CN106874285B - Photo file processing method and terminal equipment - Google Patents
Photo file processing method and terminal equipment Download PDFInfo
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- CN106874285B CN106874285B CN201510920309.7A CN201510920309A CN106874285B CN 106874285 B CN106874285 B CN 106874285B CN 201510920309 A CN201510920309 A CN 201510920309A CN 106874285 B CN106874285 B CN 106874285B
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- G06F16/10—File systems; File servers
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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
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 terminal equipment.
Background
Terminal equipment, especially intelligent mobile terminals, have become very popular, and the usage rate of camera shooting function in mobile terminal application is relatively high. The terminal camera has a great selling point for many mobile phone manufacturers, such as higher and higher pixels, more and more functions, continuous shooting capability, and the like. Most people like continuous shooting when traveling or going out, and pictures generated by shooting with higher and higher pixels are larger and larger. The camera function pixels of most cell phones currently on the market can reach 1300 ten thousand pixels. The shot photos can clearly reach the level of a professional camera, and meanwhile, the terminal shooting application directly stores the photos into an SD card or a memory card after shooting the photos, and the photos are generally stored by JPEG (joint photographic experts group) or other technologies, and the storage capacity of the photos is about 4 MB.
In the prior art, JPEG or other formats are directly used for storage in continuous shooting of mobile terminals, most of the existing terminals cannot be added with extended storage, and continuous shooting of photos is generally more than 10, so that a large amount of storage is occupied in one continuous shooting, and according to one 4MB, 40MB or more storage space is needed in one continuous shooting. It can be seen that the prior art does not efficiently compress the photos, thereby wasting storage space on the device in question.
Disclosure of Invention
In view of the above, the present invention provides a method for processing a photo file and a terminal device, which can solve at least the above problems in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a photo file processing method, which 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; wherein the processing operation comprises: if the query result is that the same M-bit image data are stored in the database, acquiring identification information of the M-bit image data, and storing the identification information to a compressed file corresponding to a photo file; if the query result is that the same M-bit image data is not stored in the database, adding the M-bit image data into the database, generating identification information of the M-bit image data, and storing the identification information into a compressed file corresponding to a photo file;
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.
An embodiment of the present invention provides a terminal device, including:
the reading unit is used for acquiring a photo file, and the photo file at least comprises image data;
a processing unit for reading M-bit image data from the image data in sequence, 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; if the query result is that the same M-bit image data are stored in the database, acquiring identification information of the M-bit image data, and storing the identification information to a compressed file corresponding to a photo file; if the query result is that the same M-bit image data is not stored in the database, adding the M-bit image data into the database, generating identification information of the M-bit image data, and storing the identification information into a compressed file corresponding to a photo file; obtaining a compressed file corresponding to the photo file after reading all image data of the photo file, and deleting the photo file;
and the database is used for storing the image data and the corresponding identification information.
The embodiment of the invention provides a photo file processing method and terminal equipment, which are used for reading image data in a photo file according to a preset step length, then comparing the read image data with data stored in a database, only adding and storing partial image data which are not stored in the database into the database, and only storing identification information corresponding to each partial image data in a compressed file corresponding to the photo file. Therefore, the user can avoid storing the repeated contents in the photos with the repeated contents for many times, the more effective compression of the photo files is realized, and the storage space of the terminal equipment is saved.
Drawings
FIG. 1 is a first flowchart illustrating a photo file processing method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a second photo file processing method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The first embodiment,
An embodiment of the present invention provides a method for processing a photo file, as shown in fig. 1, including:
step 101: acquiring a photo file, wherein the photo file at least comprises image data;
step 102: sequentially reading M-bit image data from the image data, wherein M is an integer greater than or equal to 1;
step 103: inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result; wherein the processing operation comprises: if the same M-bit image data are stored in the database, acquiring identification information of the M-bit image data, and storing the identification information to a compressed file corresponding to a photo file; if the same M-bit image data is not stored in the database, adding the M-bit image data into the database, generating identification information of the M-bit image data, and storing the identification information into a compressed file corresponding to a photo file;
step 104: 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.
The method described in this embodiment can be applied to a terminal device with an image capturing function. In this embodiment, the photo file may be one of a plurality of photos obtained by continuous shooting.
In this embodiment, the photo file further includes: description information of the photo file; the size of the description information of the photo file is fixed, so that only the image data portion is processed in the 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 comprises the following steps: and establishing a compressed file corresponding to the picture file, and adding the description information of the picture file to the compressed file.
The image data may be binary data.
Further, the sequentially reading the M-bit image data from the image data may include:
converting the binary image data into N-bit image data in hexadecimal, wherein N is an integer greater than or equal to 1;
and sequentially reading M-bit image data from the hexadecimal N image data.
It is understood that M is preset to an integer of N or less in addition to 1 or more.
The database is used for storing photo content and establishing identification Information (ID) codes for the content, the ID codes comprise ID and data content two columns of data, the ID codes are similar to the self-increment keys of the database and can not be repeated, automatic sequential accumulation is carried out, and the data content part stores actual data of photos.
The method for generating the identification information may be to add one to the currently existing maximum identification information to obtain new identification information as the generated identification information.
Sequentially reading M-bit image data from the image data; inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result, wherein the processing operation comprises the following steps:
reading M image data from the image data, inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result;
judging whether unread image data exists in the image data, if so, continuing to read M as the image data, inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result; otherwise, it is determined that the read operation is completed.
The embodiment further provides an operation of reading an image file, which may specifically include:
acquiring a compressed file;
reading at least one piece of identification information in the compressed files one by one;
extracting at least one group of M-bit image data corresponding to the at least one identification information from the database based on the at least one identification information;
and combining the read at least one group of M-bit image data according to the sequence to obtain a photo file.
Wherein, the at least one group of M-bit image data that will read is made up according to the order and is got the photo file, still includes:
converting the at least one set of hexadecimal M-bit image data into at least one set of binary image data;
and combining at least one group of binary image data obtained after conversion according to the sequence to obtain a photo file.
The compressed file is a file corresponding to each original photo file after being compressed, and the corresponding ID code is mainly stored after the original photo data is stored in the compressed database.
In this embodiment, the correspondence between the photo file, the database, and the compressed file may be as shown in fig. 2, where there are two photo files, i.e., a photo file one and a photo file two, and the image data in the photo file is converted into a binary system and then is shown in the figure; setting M equal to 8, namely extracting 8-bit image data from the photo file to query in the database each time; if the database stores the image data '12345670', the corresponding identification information '001' is directly extracted from the database, and 001 is added into the compressed file one corresponding to the photo file one; "23157900" in the first picture file is extracted again, and if the database does not store the same data, the identification information 002 is generated in the database, and the partial image data is added to the data content corresponding to 002. The processing mode of the second photo file is the same as that of the first photo file, and is not described in detail.
In addition, it can be understood that, in the embodiment, the deleting the photo file in step 104 may delete the photo file for each time the operation of traversing the photo file is completed; alternatively, after the processing of all photo files obtained by continuous shooting of the photo files is completed, all the photo files obtained by continuous shooting may be deleted together.
The specific compression flow is shown in fig. 3:
step 301: reading a photo file;
step 302: creating a compressed file corresponding to the photo file;
step 303: acquiring the description information length and image data of a file according to the photo file format;
here, the file format is composed of two parts, file description information and specific image data;
the size of the description information of the file is fixed, so that only the data part is digitally recoded in the embodiment, the description information of the file is directly acquired according to the specific specification of the file format, the acquired data is converted into 16-system codes, the database is inquired according to the codes to judge whether the photo file exists, if so, the ID is stored in the compressed file, and if not, the data content is stored in the database, and the ID codes are automatically generated.
Step 304: reading binary image data of an original photo file according to a preset step length M, converting the read image data into 16-system codes, inquiring whether the same data content exists in a database by using the 16-system codes, and if so, executing a step 305; otherwise, go to step 306;
step 305: storing identification information corresponding to the data content, such as an ID number, in the compressed file, and performing step 307;
step 306: storing the 16-system code into a database and generating identification information according to the sequence, and then executing step 305;
step 307: judging whether the reading of the data content of the current photo is finished or not; if not, returning to the step 304; if so, go to step 308;
step 308: and starting to compress other files until all files are finished, and deleting the original photos to finish the compression of the continuously shot photos.
Therefore, by adopting the scheme, the image data in the photo file can be read according to the preset step length, then the comparison is carried out on the basis of the read image data and the data stored in the database, only the partial image data which is not stored in the database is added and stored in the database, and the identification information corresponding to each partial image data is stored in the compressed file corresponding to the photo file. Therefore, the user can avoid storing the repeated contents in the photos with the repeated contents for many times, the more effective compression of the photo files is realized, and the storage space of the terminal equipment is saved.
Example II,
An embodiment of the present invention provides a terminal device, as shown in fig. 4, including:
a reading unit 41, configured to acquire a photo file, where the photo file at least includes image data;
a processing unit 42, configured to sequentially read M-bit image data from the image data, where 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; if the query result is that the same M-bit image data are stored in the database, acquiring identification information of the M-bit image data, and storing the identification information to a compressed file corresponding to a photo file; if the query result is that the same M-bit image data is not stored in the database, adding the M-bit image data into the database, generating identification information of the M-bit image data, and storing the identification information into a compressed file corresponding to a photo file; obtaining a compressed file corresponding to the photo file after reading all image data of the photo file, and deleting the photo file;
and a database 43 for storing the image data and the corresponding identification information.
In this embodiment, the photo file may be one of a plurality of photos obtained by continuous shooting.
In this embodiment, the photo file further includes: description information of the photo file; the size of the description information of the photo file is fixed, so that only the image data portion is processed in the 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 establish a compressed file corresponding to the picture file, and add the description information of the picture file to the compressed file.
The image data may be binary data.
Further, the processing unit is configured to convert binary image data into hexadecimal N-bit image data, where N is an integer greater than or equal to 1; and sequentially reading M-bit image data from the N-bit image data in hexadecimal.
It is understood that M is preset to an integer of N or less in addition to 1 or more.
The database is used for storing photo content and establishing identification Information (ID) codes for the content, the ID codes comprise ID and data content two columns of data, the ID codes are similar to the self-increment keys of the database and can not be repeated, automatic sequential accumulation is carried out, and the data content part stores actual data of photos.
The method for generating the identification information may be to add one to the currently existing maximum identification information to obtain new identification information as the generated identification information.
Sequentially reading M-bit image data from the image data; inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result, wherein the processing operation comprises the following steps:
reading M image data from the image data, inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result;
judging whether unread image data exists in the image data, if so, continuing to read M as the image data, inquiring in a database based on the M-bit image data, and performing processing operation based on an inquiry result; otherwise, it is determined that the read operation is completed.
The embodiment further provides an operation of reading an image file, and the processing unit is configured to obtain a compressed file after deleting the photo file; reading at least one piece of identification information in the compressed files one by one; extracting at least one group of M-bit image data corresponding to the at least one identification information from the database based on the at least one identification information; and combining the read at least one group of M-bit image data according to the sequence to obtain a photo file.
The processing unit is used for converting the at least one group of hexadecimal M-bit image data into at least one group of binary image data; and combining at least one group of binary image data obtained after conversion according to the sequence to obtain a photo file.
The compressed file is a file corresponding to each original photo file after being compressed, and the corresponding ID code is mainly stored after the original photo data is stored in the compressed database.
In this embodiment, the correspondence between the photo file, the database, and the compressed file may be as shown in fig. 2, where there are two photo files, i.e., a photo file one and a photo file two, and the image data in the photo file is converted into a binary system and then is shown in the figure; setting M equal to 8, namely extracting 8-bit image data from the photo file to query in the database each time; if the database stores the image data '12345670', the corresponding identification information '001' is directly extracted from the database, and 001 is added into the compressed file one corresponding to the photo file one; "23157900" in the first picture file is extracted again, and if the database does not store the same data, the identification information 002 is generated in the database, and the partial image data is added to the data content corresponding to 002. The processing mode of the second photo file is the same as that of the first photo file, and is not described in detail.
In addition, it can be understood that, in this embodiment, the processing unit may delete the photo file for each time the operation of traversing the photo file is completed; alternatively, after the processing of all photo files obtained by continuous shooting of the photo files is completed, all the photo files obtained by continuous shooting may be deleted together.
Therefore, by adopting the scheme, the image data in the photo file can be read according to the preset step length, then the comparison is carried out on the basis of the read image data and the data stored in the database, only the partial image data which is not stored in the database is added and stored in the database, and the identification information corresponding to each partial image data is stored in the compressed file corresponding to the photo file. Therefore, the user can avoid storing the repeated contents in the photos with the repeated contents for many times, the more effective compression of the photo files is realized, and the storage space of the terminal equipment is saved.
The integrated module according to the embodiment of the present invention may also be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as an independent product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a base station, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (10)
1. A method of processing a photo file, the method comprising:
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; wherein the processing operation comprises: if the query result is that the same M-bit image data are stored in the database, acquiring identification information of the M-bit image data, and storing the identification information to a compressed file corresponding to a photo file; if the query result is that the same M-bit image data is not stored in the database, adding the M-bit image data into the database, generating identification information of the M-bit image data, and storing the identification information into a compressed file corresponding to a photo file;
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.
2. The method according to claim 1, wherein said sequentially reading M-bit image data from said image data comprises:
converting binary image data into hexadecimal N-bit image data, wherein N is an integer greater than or equal to 1;
and sequentially reading M-bit image data from the N-bit image data in hexadecimal.
3. The method of claim 1, wherein the photo file further comprises: description information of the photo file;
correspondingly, the method further comprises the following steps:
and establishing a compressed file corresponding to the photo file, and adding the description information of the photo file to the compressed file.
4. The method of any of claims 1-3, wherein after the deleting the photo file, the method further comprises:
acquiring a compressed file;
reading at least one piece of identification information in the compressed files one by one;
extracting at least one group of M-bit image data corresponding to the at least one identification information from the database based on the at least one identification information;
and combining the read at least one group of M-bit image data according to the sequence to obtain a photo file.
5. The method according to claim 4, wherein the step of combining the read at least one group of M-bit image data in sequence to obtain a photo file comprises:
converting the at least one set of hexadecimal M-bit image data into at least one set of binary image data;
and combining at least one group of binary image data obtained after conversion according to the sequence to obtain a photo file.
6. A terminal device, comprising:
the reading unit is used for acquiring a photo file, and the photo file at least comprises image data;
a processing unit for reading M-bit image data from the image data in sequence, 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; if the query result is that the same M-bit image data are stored in the database, acquiring identification information of the M-bit image data, and storing the identification information to a compressed file corresponding to a photo file; if the query result is that the same M-bit image data is not stored in the database, adding the M-bit image data into the database, generating identification information of the M-bit image data, and storing the identification information into a compressed file corresponding to a photo file; obtaining a compressed file corresponding to the photo file after reading all image data of the photo file, and deleting the photo file;
and the database is used for storing the image data and the corresponding identification information.
7. The terminal device according to claim 6, wherein the processing unit is configured to convert binary image data into hexadecimal N-bit image data, N being an integer greater than or equal to 1; and sequentially reading M-bit image data from the N-bit image data in hexadecimal.
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, still include in the photo file: description information of the photo file.
9. The terminal device according to any one of claims 6 to 8, wherein the processing unit is configured to obtain a compressed file after deleting the photo file; reading at least one piece of identification information in the compressed files one by one; extracting at least one group of M-bit image data corresponding to the at least one identification information from the database based on the at least one identification information; and combining the read at least one group of M-bit image data according to the sequence to obtain a photo file.
10. The terminal device according to claim 9, wherein the processing unit is configured to convert the at least one set of hexadecimal M-bit image data into at least one set of binary image data; and combining at least one group of binary image data obtained after conversion according to the sequence to obtain a photo file.
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| CN103164433A (en) * | 2011-12-13 | 2013-06-19 | 阿里巴巴集团控股有限公司 | Image search method, device and server |
| CN106156070A (en) * | 2015-03-31 | 2016-11-23 | 华为技术有限公司 | A kind of querying method, Piece file mergence method and relevant apparatus |
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| CN103164433A (en) * | 2011-12-13 | 2013-06-19 | 阿里巴巴集团控股有限公司 | Image search method, device and server |
| CN102663076A (en) * | 2012-03-31 | 2012-09-12 | 福建榕基软件股份有限公司 | Method for processing file data |
| CN106156070A (en) * | 2015-03-31 | 2016-11-23 | 华为技术有限公司 | A kind of querying method, Piece file mergence method and relevant apparatus |
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