15 shows the decrement process. In step # 30, it is determined whether or not the value of the index number IndexNo. (DispIndex) being selected by the selection means 712 is equal to or greater than the value of the jump number MoveCnt. If YES is determined in step # 30, the selecting means 712 selects a value obtained by subtracting the value of the jump number MoveCnt from the value of the index number IndexNo. Being selected as a new index number IndexNo. # 31). On the other hand, if NO is determined in step # 30, the selecting means 712 selects a value obtained by subtracting the value of the selected index number IndexNo. From the value of the skip number MoveCnt as the new index number IndexNo. Then, the process ends (step # 32). With such a configuration, when the value obtained by subtracting the skip number MoveCnt from the index number IndexNo. (DispIndex) being selected indicates the position before the first file of the image file in the file list FL, the index Returning to the end of the number IndexNo., The image file is skipped.

<Shooting date check process (decrement)>
FIG. 16 is a diagram showing a shooting date check process (decrement). First, it is determined whether the number of shooting days TD (TotalDate) is 2 or more (step # 40). If it is determined YES in step # 40, the shooting date “date” is selected from the image files corresponding to all index numbers “IndexNo.” Smaller than the index number “IndexNo.” Selected by the selection unit 712. It is determined whether there is an old image file (step # 41). If it is determined YES in step # 41, the last index number IndexNo. Of the image file group of the next shooting date date of the shooting date date corresponding to the selected index number IndexNo. Thus, it is temporarily stored in the variable DateIndex and saved in the RAM 72 (step # 42).

  Subsequently, a value for jumping from the selected index number IndexNo. (DispIndex) to the index number IndexNo. Stored in DateIndex is temporarily stored in the variable DateOffset by the selection unit 712 and stored in the RAM 72. (Step # 43). On the other hand, if NO is determined in step # 41, a value for jumping from the selected index number IndexNo. (DispIndex) to the next index number IndexNo. Is temporarily stored in the variable DateOffset by the selection unit 712. Stored and saved in the RAM 72 (step # 46). Then, when the jump number MoveCnt jumps from the selected index number IndexNo., It is determined whether the shooting date date corresponding to the index number IndexNo. After the jump is different from the selected shooting date date (step). # 44). If YES is determined in step # 44, that is, if it is determined that the shooting date date is not different, the above-described “decrement process” is executed and the process is terminated (step # 45). If NO is determined in step # 44, that is, if it is determined that the shooting date date is different, the selection unit 712 changes the jump number MoveCnt to a value temporarily stored in DateOffset. (Step # 47), the process proceeds to Step # 45.

  If NO is determined in step # 40, the process proceeds to step # 45. With such a configuration, when the process proceeds to the decrement process in step # 45 without changing the jump number MoveCnt, the selection means 712 selects the next index number IndexNo. By changing the jump number MoveCnt, the last index number IndexNo. Of the image file group of the next shooting date date of the shooting date date corresponding to the selected index number IndexNo. Is selected (in descending order). If the shooting date date corresponding to the selected index number IndexNo. Is the oldest shooting date date in the file list FL, the last index number IndexNo. In the file list FL is selected. Selected by means 712. Next, a modification will be described with reference to FIGS. 17 and 18.

<Modification>
FIG. 17 is a diagram showing the second shooting date check process (increment). FIG. 18 shows the second shooting date check process (decrement). This modification differs from the above-described processing in that it corresponds to the index number IndexNo. Selected by the selection means 712 when the user selects the image file (image search) by operating the left and right arrow buttons 24h and 24i. The counting means 714 counts the number of times the image file shooting date date is different from the image file shooting date date corresponding to the index number IndexNo. Selected immediately before, and stores it in the variable DateCnt as the count number 722 in the RAM 72. It is a point to remember.

  Then, the determination unit 713 compares the count number 722 (DateCnt) with the shooting day number TD (TotalDate), and if the shooting day number TD is larger than the count number DateCnt, the index number IndexNo. It is configured to determine that the file information FI of the image file shot on a date different from the shooting date date corresponding to is in the file list FL (see step S41a in FIG. 17 and step # 41a in FIG. 18). Since other configurations and operations are the same as those described above, description of the configurations and operations is omitted. With such a configuration, the determination unit 713 compares the count number DateCnt counted by the count unit 714 with the shooting day number TD stored in advance in the RAM 72, and the stored shooting day number TD is calculated from the count number DateCnt. If it is larger, it can be easily determined that the file information FI of the image file shot on a date different from the shooting date date corresponding to the index number IndexNo. Selected by the selection means 712 is in the file list FL.

  As described above, in the present embodiment, when the user presses the left and right arrow buttons 24h and 24i for a long time, the selection unit 712 determines the number of jumps MoveCnt determined in advance according to the number of file information FIs arranged in the file list FL. In order to skip and select the index number IndexNo., Images are displayed on the display unit 22 while skipping a plurality of image files stored in the memory card M for each number of skips MoveCnt. That is, since the jump number MoveCnt is determined in advance according to the number of image files stored in the memory card M, when the user presses the left and right arrow buttons 24h and 24i for a long time, an appropriate number of image files are skipped. An image is displayed on the display unit 22. Therefore, no matter how many image files are stored in the memory card M, a specific image file can be efficiently searched from the image files stored in the memory card M.

  Further, by arranging the order of the file information FI in the file list FL in the order of the shooting date date of the image file, the images are displayed on the display unit 22 in the order of the shooting date date of the image file. Accordingly, since the user can intuitively know the order of arrangement of the file information FI in the file list FL, the user can efficiently search for a specific image file from the image files in the memory card M. In particular, it is possible to display images in an order that is intuitively understandable for a user who directly displays an image file shot by a shooting device such as a digital camera on the photo printer 10 or the like without using a personal computer.

  When the shooting date date of the image file corresponding to the currently selected index number IndexNo. Is different from the shooting date date of the image file corresponding to the index number IndexNo. Selected by the selection unit 712, the selection unit Reference numeral 712 selects the first or last index number IndexNo. Of the image file group of the next shooting date date (in ascending or descending order) of the image file corresponding to the selected index number IndexNo. Therefore, the selection unit 712 does not select the index number IndexNo. So as to greatly jump over the shooting date date of the image file. Therefore, the selection unit 712 selects a specific image file among the image files having the same shooting date date. It can be easily realized by a long press operation of the left and right arrow buttons 24h and 24i by the user. In this way, the amount of image feed displayed on the display unit 22 can be adjusted by a simple operation of long pressing the left and right arrow buttons 24h and 24i, and the time for searching for a specific image can be shortened.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the “storage unit” of the present invention is configured by the memory card M, but the “storage unit” can be configured by various storage media such as an optical disk instead. Further, the “storage means” may be constituted by a built-in hard disk drive or the like.

  In the above-described embodiment, the selection unit 712 changes the jump number MoveCnt so as not to greatly jump over different shooting dates when selecting an image file based on the shooting date date information. This may be configured to change the jump number MoveCnt based on information such as the shooting week, the shooting month, and the shooting time. In the above-described embodiment, the CPU 71 executes various programs stored in the ROM 73 so that the various functions described above are realized. However, these functions are realized by hardware. May be.

  In the above embodiment, the ink cartridge type photo printer 10 has been described as an example. However, the present invention may be applied to other screen display devices such as an ink jet printer. In addition, the present invention can be widely applied to devices capable of displaying images, such as a photo viewer, a digital still camera, a projector, a photo display of a mobile phone, and a personal computer.

1 is a perspective view showing a photo printer which is an embodiment of an image display device of the present invention. FIG. 2 is a diagram illustrating an outline of an internal configuration of a photo printer. The block diagram which shows the structure of a controller. The figure which shows an example of a file list. The figure which shows an example of the image displayed on a display part. The figure which shows an example of the number of jumps defined based on the number of image files. The figure which shows an example of the jump of an image file. The figure which shows a process at the time of memory card insertion. The figure which shows a right arrow button polling process. The figure which shows the right advance process of an image. The figure which shows an increment process. The figure which shows an imaging | photography date check process (increment). The figure which shows a left arrow button polling process. The figure which shows the left feed process of an image. The figure which shows a decrement process. The figure which shows an imaging | photography date check process (decrement). The figure which shows the 2nd imaging date check process (increment). The figure which shows a 2nd imaging | photography date check process (decrement).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Photo printer (image display apparatus), 22 ... Display part (display means), 24h, 24i ... Arrow button (operation part), 711 ... File list creation means, 712 ... Selection means, 713 ... Determination means, 714 ... Count Means 72 ... RAM (file list storage means, generation days storage means) 74 ... LCD controller (display means) 75 ... Image processing module (display means) 76 ... Interface (I / F) (read means), date ... shooting date (generation date), DateCnt ... count, FI ... file information, FL ... file list, FN ... file name, IndexNo .... index number, MoveCnt ... jump number (predetermined value)

Claims (9)

In an image display device that displays an image based on an image file stored in a storage unit in response to an image search operation of an operation unit by a user,
Reading means for reading a unique file name for each of the plurality of image files stored in the storage means;
An index number is sequentially assigned to each of the file names read by the reading unit, and file information including the assigned index number and the file name corresponding to the index number is assigned to each image file in the order of the index number. A file list creation means for creating a file list arranged side by side;
File list storage means for storing the file list created by the file list creation means;
A selection means for sequentially selecting an index number from the file list during an image search operation of the operation unit by a user;
Display means for displaying an image based on the image file corresponding to the index number selected by the selection means,
The selection means skips an index number for each predetermined value determined in advance according to the number of the file information arranged in the file list when the user performs a specific image search operation of the operation unit. A characteristic image display device. The file information further includes information relating to a generation date of the image file read by the reading unit,
2. The image display device according to claim 1, wherein the file list creation unit creates the file list by assigning an index number to each of the file names in the order of the generation date. At the time of the specific image search operation when there is a different generation date of each image file in which the file information is arranged in the file list,
The selecting means selects an index number in ascending order from small to large, and generates the image file corresponding to the index number being selected and an index number obtained by adding the predetermined value to the index number. When the generation date of the corresponding image file is different,
The predetermined value is changed so as to select an index number next to the largest index number among index numbers of the image file having the same generation date as the image file corresponding to the selected index number. The image display device according to claim 2. At the time of the specific image search operation when there is a different generation date of each image file in which the file information is arranged in the file list,
The selecting means selects an index number in descending order from large to small, and generates the image file corresponding to the selected index number and an index number obtained by subtracting the predetermined value from the index number. When the generation date of the corresponding image file is different,
The predetermined value is changed so as to select an index number next to the smallest index number among index numbers of the image file having the same generation date as the image file corresponding to the selected index number. The image display device according to claim 2.   The image generated on a date different from the generation date corresponding to the selected index number based on the generation date information in the file list corresponding to all index numbers larger than the index number being selected by the selection means The image display apparatus according to claim 3, further comprising a determination unit that determines whether or not the file information of a file is in the file list.   The image generated on a date different from the generation date corresponding to the selected index number based on the generation date information in the file list corresponding to all index numbers smaller than the index number being selected by the selection means The image display apparatus according to claim 4, further comprising a determination unit that determines whether or not the file information of a file is in the file list. Generation date storage means for preliminarily storing the generation dates of all the image files based on the generation date information of each image file when the file list is created by the file list creation means;
At the time of the image search operation and the specific image search operation, the generation date of the image file corresponding to the index number selected by the selection means is the generation date of the image file corresponding to the index number selected immediately before A counting means for counting different times;
The count number counted by the counting means and the number of generation days stored in advance by the generation day storage means are compared, and if the number of generation days stored is larger than the count number, the selection 4. A determination means for determining that the file information of the image file generated on a date different from the generation date corresponding to the index number selected by the means is in the file list. 5. The image display device according to 4. In an image display device that displays an image based on an image file stored in a storage unit in response to an image search operation of an operation unit by a user,
Reading means for reading a unique file name for each of the plurality of image files stored in the storage means;
File list creation means for creating a file list in which file information including each file name read by the reading means is arranged in an arbitrary arrangement order for each of the image files;
File list storage means for storing the file list created by the file list creation means;
A selection means for selecting the file names in the arrangement order from the file list at the time of the image search operation of the operation unit by a user;
Display means for displaying an image based on the image file corresponding to the file name selected by the selection means;
The selection means skips and selects the file name for each predetermined value determined in accordance with the number of the file information arranged in the file list when the user performs a specific image search operation of the operation unit. An image display device characterized by the above. In a program for controlling an image display device that displays an image based on an image file stored in a storage unit in accordance with an image search operation of an operation unit by a user,
A function for reading a file name unique to each of the plurality of image files stored in the storage means by the reading means;
An index number is sequentially assigned to each of the file names read by the reading unit, and file information including the assigned index number and the file name corresponding to the index number is assigned to each image file in the order of the index number. A file list creation function that creates a file list that is arranged side by side,
A function for storing the file list created by the file list creation function in a file list storage means;
A selection function for sequentially selecting an index number from the file list during an image search operation of the operation unit by the user;
A display function for displaying on the display means an image based on the image file corresponding to the index number selected by the selection function;
The selection function skips an index number for each predetermined value determined in accordance with the number of the file information arranged in the file list when a user performs a specific image search operation of the operation unit. A program for controlling an image display device, which functions.

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