WO2020048189A1

WO2020048189A1 - Image generation

Info

Publication number: WO2020048189A1
Application number: PCT/CN2019/092547
Authority: WO
Inventors: 钟建华
Original assignee: 北京三快在线科技有限公司
Priority date: 2018-09-07
Filing date: 2019-06-24
Publication date: 2020-03-12
Also published as: CN109165357A

Abstract

An image generation method, relating to the technical field of computers. The image generation method comprises: receiving a webpage conversion request, the webpage conversion request comprising an address of a reference webpage (101); generating an image on the basis of the process of accessing the address of the reference webpage (102); and uploading the image to a preset storage server and obtaining a storage address of the image, wherein the storage address is to be returned to an initiator end of the webpage conversion request (103).

Description

Picture generation

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 7, 2018, with application number 201811044887.9, and the invention name is "Picture Generation Method, Server, Electronic Device, and Readable Storage Medium" Citation incorporated in this application

Technical field

Embodiments of the present disclosure relate to the field of computer technology, and in particular, to a picture generating method, a server, an electronic device, and a readable storage medium.

Background technique

With the widespread use of social platforms, users can share links through social platforms. With the generation of QR codes, pictures with QR codes are used instead of links as sharing objects, which can effectively increase users' interest in sharing objects.

In the prior art, generating a picture with a two-dimensional code can be completed on a browser side. The main steps include: First, traverse the DOM (Document Object Model) of the HTML (Hyper Text Markup Language) web page through a JavaScript script, and convert the CSS attributes of each element into a Canvas drawing operation; Then, draw the converted Canvas into an image.

However, due to the limited computing power of the browser, it cannot support the conversion of web pages with complex page layouts; the performance of Canvas limits the conversion speed, success rate, and quality; only CSS2 attributes can be supported during conversion, and CSS3 attributes cannot be supported; the browser depends on the webpage Processing power, unable to support the conversion request of the applet.

Summary of the Invention

Embodiments of the present disclosure provide a picture generating method, a server, an electronic device, and a readable storage medium to solve the above-mentioned problems in the prior art picture generating.

In a first aspect, an embodiment of the present disclosure provides a picture generating method, including:

Receiving a webpage conversion request, where the webpage conversion request includes a reference webpage address;

Generating a picture according to an access process to the reference webpage address;

Upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.

In a second aspect, an embodiment of the present disclosure provides a picture generating server, including:

A conversion request receiving module, configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address;

A webpage conversion module, configured to generate a picture according to an access process to the reference webpage address;

The picture storage module is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.

According to a third aspect, an embodiment of the present disclosure provides an electronic device, including:

The processor, the memory, and the computer program stored on the memory and executable on the processor are characterized in that the processor implements the foregoing picture generating method when the processor executes the computer program.

In a fourth aspect, an embodiment of the present disclosure provides a computer program including computer-readable code that, when the computer-readable code runs on a computing processing device, causes the computing processing device to execute the foregoing picture generating method.

In a fifth aspect, an embodiment of the present disclosure provides a computer-readable storage medium in which the foregoing computer program is stored.

An embodiment of the present disclosure provides a picture generating method. By receiving a web page conversion request, the web page conversion request includes a reference web page address; generating a picture according to an access process to the reference web page address; and uploading the picture to a preset The storage server obtains a storage address of the picture, and the storage address is used to return to the initiator of the webpage conversion request. The embodiments of the present disclosure can use a server to convert a web page into an image, support web page conversion with complex page layouts, avoid using Canvas to limit the conversion speed, success rate, and quality, and do not depend on the conversion of CSS attributes; Processing capabilities can support cross-platform conversion and applet conversion.

The above description is only an overview of the technical solutions of the present disclosure. In order to better understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the description, and in order to make the above and other objects, features, and advantages of the present disclosure more comprehensible. The following specifically mentions specific implementations of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the drawings used in the description of the embodiments of the present disclosure are briefly introduced below. Obviously, the drawings in the following description are just some implementations of the present disclosure. For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 shows a flowchart of specific steps of a picture generating method according to an embodiment of the present disclosure;

2 is a schematic diagram of an interaction relationship between each picture generating server and other devices in the embodiment of the present disclosure;

FIG. 3 is a flowchart of specific steps of another picture generating method according to an embodiment of the present disclosure; FIG.

4 is a structural diagram of a picture generating server provided by an embodiment of the present disclosure;

5 is a structural diagram of another picture generation server provided by an embodiment of the present disclosure;

FIG. 6 schematically illustrates a block diagram of an electronic device for performing a method according to the present disclosure; and

FIG. 7 schematically illustrates a storage unit for holding or carrying program code implementing a method according to the present disclosure.

Specific Embodiments In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. The described embodiments are part of the disclosure, but not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present disclosure.

Example one

Referring to FIG. 1, which shows a flowchart of steps in a method for generating a picture provided by an embodiment of the present disclosure, including:

Step 101: Receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.

The embodiments of the present disclosure are applied to a picture generation server, which can convert a reference webpage into a picture and return the storage location of the picture concurrently. The server may be a background server corresponding to a browser (for example, Chrome).

In addition, the server system is Centos7, and the operating environment is Nodejs 8.0 and above. When installing Puppeteer's Npm package, Google ’s official Chromium image is not accessible in the country, so it needs to be set to an image download address available in China. In order for Chromium to run on the server, you also need to install some C ++ 11 dependent libraries. In order to solve the problem of Chinese garbled characters and to better restore the effect of screenshot web pages, Chinese fonts such as Pingfang need to be installed.

The above dependent libraries and font files are not available on ordinary servers, and you need to log in to the server manually to complete the operation. In order to realize the automatic expansion of the server, the above manual operations can be encapsulated into script commands. Therefore, you only need to execute the installation command to complete the installation of all the dependent libraries and font files mentioned above.

As shown in FIG. 2, when a user wants to share a target web page (such as a review app) on another social platform such as QQ or WeChat, a web page conversion request is sent to the image generation server. It can be understood that the webpage conversion request carries a reference webpage address. The reference webpage is the current webpage where the target webpage is shared. The current webpage can be the same as the target webpage, or it can be set to another webpage according to the business scenario, for example, the event homepage corresponding to the webpage.

The embodiment of the present disclosure can generate a personalized picture according to the current webpage, especially personal information exists in the current webpage, for example, personal picture, account and other information.

It can be understood that the webpage conversion request may be initiated by a server corresponding to the social platform, or may be initiated by a terminal where the social platform is located, which is not limited in the embodiments of the present disclosure.

Step 102: Generate a picture according to an access process to the reference webpage address.

Specifically, the reference webpage address is accessed, and the data of the webpage after rendering is saved as a picture.

In the embodiment of the present disclosure, the picture generating server may access the reference webpage address through a browser (for example, Chromium) without a UI (User Interface) mode. Among them, Chromium is Google's open source browser, which uses the same kernel as Chrome, and can run in a UI-less mode on a Linux server. The Google team open sourced the Nodejs library puppeteer, which can operate Chromium through API (Application Programming Interface).

As shown in FIG. 2, the image generation server accesses the reference webpage address to obtain webpage data from a background server corresponding to the reference webpage address. Thereby, the webpage data can be rendered and parsed to obtain the rendered webpage data and saved as a picture.

Step 103: Upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.

As shown in FIG. 2, the image generating server and the storage server may be connected through a network, so as to implement image upload and return of the storage address.

The storage location may be a network address of the storage server plus a picture identifier. Therefore, the target sharing user can download the picture from the storage address. It should be noted that the storage address is different from the web page address. The storage address is the storage address of the picture, and the web page address is the access address for the web page. The user ’s terminal first downloads the picture from the storage address, and then obtains the web page address from the picture , Jump to a landing page, which is a page shared with users.

In an actual application, after uploading a picture to a storage server, the picture is deleted from the picture generating server to prevent the picture generating server from storing too many pictures, resulting in performance degradation.

It can be understood that the initiator can be the server corresponding to the social platform or the terminal where the social platform is located. As shown in FIG. 2, the image generation server returns the storage address to the initiator.

In summary, an embodiment of the present disclosure provides a picture generating method, which includes: receiving a web page conversion request, the web page conversion request including a reference web page address; and generating a picture according to an access process to the reference web page address Uploading the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request. You can use the server to convert web pages into images, support web page conversion with complex page layouts, avoid using Canvas to limit conversion speed, success rate, and quality, do not depend on CSS property conversions; do not depend on the browser's ability to process web pages, and can support Cross-platform conversion and applet conversion.

Example two

This embodiment of the present application describes an optional picture generation method.

Referring to FIG. 3, a flowchart of specific steps of another method for generating a picture provided by an embodiment of the present disclosure is shown.

Step 201: Receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.

For this step, refer to the detailed description of step 101, and details are not described herein again.

In step 202, if the request parameter verification fails, access to the reference webpage address is denied, and a first prompt message is returned.

The request parameters are used to control the style, size, and format of the picture, including but not limited to: screenshot mode, originating terminal, and pixel compression ratio.

The initiating terminal is the terminal where the webpage conversion request is initiated, for example, a tablet computer, a mobile phone with various screen sizes, etc., because different screen sizes require different sizes of displayed pictures, and therefore need to know the type of the terminal. You can determine the screen size to produce a picture that fits it.

In addition, different screenshot modes and pixel compression ratios will result in different images.

Specifically, the length, format, and content of the request parameters can be verified. For example, if the length of a parameter is required to be 10 bits, then the parameter verification fails when the length is 8. For another example, if a parameter requires a mixture of numbers and characters, the verification of a purely numeric parameter fails; for example, the value of a parameter If it is not a preset value range, the verification fails.

It can be understood that if all parameters are successfully verified, the request is successful, and a corresponding image is generated for the webpage conversion request. If one of the parameters fails, the request fails to verify the parameters, and returns a The first prompt message.

The embodiments of the present disclosure can first check the request parameters to avoid a failure in generating a picture or an error in generating a picture.

In step 203, if the reference webpage address is not in the preset whitelist, access to the reference webpage address is denied, and a second prompt message is returned.

Among them, the white list may consist of addresses of reference webpage addresses, and webpages not in the whitelist are not allowed to generate images. The web addresses in the whitelist are legal or allowed web addresses.

It can be understood that if the reference web page address is in the white list, a picture is generated for the web page conversion request; if the reference web page address is not in the white list, a second prompt message indicating that the reference web page address is not in the white list is returned.

The embodiments of the present disclosure can perform image conversion on a designated webpage, avoid image conversion of illegal webpages, and improve the success rate of webpage conversion images.

Step 204: Perform rendering analysis on the webpage data corresponding to the reference webpage address to obtain rendered data.

Before the browser can display the webpage data, the browser needs to render and parse the webpage data. In the embodiment of the present disclosure, the data after rendering and parsing is not displayed. Since the data at this time already has a display effect, it can be saved as a picture, and the obtained picture has the same display effect as the web page.

Step 205: Add the two-dimensional code data to the rendering data.

The two-dimensional code data corresponds to a web page address, and the user can access the web page corresponding to the two-dimensional code through the picture. For example, the user can get the operation menu by long-pressing the picture, and choose to access the web page corresponding to the QR code from the menu, and then the user can switch to the web page.

It can be understood that the position of the two-dimensional code data in the rendering data is not limited. In addition, it can be a barcode or other graphic code that binds a web address.

Step 206: Save the rendered data as a picture.

Specifically, the picture may be saved as a binary stream. In step 205, the picture includes two-dimensional code data.

Step 207: Upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.

For this step, refer to the detailed description of step 103, and details are not described herein again.

Step 208: If the cache flag corresponds to a cache strategy, save the storage address and the webpage conversion request to a preset cache area.

The location of the buffer area may be set according to an actual application scenario, and is not limited in the embodiment of the present disclosure.

Embodiments of the present disclosure may cache a storage address of a picture after generating the picture for the first time for subsequent direct use.

Step 209: In the case that the cache flag corresponds to a cache strategy, obtain a storage address corresponding to the webpage conversion request from the cache area.

The embodiments of the present disclosure can use cached pictures to avoid repeatedly generating pictures, and improve the efficiency of converting web pages into pictures.

It can be understood that if the reference webpage address included in the webpage conversion request is not used for generating pictures for the first time, step 209 may precede step 204.

Step 210: Generate a picture according to an access process to the reference webpage address in a case where the cache flag correspondingly does not adopt a cache strategy or fails to obtain a storage address from the cache.

The embodiments of the present disclosure can preferentially return the storage address in the cache area, thereby improving the efficiency of generating pictures.

Understandably, steps 204 to 206 can be used to generate pictures.

Specifically, when a webpage conversion request is received, first, whether the request supports caching; then, if caching is supported, the storage address of the picture is obtained from the cache according to the reference webpage address and the request parameters. When the record with the reference web page address and the request parameter match, it means hitting the cache. The storage location in the record is the storage location of the picture corresponding to the reference web page address. Finally, if the cache misses, or if caching is not supported, step 102 Or 204 to 206 methods to generate pictures.

In summary, an embodiment of the present disclosure provides a picture generating method, which includes: receiving a web page conversion request, the web page conversion request including a reference web page address; and generating a picture according to an access process to the reference web page address Uploading the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request. You can use the server to convert web pages into images, support web page conversion with complex page layouts, avoid using Canvas to limit conversion speed, success rate, and quality, do not depend on CSS property conversions; do not depend on the browser's ability to process web pages, and can support Cross-platform conversion and applet conversion. In addition, request parameter verification can improve the success rate of image generation, whitelist verification can avoid illegal requests, and caching can improve the efficiency of image generation.

Example three

Referring to FIG. 4, a structural diagram of a picture generating server is shown as follows.

The conversion request receiving module 301 is configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.

The webpage conversion module 302 is configured to generate a picture according to an access process to the reference webpage address.

The picture storage module 303 is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.

In summary, an embodiment of the present disclosure provides a picture generating server. The server includes a conversion request receiving module for receiving a webpage conversion request, and the webpage conversion request includes a reference webpage address; the webpage conversion module is configured to: Generating a picture according to an access process to the reference webpage address; a picture storage module, configured to upload the picture to a preset storage server to obtain a storage address of the picture, and the storage address is used to return to the webpage for conversion The originator of the request. You can use the server to convert web pages into images, support web page conversion with complex page layouts, avoid using Canvas to limit conversion speed, success rate, and quality, do not depend on CSS property conversions; do not depend on the browser's ability to process web pages, and can support Cross-platform conversion and applet conversion.

Embodiment 4

Referring to FIG. 5, a structural diagram of another picture generation server is shown, as follows.

The conversion request receiving module 401 is configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address.

The first rejection conversion module 402 is configured to reject access to the reference webpage address and return a first prompt message if the request parameter verification fails.

The second rejection conversion module 403 is configured to, when the reference webpage address is not in the preset white list, deny access to the reference webpage address and return a second prompt message.

The webpage conversion module 404 is configured to generate a picture according to an access process to the reference webpage address. Optionally, in another embodiment of the present disclosure, the web page conversion module 404 includes:

The rendering data acquisition sub-module 4041 is configured to perform rendering analysis on the webpage data corresponding to the reference webpage address to obtain rendering data.

A two-dimensional code adding sub-module 4042 is configured to add the two-dimensional code data to the rendering data.

The picture generation sub-module 4043 is configured to save the rendered data as a picture.

The picture storage module 405 is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.

A storage address cache module 406 is configured to save the storage address and the webpage conversion request to a preset cache area when the cache flag corresponds to a cache strategy.

A storage address obtaining module 407 is configured to obtain a storage address corresponding to the webpage conversion request from the cache area when the cache flag corresponds to a cache policy.

The second webpage conversion module 408 is configured to generate a picture according to an access process to the reference webpage address in a case where the cache flag correspondingly does not adopt a cache policy or fails to obtain a storage address from the cache.

In summary, an embodiment of the present disclosure provides a picture generating server. The server includes a conversion request receiving module address block for receiving a webpage conversion request, and the webpage conversion request includes a reference webpage address; a first rejection A conversion module configured to refuse access to the reference webpage address and return a first prompt message if the request parameter verification fails, and a second rejection conversion module is configured to prevent the reference webpage address from being in a preset white space; In the case of the list, access to the reference webpage address is denied, and a second prompt message is returned; the webpage conversion module is used to generate a picture according to the access process to the reference webpage address; the picture storage module is used to upload the picture To a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request; and a storage address caching module is configured to use a caching strategy corresponding to the caching flag, Storing the storage address and the webpage conversion request in a preset buffer area; the storage address acquisition module uses In the case where the cache flag corresponds to a cache strategy, a storage address corresponding to the webpage conversion request is obtained from the cache area. You can use the server to convert web pages into images, support web page conversion with complex page layouts, avoid using Canvas to limit conversion speed, success rate, and quality, do not depend on CSS property conversions; do not depend on the browser's ability to process web pages, and can support Cross-platform conversion and applet conversion. In addition, request parameter verification can improve the success rate of image generation, whitelist verification can avoid illegal requests, and caching can improve the efficiency of image generation.

An embodiment of the present disclosure further provides an electronic device including a processor, a memory, and a computer program stored on the memory and executable on the processor. The processor is implemented when the processor executes the computer program. The picture generating method of the foregoing embodiment.

An embodiment of the present disclosure also provides a computer program including computer-readable code that, when the computer-readable code runs on a computing processing device, causes the computing processing device to execute the picture generating method of the foregoing embodiment.

An embodiment of the present disclosure also provides a computer-readable storage medium in which the computer program of the foregoing embodiment is stored.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the related parts, refer to the description of the method embodiment.

The device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, may be located One place, or it can be distributed across multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the objective of the solution of this embodiment. Those of ordinary skill in the art can understand and implement without creative labor.

The various component embodiments of the present disclosure may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that a microprocessor or a digital signal processor (DSP) may be used in practice to implement some or all functions of some or all components in a computing processing device according to an embodiment of the present disclosure. The present disclosure may also be implemented as a device or device program (e.g., a computer program and a computer program product) for performing part or all of the methods described herein. Such a program that implements the present disclosure may be stored on a computer-readable storage medium or may have the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

For example, FIG. 6 illustrates a computing processing device that can implement a method according to the present disclosure. The computing processing device traditionally includes a processor 510 and a computer program product or computer-readable storage medium in the form of a memory 520. The memory 520 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), an EPROM, a hard disk, or a ROM. The memory 520 has a storage space 530 of program code 531 for performing any of the method steps in the above method. For example, the storage space 530 for program code may include respective program codes 531 respectively for implementing various steps in the above method. These program codes can be read from or written into one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards or floppy disks. Such a computer program product is typically a portable or fixed storage unit as described with reference to FIG. 7. The storage unit may have a storage section, a storage space, and the like arranged similarly to the memory 520 in the computing processing device of FIG. 6. The program code may be compressed, for example, in a suitable form. Generally, the storage unit includes computer-readable code 531 ', that is, code that can be read by, for example, a processor such as 510, and these codes, when run by a computing processing device, cause the computing processing device to execute the method described above Steps.

As used herein, "one embodiment," "an embodiment," or "one or more embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Also, please note that the word examples "in one embodiment" herein do not necessarily refer to the same embodiment.

In the description provided here, numerous specific details are explained. However, it can be understood that the embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of the specification.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claim listing several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third does not imply any order. These words can be interpreted as names.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, but not limited thereto. Although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still Modifications to the technical solutions described in the foregoing embodiments, or equivalent replacements of some of the technical features thereof; and these modifications or replacements do not depart the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

A picture generation method includes:

Receiving a webpage conversion request, where the webpage conversion request includes a reference webpage address;

Generating a picture according to an access process to the reference webpage address;

Upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
The method according to claim 1, wherein the step of generating a picture according to an access process to the reference webpage address comprises:

Performing rendering analysis on the webpage data corresponding to the reference webpage address to obtain rendering data;

Save the rendered data as a picture.
The method according to claim 2, wherein the webpage conversion request further comprises two-dimensional code data, and the method further comprises:

The two-dimensional code data is added to the rendering data.
The method according to claim 1, wherein the webpage conversion request includes a cache flag, and the method further comprises:

In a case where the cache flag corresponds to a cache strategy, the storage address and the webpage conversion request are saved to a preset cache area.
The method according to claim 4, wherein the method further comprises:

When the cache flag corresponds to a cache strategy, a storage address corresponding to the webpage conversion request is obtained from the cache area.
The method according to claim 5, wherein the method further comprises:

When the cache flag correspondingly does not adopt a cache strategy, or fails to obtain a storage address from the cache, a picture is generated according to an access process to the reference web page address.
The method according to claim 1, wherein the reference webpage address includes a request parameter, and before the step of accessing the reference webpage address, further comprising:

In the case that the request parameter verification fails, access to the reference webpage address is denied, and a first prompt message is returned.
The method according to claim 1, further comprising:

If the reference webpage address is not in the preset whitelist, the access to the reference webpage address is denied, and a second prompt message is returned.
A picture generating server, wherein the server includes:

A conversion request receiving module, configured to receive a webpage conversion request, where the webpage conversion request includes a reference webpage address;

A webpage conversion module, configured to generate a picture according to an access process to the reference webpage address;

The picture storage module is configured to upload the picture to a preset storage server to obtain a storage address of the picture, where the storage address is used to return to the initiator of the webpage conversion request.
An electronic device includes:

A processor, a memory, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the program, the processor implements one or more of claims 1 to 8 Image generation method described above.
A computer program includes computer-readable code that, when the computer-readable code runs on a computing processing device, causes the computing processing device to execute the picture generating method according to any one of claims 1 to 8.
A computer-readable storage medium in which a computer program according to claim 11 is stored.