JP2954587B2 - Display image management device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image management device for an image display device that combines a plurality of images and displays them as one screen. 2. Description of the Related Art Conventionally, in an image file device or an image processing device, a plurality of images of an arbitrary size are combined and displayed in one screen. At this time, some corners of the images may overlap depending on the display position of each image. Here, a plurality of image memories (frame memories composed of semiconductor memories) are provided, and one image is written in one image memory, and the contents of each image memory are sequentially superimposed on an arbitrary position in the screen when displayed. Supply to the display device. In this way, even if a part of the lower screen becomes invisible due to overlapping with another image, the original image is stored in the image memory. I was able to see the part that was no longer visible. However, this method requires the provision of a plurality of image memories, and has a complicated configuration and high cost. On the other hand, it is conceivable to store only one screen of image information synthesized by superimposition in one image memory. In this method, the image memory may have a capacity of one screen, and the cost is low. However, since the original image is not stored in the image memory, it is impossible to see the superimposed image which cannot be seen again, and it is also difficult to know what the image is. [Problems to be Solved by the Invention] As described above, in a conventional apparatus in which a plurality of images are superimposed and displayed as one screen, a plurality of image memories are required to reproduce the original image. However, there are disadvantages that the configuration is complicated and the cost is high. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a display image management apparatus capable of managing characteristic information of a display image of each section of a display screen with a simple configuration. [Means for Solving the Problems] FIG. 1 shows a conceptual diagram of the present invention. The display means 1 is for displaying an image, and displays image information in the image memory 2 as an image. The image memory 2 is a semiconductor memory (frame memory) that stores image information for one screen. The auxiliary storage means 5 is a large-capacity file memory using a magnetic medium or an optical medium for storing image information and attribute information associated therewith. In the image memory 2, a plurality of pieces of image information stored in the auxiliary storage means 5 are combined and stored as one screen. The image feature information storage means 4 changes the screen of the display means 1 to m × n
The feature information of the image displayed in each of the divided sections (m and n are arbitrary positive integers) is stored. Here, as the characteristic information, the address of the auxiliary storage unit 5 in which the image information of each section is stored is used. [Operation] The control unit 3 reads out desired image information from the auxiliary storage unit 5, superimposes and stores it at a predetermined position in the image memory 2, and causes the display unit 1 to display a plurality of images as one screen. As described above, the screen of the display unit 1 is divided into a plurality of sections, and an image is managed for each section. For example, as shown in FIG. 2, the screen is divided into 4 × 4 and 1/16 of one screen
It is assumed that an image is managed for each section (area ratio; length is 1/4 each in vertical and horizontal directions). The hatched portion in FIG.
, And 11A to 11D are examples of divided sections. Assuming that the storage address of the read image in the auxiliary storage means 5 is "5", the sections (0,0), (0,1), (1,0) in FIG. ), (1, 1), address information "5" is written in the storage area. By doing so, for example, when it is desired to know the feature information of the image displayed in the section (0,0) on the display screen, the area corresponding to (0,0) of the image feature information storage means 4 is set. When read, address "5" can be obtained. [Embodiment] An embodiment of a display image management apparatus according to the present invention will be described below with reference to the drawings. FIG. 3 is a block diagram of one embodiment. The image display 21 is for displaying an image, and the image information read from the image memory 23 is supplied through a D / A conversion circuit 22. The keyboard 24 is for the operator to give instructions for each process. The mouse 25 is a pointing device, and points to an image (section) displayed on the image display 21. The main memory 30 is used to temporarily hold information input from the keyboard 24. The optical disk device 29 corresponds to the auxiliary storage means in FIG. 1, and stores a plurality of pieces of image information. By the instruction from the keyboard 24, CPU2
Numeral 6 reads out image information from the optical disk device 29 via the optical disk device interface 28 and stores it in a predetermined position of the image memory 23. The screen of the image display 21 is 12 × as shown in FIG.
The image is divided into 12, and the characteristic information storage circuit 27 stores the characteristic information (the address of the optical disk device 29) of the image displayed in each section. When the screen is divided and managed unequally as shown in FIG. 4, 1/4, 1/16, 1/36 and 1/64 images (area ratio to the screen) can be managed. For example, 41A in FIG. 4 is 1/16, 41B is 1/36, 41C is 1/6.
4 is an example of an image having a size of 4. The feature information storage circuit 27 stores the feature information of each section using the coordinates (0,0) to (11,11) of 144 sections of 42A to 42D in FIG. The coordinate conversion circuit 31 calculates which section on the screen the coordinates indicated by the mouse 25 belong to.
Etc. The operation of this embodiment will be described with reference to the flowchart of FIG. Here, the operation when the original image B is reproduced from the image B in which the images C and D are displayed on the images A and B and only a part is displayed as shown in FIG. 5 will be described. First, the operator points out an image on the display screen where the original image is to be reproduced, for example, a part of the area of the image B with the mouse 25, and presses a switch of the mouse 25 (step S1). This is notified to the CPU 26 by an interrupt or the like, and the CPU 26 reads the register in the mouse 25 to know its coordinate value. Based on the obtained coordinate values, the coordinate conversion circuit 31 obtains section value coordinates, in this case (4, 5) (step S2). The feature information storage circuit 27 is configured as shown in FIG. 6, and stores an address corresponding to the coordinates of each section in the optical disc device 29 for storing image information displayed in the section. An optical disk address (feature information) “150” can be obtained for the section coordinates (4, 5) (step S3). The CPU 26 reads out the image information (image information of the image B) from the address “150” of the optical disk device 29 (step S4), and stores the image information in the position specified by the mouse 25 in the image memory 23 (step S5). Here, in FIG. 5, image B has another image C on it.
D is overlapped and only a part of the section is displayed. By designating a part of the displayed section with the mouse 25, the image B is displayed over the entire area, and the screen of the display 21 is changed to the eighth display. It looks like the figure. At this time, the image B in the feature information storage circuit 27 is
In the section (3,3) to (5,5) corresponding to the display area, the optical disk address “150” of the image B is written. As described above, according to this embodiment, in addition to the image memory that stores the image information corresponding to the display screen of the display unit, the characteristic information (for each image) A feature information storage circuit for storing information (storage address in the optical file device) is provided. For this reason, even if there is an image that is partially displayed by overlapping another image, the storage address of the image information is known, and the image information is read out from the optical disk device 29, so that it can be easily displayed on the display 21. Can be reproduced. [Effects of the Invention] As described above, according to the present invention, when a plurality of images are superimposed and displayed on one screen, the characteristic information of the display image in each section of the display screen is managed, thereby simplifying the operation. A display image management device capable of reproducing an original image with a simple configuration is provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a display image management apparatus according to the present invention, FIG. 2 is a diagram showing an example of division of a screen for managing display images,
FIG. 3 is a block diagram of a first embodiment of a display image management apparatus according to the present invention, FIG. 4 is a diagram showing an example of screen division according to the first embodiment, and FIG. 5 is an example of a display screen of the first embodiment. FIG. 6 is a diagram showing the internal configuration of the feature storage circuit. FIG. 7 is a flowchart showing the operation of the first embodiment. FIG. 8 is a diagram showing a part of the display screen of the first embodiment after reproduction. It is a figure showing an example. 1 ... Display means 2 ... Image memory 3 ... Control means 4 ... Image feature information storage means 5 ... Auxiliary storage means

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G09G 1/02 G09G 1/06 G06F 3/14

Claims (1)

(57) [Claims] Image information storage means for storing a large number of pieces of image information; image memory means for synthesizing and storing a predetermined number of pieces of image information read from the image information storage means as one image; Display means for displaying an output of the image memory means, and each section of the display means using, as characteristic information, address information in the image information storage means of image information stored in the image memory means. A feature information storage means for storing the information for each section; a section designation means for designating an arbitrary section of the screen of the display means; and feature information of the section designated by the section designation means read from the feature information storage means. Predetermined image information having information is read from the image information storage means and written into the image memory means, and the characteristic information of the characteristic information storage means is written. Display image management apparatus characterized by comprising a changing control means.