WO2023174040A1 - 一种图片的处理方法及相关设备 - Google Patents

一种图片的处理方法及相关设备 Download PDF

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Publication number
WO2023174040A1
WO2023174040A1 PCT/CN2023/078321 CN2023078321W WO2023174040A1 WO 2023174040 A1 WO2023174040 A1 WO 2023174040A1 CN 2023078321 W CN2023078321 W CN 2023078321W WO 2023174040 A1 WO2023174040 A1 WO 2023174040A1
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WO
WIPO (PCT)
Prior art keywords
file
picture
picture file
dummy
format
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PCT/CN2023/078321
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English (en)
French (fr)
Inventor
郭小东
张海波
陈显彰
钱璟
裘杰
Original Assignee
华为技术有限公司
重庆大学
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Publication of WO2023174040A1 publication Critical patent/WO2023174040A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72427—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting games or graphical animations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
    • H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H04N19/426—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements using memory downsizing methods

Definitions

  • the present application relates to the field of computers, and in particular, to an image processing method and related equipment.
  • JPEG joint photographic experts group
  • picture format picture format
  • JPEG standard is relatively old (more than 20 years old) and requires larger storage space than subsequent new picture standards. The space is 1 times larger+.
  • new picture standards continue to emerge, new standards have problems such as ecological compatibility, limited promotion, and slow progress of development. As a result, most users fail to enjoy the benefits brought by the new picture standards and still use them. JPEG standard.
  • Embodiments of the present application provide a picture processing method and computer equipment, which encode the original picture file into a picture file with smaller storage space required to save the storage space required to save the picture; according to the original picture file and the encoded Generate a pseudo file from the picture file, and use the pseudo file to replace the original picture file to ensure ecological compatibility and adapt to various application software; at the same time, establish the corresponding relationship between the pseudo file and the encoded picture file, so that when accessing the picture
  • the original image file can be obtained by decoding the pseudo file and the encoded image file without affecting the normal use of the image.
  • This method can reduce the storage space of images while ensuring ecological compatibility, and make the application user-friendly.
  • embodiments of the present application first provide an image processing method (encoding process), which can be used to process images on the client side or on the cloud side.
  • the method includes: converting the first image file Encode into a second picture file that requires smaller storage space.
  • the storage space is reduced by changing the format of the first picture file (that is, the file formats of the first picture file and the second picture file are different.
  • the storage space required for the second picture file is less than the storage space required for the first picture file); a pseudo file is generated according to the file name and format of the first picture file, and the file name and format of the pseudo file are the same as the first picture file, At the same time, a correspondence relationship between the dummy file and the encoded second picture file is established, so that the system can locate the second picture file through the dummy file.
  • the dummy file and the second picture file are used to replace the first picture file and are stored in the memory.
  • the above picture processing method further includes saving the dummy file and the second picture file, that is, the action of saving the file and the action of image processing are performed by the same side device.
  • the above image processing method can also be executed by one device, and the step of saving the dummy file and the second image file can be executed by the other device. In this case, the above image processing method also Including sending the dummy file and the second picture file to the other side device for storage.
  • the above picture processing method can adopt any encoding method or encoding format that can achieve the above effects. That is, this application does not limit the encoding method and the format of the second picture file, as long as the storage space required by the second picture file is met.
  • the storage space required by the first image file is smaller than the storage space required by the second image file. The smaller the storage space required by the second image file, the higher the efficiency of the above image processing method and the more obvious the beneficial effect.
  • the above image processing method can use any method to establish the corresponding relationship between the dummy file and the second picture file, as long as the system can find the second picture file through the dummy file.
  • the embodiment of the present application does not carry out the specific implementation of the corresponding relationship. limited.
  • the above picture processing method encodes the first picture file into a second picture file that requires smaller storage space to save the storage space required to save the first picture file; generates the first picture file based on the first picture file and the second picture file.
  • Pseudo file replace the first image file with a pseudo file with the same file name and file format, so as to make the application insensitive, ensure ecological compatibility, and adapt to various application software; at the same time, establish the corresponding relationship between the pseudo file and the second image file, This makes it possible to find the second picture file through the pseudo file when accessing the first picture file, and decode it to obtain the first picture file, without affecting the normal use of the picture, and making the user insensitive.
  • This method can reduce the storage space of images while ensuring ecological compatibility, and make it insensitive to applications and users.
  • the request information when the first picture file needs to be accessed, for example, when the first picture file needs to be edited, viewed, or sent, the request information (the request The information includes the file name and file format of the file to be obtained), obtains the pseudo file, obtains the second picture file based on the correspondence between the pseudo file and the second picture file, and decodes the second picture file to obtain the second picture file.
  • the request information includes the file name and file format of the file to be obtained
  • obtains the pseudo file obtains the second picture file based on the correspondence between the pseudo file and the second picture file, and decodes the second picture file to obtain the second picture file.
  • the association between the pseudo file and the first picture file is established, as well as the association between the pseudo file and the second picture file, so that when the first picture file needs to be accessed, the first picture file can be quickly restored , ensuring normal access and use of the first picture file.
  • a lossless encoding method is used in the process of encoding the first picture file into the second picture file.
  • Lossless encoding will not cause loss to the quality of the picture file.
  • the first picture file After decoding the second picture file, the first picture file can be restored, and the restored first picture file has almost no quality loss compared with the original first picture file. It can It saves storage space while ensuring user experience, making users feel insensitive.
  • the dummy file and the second picture file are two independent files, and the dummy file includes the file name and storage path of the second picture file.
  • the pseudo file may also include more information about the second picture file, such as the file format, file size, etc. of the second picture file, to more accurately locate the second picture file.
  • Saving the dummy file and the second picture file as two independent files can reduce the difficulty of implementing the algorithm. In this case, save the file name and storage path of the second picture file in the dummy file, and the dummy file can be implemented. Locate the second image file.
  • the dummy file includes the second picture file, that is, the second picture file is stored in the dummy file, and the dummy file also includes the storage path of the second picture file, For example, the second picture file starts from which byte of the pseudo file.
  • Saving the dummy file and the second picture file as one file, that is, saving the second picture file in the dummy file, can reduce the complexity of system file management, and when accessing the first picture file, the dummy file can be searched for Directly locate the second image file without accessing other files, which can improve access efficiency.
  • the first picture file is captured by a camera; or the first picture file is received through an application program; or the first picture file is obtained from a memory. obtained from.
  • the above image processing method can save the storage space of the first image file, and the image processing process can be applied to various stages according to needs.
  • the format of the first picture file may be a JPEG format, a PNG format or a GIF format.
  • the first picture file is a picture file stored in the memory and has an access frequency lower than a preset value.
  • the preset value may be once a week or once a month. Or once a year.
  • the first picture file Since the first picture file is encoded to save storage space, it requires a certain amount of computing power to decode when accessing the first picture file. If the frequency of access to the first picture file is high, continuous encoding and decoding are required. The process will consume a lot of computing power. Therefore, selecting image files whose access frequency is lower than the preset value for processing can achieve a balance between storage space and system computing power, and ensure user experience to the greatest extent.
  • embodiments of the present application provide a picture processing method (decoding process) for accessing picture files, which can be applied to end-side devices or cloud-side devices.
  • the method includes: corresponding to obtaining the first picture
  • the request information of the file includes the file name and file format of the first picture file, obtains a pseudo file with the same file name and file format as the first picture file; according to the pseudo file, obtains a corresponding relationship with the pseudo file a second picture file; decode the second picture file into a first picture file, the first picture file and the second picture file have different formats, and the storage space required by the second picture file is less than that of the first picture file. required storage space.
  • the picture processing method provided in the second aspect corresponds to the picture processing method provided in the first aspect.
  • the picture processing method provided in the first aspect is used to encode the original picture file (first picture file) to save storage. Space, the image processing method provided in the second aspect is used to perform a decoding operation to restore the original image file when accessing the original image file is required.
  • the association between the pseudo file and the first image file, and the association between the pseudo file and the second image file are ensured, so that when the first image file needs to be accessed, the first image file can be quickly restored.
  • the dummy file and the second picture file are two independent files, and the dummy file includes the file name and storage path of the second picture file.
  • the dummy file includes the second picture file, that is, the second picture file is stored in the dummy file, and the dummy file also includes the storage path of the second picture file, For example, the second picture file starts from which byte of the pseudo file.
  • the format of the first picture file may be a JPEG format, a PNG format, or a GIF format.
  • the third aspect of the embodiments of the present application provides a computer device, which has a method for implementing the first aspect, the second aspect, any possible implementation manner of the first aspect, or any possible implementation manner of the second aspect.
  • Function can be implemented by hardware, or it can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the fourth aspect of the embodiment of the present application provides a computer device, which may include a memory, a processor, and a bus system.
  • the memory is used to store programs, and the processor is used to call the program stored in the memory to execute the first aspect of the embodiment of the present application. Or any possible implementation method of the first aspect.
  • the fourth aspect of the embodiments of the present application provides a computer-readable storage medium.
  • the computer-readable storage medium stores instructions. When run on a computer, the computer can execute the above-mentioned first aspect, second aspect, and first aspect. responsible for means a possible implementation method, or any possible implementation method of the second aspect.
  • the fifth aspect of the embodiment of the present application provides a computer program that, when run on a computer, causes the computer to execute the first aspect, the second aspect, any of the possible implementation methods of the first aspect, or any of the second aspects. possible implementation methods.
  • the sixth aspect of the embodiment of the present application provides a chip.
  • the chip (such as a CPU) includes at least one processor and at least one interface circuit.
  • the interface circuit is coupled to the processor.
  • the at least one interface circuit is used to perform a transceiver function. and sends the instructions to at least one processor.
  • the at least one processor is used to run a computer program or instructions, which has the ability to implement the above-mentioned first aspect, the second aspect, any one of the possible implementation methods of the first aspect, or any one of the second aspect.
  • This function can be implemented by hardware, software, or a combination of hardware and software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the interface circuit is used to communicate with other modules outside the chip. For example, the interface circuit can send the dummy file and the second picture file obtained by the processor on the chip to the device on the other side for storage.
  • Figure 1 is a storage system architecture diagram provided by an embodiment of the present application.
  • Figure 2 is a schematic flow chart of the image processing method provided by the embodiment of the present application.
  • Figure 3a is a schematic diagram of a storage method provided by an embodiment of the present application.
  • Figure 3b is a schematic diagram of another storage method provided by the embodiment of the present application.
  • Figure 4 is a schematic flow chart of the image processing method provided by the embodiment of the present application.
  • FIG. 5 is a schematic diagram of the control interface provided by the embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • the corresponding device may include one or more units, such as functional units, to perform the one or more described method steps (e.g., one unit performs one or more steps , or a plurality of units, each of which performs one or more of a plurality of steps), even if such unit or units are not explicitly depicted or illustrated in the drawings.
  • units such as functional units
  • the corresponding method may include a step to perform the functionality of the one or more units (e.g., a step to perform the functionality of the one or more units) functionality, or a plurality of steps, each of which performs the functionality of one or more of a plurality of units), even if such one or more steps are not explicitly depicted or illustrated in the drawings.
  • a step to perform the functionality of the one or more units e.g., a step to perform the functionality of the one or more units
  • a plurality of steps each of which performs the functionality of one or more of a plurality of units
  • “at least one” refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the related objects are in an "or” relationship.
  • “At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
  • At least one of a, b, or c can mean: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
  • the image processing method provided by the embodiment of the present application can be executed on the terminal side.
  • the original picture file can be obtained through an application such as a camera or a social App (application, App).
  • the original picture file is encoded by the operating system on the terminal side, and the encoded picture file and pseudo file are generated, and The encoded picture files and pseudo files are stored in the memory of the terminal to save storage space on the terminal.
  • the image processing method provided by the embodiment of the present application can be executed on the cloud side.
  • the processor on the cloud side can encode the original image file, generate the encoded image file and the pseudo file, and store the encoded image file. and pseudo files to save cloud space.
  • the image processing method provided by the embodiment of the present application can be executed collaboratively through the device and cloud.
  • the operating system of the client can encode the original image file and generate the encoded image file and pseudo file, and then the encoded image file can be and pseudo files are sent to the cloud for storage to achieve the purpose of saving cloud space.
  • the image processing method provided by the embodiment of the present application can be applied to a home storage scenario. In this case, the home storage can correspond to the above-mentioned cloud storage. The method is similar and will not be described again.
  • Figure 1 is a storage system architecture diagram provided by the embodiment of the present invention.
  • the storage system includes computing nodes 11, storage nodes 12 and storage media 13.
  • the computing node 11 and the storage node 12 may be physical servers, or may also be virtual entities based on general hardware resource abstraction such as virtual machines and containers.
  • the storage medium 13 is, for example, a storage medium such as a solid state disk (SSD), a hard disk drive (HDD), a storage class memory (SCM), etc., and the storage medium 13 can be a storage medium.
  • the storage medium local to the node may also be a distributed storage medium connected to the storage node.
  • the computing node 11 can perform data access to the storage node 12, such as writing data, reading data, etc. Specifically, the computing node 11 may send a write request to the storage node 12 to write data.
  • the data to be written in the write request may be, for example, various types of data such as pictures, databases, and texts. In this embodiment of the present application, the data to be written is also the original picture file (first picture file).
  • the storage node 12 encodes the first picture file into a picture file that requires smaller storage space through the encoding module 121, that is, a second picture file.
  • the pseudo file generation module 123 is based on the third picture file received by the storage node 12.
  • the storage node 12 may also include a decoding module 122.
  • the computing node 11 needs to read the original picture file (first picture file)
  • the storage node 12 can find the encoded second picture file from the storage medium 13 based on the pseudo file, and Read the encoded second image file.
  • the decoding module 122 is used to decode the encoded second picture file to restore the first picture file, and return the obtained first picture file to the computing node 11 .
  • the above-mentioned encoding module 121, pseudo file generation module 123, and decoding module 122 may be in the form of software, hardware, or firmware.
  • FIG. 2 is a schematic flowchart of an image processing method provided by an embodiment of the present application. Specifically, it may include the following steps:
  • the 201 Encode the first picture file into a second picture file.
  • the format of the first picture file is different from the format of the second picture file.
  • the storage space required for the second picture file is smaller than that required for the first picture file. storage.
  • the image processing method provided in the embodiment of the present application is used to reduce the storage space required to store images. Therefore, image files can be processed in various links.
  • the image file can be processed when the image file is generated or received for the first time.
  • the image file can be processed after the image file is captured by a camera. After receiving the image file through the application, the image file is processed.
  • the image files already stored in the memory can be processed. For example, this operation can be performed regularly. At this time, the image file can be obtained from the memory, and then the image file can be stored in the memory again after being processed.
  • the above time nodes are only exemplary, and other time nodes that can encode the picture are possible. In actual operation, the appropriate time node can be selected according to the requirements.
  • image files in the memory that are accessed less frequently than a preset value can be processed regularly, and image files that are accessed more frequently are saved in the form of original images so that they can be stored in the storage space.
  • the preset value may be once a month, once a quarter, or once a year, etc. This application does not limit this.
  • the format of the first picture described in the embodiment of this application can be common picture standard formats such as JPEG format, PNG (portable network graphics, PNG) format, GIF (graphics interchange format, GIF) format, etc. These picture standard formats have universal , most ecosystems can support images in these formats, and their ecological compatibility is good.
  • the format of the second picture described in the embodiment of this application can be any picture format that can reduce the storage space of the picture. It is not limited to common picture formats and can also be a private format.
  • the second format can be HEIF ( high efficiency image format, HEIF) format.
  • HEIF high efficiency image format
  • the encoding algorithm with a large compression gain is preferred. For example, you can choose a compression gain of 20+% (the file size of the encoded image file is reduced by 20% compared with the image file before encoding). +%) encoding algorithm.
  • the existing technology usually refers to the process of encoding picture files from bitmap format to JPEG and other formats as one-time encoding.
  • the format of the original picture taken by the camera is usually bitmap format
  • image files in bitmap format are usually first encoded into formats such as JPEG and then stored. Since image files in bitmap format require a large storage space, the above-mentioned one-time encoding process can also achieve the purpose of saving storage space.
  • encoding the first picture file into the second picture file is not a single encoding process, but a second encoding process performed after the first encoding. That is, the format of the first picture file in the embodiment of the present application is not a bitmap, but a picture format such as JPEG that has been encoded once.
  • the encoding process of encoding the first picture into the second picture is lossless encoding.
  • the second picture file can be restored to the first picture file through the decoding operation, and the lossless encoding method is used, so that the decoded first picture file has almost no loss compared with the original picture file, ensuring that A good user experience makes the user insensitive and more user-friendly.
  • the lossless encoding method may be visually lossless encoding, that is, the first picture file recovered by decoding the second picture file has no visual loss compared with the original first picture file, and the user will not notice the decoded first picture file. The difference between the first picture file and the original first picture file.
  • the lossless encoding method may be bit lossless encoding, that is, the first picture file recovered by decoding the second picture file has the same bit rate as the original first picture file. It should be understood that the above lossless encoding methods are only exemplary, and other lossless encoding methods that can ensure user experience are possible.
  • the pseudo file has the same format and file name as the first picture file. There is a corresponding relationship between the pseudo file and the second picture file. The pseudo file and the second picture file is used for saving in the memory.
  • the system will record the file name, format, storage path and other information of the first picture file.
  • the first picture file can be found through the above information.
  • the second picture file may not be directly found when the first picture is called. Therefore, a pseudo file needs to be generated as a bridge between the system and the second image file.
  • the file name and format of the pseudo file are the same as the first picture file. Based on this, the pseudo file can be used to replace the first picture file.
  • the application will think that the pseudo file is the first picture file. Therefore, when calling the first picture file The pseudo file will be found based on its file name and format. At the same time, it is also necessary to establish a corresponding relationship between the pseudo file and the second picture file, so that when the system finds the pseudo file based on the file name and file format, it further points to the second picture file, so that the system can obtain the first picture through the pseudo file.
  • the actual content of the file i.e., the second image file).
  • the pseudo file may also include a pseudo file identifier, which is used to indicate that the pseudo file is a dummy file and is not the real first picture file, in case the system finds the pseudo file.
  • the pseudo file is directly used as the first image file for reading operation.
  • the dummy file and the second picture file can be saved in the memory to replace the first picture file. Since the dummy file and the second picture file require storage The space is much smaller than that of the first picture file. Therefore, only storing the dummy file and the second picture file without storing the first picture file can greatly save storage space.
  • the dummy file and the second picture file can be stored as two independent files.
  • the file name of the first picture file is A1
  • the format is JPEG format.
  • the format and file name of the second picture file obtained after encoding the first picture file can be arbitrary, as long as the storage space required by the second picture file is smaller than that of the first picture file.
  • the file name of the pseudo file is A1 and the format is JPEG.
  • the pseudo file includes the file name and storage path of the second picture.
  • the algorithm implementation of this implementation method is relatively easy and can reduce the difficulty of algorithm implementation.
  • the dummy file may include the second picture file.
  • the second picture file is also stored.
  • the file name of the entire pseudo file is A1
  • the format of the entire pseudo file is JPEG format
  • the entire pseudo file includes the second image file and the pseudo file header, where the pseudo file header includes the second The storage path of the image. Since the dummy file includes the second picture file, the storage path of the second picture file It can be used to indicate which byte of the dummy file the second picture file starts from.
  • the system finds the pseudo file through the file name and format, and then finds the effect of the second picture file through the relevant information in the pseudo file. Only one pseudo file is saved in this implementation, which can reduce the complexity of the file management system and improve the efficiency of the file management system.
  • the execution subject that saves the dummy file and the second picture file may be different.
  • the above image processing method is executed on the terminal side. At this time, the saving action is also executed on the terminal side.
  • the above image processing method is executed on the cloud side. At this time, the saved action is also executed on the cloud side.
  • the above image processing method may involve end-cloud collaboration, or collaboration between two end-sides. In this case, the end-side (or one of the sides) may perform steps 201 and 202, and then the end-side will The dummy file and the second picture file are sent to the cloud side (or the other side) and stored by the cloud side (or the other side).
  • Figure 4 is a schematic flowchart of the image processing method provided by the embodiment of the present application. Specifically, it may include the following steps:
  • the request information includes the file name and format of the first picture file.
  • the file name and format of the dummy file are the same as the first picture file.
  • the relevant application needs to send a request to obtain the first image file to obtain the first image file and perform the corresponding operation.
  • the request information needs to contain the file name and format of the first picture file, which is used to find the first picture information. Since the pseudo file has the same file name and format as the first picture file, the system The pseudo file will be mistaken for the first image file to be obtained, and the pseudo file will be obtained.
  • the pseudo file includes a pseudo file identifier. Therefore, when the system reads the information of the pseudo file, it will know that the pseudo file is not the first image file to be obtained, but a puppet file. At this time, the system can obtain the second picture file based on the corresponding relationship between the dummy file and the second picture file.
  • the second picture file into a first picture file.
  • the first picture file and the second picture file have different formats.
  • the storage space required for the second picture file is smaller than that required for the first picture file. storage.
  • the decoding method corresponding to the above encoding method can be used to decode the second picture file into the first picture file, thereby realizing the restoration of the first picture file, so that the system can successfully obtain the requested information.
  • the first image file required.
  • the first image file can be operated on according to the request. After completing the operation on the first picture file, the closing process can be entered. In a possible implementation, different shutdown processes may need to be performed according to different operations. For example, when the first picture file is only displayed without modifying the first picture file, neither the dummy file nor the second picture file needs to be modified. In this case, the first picture file can be directly retrieved from the cache. Just delete it (release the cache). When editing the first picture file, it is necessary to regenerate the dummy file and/or the second picture file based on the edited first picture file, and then delete the first picture file from the cache (release the cache ).
  • the image processing method provided by the embodiment of the present application encodes the original image file into an image file with smaller storage space required to save the storage space required to save the image; generates a pseudo file based on the original image file and the encoded image file. , use this pseudo file to replace the original image file to ensure ecological compatibility and adapt to various application software; at the same time, establish the corresponding relationship between the pseudo file and the encoded image file, so that when accessing the image, you can use the pseudo file and encoding
  • the decoded image file is decoded to obtain the original image file, which does not affect the normal use of the image. This method can reduce the storage space of images while ensuring ecological compatibility, and make the application user-friendly.
  • the above image processing method can be used as a function of the computer device, and the function can be set through a switch in the settings.
  • the function can be a new function that prompts the user during a system upgrade.
  • the control interface of this function is shown in Figure 5. The user can control the turning on or off of the function through this switch.
  • the computer device may include handheld terminal devices, such as mobile phones, computers, iPads, etc., and may also include smart wearable devices, such as smart bracelets, smart watches, smart heart rate meters, etc.; it may also include wheeled mobile devices, such as, Vehicles (such as self-driving vehicles), aircraft, robots (such as sweeping robots), etc.
  • this application does not limit the product form of computer equipment. As long as it can be used to implement the image processing method described in this application, it can be used. called computer equipment.
  • Figure 6 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • the computer device 600 includes: a coding/decoding module 601 and a generating module 602, wherein the obtaining module 601 is used to convert the first picture
  • the file is encoded into a second picture file.
  • the format of the first picture file is different from the format of the second picture file.
  • the storage space required for the second picture file is less than the storage space required for the first picture file;
  • generation module 602 used to generate a pseudo file according to the first picture file and the second picture file.
  • the pseudo file has the same format and file name as the first picture file.
  • the pseudo file has a corresponding relationship with the second picture file. file and the second picture file for saving in the memory.
  • the computer device 600 further includes: an acquisition module 603, configured to obtain the pseudo file in response to the request information for obtaining the first picture file, and obtain the second picture file based on the pseudo file; encoding/ The decoding module 601 is also used to decode the second picture file into a first picture file.
  • the encoding/decoding module 601 is specifically configured to losslessly encode the first picture file into a second picture file.
  • the dummy file and the second picture file are two independent files; the dummy file has a corresponding relationship with the second picture file, including: the dummy file includes the file name of the second picture and Storage path.
  • the dummy file contains the second picture file; and the dummy file includes the storage path of the second picture.
  • the first picture file is captured by a camera; or the first picture file is received through an application program; or the first picture file is obtained from a memory.
  • the format of the first picture file is any one of the following picture formats: JPEG format, PNG format or GIF format.
  • the first picture file is obtained from the memory, and the access frequency of the first picture is lower than a preset value.
  • the computer device 600 further includes: a sending module 604, configured to send the dummy file and the third The two pictures are sent to the memory for storage.
  • the computer device 600 further includes: a storage module 605 for storing the dummy file and the second picture.
  • Figure 7 is a schematic structural diagram of a computer device provided by an embodiment of the present application.
  • the computer device 700 includes: an acquisition module 701 and a decoding module 702, wherein the acquisition module 701 is used to acquire the first picture in response to The request information of the file is used to obtain a dummy file.
  • the request information includes the file name and format of the first picture.
  • the file name and format of the dummy file are the same as the first picture.
  • the acquisition module 701 is also used to obtain the second dummy file based on the dummy file.
  • a picture file, the dummy file and the second picture file have a corresponding relationship; the decoding module 702 is used to decode the second picture file into a first picture file, the first picture file and the second picture file have different formats , the storage space required by the second picture file is smaller than the storage space required by the first picture file.
  • the dummy file and the second picture file are two independent files; the dummy file has a corresponding relationship with the second picture file, including: the dummy file includes the file name of the second picture and Storage path.
  • the dummy file contains the second picture file; and the dummy file includes the storage path of the second picture.
  • the format of the first picture file is any one of the following picture formats: JPEG format, PNG format or GIF format.
  • FIG. 8 is a schematic structural diagram of the computer device provided by the embodiment of the present application. For convenience of explanation, only the parts related to the embodiment of the present application are shown. If the specific technical details are not disclosed, please refer to the method section of the embodiments of this application.
  • the modules described in the corresponding embodiments of FIG. 6 and FIG. 7 may be deployed on the computer device 800 to implement the functions of the computer device 600 in the corresponding embodiment of FIG. 6 and the functions of the computer device 700 in the corresponding embodiment of FIG. 7 .
  • the computer device 800 is implemented by one or more servers.
  • the computer device 800 may vary greatly due to different configurations or performance, and may include one or more central processing units (CPU) 822 and memory 832. , one or more storage media 830 (eg, one or more mass storage devices) storing applications 842 or data 844. Among them, the memory 832 and the storage medium 830 may be short-term storage or persistent storage.
  • the program stored in the storage medium 830 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the computer device 800 .
  • the central processor 822 may be configured to communicate with the storage medium 830 and execute a series of instruction operations in the storage medium 830 on the computer device 800 .
  • Computer device 800 may also include one or more power supplies 826, one or more wired or wireless network interfaces 850, one or more input and output interfaces 858, and/or, one or more operating systems 841, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and more.
  • the central processor 822 is used to execute the image processing method in the corresponding embodiments of FIG. 2 and FIG. 4 .
  • the central processor 822 may be used to: encode a first picture file into a second picture file.
  • the format of the first picture file is different from the format of the second picture file.
  • the storage space required for the second picture file is less than
  • the storage space required for the first picture file is generated according to the first picture file and the second picture file.
  • the pseudo file has the same format and file name as the first picture file.
  • the pseudo file is the same as the second picture file. There is a corresponding relationship between the picture files, and the pseudo file and the second picture file are used to save in the memory.
  • the central processing unit 822 can also be used to execute any step in the method embodiment corresponding to Figure 2 and Figure 4 in this application.
  • any step in the method embodiment corresponding to Figure 2 and Figure 4 in this application please refer to the description in the method embodiment shown above in this application. No further details will be given here.
  • the embodiments of the present application also provide a computer-readable storage medium, which stores a program for signal processing. When it is run on a computer, it causes the computer to execute the steps described in the foregoing embodiments. The steps performed by computer equipment.
  • the device embodiments described above are only illustrative.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physically separate.
  • the physical unit can be located in one place, or it can be distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • the connection relationship between modules indicates that there are communication connections between them, which can be specifically implemented as one or more communication buses or signal lines.
  • the present application can be implemented by software plus necessary general hardware. Of course, it can also be implemented by dedicated hardware including dedicated integrated circuits, dedicated CPUs, dedicated memories, Special components, etc. to achieve. In general, all functions performed by computer programs can be easily implemented with corresponding hardware. Moreover, the specific hardware structures used to implement the same function can also be diverse, such as analog circuits, digital circuits or special-purpose circuits. circuit etc. However, for this application, software program implementation is a better implementation in most cases. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or that contributes to the existing technology.
  • the computer software product is stored in a readable storage medium, such as a computer floppy disk. , U disk, mobile hard disk, read only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc., including a number of instructions to make a computer device (which can be a personal computer, training equipment, or network equipment, etc.) to execute the methods described in various embodiments of this application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, the computer instructions may be transferred from a website, computer, training device, or data
  • the center transmits to another website site, computer, training equipment or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that a computer can store, or a data storage device such as a training device or a data center integrated with one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVD)), or semiconductor media (eg, solid state disks). ,SSD)), etc.

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Abstract

本申请实施例公开了一种图片的处理方法及计算机设备，可应用于计算机文件管理领域，具体可应用于图片文件压缩场景，包括：将第一图片文件编码为所需存储空间更小的第二图片文件，根据第一图片文件的文件名和格式生成伪文件，并建立该伪文件与编码得到的第二图片文件之间的对应关系，以使得系统能够通过该伪文件定位到该第二图片文件，用伪文件和第二图片文件替代第一图片文件，并存储于存储器中。该方法能够在保证生态兼容性的同时，减小图片的存储空间，并做到应用和用户无感。

Description

一种图片的处理方法及相关设备 技术领域
本申请涉及计算机领域，尤其涉及一种图片的处理方法及相关设备。
背景技术
随着智能手机为代表的终端的流行，现有智能手机和云存储中媒体类文件(特别是图片)的占比普遍较高，且随着相机像素不断增加，图片分辨率越来越高，每张照片占用的存储空间也越来越大。目前，存储空间不足已成为用户更换手机的主要因素之一，降低图片所需的存储空间，提升存储空间使用效率能够极大提升用户体验及黏性。
JPEG(joint photographic experts group,JPEG)是当前使用最广泛的图片标准(图片格式)，但是JPEG标准较为老旧(超20年)，所需的存储空间较大，比后续新的图片标准占用存储空间大1倍+，虽然新的图片标准不断出现，但是新标准存在生态兼容性等问题，推广受限，发展的进度慢，导致大多用户未能享受新的图片标准带来的收益，仍然沿用JPEG标准。
因此，如何在保证生态兼容性的同时，减小图片的存储空间，成为亟待解决的问题。
发明内容
本申请实施例提供了一种图片的处理方法及计算机设备，将原始图片文件编码为所需存储空间更小的图片文件，以节约保存该图片所需的存储空间；根据原始图片文件和编码后的图片文件生成伪文件，用该伪文件替代原始图片文件，以保证生态兼容性，适配各种应用软件；同时建立该伪文件与编码后的图片文件的对应关系，使得在访问该图片时能够通过伪文件和编码后的图片文件解码得到原始图片文件，不影响图片的正常使用。该方法能够在保证生态兼容性的同时，减小图片的存储空间，并做到应用无感。
基于此，本申请实施例提供以下技术方案：
第一方面，本申请实施例首先提供一种图片处理方法(编码过程)，可应用于端侧对图片进行处理，也可应用于云侧对图片进行处理，该方法包括：将第一图片文件编码为所需存储空间更小的第二图片文件，在编码的过程中通过改变第一图片文件的格式来实现存储空间的减小(即，第一图片文件和第二图片文件的文件格式不同，第二图片文件所需的存储空间小于第一图片文件所需的存储空间)；根据第一图片文件的文件名和格式生成伪文件，该伪文件的文件名和格式与该第一图片文件相同，同时，建立该伪文件与编码得到的第二图片文件之间的对应关系，以使得系统能够通过该伪文件定位到该第二图片文件。伪文件和第二图片文件用于替代第一图片文件，并存储于存储器中。
应当理解，当整个图片处理流程涉及至少两个设备时，例如，端侧设备和云侧设备。在一种可能的实现方式中，上述图片处理方法还包括保存该伪文件和该第二图片文件，即保存文件的动作和图片处理的动作由同一侧设备执行。在另一种可能的实现方式中，也可以由其中一侧设备执行上述图片处理方法，由另一侧设备执行保存该伪文件和该第二图片文件的步骤，此时，上述图片处理方法还包括，将该伪文件和该第二图片文件发送至另一侧设备进行存储。
应当理解，上述图片处理方法可以采用任何能够实现上述效果的编码方法或者编码格式，即，本申请对编码方法和第二图片文件的格式不进行限定，只要满足第二图片文件所需的存储空间小于第一图片文件所需的存储空间即可，第二图片文件所需的存储空间越小，上述图片处理方法的效率越高，有益效果越明显。
应当理解，上述图片处理方法可以采用任何方式建立伪文件与第二图片文件的对应关系，只要系统能够通过伪文件找到第二图片文件即可，本申请实施例对对应关系的具体实现方式不进行限定。
上述图片的处理方法，将第一图片文件编码为所需存储空间更小的第二图片文件，以节约保存该第一图片文件所需的存储空间；根据第一图片文件和第二图片文件生成伪文件，用文件名和文件格式相同的伪文件替代第一图片文件，以使得应用无感，保证生态兼容性，适配各种应用软件；同时建立该伪文件与第二图片文件的对应关系，使得在需要访问第一图片文件时能够通过伪文件找到第二图片文件，并解码得到第一图片文件，不影响图片的正常使用，做到用户无感。该方法能够在保证生态兼容性的同时，减小图片的存储空间，并做到应用和用户无感。
在第一方面的一种可能的实现方式中，在需要访问第一图片文件时，例如，需要编辑、查看、或者发送第一图片文件时，可以基于获取第一图片文件的请求信息(该请求信息中包含所要获取的文件的文件名和文件格式)，获取到该伪文件，再基于该伪文件与第二图片文件的对应关系获取该第二图片文件，并基于该第二图片文件解码得到第一图片文件。
通过上述机制，建立伪文件和第一图片文件之间的关联关系，以及伪文件与第二图片文件之间的关联关系，使得在需要访问第一图片文件时，能够快速恢复得到第一图片文件，保证第一图片文件的正常访问和使用。
在第一方面的一种可能的实现方式中，将第一图片文件编码为第二图片文件的过程中采用无损编码的方法。
无损编码不会对图片文件的质量造成损失，对第二图片文件进行解码后能够恢复得到第一图片文件，且恢复得到的第一图片文件与原始第一图片文件相比几乎没有质量损失，能够在节约存储空间的同时保证用户体验，做到用户无感。
在第一方面的一种可能的实现方式中，该伪文件和该第二图片文件是两个独立的文件，该伪文件中包括该第二图片文件的文件名和存储路径。
应当理解，伪文件中还可以包括更多关于第二图片文件的信息，例如，第二图片文件的文件格式，文件大小等，以更加精准的定位到第二图片文件。
将伪文件和第二图片文件保存为两个独立的文件，可以降低算法的实现难度，在这种情况下，在伪文件中保存第二图片文件的文件名和存储路径，即可实现通过伪文件定位到第二图片文件。
在第一方面的一种可能的实现方式中，该伪文件包含该第二图片文件，即，将第二图片文件存储于伪文件中，伪文件中还包括该第二图片文件的存储路径，例如，第二图片文件是从该伪文件的第几个字节开始的。
将伪文件和第二图片文件保存为一个文件，即，将第二图片文件保存于伪文件中，可以降低系统文件管理的复杂度，且由于在访问第一图片文件时，可通过查找伪文件直接定位到第二图片文件，不需要再访问其他文件，能够提升访问效率。
在第一方面的一种可能的实现方式中，该第一图片文件为通过相机拍摄得到的；或者，该第一图片文件为通过应用程序接收得到的，或者，该第一图片文件为从存储器中获取的。
上述图片处理方法能够节约第一图片文件的存储空间，该图片处理过程可以根据需求应用于各个阶段。
在第一方面的一种可能的实现方式中，该第一图片文件的格式可以是JPEG格式、PNG格式或者GIF格式。
在第一方面的一种可能的实现方式中，该第一图片文件是存储器中保存的，访问频率低于预设值的一个图片文件，例如，预设值可以是一周一次，一个月一次，或者一年一次。
由于对第一图片文件进行编码以节约存储空间，需要访问第一图片文件时再进行解码，需要一定的算力支持，如果对第一图片文件的访问频率较高，需要不断进行编码和解码的过程，会消耗大量的算力。因此，选择访问频率低于预设值的图片文件进行处理，能够在存储空间和系统算力二者之间取得一个平衡，最大程度上保证用户体验。
第二方面，本申请实施例提供一种图片处理方法(解码过程)，用于访问图片文件，可应用于端侧设备，也可应用于云侧设备，该方法包括：相应于获取第一图片文件的请求信息，该请求信息中包括该第一图片文件的文件名和文件格式，获取与第一图片文件具有相同文件名和文件格式的伪文件；根据该伪文件，获取与该伪文件存在对应关系的第二图片文件；将第二图片文件解码为第一图片文件，该第一图片文件与该第二图片文件的格式不同，该第二图片文件所需的存储空间小于该第一图片文件所需的存储空间。
应当理解，第二方面提供的图片处理方法与第一方面提供的图片处理方法是对应的，第一方面提供的图片处理方法用于对原始图片文件(第一图片文件)进行编码操作以节约存储空间，第二方面提供的图片处理方法用于在需要访问原始图片文件时，进行解码操作以恢复原始图片文件。
通过上述图片处理方法，保证伪文件和第一图片文件之间的关联关系，以及伪文件与第二图片文件之间的关联关系，使得在需要访问第一图片文件时，能够快速恢复得到第一图片文件，保证第一图片文件的正常访问和使用。
在第二方面的一种可能的实现方式中，该伪文件和该第二图片文件是两个独立的文件，该伪文件中包括该第二图片文件的文件名和存储路径。
在第二方面的一种可能的实现方式中，该伪文件包含该第二图片文件，即，将第二图片文件存储于伪文件中，伪文件中还包括该第二图片文件的存储路径，例如，第二图片文件是从该伪文件的第几个字节开始的。
在第二方面的一种可能的实现方式中，该第一图片文件的格式可以是JPEG格式、PNG格式或者GIF格式。
本申请实施例第三方面提供一种计算机设备，该计算机设备具有实现上述第一方面、第二方面、第一方面任意一种可能实现方式、或第二方面任意一种可能实现方式的方法的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
本申请实施例第四方面提供一种计算机设备，可以包括存储器、处理器以及总线系统，其中，存储器用于存储程序，处理器用于调用该存储器中存储的程序以执行本申请实施例第一方面或第一方面任意一种可能实现方式的方法。
本申请实施例第四方面提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述第一方面、第二方面、第一方面任 意一种可能实现方式、或第二方面任意一种可能实现方式的方法。
本申请实施例第五方面提供了一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面、第二方面、第一方面任意一种可能实现方式、或第二方面任意一种可能实现方式的方法。
本申请实施例第六方面提供了一种芯片，该芯片(如，CPU)包括至少一个处理器和至少一个接口电路，该接口电路和该处理器耦合，至少一个接口电路用于执行收发功能，并将指令发送给至少一个处理器，至少一个处理器用于运行计算机程序或指令，其具有实现如上述第一方面、第二方面、第一方面任意一种可能实现方式、或第二方面任意一种可能实现方式的方法的功能，该功能可以通过硬件实现，也可以通过软件实现，还可以通过硬件和软件组合实现，该硬件或软件包括一个或多个与上述功能相对应的模块。此外，该接口电路用于与该芯片之外的其它模块进行通信，例如，该接口电路可将芯片上处理器得到的伪文件和第二图片文件发送给另一侧设备进行保存。
本申请实施例第二到第六方面能够实现如第一方面所述的有益效果，为避免重复，此处不再进行赘述。
附图说明
图1为本申请实施例提供的一个存储系统架构图；
图2为本申请实施例提供的图片处理方法的一个流程示意图；
图3a为本申请实施例提供的一种存储方式示意图；
图3b为本申请实施例提供的另一种存储方式示意图；
图4为本申请实施例提供的图片处理方法的一个流程示意图；
图5为本申请实施例提供的控制界面的一个示意图；
图6为本申请实施例提供的计算机设备的一种结构示意图；
图7是本申请实施例提供的计算机设备的一种结构示意图；
图8是本申请实施例提供的计算机设备的一种结构示意图。
具体实施方式
下面结合本发明实施例中的附图对本发明实施例进行描述。以下描述中，示出本发明实施例的具体方面或可使用本发明实施例的具体方面的附图。应理解，本发明实施例可在其它方面中使用，并可包括附图中未描绘的结构或逻辑变化。因此，以下详细描述不应以限制性的意义来理解，且本发明的范围由所附权利要求书界定。例如，应理解，结合所描述方法的揭示内容可以同样适用于用于执行所述方法的对应设备或系统，且反之亦然。例如，如果描述一个或多个具体方法步骤，则对应的设备可以包含如功能单元等一个或多个单元，来执行所描述的一个或多个方法步骤(例如，一个单元执行一个或多个步骤，或多个单元，其中每个都执行多个步骤中的一个或多个)，即使附图中未明确描述或说明这种一个或多个单元。另一方面，例如，如果基于如功能单元等一个或多个单元描述具体装置，则对应的方法可以包含一个步骤来执行一个或多个单元的功能性(例如，一个步骤执行一个或多个单元的功能性，或多个步骤，其中每个执行多个单元中一个或多个单元的功能性)，即使附图中未明确描述或说明这种一个或多个步骤。进一步，应理解的是，除非另外明确提出，本文中所描述的各示例性实施例和/或方面的特征可以相互组合。
本发明实施例中，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，可以表示：a，b，c，a-b，a-c，b-c，或a-b-c，其中a，b，c可以是单个，也可以是多个。
本发明的实施方式部分使用的术语仅用于对本发明的具体实施例进行解释，而非旨在限定本发明。
首先对本申请实施例提供的图片处理方法所涉及的应用场景进行介绍。在一种可能的实现方式中，本申请实施例提供的图片处理方法可在端侧执行。示例性的，可通过诸如相机或者社交App(application,App)等应用程序获得原始图片文件，由端侧的操作系统对原始图片文件进行编码，并生成编码后的图片文件和伪文件，并将编码后的图片文件和伪文件存储在端侧的存储器中，以实现节约端侧的存储空间的目的。在一种可能的实现方式中，本申请实施例提供的图片处理方法可在云侧执行。示例性的，当端侧将原始图片文件发送给云侧进行存储时，云侧的处理器可对原始图片文件进行编码，并生成编码后的图片文件和伪文件，并将编码后的图片文件和伪文件进行存储，以实现节约云空间的目的。在一种可能的实现方式中，本申请实施例提供的图片处理方法可通过端云协同执行。示例性的，当端侧需要将图片文件发送到云侧进行存储时，可由端侧的操作系统对原始图片文件进行编码，并生成编码后的图片文件和伪文件，再将编码后的图片文件和伪文件发送到云端进行保存，以实现节约云空间的目的。在一种可能的实现方式中，本申请实施例提供的图片处理方法可应用于家庭存储的场景中，此时，家庭存储可对应于上述云侧存储，其方法类似，不再进行赘述。
其次，对本申请实施例提供的系统架构进行介绍，具体请参阅图1，图1为本发明实施例提供的存储系统架构图。如图1所示，存储系统中包括计算节点11、存储节点12和存储介质13。其中，所述计算节点11和存储节点12可以为物理服务器，或者也可以为虚拟机、容器等基于通用硬件资源抽象的虚拟实体。所述存储介质13例如为固态硬盘(Solid State Disk，SSD)、硬盘(hard disk drive，HDD)、存储级内存(Storage class memory，SCM)等存储介质，并且，所述存储介质13可以为存储节点本地的存储介质，也可以为与存储节点连接的分布式的存储介质。
计算节点11可对存储节点12进行数据访问，例如写数据、读数据等。具体是，计算节点11可向存储节点12发送写请求以写入数据，该写请求的待写数据例如可以为图片、数据库、文本等各种类型的数据。在本申请实施例中，该待写数据也即原始图片文件(第一图片文件)。存储节点12在接收到写请求之后，通过编码模块121将第一图片文件编码为所需存储空间更小的图片文件，即，第二图片文件，伪文件生成模块123基于存储节点12接收的第一图片文件，和编码模块121编码得到的第二图片文件生成伪文件。存储节点12还可以包括解码模块122，当计算节点11需要读取原始图片文件(第一图片文件)时，存储节点12可根据伪文件，从存储介质13找到编码后的第二图片文件，并读取编码后的第二图片文件。解码模块122用于对编码后的第二图片文件进行解码，以恢复第一图片文件，并将得到的第一图片文件返回给计算节点11。上述编码模块121、伪文件生成模块123、解码模块122可以为软件、硬件或者固件的形式。
基于上述所述的系统架构，接下来对本申请实施例提供的图片处理方法进行详细介绍，该图片处理方法可用于上述的各种应用场景中，这里仅以端侧作为执行主体对方案进行详细的描述，应该理解，其他应用场景中也可以使用，且方法基本相同。具体请参阅图2，图2为本申请实施例提供的图片处理方法的一个流程示意图，具体可以包括如下步骤：
201、将第一图片文件编码为第二图片文件，该第一图片文件的格式与该第二图片文件的格式不同，该第二图片文件所需的存储空间小于该第一图片文件所需的存储空间。
应当理解，本申请实施例中提供的图片处理方法用于减小存储图片所需的存储空间，因此，可以在各个环节对图片文件进行处理。在一种可能的实现方式中，可以在第一次生成或者接收到图片文件的时候就对图片文件进行处理，例如，在通过相机拍摄得到图片文件后就对图片文件进行处理，再如，在通过应用程序接收得到图片文件后就对图片文件进行处理。在另一种可能的实现方式中，可以对存储器中已经存储的图片文件进行处理，例如，该操作可以定期进行。此时，可以从存储器中获取图片文件，对图片文件进行处理后，再将图片文件重新存储在存储器中。应当理解，上述时间节点仅仅是示例性的，其他可以对图片进行编码处理的时间节点可是可能的，实际操作时，可根据需求选择恰当的时间节点。
特别的，由于对图片文件进行编码处理后，还需要对图片文件进行解码处理以得到原始图片文件，会在一定程度上增加操作的复杂度，增加系统算力，降低获取图片的效率。因此，在一种可能的实现方式中，可以定期将存储器中访问频率低于预设值的图片文件进行处理，对于访问频率较高的图片文件则以原始图片的形式进行保存，以在存储空间和操作效率之间得到一定的平衡。示例性的，预设值可以是一个月一次，一个季度一次，或者一年一次等，本申请对此不进行限制。
本申请实施例中所描述的第一图片的格式可以是JPEG格式、PNG(portable network graphics，PNG)格式、GIF(graphics interchange format，GIF)格式等常见的图片标准格式，这些图片标准格式具有通用性，大多数生态都能够支持这些格式的图片，其生态兼容性较好。本申请实施例中所描述的第二图片的格式可以是任何能够实现减小图片的存储空间的图片格式，不限于通用的图片格式，也可以是私有格式，例如，第二格式可以是HEIF(high efficiency image format，HEIF)格式。应当理解，本申请实施例中将第一图片文件编码为第二图片文件是为了减小存储该图片文件所需的存储空间，因此，只要符合第二图片格式所需的存储空间小于第一图片格式所需的存储空间这个约束关系的任一两种图片格式都是可能的，只要能够实现这个效果的任意一种编码算法都是可能的，本申请实施例对第一图片文件和第二图片文件的具体格式以及所采用的编码算法不进行限制。
应当理解，所采用的编码算法的压缩收益越大，编码后的图片文件所需的存储空间越小，能够节约更多的存储空间。因此，在保证图片文件的质量的前提下，优选压缩收益大的编码算法，例如，可选择压缩收益为20+％(编码后的图片文件与编码前的图片文件相比，文件大小减小20+％)的编码算法。
需要注意的是，现有技术通常把将图片文件从位图(bitmap)格式编码为JPEG等格式的过程称为一次编码，例如，相机拍摄得到的原始图片的格式通常为位图格式，而现有技术中通常会首先将位图格式的图片文件编码为JPEG等格式，再进行存储。由于位图格式的图片文件所需的存储空间很大，因此，上述一次编码的过程也能够实现节约存储空间的目的。本申请实施例中将第一图片文件编码为第二图片文件不是一次编码的过程，而是在一次编码之后进行的二次编码的过程。即，本申请实施例中第一图片文件的格式并不是位图，而是JPEG等经过一次编码之后的图片格式。
在一种可能的实现方式中，将该第一图片编码为该第二图片的编码过程是无损编码。在解码过程中，可以通过解码操作将该第二图片文件恢复为第一图片文件，且采用无损编码方法，能够使得解码得到的第一图片文件与原始图片文件相比，几乎没有损失，能够保证良好的用户体验，做到用户无感，对用户更加友好。示例性的，该无损编码方式可以是视觉无损编码，即通过第二图片文件解码恢复得到的第一图片文件与原始第一图片文件相比，视觉上没有损失，用户不会察觉到解码得到的第一图片文件与原始第一图片文件的区别。示例性的，该无损编码方式可以是比特无损编码，即通过第二图片文件解码恢复得到的第一图片文件与原始第一图片文件相比，比特率相同。应当理解，上述无损编码方式仅仅是示例性的，其他能够保证用户体验的无损编码方式都是可能的。
202、根据该第一图片文件和该第二图片文件生成伪文件，该伪文件与该第一图片文件的格式和文件名相同，该伪文件与该第二图片文件存在对应关系，该伪文件和该第二图片文件用于保存于存储器中。
现有技术中如果直接存储第一图片文件，则系统会记录该第一图片文件的文件名、格式、存储路径等信息，在需要调用第一图片文件时，可通过上述信息找到第一图片文件。在对第一图片文件进行编码得到第二图片文件之后，由于第二图片文件与第一图片文件的格式不同，可能导致在调用第一图片时无法直接找到第二图片文件。因此，需要生成伪文件，作为系统与第二图片文件之间的桥梁。
该伪文件的文件名和格式与第一图片文件相同，基于此，可以用该伪文件替代第一图片文件，应用会认为该伪文件就是第一图片文件，因此，在调用第一图片文件的时候会依据文件名和格式找到该伪文件。同时，还需要建立该伪文件与第二图片文件的对应关系，以在系统依据文件名和文件格式找到该伪文件时，进一步指向第二图片文件，使得系统能够通过该伪文件获取到第一图片文件的实质内容(即，第二图片文件)。
在一种可能的实现方式中，该伪文件中还可以包含伪文件标识，该标识用于指示该伪文件是一个傀儡文件，并不是真正的第一图片文件，以防系统在找到该伪文件时，直接将该伪文件作为第一图片文件进行读取操作。
在得到该伪文件和该第二图片文件后，可将该伪文件和该第二图片文件保存于存储器当中，以取代第一图片文件，由于该伪文件和该第二图片文件所需的存储空间远小于该第一图片文件，因此，仅存储该伪文件和该第二图片文件而不存储该第一图片文件，能够极大的节约存储空间。
本申请实施例对于伪文件和第二图片文件的具体存储方式不进行限制。在一种可能的实现方式中，该伪文件和该第二图片文件可以作为两个独立的文件，分别进行存储。例如，如图3a所示，第一图片文件的文件名为A1，格式为JPEG格式。对第一图片文件进行编码后得到的第二图片文件的格式和文件名可以是任意的，只要满足第二图片文件所需的存储空间小于第一图片文件即可。伪文件的文件名为A1，格式为JPEG格式，为了使得系统可以通过该伪文件找到该第二图片文件，该伪文件中包括该第二图片的文件名和存储路径。这种实现方式的算法实现较为容易，能够降低算法实现的难度。
在另一种可能的实现方式中，该伪文件可以包含该第二图片文件。在存储伪文件的同时也存储了第二图片文件。例如，如图3b所示，整个伪文件的文件名为A1，整个伪文件的格式为JPEG格式，整个伪文件包括第二图片文件和伪文件头两部分内容，其中，伪文件头包括第二图片的存储路径。由于该伪文件包括第二图片文件，因此，第二图片文件的存储路径 可用于指示该第二图片文件从该伪文件的第几个字节开始。上述两种实现方式都可以实现：系统通过文件名和格式找到伪文件，再通过伪文件中的相关信息找到第二图片文件的效果。这种实现方式中仅保存一个伪文件，能够降低文件管理系统的复杂度，提升文件管理系统的效率。
应当注意，在不同的应用场景下，保存该伪文件和该第二图片文件的执行主体可能有所不同。在一种可能的实现方式中，上述图片处理方法在端侧执行，此时，保存的动作也由端侧执行。在一种可能的实现方式中，上述图片处理方法在云侧执行，此时，保存的动作也由云侧执行。在一种可能的实现方式中，上述图片处理方法可能涉及端云协同，或者两个端侧的协同，此时，可能由端侧(或其中一侧)执行步骤201和202，之后端侧将伪文件和第二图片文件发送至云侧(或另一侧)，由云侧(或另一侧)进行存储。
在一种可能的实现方式中，在获取到第一图片文件后，首先将第一图片文件存储在缓存中，然后执行上述图片处理方法，在保存了该伪文件和第二图片文件后，可以从缓存中清理该第一图片文件(即，释放缓存)，以节约缓存空间。
当系统需要重新调用第一图片文件时，例如，需要编辑该第一图片文件时，需要通过伪文件和第二图片文件恢复得到该第一图片文件。具体请参阅图4，图4为本申请实施例提供的图片处理方法的一个流程示意图，具体可以包括如下步骤：
401、响应于获取第一图片文件的请求信息，获取伪文件，该请求信息包括该第一图片文件的文件名和格式，该伪文件的文件名和格式与该第一图片文件相同。
当用户对需要对该图片文件执行打开、发送、编辑的操作时，相关应用需要发送获取第一图片文件的请求，以获取到第一图片文件，并执行响应的操作。为了获取第一图片文件，该请求信息中需要包含该第一图片文件的文件名和格式，用于查找第一图片信息，由于该伪文件与该第一图片文件的文件名和格式相同，因此，系统会把该伪文件误认为是所要获取的第一图片文件，进而获取该伪文件。
402、根据该伪文件，获取第二图片文件，该伪文件和该第二图片文件存在对应关系。该伪文件中包括伪文件标识，因此，在系统读取该伪文件的信息时会得知该伪文件并不是所要获取的第一图片文件，而是一个傀儡文件。此时，系统可以根据伪文件与第二图片文件的对应关系来获取第二图片文件。
403、将该第二图片文件解码为该第一图片文件，该第一图片文件与该第二图片文件的格式不同，该第二图片文件所需的存储空间小于该第一图片文件所需的存储空间。
在获取到第二图片文件后，可采用与上述编码方法相对应的解码方法，将该第二图片文件解码为第一图片文件，实现第一图片文件的还原，使得系统成功获取到请求信息中所需的第一图片文件。
在获取到第一图片文件后，可根据请求对该第一图片文件进行操作。当完成对该第一图片文件的操作后，可进入关闭流程。在一种可能的实现方式中，可以需要根据不同的操作执行不同的关闭流程。例如，在仅对该第一图片文件进行显示而不对该第一图片文件进行修改的情况下，伪文件和第二图片文件均不需要进行修改，此时可直接将该第一图片文件从缓存中删除(释放缓存)即可。在对该第一图片文件进行编辑的情况下，需要根据编辑后的第一图片文件，重新生成伪文件和/或第二图片文件，之后再将该第一图片文件从缓存中删除(释放缓存)。
应当理解，如图4所示的图片处理方法的部分实现方式与如图2所示的图片处理方法相 同或相似，为避免重复，此处不再进行赘述。
本申请实施例提供的图片处理方法，将原始图片文件编码为所需存储空间更小的图片文件，以节约保存该图片所需的存储空间；根据原始图片文件和编码后的图片文件生成伪文件，用该伪文件替代原始图片文件，以保证生态兼容性，适配各种应用软件；同时建立该伪文件与编码后的图片文件的对应关系，使得在访问该图片时能够通过伪文件和编码后的图片文件解码得到原始图片文件，不影响图片的正常使用。该方法能够在保证生态兼容性的同时，减小图片的存储空间，并做到应用无感。
在一种可能的实现方式中，上述图片处理方法可作为计算机设备的一个功能，该功能可在设置中通过一个开关进行设置，例如，该功能可以是系统升级的过程中提示用户的新功能。示例性的，该功能的控制界面如图5所示，用户可通过这个开关控制功能的开启或者关闭。
在上述对应实施例的基础上，为了更好的实施本申请实施例的上述方案，下面还提供用于实施上述方案的计算机设备。该计算机设备可以包括手持终端设备，如，手机、电脑、iPad等，也可以包括智能可穿戴设备，如，智能手环、智能手表、智能心率计等；还可以包括轮式移动设备，如，车辆(如自动驾驶车辆)、飞行器、机器人(如扫地机器人)等，具体本申请对计算机设备的产品形态不做限定，只要能用于实现本申请所述的图片处理方法的电子设备，都可以称为计算机设备。
请参阅图6，图6为本申请实施例提供的计算机设备的一种结构示意图，该计算机设备600包括：编码/解码模块601和生成模块602，其中，获取模块601，用于将第一图片文件编码为第二图片文件，该第一图片文件的格式与该第二图片文件的格式不同，该第二图片文件所需的存储空间小于该第一图片文件所需的存储空间；生成模块602，用于根据该第一图片文件和该第二图片文件生成伪文件，该伪文件与该第一图片文件的格式和文件名相同，该伪文件与该第二图片文件存在对应关系，该伪文件和该第二图片文件用于保存于存储器中。
在一种可能的设计中，计算机设备600还包括：获取模块603，用于响应于获取该第一图片文件的请求信息，获取该伪文件，基于该伪文件获取该第二图片文件；编码/解码模块601，还用于将该第二图片文件解码为第一图片文件。
在一种可能的设计中，编码/解码模块601具体用于，将该第一图片文件无损编码为第二图片文件。
在一种可能的设计中，该伪文件与该第二图片文件为两个独立的文件；该伪文件与该第二图片文件存在对应关系，包括：该伪文件包括该第二图片的文件名和存储路径。
在一种可能的设计中，该伪文件与该第二图片文件存在对应关系，包括：该伪文件包含所述第二图片文件；该伪文件中包括该第二图片的存储路径。
在一种可能的设计中，该第一图片文件为通过相机拍摄得到的；或者，该第一图片文件为通过应用程序接收得到的；或者，该第一图片文件为从存储器中获取的。
在一种可能的设计中，该第一图片文件的格式为以下图片格式中的任意一种：JPEG格式，PNG格式或者GIF格式。
在一种可能的设计中，该第一图片文件为从存储器中获取的，该第一图片的访问频率低于预设值。
在一种可能的设计中，计算机设备600还包括：发送模块604，用于将该伪文件和该第 二图片发送至存储器进行存储。
在一种可能的设计中，计算机设备600还包括：存储模块605，用于存储该伪文件和该第二图片。
请参阅图7，图7为本申请实施例提供的计算机设备的一种结构示意图，该计算机设备700包括：获取模块701和解码模块702，其中，获取模块701，用于响应于获取第一图片文件的请求信息，获取伪文件，该请求信息包括该第一图片的文件名和格式，该伪文件的文件名和格式与该第一图片相同；获取模块701还用于根据该伪文件，获取第二图片文件，该伪文件和该第二图片文件存在对应关系；解码模块702，用于将该第二图片文件解码为该第一图片文件，该第一图片文件与该第二图片文件的格式不同，该第二图片文件所需的存储空间小于该第一图片文件所需的存储空间。
在一种可能的设计中，该伪文件与该第二图片文件为两个独立的文件；该伪文件与该第二图片文件存在对应关系，包括：该伪文件包括该第二图片的文件名和存储路径。
在一种可能的设计中，该伪文件与该第二图片文件存在对应关系，包括：该伪文件包含所述第二图片文件；该伪文件中包括该第二图片的存储路径。
在一种可能的设计中，该第一图片文件的格式为以下图片格式中的任意一种：JPEG格式，PNG格式或者GIF格式。
本申请实施例还提供了一种计算机设备，请参阅图8，图8是本申请实施例提供的计算机设备一种结构示意图，为便于说明，仅示出了与本申请实施例相关的部分，具体技术细节未揭示的，请参照本申请实施例方法部分。该计算机设备800上可以部署有图6和图7对应实施例中所描述的模块，用于实现图6对应实施例中计算机设备600的功能和图7对应实施例中计算机设备700的功能。具体的，计算机设备800由一个或多个服务器实现，计算机设备800可因配置或性能不同而产生比较大的差异，可以包括一个或一个以上中央处理器(central processing units，CPU)822和存储器832，一个或一个以上存储应用程序842或数据844的存储介质830(例如一个或一个以上海量存储设备)。其中，存储器832和存储介质830可以是短暂存储或持久存储。存储在存储介质830的程序可以包括一个或一个以上模块(图示没标出)，每个模块可以包括对计算机设备800中的一系列指令操作。更进一步地，中央处理器822可以设置为与存储介质830通信，在计算机设备800上执行存储介质830中的一系列指令操作。
计算机设备800还可以包括一个或一个以上电源826，一个或一个以上有线或无线网络接口850，一个或一个以上输入输出接口858，和/或，一个或一个以上操作系统841，例如Windows ServerTM，Mac OS XTM，UnixTM，LinuxTM，FreeBSDTM等等。
本申请实施例中，中央处理器822，用于执行图2和图4对应实施例中的图片的处理方法。例如，中央处理器822可以用于：将第一图片文件编码为第二图片文件，该第一图片文件的格式与该第二图片文件的格式不同，该第二图片文件所需的存储空间小于该第一图片文件所需的存储空间，根据该第一图片文件和该第二图片文件生成伪文件，该伪文件与该第一图片文件的格式和文件名相同，该伪文件与该第二图片文件存在对应关系，该伪文件和该第二图片文件用于保存于存储器中
需要说明的是，中央处理器822还可以用于执行与本申请中图2和图4对应的方法实施例中任意一个步骤，具体内容可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。 本申请实施例中还提供一种计算机可读存储介质，该计算机可读存储介质中存储有用于进行信号处理的程序，当其在计算机上运行时，使得计算机执行如前述所示实施例描述中计算机设备所执行的步骤。
另外需说明的是，以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外，本申请提供的装置实施例附图中，模块之间的连接关系表示它们之间具有通信连接，具体可以实现为一条或多条通信总线或信号线。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现，当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现。一般情况下，凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现，而且，用来实现同一功能的具体硬件结构也可以是多种多样的，例如模拟电路、数字电路或专用电路等。但是，对本申请而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘、U盘、移动硬盘、只读存储器(read only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，训练设备，或者网络设备等)执行本申请各个实施例所述的方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。
所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、训练设备或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、训练设备或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个或多个可用介质集成的训练设备、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。

Claims (24)

  1. 一种图片处理方法，其特征在于，包括：
    将第一图片文件编码为第二图片文件，所述第一图片文件的格式与所述第二图片文件的格式不同，所述第二图片文件所需的存储空间小于所述第一图片文件所需的存储空间；
    根据所述第一图片文件和所述第二图片文件生成伪文件，所述伪文件与所述第一图片文件的格式和文件名相同，所述伪文件与所述第二图片文件存在对应关系，所述伪文件和所述第二图片文件用于保存于存储器中。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    响应于获取所述第一图片文件的请求信息，获取所述伪文件；
    基于所述伪文件获取所述第二图片文件；
    将所述第二图片文件解码为所述第一图片文件。
  3. 根据权利要求1或2所述的方法，其特征在于，所述将第一图片文件编码为第二图片文件，包括：
    将所述第一图片文件无损编码为第二图片文件。
  4. 根据权利要求1-3中任一项所述的方法，其特征在于：所述伪文件与所述第二图片文件为两个独立的文件；
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包括所述第二图片文件的文件名和存储路径。
  5. 根据权利要求1-3中任一项所述的方法，其特征在于，
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包含所述第二图片文件；
    所述伪文件中包括所述第二图片的存储路径。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，
    所述第一图片文件为通过相机拍摄得到的；或者，
    所述第一图片文件为通过应用程序接收得到的；或者，
    所述第一图片文件为从存储器中获取的。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，所述第一图片文件的格式为以下图片格式中的任意一种：
    JPEG格式，PNG格式或者GIF格式。
  8. 根据权利要求1-7中任一项所述的方法，其特征在于，
    所述第一图片文件为从存储器中获取的，所述第一图片文件的访问频率低于预设值。
  9. 根据权利要求1-8中任一项所述的方法，其特征在于，所述方法还包括：
    存储所述伪文件和所述第二图片。
  10. 根据权利要求1-8中任一项所述的方法，其特征在于，所述方法还包括：
    将所述伪文件和所述第二图片发送至存储器进行存储。
  11. 一种图片处理方法，其特征在于，包括：
    响应于获取第一图片文件的请求信息，获取伪文件，所述请求信息包括所述第一图片文件的文件名和格式，所述伪文件的文件名和格式与所述第一图片文件相同；
    根据所述伪文件，获取第二图片文件，所述伪文件和所述第二图片文件存在对应关系；
    将所述第二图片文件解码为所述第一图片文件，所述第一图片文件与所述第二图片文件的格式不同，所述第二图片文件所需的存储空间小于所述第一图片文件所需的存储空间。
  12. 根据权利要求11所述的方法，其特征在于：所述伪文件与所述第二图片文件为两个独立的文件；
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包括所述第二图片文件的文件名和存储路径。
  13. 根据权利要求11所述的方法，其特征在于，
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包含所述第二图片文件；
    所述伪文件中包括所述第二图片文件的存储路径。
  14. 一种计算机设备，其特征在于，包括：
    编码模块，用于将第一图片文件编码为第二图片文件，所述第一图片文件的格式与所述第二图片文件的格式不同，所述第二图片文件所需的存储空间小于所述第一图片文件所需的存储空间；
    生成模块，用于根据所述第一图片文件和所述第二图片文件生成伪文件，所述伪文件与所述第一图片文件的格式和文件名相同，所述伪文件与所述第二图片文件存在对应关系，所述伪文件和所述第二图片文件用于保存于存储器中。
  15. 根据权利要求14所述的设备，其特征在于，所述设备还包括：
    获取模块，用于响应于获取所述第一图片文件的请求信息，获取所述伪文件；
    所述获取模块还用于，基于所述伪文件获取所述第二图片文件；
    解码模块，用于将所述第二图片文件解码为所述第一图片文件。
  16. 根据权利要求14或15所述的设备，其特征在于，所述编码模块具体用于：
    将所述第一图片文件无损编码为所述第二图片文件。
  17. 根据权利要求14-16中任一项所述的设备，其特征在于：所述伪文件与所述第二图片文件为两个独立的文件；
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包括所述第二图片文 件的文件名和存储路径。
  18. 根据权利要求14-16中任一项所述的设备，其特征在于，
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包含所述第二图片文件；
    所述伪文件中包括所述第二图片文件的存储路径。
  19. 一种计算机设备，其特征在于，包括：
    获取模块，用于响应于获取第一图片文件的请求信息，获取伪文件，所述请求信息包括所述第一图片文件的文件名和格式，所述伪文件的文件名和格式与所述第一图片文件相同；
    所述获取模块，还用于根据所述伪文件，获取第二图片文件，所述伪文件和所述第二图片文件存在对应关系；
    解码模块，用于将所述第二图片文件解码为所述第一图片文件，所述第一图片文件与所述第二图片文件的格式不同，所述第二图片文件所需的存储空间小于所述第一图片文件所需的存储空间。
  20. 根据权利要求19所述的设备，其特征在于：所述伪文件与所述第二图片文件为两个独立的文件；
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包括所述第二图片文件的文件名和存储路径。
  21. 根据权利要求19所述的设备，其特征在于，
    所述伪文件与所述第二图片文件存在对应关系，包括：所述伪文件包含所述第二图片文件；
    所述伪文件中包括所述第二图片文件的存储路径。
  22. 一种计算机设备，包括处理器和存储器，所述处理器与所述存储器耦合，其特征在于，
    所述存储器，用于存储程序；
    所述处理器，用于执行所述存储器中的程序，使得所述计算机设备执行如权利要求1-10或11-13中任一项所述的方法。
  23. 一种计算机可读存储介质，包括程序，当其在计算机上运行时，使得计算机执行如权利要求1-10或11-13中任一项所述的方法。
  24. 一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如权利要求1-10或11-13中任一项所述的方法。
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