CN106874285B - Photo file processing method and terminal equipment - Google Patents

Abstract

The invention discloses a photo file processing method and terminal equipment, wherein the method comprises the following steps: acquiring a photo file, wherein the photo file at least comprises image data; sequentially reading M-bit image data from the image data, wherein M is an integer greater than or equal to 1; inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result; and obtaining a compressed file corresponding to the photo file after reading all the image data of the photo file, and deleting the photo file.

Description

A photo file processing method and terminal device

technical field

The invention relates to a time slot management technology in the field of network management, in particular to a photo file processing method and a terminal device.

Background technique

Terminal devices, especially intelligent mobile terminals, have become very popular, and the usage rate of the camera function in mobile terminal applications is relatively high. The function of the terminal camera is a major selling point of many mobile phone manufacturers, such as higher and higher pixels, more and more functions, and continuous shooting. Most people like to take continuous shots when traveling or traveling, and as the pixels become higher and higher, the photos generated by taking pictures become larger and larger. Most mobile phones currently on the market have cameras that can reach 13 million pixels. The photos taken can be very clear to the level of professional cameras. At the same time, the terminal camera application directly saves the photos to the SD card or memory card after taking the photos. Generally, JPEG or other technologies are used for storage, which is about 4MB.

In the prior art, in the continuous shooting of mobile terminals, JPEG or other formats are directly used for storage, and many existing terminals cannot be added for extended storage, and the continuous shooting photos are generally more than 10. Shooting takes up a lot of storage. If you press 4MB for one shot, then a continuous shooting requires 40MB or more of storage space. It can be seen that the prior art does not compress photos efficiently, thus wasting the storage space of the device.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a photo file processing method and terminal device, which can at least solve the above problems existing in the prior art.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

An embodiment of the present invention provides a photo file processing method, the method includes:

Obtaining a photo file, the photo file at least includes image data;

Read M-bit image data sequentially from the image data, where M is an integer greater than or equal to 1;

Perform a query in the database based on the M-bit image data, and perform a processing operation based on the query result; wherein, the processing operation includes: if the query result is that the same M-bit image data is stored in the database, obtaining the The identification information of the M-bit image data, and the identification information is saved to the compressed file corresponding to the photo file; if the query result is that the same M-bit image data is not saved in the database, the M-bit image data is added. In the database, generate the identification information of the M-bit image data, and save the identification information to the compressed file corresponding to the photo file;

After reading all the image data of the photo file, a compressed file corresponding to the photo file is obtained, and the photo file is deleted.

An embodiment of the present invention provides a terminal device, including:

a reading unit, configured to obtain a photo file, the photo file includes at least image data;

a processing unit, configured to sequentially read M-bit image data from the image data, where M is an integer greater than or equal to 1; query the database based on the M-bit image data, and perform processing operations based on the query result; if the query result In order to save the same M-bit image data in the database, the identification information of the M-bit image data is obtained, and the identification information is saved to the compressed file corresponding to the photo file; if the query result is that the database The same M-bit image data is not stored, then the M-bit image data is added to the database, the identification information of the M-bit image data is generated, and the identification information is saved to the compressed file corresponding to the photo file; After reading all the image data of the photo file, the compressed file corresponding to the photo file is obtained, and the photo file is deleted;

The database is used to save image data and its corresponding identification information.

The embodiments of the present invention provide a photo file processing method and a terminal device. The image data in the photo file is read according to a preset step size, and then based on the read image data and the data stored in the database, only the data stored in the database is compared. The unsaved part of the image data is added and stored in the database, and only the identification information corresponding to each part of the image data is stored in the compressed file corresponding to the photo file. In this way, the user is prevented from saving repeated content in multiple photos with repeated content for multiple times, which realizes more effective compression of the photo files, and saves the storage space of the terminal device.

Description of drawings

1 is a schematic flow chart 1 of a method for processing a photo file according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a scenario according to an embodiment of the present invention;

3 is a second schematic flowchart of a method for processing a photo file according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a composition structure of a terminal device according to an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Embodiment 1.

An embodiment of the present invention provides a photo file processing method, as shown in FIG. 1 , including:

Step 101: obtaining a photo file, where the photo file at least includes image data;

Step 102: Read M-bit image data sequentially from the image data, where M is an integer greater than or equal to 1;

Step 103: query the database based on the M-bit image data, and perform a processing operation based on the query result; wherein, the processing operation includes: if the same M-bit image data is stored in the database, obtaining all the data. The identification information of the M-bit image data, and the identification information is saved to the compressed file corresponding to the photo file; if the same M-bit image data is not saved in the database, then the M-bit image data is added to the In the database, generate the identification information of the M-bit image data, and save the identification information to the compressed file corresponding to the photo file;

Step 104: After reading all the image data of the photo file, obtain a compressed file corresponding to the photo file, and delete the photo file.

The method described in this embodiment can be applied to a terminal device with an image acquisition function. The photo file in this embodiment may be one photo among multiple photos obtained by continuous shooting.

In this embodiment, the photo file further includes: description information of the photo file; wherein, the size of the description information of the photo file is fixed, so only the image data part is processed in this embodiment. In addition, the description information of the file is directly obtained according to the specific specification of the file format.

Correspondingly, the method further includes: establishing a compressed file corresponding to the picture file, and adding description information of the photo file to the compressed file.

The image data may be binary data.

Further, the sequentially reading M-bit image data from the image data may include:

Convert the binary image data into hexadecimal N-bit image data, where N is an integer greater than or equal to 1;

M-bit image data is sequentially read from the hexadecimal N being image data.

It can be understood that, in addition to being greater than or equal to 1, M is also preset as an integer less than or equal to N.

The database is used for storing photo content and establishing identification information (ID) codes for the content, including two columns of data of ID and data content, wherein the ID code is similar to the self-incrementing primary key of the database and cannot be repeated, and the automatic sequence is accumulated. The data content part Stores the actual data of the photo.

The method for generating identification information may be to add one to the currently existing maximum identification information to obtain new identification information as the generated identification information.

The sequential reading of M-bit image data from the image data; querying the database based on the M-bit image data, and performing processing operations based on the query results, including:

Read M is image data from the image data, query the database based on the M-bit image data, and perform processing operations based on the query result;

Determine whether there is unread image data in the image data, if so, continue to read M as image data, query the database based on the M-bit image data, and perform processing operations based on the query results; otherwise, determine Complete the read operation.

This embodiment also provides an operation for reading an image file, which may specifically include:

Get the compressed file;

Read at least one identification information in the compressed file one by one;

Based on the at least one identification information, extracting at least one set of M-bit image data corresponding to the at least one identification information from the database;

Combine the read at least one set of M-bit image data in sequence to obtain a photo file.

Wherein, the at least one group of M-bit image data to be read is combined in order to obtain a photo file, and also includes:

converting the at least one group of hexadecimal M-bit image data into at least one group of binary image data;

A photo file is obtained by combining at least one set of binary image data obtained after conversion in sequence.

The compressed file is a compressed file corresponding to each original photo file, and mainly stores the corresponding ID code after the original photo data is stored in the compressed database.

The correspondence between the photo files, the database, and the compressed files described in this embodiment can be as shown in FIG. 2 . There are two photo files, which are the first photo file and the second photo file. The image data in the photo file is converted into After binary, as shown in the figure; set M equal to 8, that is to say, extract 8-bit image data from the photo file each time to query in the database; assuming that the image data "12345670" is saved in the database, then directly extract the image data from it. The corresponding identification information "001" adds 001 to the compressed file one corresponding to the photo file one; extract "23157900" in the picture file one again, and find that the same data is not stored in the database, just generate identification information 002 in the database, and This part of the image data is added to the data content corresponding to 002. The processing method of the photo file 2 is the same as that of the photo file 1, and will not be repeated.

In addition, it can be understood that the deletion of the photo file in step 104 in this embodiment may be to delete the photo file every time an operation of traversing the photo file is completed; or, it may be to complete the connection where the photo file is located. After all the photo files obtained by shooting are processed, all the photo files obtained by continuous shooting are collectively deleted.

The specific compression process is shown in Figure 3:

Step 301: read the photo file;

Step 302: create a compressed file corresponding to the photo file;

Step 303: Obtain the description information length and image data of the file according to the photo file format;

Here, the file format consists of two parts: file description information and specific image data;

The size of the description information of the file is fixed, so in this embodiment, only the data part is digitally re-encoded, the description information of the file is directly obtained according to the specific specification of the file format, and the obtained data is converted into hexadecimal system Encoding, according to the encoding query database to determine whether the photo file has been stored, if there is, the ID is saved in the compressed file, if not, the data content is saved in the database, and the ID code is automatically generated.

Step 304: read the binary image data of the original photo file with a preset step size M, convert the read image data into hexadecimal code, and use the hexadecimal code to query the database for the existence of the same data content, If it exists, go to step 305; otherwise, go to step 306;

Step 305: Save the identification information corresponding to the data content, such as an ID number, into a compressed file, and execute Step 307;

Step 306: save the hexadecimal code into the database and generate identification information in sequence, and then perform step 305;

Step 307: determine whether the reading of the current photo data content is completed; if not, return to step 304; if completed, execute step 308;

Step 308: Start to compress other files, delete the original photos after all the files are completed, and complete the compression of the burst photos.

It can be seen that by adopting the above scheme, the image data in the photo file can be read according to the preset step size, and then based on the read image data and the data stored in the database, only the unsaved part in the database is compared. The image data is added and stored in the database, and only the identification information corresponding to each part of the image data is stored in the compressed file corresponding to the photo file. In this way, the user is prevented from saving repeated content in multiple photos with repeated content for multiple times, which realizes more effective compression of the photo files, and saves the storage space of the terminal device.

Embodiment two,

An embodiment of the present invention provides a terminal device, as shown in FIG. 4 , including:

a reading unit 41, configured to obtain a photo file, where the photo file at least includes image data;

The processing unit 42 is configured to sequentially read M-bit image data from the image data, where M is an integer greater than or equal to 1; query the database based on the M-bit image data, and perform processing operations based on the query results; The result is that the same M-bit image data is stored in the database, then the identification information of the M-bit image data is obtained, and the identification information is saved to the compressed file corresponding to the photo file; if the query result is the database. The same M-bit image data is not stored in the M-bit image data, then the M-bit image data is added to the database, the identification information of the M-bit image data is generated, and the identification information is saved to the compressed file corresponding to the photo file ; After reading all the image data of the photo file, obtain the corresponding compressed file of the photo file, and delete the photo file;

The database 43 is used to save image data and its corresponding identification information.

The photo file in this embodiment may be one photo among multiple photos obtained by continuous shooting.

In this embodiment, the photo file further includes: description information of the photo file; wherein, the size of the description information of the photo file is fixed, so only the image data part is processed in this embodiment. In addition, the description information of the file is directly obtained according to the specific specification of the file format.

Correspondingly, the processing unit is configured to create a compressed file corresponding to the picture file, and add description information of the photo file to the compressed file.

The image data may be binary data.

Further, the processing unit is configured to convert the binary image data into hexadecimal N-bit image data, where N is an integer greater than or equal to 1; from the hexadecimal N-bit image data, M-bit image data is sequentially read.

It can be understood that, in addition to being greater than or equal to 1, M is also preset as an integer less than or equal to N.

The database is used for storing photo content and establishing identification information (ID) codes for the content, including two columns of data of ID and data content, wherein the ID code is similar to the self-incrementing primary key of the database and cannot be repeated, and the automatic sequence is accumulated. The data content part Stores the actual data of the photo.

The method for generating identification information may be to add one to the currently existing maximum identification information to obtain new identification information as the generated identification information.

The sequential reading of M-bit image data from the image data; querying the database based on the M-bit image data, and performing processing operations based on the query results, including:

Read M is image data from the image data, query the database based on the M-bit image data, and perform processing operations based on the query result;

Determine whether there is unread image data in the image data, if so, continue to read M as image data, query the database based on the M-bit image data, and perform processing operations based on the query results; otherwise, determine Complete the read operation.

This embodiment also provides an operation of reading an image file, the processing unit is configured to obtain a compressed file after deleting the photo file; read at least one identification information in the compressed file one by one; based on the at least one identification information, extracting at least one group of M-bit image data corresponding to the at least one identification information from the database; combining the read at least one group of M-bit image data in order to obtain a photo file.

The processing unit is used to convert the at least one group of hexadecimal M-bit image data into at least one group of binary image data; combine the at least one group of binary image data obtained after the conversion in order to obtain a photo file .

The compressed file is a compressed file corresponding to each original photo file, and mainly stores the corresponding ID code after the original photo data is stored in the compressed database.

The correspondence between the photo files, the database, and the compressed files described in this embodiment can be as shown in FIG. 2 . There are two photo files, which are the first photo file and the second photo file. The image data in the photo file is converted into After binary, as shown in the figure; set M equal to 8, that is to say, extract 8-bit image data from the photo file each time to query in the database; assuming that the image data "12345670" is saved in the database, then directly extract the image data from it. The corresponding identification information "001" adds 001 to the compressed file one corresponding to the photo file one; extract "23157900" in the picture file one again, and find that the same data is not stored in the database, just generate identification information 002 in the database, and This part of the image data is added to the data content corresponding to 002. The processing method of the photo file 2 is the same as that of the photo file 1, and will not be repeated.

In addition, it can be understood that the processing unit in this embodiment may delete the photo file every time the operation of traversing the photo file is completed once; After the photo files are processed, all the photo files obtained by continuous shooting will be deleted together.

It can be seen that by adopting the above scheme, the image data in the photo file can be read according to the preset step size, and then based on the read image data and the data stored in the database, only the unsaved part in the database is compared. The image data is added and stored in the database, and only the identification information corresponding to each part of the image data is stored in the compressed file corresponding to the photo file. In this way, the user is prevented from saving repeated content in multiple photos with repeated content for multiple times, which realizes more effective compression of the photo files, and saves the storage space of the terminal device.

If the integrated modules described in the embodiments of the present invention are implemented in the form of software function modules and sold or used as independent products, they may also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of software products in essence or the parts that make contributions to the prior art. The computer software products are stored in a storage medium and include several instructions for A computer device (which may be a personal computer, a base station, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes . As such, embodiments of the present invention are not limited to any particular combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (10)

1. a photo file processing method, is characterized in that, described method comprises: Obtaining a photo file, the photo file at least includes image data; Read M-bit image data sequentially from the image data, where M is an integer greater than or equal to 1; Perform a query in the database based on the M-bit image data, and perform a processing operation based on the query result; wherein, the processing operation includes: if the query result is that the same M-bit image data is stored in the database, obtaining the The identification information of the M-bit image data, and the identification information is saved to the compressed file corresponding to the photo file; if the query result is that the same M-bit image data is not saved in the database, the M-bit image data is added. In the database, generate the identification information of the M-bit image data, and save the identification information to the compressed file corresponding to the photo file; After reading all the image data of the photo file, a compressed file corresponding to the photo file is obtained, and the photo file is deleted. 2. The method according to claim 1, wherein the sequentially reading M-bit image data from the image data comprises: Convert binary image data to hexadecimal N-bit image data, where N is an integer greater than or equal to 1; From the N-bit image data in the hexadecimal system, M-bit image data is sequentially read. 3. The method according to claim 1, wherein the photo file further comprises: description information of the photo file; Correspondingly, the method further includes: A compressed file corresponding to the photo file is created, and description information of the photo file is added to the compressed file. 4. The method according to any one of claims 1-3, wherein after the deletion of the photo file, the method further comprises: Get the compressed file; Read at least one identification information in the compressed file one by one; Based on the at least one identification information, extracting at least one set of M-bit image data corresponding to the at least one identification information from the database; Combine the read at least one set of M-bit image data in sequence to obtain a photo file. 5. The method according to claim 4, wherein the at least one group of M-bit image data that will be read is combined in order to obtain a photo file, comprising: converting the at least one group of hexadecimal M-bit image data into at least one group of binary image data; A photo file is obtained by combining at least one set of binary image data obtained after conversion in sequence. 6. A terminal device, comprising: a reading unit, configured to obtain a photo file, the photo file includes at least image data; a processing unit, configured to sequentially read M-bit image data from the image data, where M is an integer greater than or equal to 1; query the database based on the M-bit image data, and perform processing operations based on the query result; if the query result In order that the same M-bit image data is stored in the database, the identification information of the M-bit image data is obtained, and the identification information is saved to the compressed file corresponding to the photo file; if the query result is that in the database The same M-bit image data is not stored, then the M-bit image data is added to the database, the identification information of the M-bit image data is generated, and the identification information is saved to the compressed file corresponding to the photo file; After reading all the image data of the photo file, the compressed file corresponding to the photo file is obtained, and the photo file is deleted; The database is used to save image data and its corresponding identification information. 7. The terminal device according to claim 6, wherein the processing unit is used to convert binary image data into N-bit image data in hexadecimal, where N is an integer greater than or equal to 1; In the hexadecimal N-bit image data, M-bit image data is sequentially read. 8. The terminal device according to claim 6, wherein the processing unit is configured to create a compressed file corresponding to the photo file, and add description information of the photo file to the compressed file; wherein, the The described photo file also includes: description information of the photo file. 9 . The terminal device according to claim 6 , wherein the processing unit is configured to obtain a compressed file after deleting the photo file; read at least one of the compressed files one by one. 10 . an identification information; based on the at least one identification information, extract at least one group of M-bit image data corresponding to the at least one identification information from the database; the read at least one group of M-bit image data, in order Combine to get photo files. 10. The terminal device according to claim 9, wherein the processing unit is configured to convert the at least one group of hexadecimal M-bit image data into at least one group of binary image data; The obtained at least one set of binary image data is combined in sequence to obtain a photo file.

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