TWI537754B - Method for displaying and managing image file - Google Patents

Description

Image file display method and group management method

The invention relates to a method for managing an image file, in particular to a group management method and a display method for an image file.

The Geographic Information System (GIS) is a comprehensive discipline that combines geography and cartography and has been widely used in different fields. It is a computer system for inputting, storing, querying, analyzing and displaying geographic data. Geographic information systems are a class of information systems that can process geo-referenced data, where geo-referenced data describes the location and properties of spatial elements on the Earth's surface (eg, the atmosphere and shallower subsurface space), which can be divided into spatial data. And attribute data. The spatial data contains legends and objects of points, lines or faces related to the position, while the attribute data describes the connotation and information of the objects and legends.

The maps used in GIS may be bitmap or vector images, often containing multiple regions, as well as objects such as buildings and roads. With the increasing frequency of human activities and communication, the information recorded in geo-referenced data has risen sharply, and the memory required for it has become larger and larger, and the increase in file size tends to lengthen the processing time of data. , resulting in the decline in the efficiency of the operation of the geographic information system and the inconvenience in use.

Embodiments of the present invention provide a method for displaying an image file and a group management method for improving the speed of displaying and processing an image file, and further improving the operational efficiency and practical value of the geographic information system.

According to an embodiment of the present invention, a method for displaying an image file is provided, which includes receiving an image file and dividing the image file into a plurality of image regions according to the division setting. Then, for the image file, an image group management layer is generated, wherein the image group management layer records the attribute data common to the image area of the image file. Then, the plurality of area data respectively corresponding to the image areas are recorded in the image group management layer.

The method further includes the step of receiving an instruction to the user to view a particular area of the image file. After receiving the user's viewing instruction, the coordinates of the specific area are compared with the area data of the image areas to find the image area covered by the specific area. Then, the image file in the image area covered by the specific area is read, and the image file in the read image area is stored in the temporary memory. Then, the image file stored in the temporary storage memory is used to apply the attribute data recorded in the image group management layer, and the image file of the attribute data is displayed for the user to watch.

According to another embodiment of the present invention, a method for group management of an image file is provided, the method comprising: receiving an image file, and dividing the image file into a plurality of image regions according to the dividing setting; generating an image group for the image file The management layer, wherein the image group management layer records the attribute data common to the image area of the image file; and records the plurality of area data corresponding to the image areas respectively in the image group management layer.

By dividing the image file into regions, the time required for image file processing can be reduced, and the efficiency and practical value of the image file display can be improved.

The above summary and the following examples are intended to be illustrative of the invention and the embodiments of the invention.

Please refer to FIG. 1. FIG. 1 is a block diagram showing an embodiment of an image file processing apparatus according to the present invention. The image file processing device 10 includes a display processing unit 11, an image processing unit 13, a storage unit 15, and a display unit 17, wherein the image processing unit 13, the storage unit 15, and the display unit 17 are electrically connected to the display processing unit 11. The image file processing device 10 can be implemented by a general computer system, such as an industrial computer or other kinds of server hosts.

When the image file (such as a map or a graphic file of a vector) is input to the image file processing device 10, it is sent to the image processing unit 13 for image processing, and is transferred to the storage unit 15 for storage. After receiving the image file, the image processing unit 13 divides the image file into a plurality of image regions according to a preset division setting. For example, the division setting may be an area division method for defining an image file, such as dividing the image file into 4 by 4, 8 by 8 or any other ratio set according to actual needs, or even the above-mentioned divided image. The area may be an image area of an arbitrary polygon, which is not limited herein. In addition, the image file managed by the image group management layer may be a general bitmap or some vector map, such as a file in the Sharpe file format.

After dividing the image file into a plurality of image regions, the image processing unit 13 stores the information of the divided image regions in a certain memory block of the storage unit 15 to generate an image group management layer and manage the image. The layer is transferred to the display processing unit 11. The attribute data of the image file recorded in the image group management layer, that is, the attribute data common to the image areas, such as transparency, background color and pattern, image processing style, and display scale range, etc., can be used To apply attributes when you need to display image files in these image areas. The above picture processing style refers to some image display effects, such as image display material, lighting effect, color tone adjustment, color correction, etc., and the display scale range indicates that the image file can be displayed within the range of scale. .

The image group management layer not only records the attribute data common to the image areas, but also includes different area data of each image area, wherein the area data may include each of the divided image areas corresponding to the image file. The area coordinates, that is to say, the area data can record which blocks of the original image file are included in each image area. In another embodiment, the image processing unit 13 may also cut the image file into a plurality of image sub-files according to the image areas, and the area data in the image group management layer records each image area corresponding to Image sub-file.

It is worth mentioning that by providing the foregoing image group management layer, the user can change the attributes of the plurality of image areas or image sub-files at the same time by changing the setting of the attribute data of the image group management layer. Individual settings are made for each image area or image sub-file, making group management of images more convenient. Moreover, the division of the image area recorded by the image group management layer and the attribute data may cause the display processing unit 11 to read only the image file of the part to be observed by the user when displaying the image file, and display the portion to be displayed. The image file quickly applies attribute data, which can improve the speed of display processing.

As an implementation example, when the user wants to view the image file, the display processing unit 11 receives an instruction of the user to input a specific area of the image file, and compares the coordinates of the specific area with the area data, that is, The coordinates of the specific area are compared with the coordinates of the aforementioned image area to find the image area covered by the specific area.

After the image processing area 11 determines that the image area is covered by the specific area, the display processing unit 11 reads the partial image file or the image sub-file corresponding to the determined image area from the storage unit 15 and reads the read part. The image file or the image sub-file is stored in the temporary memory 111. Then, the display processing unit 11 applies the recorded partial image file or the image sub-file to the attribute data recorded in the image group management layer, and transmits part of the image file or image sub-file after applying the attribute data to the display. Unit 17 is displayed for viewing by the user. That is to say, the image files or image sub-files managed by the same image group management layer are all displayed by the same attribute data.

In this way, the display processing unit 11 performs display by replacing only the image file of the portion covered by the specific area, instead of the method of reading the entire image file for display, thereby reducing the display processing. The time spent further enhances the efficiency of image display.

Referring to FIG. 2 and FIG. 1 together, FIG. 2 is a flowchart of an embodiment of a group management method for video files according to the present invention. The group management method includes: the image processing unit 13 receives the image file (S101), and divides the image file into a plurality of image regions according to the preset division setting (S103), wherein the division setting is used to define the division of the image region. The method, such as the ratio of the image area to the image file, or the shape of the image area, is not particularly limited herein. Then, for the image file, the image processing unit 13 stores the information of the image area in the storage unit 15 to generate an image group management layer (S105), that is, the attribute data common to the image area of the image file and the corresponding information. A plurality of area data of the image areas are recorded in the image group management layer (S107). The generated image group management layer is transmitted to the display processing unit 11.

The attribute data may be transparency, background color and pattern, picture processing style, display scale range, etc., and the area data records the area coordinates of each image area corresponding to the image file. In addition, the group management method of the image file may further include: the step of the image processing unit 13 cutting the image file into a plurality of image sub-files according to the divided image regions, and cutting the image sub-files and the image regions. The correspondence is also recorded in the image group management layer. It is worth mentioning that by dividing the image file into multiple image areas, even if the image file is cut into multiple image sub-files and the division result is recorded in the image group management layer, the display area can be displayed at the time of display. Judging and selectively reading the image file block or part of the image sub-file of the part to be displayed, thus improving the speed of image processing.

Please refer to FIG. 3. FIG. 3 is a flowchart of an embodiment of a method for displaying an image file according to the present invention. The step of the display method includes: the display processing unit 11 receives an instruction of the user to view a specific area of the image file (S201), and compares the coordinates of the specific area with the area data of the image areas (S203), To find the image areas covered by the specific area, wherein the area data of the image areas is recorded in the image group management layer.

Then, the display processing unit 11 reads a part of the image file or the image sub-file represented by the image area covered by the specific area from the storage unit 15 (S205), and stores the read image file or the image sub-file. The temporary storage memory 111 of the display processing unit 11 is displayed (S207). Then, the display processing unit 11 applies the image file or the image sub-file stored in the temporary memory 111 to the attribute data of the image group management layer (S209), and transmits the image file or the image sub-file of the attribute data. Display is performed to the display unit 17 (S211) for viewing by the user. That is to say, according to the comparison of the coordinates of the image area and the coordinates recorded by the image group management layer, the display processing unit 11 may not need to read the entire image file, and only need to read some image files that need to be displayed. This can reduce the time required for display processing to improve display efficiency.

In addition, the display method of the image file may further include: the display processing unit 11 repeatedly and continuously compare the coordinates of the specific area with the area data. If the comparison result shows that the specific area does not exceed the read image area, the display unit 17 continues to display the part of the image file or the image sub-file that has been read, and if the specific area exceeds the range of the previously read image area, The display processing unit 11 then reads a part of the image files or image sub-files represented by the image areas covered by the specific area, and stores the read image files or image sub-files in the temporary storage memory 111.

Please refer to FIG. 4. FIG. 4 is a schematic diagram of an embodiment of region division of an image file. The image group management layer 21 in this embodiment divides the image file into 4 by 4 image areas 23, and each image area 23 can be further divided into a plurality of image sub-areas 25, and then each image Sub-region 25 then corresponds to the actual picture 31, that is, part of the image file or image sub-file. That is to say, the division of the image area of the image file may be divided only once as described above, or may be divided into multiple levels as described in the embodiment of FIG. 4, which is not limited herein. Similarly, by modifying the attribute data of the top-level image group management layer 21, the user can modify the attributes of all lower-level image layers together, so as to manage the records recorded in the image layer 21 through the image group. The image area division and the attribute data can selectively read some of the image files to be displayed when displaying the image file, and can apply the attributes relatively quickly to improve the display processing speed.

By providing an image group management layer to record the area division of the image file and managing the common settings, and by reading only the image files of the image areas to be displayed during display, the efficiency of the image display processing can be improved.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the invention.

10. . . Image file processing device

11. . . Display processing unit

111. . . Scratch memory

13. . . Image processing unit

15. . . Storage unit

17. . . Display unit

twenty one. . . Image group management layer

23‧‧‧Image area

25‧‧‧Image subregion

31‧‧‧ Pictures

S101~S107‧‧‧ Flowchart Step Description

S201~S211‧‧‧ Flowchart Step Description

1 is a block diagram showing an embodiment of an image file processing apparatus of the present invention;

2 is a flow chart of an embodiment of a group management method for an image file according to the present invention;

3 is a flow chart of an embodiment of a method for displaying an image file of the present invention;

4 is a schematic diagram of an embodiment of region division of an image file.

S101～S107. . . Flow chart step description

Claims (9)

A method for displaying an image file is applied to a computer system, comprising: receiving an image file; dividing the image file into a plurality of image regions according to a division setting; storing the image regions of the image file in a storage The unit is configured to generate an image group management layer, wherein the image group management layer records an attribute data common to the image areas of the image file; and the plurality of area data corresponding to the image areas are respectively recorded in the image a group management layer, the area data includes an area coordinate corresponding to the image file; receiving an instruction of the user to view a specific area of the image file; and the coordinates of the specific area and the image area Comparing the regional data to find the image regions covered by the specific region; reading the image file represented by the image regions covered by the specific region, and reading the image The file is stored in a temporary storage memory; and the image file stored in the temporary storage memory is applied to the image group management The property data layer, and apply the attribute data of the image files will be displayed for the user to watch. The method for displaying an image file according to claim 1, further comprising: repeating a coordinate to the specific area and the area data; if the specific area does not exceed the read image areas, Continue to display the image file that has been read; and if the specific area exceeds the image areas that have been read, the reading is performed The image file represented by the image areas covered by the specific area is stored in the temporary storage memory. The method for displaying an image file according to claim 2, further comprising: deleting the image file that is not covered by the specific area from the temporary storage memory. The method for displaying an image file according to claim 1, wherein the attribute data includes a transparency, a background color and a pattern, a picture processing style, and a display scale range. The method for displaying an image file according to claim 1, further comprising: cutting the image file into a plurality of image sub-files according to the image regions. A group management method for image files is applied to a computer system, comprising: receiving an image file; dividing the image file into a plurality of image regions according to a division setting; storing the image regions of the image file in the image file a storage unit to generate an image group management layer, wherein the image group management layer records an attribute data common to the image areas of the image file; and a plurality of area data records corresponding to the image areas respectively In the image group management layer, the area data includes an area coordinate of the image area corresponding to the image file. The method for managing a group of image files according to claim 6, wherein the attribute data includes a transparency, a background color, and a pattern, An image processing style and a display scale range. The group management method of the image file according to claim 6, wherein the area data includes an area coordinate corresponding to the image file. The method for managing a group of image files according to claim 6 further includes: cutting the image file into a plurality of image sub-files according to the image areas.