JPH11164232A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save labor and time of giving key information and to extract many images in a short time by having a 1st display mode which successively shows low resolution image data of each image file. SOLUTION: When a magneto-topical disk drive 13 is inserted into this image display device 1 and a power supply button is pressed to be turned on, a program in a ROM 2 that is connected to a data processing part 4 is read. A scanning part 7, a memory card slot 9, a USB port 10 and a magneto-optical disk drive interface 12 become available after initialization processing of a RAM 3, etc., is performed according to a processing procedure in the program. A graphic controller +VRAM 5 that is under the control of the part 4 is controlled and an initial image is sown on a displaying part 6. When a feed key is pressed, it becomes a browsing mode, high resolution image data is shown in every frame in order of photographed dates from a file of an optical disk 14 and a target image can be extracted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device for displaying image data recorded on an image recording medium.

[0002]

2. Description of the Related Art In an image display apparatus, as a method of extracting a target image file from an image recording medium on which a plurality of image files are recorded, there is a method by inputting key information. In this method, it is necessary that key information (code information) is associated with each image file.

[0003] In addition to extraction from key information,
A target image can be extracted using the browsing function. Note that the browsing function refers to a function of displaying images one by one on a display screen. That is, by stopping browsing or not continuing browsing when the target image is displayed, the target image file can be extracted by visual judgment of the operator.

[0004]

However, in the method of extracting a target image file by inputting the key information, it is necessary to systematize the key information and assign the key information. The work has a great effort. In particular, it is necessary to add (input) key information to image data photographed by a digital camera at the time of photographing. This work is generally troublesome, and if the focus is on giving key information, a shutter chance is missed.

On the other hand, in the method of extracting a target image using the browsing function, the target image can be practically and reliably extracted if the target image is extracted from tens of image data. . However, if the number of target image data increases, browsing takes a very long time and is not practical. Especially for digital cameras, D
Due to the fact that PE (phenomenon, printing, stretching) is not required, many shots are often taken as compared to silver halide cameras. Therefore, the number of image data tends to increase.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides an image display device which does not have to add key information and can extract a target image in a short time even if the number of image data is large. The purpose is to do.

[0007]

According to the present invention, there is provided an image recording medium comprising: a plurality of image files storing low-resolution image data and high-resolution image data; An image display device for displaying image data is provided with display means having a first display mode for sequentially displaying low-resolution image data of each image file.

In the above configuration, when the image data is displayed in the first display mode for sequentially displaying low-resolution image data,
The display time (the time required until the image data is displayed) is shorter than in the case where the high-resolution image data is sequentially displayed, and the browsing can be performed at high speed. Also,
Even if the resolution is low, it is possible to sufficiently determine which image file the image data belongs to, so that a target image can be accurately extracted in a short time.

According to a fourth aspect of the present invention, there is provided an image display apparatus for displaying image data of an image recording medium on which a plurality of image files storing image data are recorded, wherein a predetermined number of image data of each image file are stored. And a display unit having a display mode for displaying only a part of the display mode.

In the above configuration, when the image data is displayed in the display mode in which only a predetermined portion of the image data is displayed, the display time is shorter than when the entire image data is displayed, and the browsing can be performed at a higher speed. In addition, even if only a part of the image data is displayed, by displaying an area large enough to determine which image file the image data belongs to, it is possible to accurately and accurately display a target image in a short time. It can be extracted.

[0011] According to an eighth aspect of the present invention, in an image display apparatus for displaying image data of an image recording medium in which a plurality of image files storing image data are recorded, the image data of each image file is thinned out. And a display means having a display mode for displaying the image.

[0012] In the above configuration, the display time is shortened and browsing can be performed at high speed as compared with the case of displaying all the image data, similarly to the invention of the fourth aspect.
In addition, by using a thinning method that can sufficiently determine which image file is the image data, a target image can be accurately extracted in a short time.

[0013]

FIG. 1 is a block diagram showing an image display system including an image display device according to a first embodiment of the present invention. The main body 1 of the image display device includes:
A memory card slot 9 for mounting a memory card 8 on which an image captured by a digital camera is recorded, and a USB port 10 for connecting a printer 11 or a personal computer (PC) 15 are provided.

Further, a magneto-optical disk interface 12 is provided, through which the magneto-optical disk 1 is connected.
4 is directly connectable to the image display apparatus main body 1. Memory card 8
And the image recorded on the magneto-optical disk 14
By operating various switches of the operation unit 7, the display is displayed on the display unit 6 made of liquid crystal. An operation menu for performing various operations is also displayed on the display unit 6.

The control of the image display apparatus main body 1 is as follows. The CPU in the data processing section 4 reads out a program stored in the ROM 2 and, based on this program, a memory card slot 9, a USB port 10, a magneto-optical interface 12, a graphic This is performed by controlling the controller and the VRAM 5.

The data processing unit 4 has a real-time clock (RTC) driven by a backup battery 17.
16 is connected, the date and time at which the data was processed can be recorded on the magneto-optical disk 14 or the memory card 8. The result of the transfer to the magneto-optical disk 14 is recorded in the flash memory 19.

The image display apparatus main body 1 is supplied with electric power by a battery of a power supply section 18 and also can be supplied with electric power by an AC adapter (not shown). FIG. 2 is an external view of the image display system shown in FIG.

Next, the data arrangement in the memory card 8 will be described. FIG. 3 schematically shows a data array in the memory card 8. An image composed of 40 frames is recorded on the memory card 8 by the digital camera, and each frame includes a tag 81 and high-resolution image data (640 × 480 pixels) 82 compressed in the JPEG format.
And low-resolution image data (80 × 6
0 pixels) 83 are recorded.

Each frame can be handled as, for example, an EXIF format image file. The tag 81 stores shooting date, flash on / off data at the time of shooting, and the like.

Next, the data arrangement in the magneto-optical disk 14 will be described. Image data of the memory card 8 can be transferred and recorded on the magneto-optical disk 14.
FIG. 4 schematically shows a data array in the magneto-optical disk 14. In the image file, No. 1,
No. 2, No. 3,... No. n,. Each file records high-resolution image data 142, low-resolution image data 143 for displaying thumbnails, and tag information 141, similarly to the memory card 8.

Further, there is a file management unit 144 for managing each image file, in which a table for associating the entire directory structure, file numbers, file names, and directories is recorded.

Next, the image display control of the apparatus 1 will be described. Note that, specifically, control for displaying images one by one (browsing) will be described. FIG. 5 is a front view of the image display device 1 on which the magneto-optical disk drive 13 is mounted. Power button 71, arrow keys 791, 792,
793, 794, Menu key 771, Enter key 7
72, high-speed reverse key 72, reverse key 73, stop key 7
4. Forward key 75, fast forward key 76, jog shuttle 7
8 constitutes the operation unit 7 of the main body 1.

When the magneto-optical disk drive 13 is mounted on the main body 1 and the power button 71 of the main body 1 is pressed and turned on, the program in the main body ROM 2 connected to the data processing section 4 is read. After performing initialization processing of the RAM 3 and the like according to the processing procedure in the program, the operation unit 7,
The memory card slot 9, USB port 10, and magneto-optical disk interface 12 can be used.

Thereafter, the graphic controller and the VRAM 5 under the control of the data processing unit 6 are controlled, and the initial screen D1 is displayed on the display unit 6. FIG. 6 is a flowchart showing the transition of the operation screen. On screen D1,
By pressing the arrow keys 791 and 793, the options can be changed in order. When performing search by browsing, the operator selects “1. image display” from the options on the screen D1. When the enter key 772 is pressed in this state, a media selection screen D2 is displayed.

Here, the installed one of the magneto-optical disk 14 and the memory card 8 is selected. Devices that are not mounted may not be selectable, or the display method may be changed. For example, a method of displaying in a light color can be considered. Further, in the present embodiment, when both are mounted, the magneto-optical disk is selected, but this may be changed to a memory card. The operator uses the arrow keys 791,
By pressing 793, the options can be changed. Here, it is assumed that the initially selected “11. magneto-optical disk” is left as it is.

When the feed key 75 is depressed in this state, a browsing mode is set, and high-resolution image data from the files on the magneto-optical disk 14 is displayed for each frame in the order of photographing date (screen D4). Stop key 7 in browsing mode
When 4 is pressed, the image displayed when the key 74 is pressed remains in the displayed state. In this way, a target image can be extracted by visual judgment of the operator.

On the other hand, when the fast forward key 76 is pressed on the screen D2, a high speed browsing mode for displaying thumbnail image data from the files on the magneto-optical disk 14 for each frame in the order of the shooting date is set (screen D3). Since the thumbnail data size is 80 × 60 (pixel) and the display area is 640 × 480 (pixel), the thumbnail image is complemented and enlarged by displaying it when displaying.
Increases visibility.

When the stop key 74 is pressed in the high-speed browsing mode, the image displayed when the key 74 is pressed remains displayed (screen D5). In this way, a target image can be extracted by visual judgment of the operator. When the menu key 771 is pressed on the screen D5, the screen D
Transitions to 1. Pressing the forward key 75 on the screen D5 switches to the browsing mode, and pressing the fast-forward key 76 switches to the high-speed browsing mode.

In the above description, the case where the operation is performed using only the keys of the operation unit 7 has been described. However, the operation having the same function can be performed using the jog shuttle 78. FIG. 7 shows a detailed front view of the jog shuttle 78. The jog shuttle 78 has an external rotating wheel 781
And an internal rotating section 782. The external rotating wheel 781 is
It can rotate within the range of ± 90 °, and has the same function as the next key according to the rotation angle. +10 ゜ to +30 ゜: Forward key 75 +50 ゜ to +70 ゜: Fast forward key 76 -10 ゜ to -30 ゜: Reverse key 73 -50 ゜ to -70 ゜: High speed reverse key 72

The outer rotating wheel 781 is biased by a spring.
The position is 0 ° unless the finger is held in a rotating state. When operating in the browsing mode or the high browsing mode using the jog shuttle 78, the external rotating wheel 78 is used.
Since the user keeps his / her hand on 1, the reaction of performing the operation of stopping when the target image is displayed is faster than performing the operation using the keys of the operation unit 7.

The internal rotating portion 782 has a recess 783 for putting a finger, and has a click stop and a contact every 30 °. When the image is displayed on the screen D5, if the internal rotation unit 782 is rotated one unit in the + direction, the image of the next frame is displayed. When the image is rotated by one unit in the negative direction, the image of the previous frame is displayed.

<Second Embodiment> In the first embodiment,
Although the thumbnail images are displayed in the high-speed browsing mode, there are cases where there is no thumbnail image corresponding to the image data depending on the image file format. In order to cope with such a case, in the present embodiment, a head part display function for displaying only the head part of the image file is provided.

According to the head display function, the amount of image data to be displayed is small, so that image data can be displayed in a short time. In other words, you can lounge in a short time. Other parts other than the head part display function are the same as those of the first embodiment, and hence only the head part display function will be described below. In the present embodiment, it is assumed that no thumbnail image is recorded on the magneto-optical disk 14 (and the memory card 8) as shown in FIG. Can be used.

FIG. 9 shows a flowchart of the control of the data processing unit 4 based on the head part display function. When the enter key 772 is pressed on the screen D2, control based on the head part display function is started. First, an image file is specified in S100. In the present embodiment, when the magneto-optical disk 14 is selected as the medium, the image file is designated by designating the image file number.

Here, the image file of No. 1 is always designated, but the designation of the image file is not limited to this method. It is also possible to allow the operator to specify.

Next, the designated image file is accessed in S101, and the tag portion of the image file is read in S102. At this time, the size of the image data is obtained. S
The position of the head of the image is calculated from the image size acquired in 103. In the present embodiment, the image data of the portion corresponding to the uppermost region among the regions into which the image is horizontally divided into three equal parts is defined as the head image data. For example, if the image is as shown in FIG.
The image data of the part corresponding to the FD is defined as the image data of the head part.

In S104, only the data corresponding to the square AEFD is read, and the data read in S105 is displayed (see FIG. 10B). And S10
In 6, the process proceeds to the designation of the next image file. In the specification of the next image file, when the internal rotation unit 782 of the jog shuttle 78 is rotated by one unit in the + direction by the operator, the image file of the next number is specified, and the image file of the next number is set in the-direction. In the case of unit rotation, the image file of the previous number is designated. Alternatively, the high-speed browsing mode may be performed as in the first embodiment. In this case, the specification of the image file is automatically performed.

If there is no image file corresponding to the designated number, the flow advances from S107 to S108 to end the display. If there is an image file, the process returns to S101 and returns to S101.
The processing from 101 to S106 is repeated. As described above, in the present embodiment, the operator can search for images while viewing images sequentially displayed by the operation. At this time, since only a part of the image is displayed, the time required for displaying one image is short, and the image can be searched in a short time.

<Third Embodiment> In this embodiment, a center portion display function for displaying only the center portion of an image file is provided. In the control of the center part display function of the present embodiment, the position of the center part of the image data (the position of the image data corresponding to the square EGHF in the case of FIG. 10A) is specified in S103, and that part is specified in S104. The only difference is that the center part read in S105 is read, and the other processing is the same as the control of the head part display function of the second embodiment. Also in the present embodiment, an image can be searched in a short time as in the second embodiment.

<Fourth Embodiment> In this embodiment, a rear end portion display function for displaying only the rear end portion of an image file is provided. In the control of the rear end portion display function of the present embodiment, the position of the rear end portion of the image data (the position of the image data corresponding to the square GBCH in FIG. 10A) is specified in S103, and the position is specified in S104. The only difference is that the part is read and the trailing end part read in S105 is displayed. The other processing is the same as the control of the head part display function of the second embodiment. Also in the present embodiment, an image can be searched in a short time as in the second embodiment.

<Fifth Embodiment> The image display apparatus of the present embodiment has a display function of thinning out and displaying image data, and this function speeds up image display.
The display function of the present embodiment is different from the second embodiment only in that an even address of image data is designated in S103, that part is read in S104, and the image data read in S105 is displayed. This is the same as the control of the form top part display function.

When displaying the image data read in S105, there are the following two methods. 1. 1. A method of setting an offset value and displaying it at the center of the screen of the display unit 6 (a display screen according to this method is, for example, as shown in FIG. 11). Method of Complementing Pixels at the Time of Display and Enlarging and Displaying Either of the above two methods may be adopted.

According to the method (2), it takes time to perform pixel complementation. However, since the amount of data to be read is reduced, the time required for display is shorter than that for displaying all images. Become. Therefore, image search can be performed in a short time. In addition, since the magneto-optical disk 14 generally has a low rotation speed and takes a long time for seeking, the reduction of the read data amount greatly contributes to the reduction of the display time.

The above-described second, third, and fourth embodiments can be combined with the fifth embodiment.

[0045]

According to the image display apparatus of the present invention, a target image file can be extracted accurately in a short time. In addition, since key information does not need to be added, when photographing is performed with a digital camera, the time and effort of key information addition can be saved.

[Brief description of the drawings]

FIG. 1 is a block diagram of an image display system including an image display device according to a first embodiment.

FIG. 2 is an external view of the image display system of FIG.

FIG. 3 is a schematic diagram of a data array in a memory card.

FIG. 4 is a schematic diagram of a data array in a magneto-optical disk.

FIG. 5 is a front view of the image display device.

FIG. 6 is a flowchart showing a state of an operation screen transition.

FIG. 7 is a detailed front view of the jog shuttle.

FIG. 8 is a schematic diagram of a data array in the magneto-optical disk according to the second embodiment.

FIG. 9 is a control flowchart according to the second embodiment.

FIG. 10 is a diagram showing an example of a display image according to the second embodiment.

FIG. 11 is a diagram showing an example of a display image according to the fifth embodiment.

[Explanation of symbols]

 Reference Signs List 1 image display device 2 ROM 3 RAM 4 data processing unit 5 graphic controller 6 display unit 7 operation unit 8 memory card 9 memory card slot 10 USB port 11 printer 12 magneto-optical disk drive interface 13 magneto-optical disk drive 14 magneto-optical disk 15 PC 16 RTC 17 Backup battery 18 Power supply 19 Flash memory 78 Jog shuttle

Claims (8)

[Claims] 1. An image display apparatus for displaying image data of an image recording medium on which a plurality of image files storing low-resolution image data and high-resolution image data is stored, wherein: An image display device comprising a display unit having a first display mode for sequentially displaying the image data. 2. The display device according to claim 1, further comprising a second display mode for sequentially displaying high-resolution image data of each image file, and a jog shuttle for performing an operation for designating the display mode. The image display device according to claim 1. 3. The image display apparatus according to claim 1, wherein said display means enlarges and displays low-resolution image data in a first display mode. 4. An image display device for displaying image data of an image recording medium on which a plurality of image files storing image data are recorded, wherein a display for displaying only a predetermined part of the image data of each image file is provided. An image display device comprising a display unit having a mode. 5. The image display device according to claim 4, wherein the predetermined part is a head part of the image data. 6. The image display device according to claim 4, wherein the predetermined part is a central part of the image data. 7. The image display device according to claim 4, wherein the predetermined part is a rear end part of the image data. 8. An image display device for displaying image data of an image recording medium in which a plurality of image files storing image data are recorded, the image display device having a display mode for thinning out and displaying image data of each image file. An image display device comprising a display unit.