CN102929956A - Image display method and device - Google Patents

Abstract

The present invention is applicable to the technical field of mobile terminals, and provides a method and device for displaying pictures, including: obtaining the positions of N pictures in the map, where N is an integer greater than 1; The distance of the location on the screen; display M picture categories in the map, the distance between every two pictures in each picture category is less than a preset threshold, and the M is an integer greater than or equal to 1 . The invention classifies and displays each picture according to the geographical position of the picture, so that the user can quickly locate and view the picture according to the geographical position, and greatly improves the picture browsing efficiency.

Description

Image display method and device

technical field

The invention belongs to the technical field of mobile terminals, and in particular relates to a picture display method and device.

Background technique

With the popularization of the camera function of mobile terminals, more and more users take pictures through mobile terminals, take pictures of wonderful moments or beautiful scenery in different locations, and keep the beautiful moments for slow aftertaste.

However, due to the increasing number of pictures, hundreds or even thousands of pictures are often randomly stored in the photo album, and these pictures are presented on the photo album in sequence according to the shooting time. It is necessary to search for the picture page by page by turning pages and traversing the photo album, which reduces the efficiency of picture browsing.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a method for displaying pictures, aiming to solve the problem that the existing cumbersome steps of searching for pictures lead to a decrease in the efficiency of picture browsing

The embodiment of the present invention is achieved in this way, a method for displaying pictures, comprising:

Get the positions of N pictures in the map, where N is an integer greater than 1;

Obtain the distance on the screen between the positions of the two pictures;

M picture categories are displayed on the map, the distance between every two pictures in each picture category is smaller than a preset threshold, and M is an integer greater than or equal to 1.

Another object of the embodiments of the present invention is to provide a device for displaying pictures, including:

A position acquisition unit, configured to acquire the positions of N pictures in the map, where N is an integer greater than 1;

a distance acquisition unit, which acquires the distance on the screen between the positions of each two pictures;

A display unit, configured to display M picture categories in the map, the distance between every two pictures in each picture category is less than a preset threshold, and M is an integer greater than or equal to 1.

The embodiment of the present invention classifies and displays each picture according to the geographical position of the picture, so that the user can quickly locate and view the picture according to the geographical position, and greatly improves the picture browsing efficiency.

Description of drawings

FIG. 1 is a flowchart of an implementation of a picture display method provided by an embodiment of the present invention;

FIG. 2 is a specific implementation flowchart of step S101 of the picture display method provided by the embodiment of the present invention;

Fig. 3 is a structural block diagram of a picture display device provided by an embodiment of the present invention.

Fig. 4 is a structural block diagram of a picture display device provided by another embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The purpose of the present invention is to solve the deficiencies in the prior art, to provide a way to browse pictures based on the shooting location, and to classify and display each picture according to the geographical location of the picture, so that users can quickly locate and view according to the geographical position. pictures, thereby greatly improving the efficiency of picture browsing.

Figure 1 shows the implementation process of the image display method provided by the embodiment of the present invention, which is described in detail as follows:

In step S101, the positions of N pictures in the map are obtained, where N is an integer greater than 1.

In this embodiment, the location of the picture in the map can be obtained by calling the application programming interface (Application Programming Interface, API) of the preset map to read the information of the map database.

FIG. 2 shows a specific implementation flowchart of step S101 of the image display method provided by an embodiment of the present invention, which is described in detail as follows:

In step S201, the latitude and longitude carried in the picture is acquired.

In this embodiment, when taking a picture, the GPS information of the shooting location can be written into the picture according to the GPS function of the shooting device, so that the corresponding latitude and longitude information can be obtained from the picture, including longitude coordinates and latitude coordinates. Preferably, the processing format is a picture of the Joint Photographic Experts Group (joint Photographic Experts Group), the mobile terminal can obtain the latitude and longitude value of the current shooting location through the network or GPS, and the latitude and longitude value can be directly written into the header of the JPEG image file when saving the photograph The specific part can be modified by modifying the underlying camera driver, or modifying the application program of the camera.

In step S202, the position of the picture in the map is acquired according to the latitude and longitude of the picture.

When scanning a picture file, it will analyze the latitude and longitude mark of the picture, convert it to the coordinates of the screen through projection transformation and seven-parameter conversion, and draw the position of the picture on the map on the screen. The specific implementation method is a known technology and will not be done here. repeat.

As another embodiment of the present invention, a control may also be provided for the user to input the position of the picture, so as to obtain the position of the picture input by the user in the map.

In step S102, the distance on the screen between the positions of every two pictures is acquired.

As an embodiment of the present invention, the coordinate calculation of the plane may be performed according to the screen coordinates of every two pictures to obtain the screen distance between the two pictures on the screen. For example, the screen coordinates of picture A are (X1, Y1), and the screen coordinates of picture B are (X2, Y2), you can pass $\mathrm{AB}=\sqrt{{(x1-x2)}^2+{(Y1-Y2)}^2},$ Get the screen distance, where AB represents the distance between pictures A and B on the screen, X1 represents the screen abscissa of A, Y1 represents the screen ordinate of A, X2 represents the screen abscissa of B, and Y2 represents the screen ordinate of B.

As another embodiment of the present invention, the actual distance of the location where the two pictures were taken can be obtained according to the latitude and longitude carried in each two pictures, and the display distance of the two pictures on the screen can be obtained according to the product of the actual distance and the scaling factor . The process of obtaining the zoom factor can be specifically obtained by obtaining the screen size of the terminal in the terminal system, and obtaining the map area of the preset map and the scale 1 through the application programming interface. The scale 1 indicates the degree to which the preset map distance is reduced compared to the actual distance , in addition, the ratio of the display area of the screen map to the area of the preset map is taken as scale 2, which indicates the extent to which the map on the screen is smaller than the preset map, and the zoom factor is obtained by combining the product of scale 1 and scale 2.

In step S103, M picture categories are displayed on the map, the distance between every two pictures in each picture category is less than a preset threshold, and M is an integer greater than or equal to 1.

In this embodiment, a preset threshold is determined according to empirical values, and the preset threshold is a fixed screen distance, pictures smaller than the preset threshold are classified into one category, and at the same time, an identifier for the category display of the pictures is assigned. Because the positions of the pictures may be at the same distance on the screen, the corresponding relationship between pictures and picture categories is one-to-many. For example, for pictures taken at the junction of Guangdong Province and Hunan Province, the picture category is both Guangdong Province and Hunan Province. The pictures of each category are associated with the corresponding logo and stored in the local file, so as to establish the link relationship between the pictures of each category and the logo. Preferably, the identification can be stored as an index for easy reading.

As a preferred embodiment of the present invention, M category identifiers are displayed on the map, and each category identifier uniquely identifies a picture category, and is used for being clicked by a user to view pictures in the picture category. There is a one-to-one correspondence between image categories and category identifiers, and the display methods of category identifiers include but are not limited to buttons, characters, and pictures. Preferably, the category identifier is a place identifier, and the location in the map where the category identifier is read is read through the API to obtain the name.

As another embodiment of the present invention, different screens may have different resolutions. Therefore, the distance between two adjacent pixels can be calculated by obtaining the screen size and screen resolution of the terminal. The number of pixels is obtained by dividing the distance between the positions of the two pictures on the screen by the distance between two adjacent pixel points. Therefore, even mobile terminals with different resolutions can realize unified picture classification and display. At this time, the preset threshold is a fixed pixel value, and if the number of the pixels is compared with the preset fixed pixel value, if it is not greater than the preset fixed pixel value, it is classified into one category.

As a preferred embodiment of the present invention, when the user zooms the map on the same screen, the position of the picture on the screen will change, so the distance between the screen coordinates of the two pictures will also change. Computed to display image categories. Specifically, by setting a zoom control, when it is detected that the user is zooming in on the map, the pictures are classified and displayed again.

When the user finishes loading the map, by triggering the category identification displayed on the map, set the image of the same category as the data source, and the background loading thread loads the data source. and displayed for users to browse.

Through the above steps, each picture is classified and displayed according to the geographical position of the picture, so that the user can quickly locate and view the picture according to the geographical position, thereby greatly improving the picture browsing efficiency.

Figure 3 shows a structural block diagram of a picture display device provided by an embodiment of the present invention, which can run on various terminals, including but not limited to mobile phones, pocket computers (Pocket Personal Computer, PPC), palmtop computers, computers, notebooks Computers, personal digital assistants (Personal Digital Assistant, PDA), computers and other terminals with built-in cameras. For ease of description, only the parts related to this embodiment are shown.

Referring to Figure 3, the device includes:

The position acquiring unit 31 is configured to acquire the positions of the N pictures in the map, where N is an integer greater than 1.

The distance acquiring unit 32 is configured to acquire the distance on the screen between the positions of each two pictures.

The display unit 33 is configured to display M picture categories in the map, and the distance between every two pictures in each picture category is less than a preset threshold, wherein M is an integer greater than or equal to 1.

Specifically, referring to FIG. 4, the position acquisition unit 31 includes:

The latitude and longitude acquisition subunit 311 acquires the latitude and longitude identification carried in the picture;

The position acquisition subunit 312 acquires the position of the picture on the map according to the latitude and longitude identification of the picture.

Optionally, the position acquiring unit 31 is specifically configured to acquire the position of the picture input by the user in the map.

Specifically, the display unit 33 is specifically configured to display M category identifiers on the map, each category identifier uniquely identifies a picture category, and is used for being clicked by the user to view the pictures in the picture category.

Specifically, the category identifier in the device is a location identifier.

The embodiment of the present invention classifies and displays each picture according to the geographical position of the picture, so that the user can quickly locate and view the picture according to the geographical position, and greatly improves the picture browsing efficiency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. an image display method is characterized in that, comprising:

Obtain the position of N pictures in map, described N is the integer greater than 1;

Obtain the distance of described position on screen of per two described pictures;

Show M picture classification in described map, the described distance of per two the described pictures in each described picture classification is less than predetermined threshold value, and described M is the integer more than or equal to 1.

2. the method for claim 1 is characterized in that, comprises in the position of the described N of obtaining pictures in map:

Obtain the longitude and latitude that carries in the described picture;

According to the described longitude and latitude of described picture, obtain the position of described picture in described map.

3. the method for claim 1 is characterized in that, comprises in the position of the described N of obtaining pictures in map:

Obtain the position of described picture in map of user's input.

4. the method for claim 1 is characterized in that, describedly shows that in described map M picture classification comprises:

Show M classification logotype in described map, described picture classification of each described classification logotype unique identification is used for being clicked to check the described picture of described picture classification by the user.

5. method as claimed in claim 4 is characterized in that, described classification logotype is the ground point identification.

6. an image display apparatus is characterized in that, comprising:

The position acquisition unit is used for obtaining the N pictures in the position of map, and described N is the integer greater than 1;

Distance acquiring unit is obtained the distance of described position on screen of per two described pictures;

Display unit is used for showing M picture classification at described map that the described distance of per two the described pictures in each described picture classification is less than predetermined threshold value, and described M is the integer more than or equal to 1.

7. device as claimed in claim 6 is characterized in that, described position acquisition unit comprises:

Obtain subelement through continuous degree, be used for obtaining the longitude and latitude that described picture carries;

The position acquisition subelement is used for the described longitude and latitude according to described picture, obtains the position of described picture in described map.

8. device as claimed in claim 6 is characterized in that, described position acquisition unit specifically is used for obtaining the described picture of user's input in the position of map.

9. device as claimed in claim 8, it is characterized in that, described display unit specifically is used for showing M classification logotype at described map, and described picture classification of each described classification logotype unique identification is used for being clicked to check the described picture of described picture classification by the user.

10. device as claimed in claim 9 is characterized in that, described classification logotype is the ground point identification.

Images