WO2021109691A1

WO2021109691A1 - Blockchain-based picture watermark processing method and apparatus

Info

Publication number: WO2021109691A1
Application number: PCT/CN2020/117918
Authority: WO
Inventors: 徐惠
Original assignee: 支付宝(杭州)信息技术有限公司
Priority date: 2019-12-03
Filing date: 2020-09-25
Publication date: 2021-06-10
Also published as: CN111145069B; CN111145069A

Abstract

Disclosed in one or more embodiments of the present description are a blockchain-based picture watermark processing method and apparatus, for use in reducing the risk of cracking a picture watermark. The method comprises: obtaining a first watermark element corresponding to a picture to be processed, the first watermark element comprising copyright related information of the picture to be processed; performing hash encryption processing on the first watermark element by using a hash encryption algorithm to obtain a first hash value corresponding to the first watermark element; performing watermark encryption processing on the picture to be processed by using a watermark picture corresponding to the first hash value to obtain a target picture; and determining verification information of picture associated content of the target picture, and uploading the verification information to a blockchain. The picture associated content comprises the first watermark element. The verification information comprises the first hash value.

Description

Image watermark processing method and device based on blockchain

Technical field

This article relates to the field of image processing technology, and in particular to a method and device for image watermark processing based on blockchain.

Background technique

China's visual material market has a broad prospect and huge space, and the proportion of the original picture market in the advertising market is only 0.2%, which means that most of the share has been eroded by piracy, and the picture copyright market is on the line. At present, it is mainly used to imprint copyright pictures with clear watermarks or ordinary blind watermarks to help traceability and rights protection. Among them, the clear watermark is to put the watermark on the picture in plaintext, and the ordinary blind watermark is to convert the watermark string into the picture, and the picture is hidden in the original copyright picture through two-dimensional Fourier transform and inverse Fourier transform.

However, the current watermark pictures still have some defects. For a clear watermark, its full coverage affects the visual effect of the image, but if it is partially covered, the watermark can be cropped by rotation, cropping, screenshots, etc. later, which is not suitable for most non-sample images. way. For ordinary blind watermarks, under certain conditions, after brute force cracking of the blind watermarks of pictures, the watermark string can be obtained, so that the user name ID and other private information contained in the watermark can be known. Therefore, it is not suitable for certain conditions. Some use occasions that have advanced requirements for privacy; and it is possible to reversely crack all the pictures of the platform based on the watermark. Once a picture is cracked and the key generation rules are obtained, the whole platform has the possibility of leaking.

Summary of the invention

On the one hand, one or more embodiments of this specification provide a block chain-based image watermark processing method, including: obtaining a first watermark element corresponding to a picture to be processed, where the first watermark element contains information about the picture to be processed Copyright related information. Using a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain the first hash value corresponding to the first watermark element. Perform watermark encryption processing on the picture to be processed by using the watermark picture corresponding to the first hash value to obtain a target picture. The verification information of the picture-related content of the target picture is determined, and the verification information is uploaded to the blockchain. The picture-related content includes the first watermark element. The verification information includes the first hash value.

On the other hand, one or more embodiments of this specification provide a block chain-based image watermark processing method, including: acquiring a target picture after watermark encryption processing, and the target picture is embedded with a first hash value corresponding to In the first watermark picture, the first hash value is obtained by hashing and encrypting the first watermark element through a hash encryption algorithm, and the first watermark element contains copyright related information of the target picture. The first watermark picture is extracted from the target picture, and the first hash value is determined based on the first watermark picture. Obtain verification information of the picture-related content corresponding to the target picture stored in the blockchain, where the picture-related content includes a first synthesis element used when performing the watermark encryption process, and the verification information includes the first synthesis The second hash value corresponding to the element. The first hash value is matched with the verification information to obtain a matching result.

In another aspect, one or more embodiments of the present specification provide a block chain-based image watermark processing device, including: a first acquisition module for acquiring a first watermark element corresponding to a picture to be processed, the first watermark element including Copyright related information of the picture to be processed. The first encryption module uses a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain the first hash value corresponding to the first watermark element. The second encryption module uses the watermark image corresponding to the first hash value to perform watermark encryption processing on the to-be-processed image to obtain a target image. The upload module determines the verification information of the picture-related content of the target picture, uploads the verification information to the blockchain, the picture-related content includes the first watermark element, and the verification information includes the first Hash value.

In another aspect, one or more embodiments of the present specification provide a block chain-based image watermark processing device, including: a second acquisition module, which acquires a target picture after watermark encryption processing, and the target picture is embedded with a first A first watermark image corresponding to a hash value, where the first hash value is obtained by hashing and encrypting a first watermark element through a hash encryption algorithm, and the first watermark element contains the copyright-related information of the target image information. The extraction module extracts the first watermark picture from the target picture, and determines the first hash value based on the first watermark picture. The third obtaining module obtains the verification information of the picture-related content corresponding to the target picture stored in the blockchain, the picture-related content including the first composite element used when the watermark encryption processing is performed, and the verification information includes The second hash value corresponding to the first composite element. The first matching module matches the first hash value with the verification information to obtain a matching result.

In another aspect, one or more embodiments of the present specification provide a blockchain-based image watermark processing device, including: a processor; and a memory arranged to store computer-executable instructions that are being executed When enabling the processor to obtain a first watermark element corresponding to the picture to be processed, the first watermark element includes copyright related information of the picture to be processed. Using a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain the first hash value corresponding to the first watermark element. Perform watermark encryption processing on the picture to be processed by using the watermark picture corresponding to the first hash value to obtain a target picture. The verification information of the picture-related content of the target picture is determined, and the verification information is uploaded to the blockchain. The picture-related content includes the first watermark element. The verification information includes the first hash value.

In another aspect, one or more embodiments of the present specification provide a blockchain-based image watermark processing device, including: a processor; and a memory arranged to store computer-executable instructions that are being executed When the processor is made to obtain the target picture after the watermark encryption processing, the first watermark picture corresponding to the first hash value is embedded on the target picture, and the first hash value is a pair of The first watermark element is obtained by performing hash encryption processing, and the first watermark element contains the copyright related information of the target picture. The first watermark picture is extracted from the target picture, and the first hash value is determined based on the first watermark picture. Obtain verification information of the picture-related content corresponding to the target picture stored in the blockchain, where the picture-related content includes a first synthesis element used when performing the watermark encryption process, and the verification information includes the first synthesis The second hash value corresponding to the element. The first hash value is matched with the verification information to obtain a matching result.

In another aspect, one or more embodiments of this specification provide a storage medium for storing computer-executable instructions that, when executed, implement the following process: obtain the first watermark element corresponding to the picture to be processed, The first watermark element includes copyright related information of the picture to be processed. Using a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain the first hash value corresponding to the first watermark element. Perform watermark encryption processing on the picture to be processed by using the watermark picture corresponding to the first hash value to obtain a target picture. The verification information of the picture-related content of the target picture is determined, and the verification information is uploaded to the blockchain. The picture-related content includes the first watermark element. The verification information includes the first hash value.

In another aspect, one or more embodiments of this specification provide a storage medium for storing computer-executable instructions that, when executed, implement the following process: obtain a target picture after watermark encryption processing, and A first watermark picture corresponding to a first hash value is embedded on the target picture, and the first hash value is obtained by hashing and encrypting a first watermark element by a hash encryption algorithm, and the first watermark element includes The copyright related information of the target picture. The first watermark picture is extracted from the target picture, and the first hash value is determined based on the first watermark picture. Obtain verification information of the picture-related content corresponding to the target picture stored in the blockchain, where the picture-related content includes a first synthesis element used when performing the watermark encryption process, and the verification information includes the first synthesis The second hash value corresponding to the element. The first hash value is matched with the verification information to obtain a matching result.

Description of the drawings

In order to more clearly explain the technical solutions in one or more embodiments of this specification, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only one of the specification. For some of the embodiments described in or multiple embodiments, for those of ordinary skill in the art, other drawings may be obtained based on these drawings without creative work.

Fig. 1 is a schematic flowchart of a method for processing a picture watermark based on a blockchain according to an embodiment of the present specification;

Fig. 2 is a schematic display diagram of a watermark picture according to an embodiment of this specification;

Fig. 3 is a schematic flowchart of a method for processing a picture watermark based on a blockchain according to another embodiment of the present specification;

Fig. 4 is a schematic block diagram of a block chain-based image watermark processing device according to an embodiment of the present specification;

Fig. 5 is a schematic block diagram of a block chain-based image watermark processing device according to another embodiment of the present specification;

Fig. 6 is a schematic block diagram of a block chain-based image watermark processing device according to an embodiment of the present specification;

Fig. 7 is a schematic block diagram of a block chain-based image watermark processing device according to another embodiment of the present specification.

Detailed ways

One or more embodiments of this specification provide a block chain-based image watermark processing method and device, which are used to reduce the risk of cracking the image watermark.

In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the following will be combined with the drawings in one or more embodiments of this specification to compare the technical solutions in one or more embodiments of this specification. The technical solution is described clearly and completely. Obviously, the described embodiments are only a part of the embodiments in this specification, rather than all the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of this document.

Fig. 1 is a schematic flowchart of a block chain-based image watermark processing method according to an embodiment of the present specification. As shown in Fig. 1, the method includes steps S102 to S108.

S102: Obtain a first watermark element corresponding to the picture to be processed, where the first watermark element contains copyright related information of the picture to be processed.

Among them, the copyright-related information can include the image identification (such as the image ID number), the source of the image (such as the channel information for obtaining the image to be processed), the time when the image was uploaded, and the user information of the user related to the image (such as the ID number of the image processor or the image author). , Name, nickname, etc.), designated characters and other information. The designated character may be a random character determined for the picture to be processed.

S104: Perform hash encryption processing on the first watermark element using a hash encryption algorithm to obtain a first hash value corresponding to the first watermark element.

S106: Perform watermark encryption processing on the image to be processed using the watermark image corresponding to the first hash value to obtain the target image.

S108: Determine the verification information of the picture-related content of the target picture, and upload the verification information to the blockchain. The picture-related content includes a first watermark element, and the verification information includes a first hash value.

Among them, the verification information may be a hash value that can be uploaded to the blockchain. Based on this, determining the verification information of the image-related content is to convert the image-related content into a corresponding hash value.

In this embodiment, by obtaining the first watermark element corresponding to the picture to be processed, and performing hash encryption processing on the first watermark element, the first hash value corresponding to the first watermark element is obtained, and then the first hash value is used to correspond to Perform watermark encryption processing on the image to be processed for the watermark picture to obtain the target picture. The watermark encryption process of the image to be processed adopts the watermark image after the hash encryption. Due to the irreversibility of the hash encryption algorithm, the security level of the image watermark can be improved, and the risk of the first watermark element carried in the watermark image is reduced. Therefore, the copyright related information of the picture contained in the first watermark element is protected. In addition, by uploading the verification information (including the hash value of the first watermark element) of the image-related content of the target image to the blockchain, the first watermark element on the target image can be retained by the blockchain for subsequent passage Verify the image watermark to protect the copyright information of the image.

In one embodiment, when the watermark image corresponding to the first hash value is used to perform watermark encryption processing on the image to be processed, the first hash value is first processed into images to obtain the watermark image corresponding to the image to be processed, and then the watermark image Add to the pending picture.

Wherein, the image processing of the first hash value may include the following two methods.

Manner 1: Use an existing image conversion method to directly convert the format of the first hash value into a picture format, thereby obtaining a picture corresponding to the first hash value, that is, a watermark picture.

Manner 2: Obtain the second watermark element conforming to the specified format, and perform picture synthesis on the first hash value and the second watermark element, so as to obtain the watermark picture corresponding to the first hash value. Among them, the designated format includes a picture format. For example, a picture is randomly obtained as the second watermark element, and the randomly obtained picture and the first hash value are combined into a picture, thereby obtaining a watermark picture.

In one embodiment, the first watermark element can be determined by the copyright related information of the picture to be processed. Specifically, first obtain the copyright-related information of the picture to be processed, and then process the copyright-related information according to preset rules to generate the first watermark element corresponding to the picture to be processed. Among them, the copyright-related information of the image to be processed may include the image identifier (such as the image ID number), the source of the image (such as the channel information for obtaining the image to be processed), the time when the image was uploaded, and the user information of the user related to the image (such as the image processor or the image Author's ID number, name, nickname, etc.), designated characters and other information. The designated character may be a random character determined for the picture to be processed.

The preset rule may be a rule in which multiple pieces of copyright-related information are spliced together in sequence. For example, obtaining the copyright related information of the picture to be processed includes the following content: picture ID "1234", picture channel number "mayi", picture author ID "7823902", picture upload time "201901011256", random characters "6532802". Then, according to the above-mentioned preset rules, the multiple pieces of copyright-related information are sequentially spliced together to obtain the first watermark element "1234mayi78239022019010112566532802". The first watermark element is hashed and encrypted using a hash encryption algorithm to obtain the first hash value "0257a13bf03b40f54a9fe398c79a664bb21cfa2" corresponding to the first watermark element.

In the above example, after the first hash value "0257a13bf03b40f54a9fe398c79a664bb21cfa2" is combined with the second watermark element of the randomly acquired picture format, the watermark picture obtained is shown in FIG. 2. It can be seen from FIG. 2 that the watermark picture contains the first hash value corresponding to the first watermark element, instead of directly displaying the copyright-related information of the picture, so the copyright-related information of the picture can be protected.

In the foregoing embodiment, in addition to the first watermark element, the picture-related content may also include a second watermark element, a watermark picture, a target picture, and so on. If the picture-related content includes multiple, the verification information of the multiple picture-related contents is correlated and uploaded to the blockchain, so that the picture watermark can be subsequently verified to protect the copyright information of the picture.

In one embodiment, when the watermark image corresponding to the first hash value is used to perform watermark encryption processing on the image to be processed to obtain the target image, the watermark image may be added to the image to be processed in a blind watermarking manner. The specific method is as follows:

First, perform a two-dimensional Fourier transform on the picture to be processed to obtain a frequency domain map corresponding to the picture to be processed. The Fourier transform can be performed on each row of the image matrix data corresponding to the picture to be processed first, and then the Fourier transform is performed on each column to complete the two-dimensional Fourier transform.

Second, determine a key, and generate out-of-order rules based on the key. The key corresponding to the picture to be processed can be obtained randomly, different keys can generate different out-of-order rules, and the process is reversible.

Thirdly, the watermark picture is shuffled the pixel order according to the disorder rule generated in the previous step, and the two-dimensional Fourier transform is performed. In this step, by disrupting the pixels of the watermark picture, the watermark picture can be made more concealed, thereby improving the security of the watermark picture.

Then, the watermark picture obtained in the previous step is superimposed on the frequency domain map of the picture to be processed to obtain a spectrogram containing the watermark.

Finally, the two-dimensional inverse Fourier transform is performed on the spectrogram containing the watermark to obtain the target picture containing the blind watermark.

Fig. 3 is a schematic flowchart of a block chain-based image watermark processing method according to an embodiment of the present specification. As shown in Fig. 3, the method includes steps S302 to S308.

S302: Obtain a target picture that has been encrypted by the watermark, and the target picture is embedded with a first watermark picture corresponding to a first hash value.

Wherein, the first hash value is obtained by hashing and encrypting the first watermark element through a hash encryption algorithm, and the first watermark element contains copyright related information of the target picture. The first watermark element is obtained after processing copyright-related information according to preset rules.

Copyright-related information can include the image identification (such as the image ID number), the source of the image (such as the channel information for obtaining the image to be processed), the upload time of the image, and the user information of the user related to the image (such as the ID number and name of the image processor or the image author) , Nickname, etc.), designated characters and other information. The designated character may be a random character determined for the picture to be processed.

S304: Extract a first watermark picture from the target picture, and determine a first hash value based on the first watermark picture.

S306: Obtain verification information of the image-related content corresponding to the target image stored in the blockchain.

Wherein, the picture-related content includes a first composite element used when performing watermark encryption processing, and the verification information includes a second hash value corresponding to the first composite element.

S308: Match the first hash value with the verification information to obtain a matching result.

In this step, when matching the first hash value with the verification information, the first hash value can be matched with the second hash value corresponding to the first composite element. In the case that the watermark picture on the target picture has not been tampered with, the first watermark element is the same as the first composite element, and the first hash value is the same as the second hash value.

In this embodiment, for the target picture after the watermark encryption process, the first watermark picture can be extracted from the target picture, and based on the first watermark picture, the corresponding corresponding to the first watermark element (including the copyright related information of the target picture) can be determined The first hash value, and then the first hash value is matched with the verification information of the image-related content stored in the blockchain to obtain a matching result. The target picture after the watermark encryption process can verify the watermark on the picture based on the data stored in the blockchain, thereby maintaining the copyright information of the picture.

When S304 is performed, take the target picture as an example that has undergone blind watermark encryption processing. Since the blind watermark encryption process superimposes the first watermark picture on the frequency domain map of the original picture, when extracting the first watermark picture on the target picture, only the original picture and the target picture containing the first watermark picture need to be Fouriered separately Leaf transformation, and then subtraction can extract the encrypted watermark picture (that is, the watermark picture with disturbed pixels). After extracting the encrypted watermark picture, it is necessary to determine the key used in the blind watermark encryption processing of the original picture (the key is used to generate the disorder rule), and then the pixel disorder of the first watermark picture is deduced by the key. Order rule, and then restore the picture pixels of the first watermark picture according to the pixel disorder rule to obtain the first watermark picture.

In an embodiment, the first watermark picture is a picture obtained by synthesizing a first hash value and a second watermark element in a specified format, and the specified format includes a picture format.

In this embodiment, the first hash value can be determined by separating the second watermark element and the first hash value in the first watermark picture. Since picture synthesis is reversible, for the first watermark picture obtained by picture synthesis, an algorithm that is inverse to picture synthesis can be used to separate the second watermark element and the first hash value. The specific image synthesis algorithm and its corresponding separation algorithm belong to the prior art, and will not be repeated here.

Based on the above embodiment, in addition to the first composite element, the picture-related content may also include the target picture, the second watermark picture used when performing watermark encryption processing on the target picture, the second composite element used to synthesize the second watermark picture, etc. .

If the first watermark picture is a picture obtained by synthesizing the first hash value and the second watermark element conforming to the specified format, when verifying the target picture, the second hash value corresponding to the second watermark element can be compared with The verification information of the second synthetic element stored in the blockchain is matched. In the case that the watermark picture on the target picture has not been tampered with, the second watermark element is the same as the second composite element, and the second hash value is the same as the verification information (such as the hash value) of the second composite element.

In addition, the third hash value corresponding to the first watermark picture can also be matched with the verification information of the second watermark picture. In the case that the watermark picture on the target picture has not been tampered with, the first watermark picture is the same as the second watermark picture, and the third hash value is the same as the verification information (such as the hash value) of the second watermark picture.

The foregoing describes specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than in the embodiments and still achieve desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown in order to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

The above is the blockchain-based image watermark processing method provided by one or more embodiments of this specification. Based on the same idea, one or more embodiments of this specification also provide a blockchain-based image watermark processing device.

Fig. 4 is a schematic flowchart of a block chain-based image watermark processing device according to an embodiment of the present specification. As shown in Fig. 4, the block chain-based picture watermark processing device 400 includes: a first acquisition module 410 , Obtain the first watermark element corresponding to the picture to be processed; the first watermark element contains the copyright related information of the picture to be processed; the first encryption module 420 uses a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain the first The first hash value corresponding to the watermark element; the second encryption module 430 uses the watermark image corresponding to the first hash value to perform watermark encryption processing on the image to be processed to obtain the target image; the upload module 440 determines the image-related content of the target image The verification information is to upload the verification information to the blockchain; the image-related content includes the first watermark element; the verification information includes the first hash value.

In one embodiment, the second encryption module 430 includes: a processing unit that performs image processing on the first hash value to obtain a watermark image corresponding to the picture to be processed; and an adding unit that adds the watermark picture to the picture to be processed.

In one embodiment, the processing unit obtains a second watermark element that conforms to a specified format; the specified format includes a picture format; performs picture synthesis on the first hash value and the second watermark element to obtain a watermark picture corresponding to the first hash value .

In one embodiment, the copyright-related information includes at least one of the image identification, the source of the image, the time when the image was uploaded, the user information of the user related to the image, and the designated character.

The first obtaining module 410 includes: an obtaining unit, which obtains copyright related information of the picture to be processed; and a generating unit, which processes the copyright related information according to preset rules to generate a first watermark element corresponding to the picture to be processed.

In an embodiment, the picture-related content further includes at least one of a second watermark element, a watermark picture, and a target picture.

FIG. 5 is a schematic flowchart of another image watermark processing device based on blockchain according to an embodiment of the present specification. As shown in FIG. 5, the image watermark processing device 500 based on blockchain includes: a second acquisition module 510. Obtain the target picture after the watermark encryption processing; the target picture is embedded with the first watermark picture corresponding to the first hash value; the first hash value is to perform hash encryption processing on the first watermark element through a hash encryption algorithm Obtain; the first watermark element contains the copyright related information of the target picture; the extraction module 520 extracts the first watermark picture from the target picture, and determines the first hash value based on the first watermark picture; the third acquisition module 530, acquires the block The verification information of the picture-related content corresponding to the target picture stored in the chain; the picture-related content includes the first composite element used when performing watermark encryption processing; the verification information includes the second hash value corresponding to the first composite element; the first matching module 540. Match the first hash value with the verification information to obtain a matching result.

In one embodiment, the first watermark picture is a picture obtained by synthesizing a first hash value and a second watermark element in a specified format; the specified format includes a picture format; the extraction module 520 separates the first watermark picture The second watermark element and the first hash value.

In an embodiment, the picture-related content further includes at least one of a target picture, a second watermark picture used when performing watermark encryption processing, and a second composition element used to synthesize the second watermark picture.

The device 500 also includes at least one of the following: a second matching module, which matches the second hash value corresponding to the second watermark element with the verification information of the second composite element; and a third matching module, which matches the first watermark image corresponding to the first watermark image. The three hash values are matched with the verification information of the second watermark picture.

In one embodiment, the copyright-related information includes at least one of the image identification, the source of the image, the time of uploading the image, the user information of the user related to the image, and the specified characters; the first watermark element is to perform the copyright-related information according to preset rules. Obtained after processing.

Those skilled in the art should understand that the above block chain-based picture watermark processing device can be used to implement the block chain-based picture watermark processing method described above, and the detailed description should be similar to the previous method part description. To avoid cumbersomeness, I won’t repeat it here.

Based on the same idea, one or more embodiments of this specification also provide a block chain-based image watermark processing device, as shown in FIG. 6. Blockchain-based image watermark processing equipment may have relatively large differences due to different configurations or performances, and may include one or more processors 601 and memory 602. The memory 602 may store one or more storage applications or data. Among them, the memory 602 may be short-term storage or persistent storage. The application program stored in the memory 602 may include one or more modules (not shown in the figure), and each module may include a series of computer-executable instructions for the image watermark processing device based on the blockchain. Furthermore, the processor 601 may be configured to communicate with the memory 602, and execute a series of computer-executable instructions in the memory 602 on a block chain-based image watermark processing device. The block chain-based image watermark processing device may also include one or more power supplies 603, one or more wired or wireless network interfaces 604, one or more input and output interfaces 605, and one or more keyboards 606.

Specifically, in this embodiment, the block chain-based image watermark processing device includes a memory and one or more programs. One or more programs are stored in the memory, and one or more programs may include one or more programs. The above modules, and each module may include a series of computer-executable instructions in a block chain-based image watermark processing device, and is configured to be executed by one or more processors including one or more programs for performing The following computer-executable instructions: obtain the first watermark element corresponding to the picture to be processed; the first watermark element contains the copyright related information of the picture to be processed; hash and encrypt the first watermark element using a hash encryption algorithm Processing to obtain the first hash value corresponding to the first watermark element; use the watermark picture corresponding to the first hash value to perform watermark encryption processing on the picture to be processed to obtain a target picture; determine the value of the target picture For the verification information of the picture-related content, upload the verification information to the blockchain; the picture-related content includes the first watermark element; the verification information includes the first hash value.

Optionally, when the computer-executable instructions are executed, the processor may also cause the processor to: perform graphical processing on the first hash value to obtain the watermark picture corresponding to the picture to be processed; and convert the watermark picture Add to the picture to be processed.

Optionally, when the computer-executable instructions are executed, the processor may also cause the processor to: obtain a second watermark element conforming to a specified format; the specified format includes a picture format; and the first hash value and the The second watermark element performs picture synthesis to obtain the watermark picture corresponding to the first hash value.

Optionally, the copyright-related information includes at least one of the image identification, the source of the image, the time when the image was uploaded, the user information of the user related to the image, and the specified characters; when the computer-executable instructions are executed, the Processor: Obtain the copyright-related information of the picture to be processed; process the copyright-related information according to preset rules to generate the first watermark element corresponding to the picture to be processed.

Optionally, the picture-related content further includes at least one of the second watermark element, the watermark picture, and the target picture.

Based on the same idea, one or more embodiments of this specification also provide a block chain-based image watermark processing device, as shown in FIG. 7. Blockchain-based image watermark processing equipment may have relatively large differences due to different configurations or performances, and may include one or more processors 701 and a memory 702. The memory 702 may store one or more storage applications or data. Among them, the memory 702 may be short-term storage or persistent storage. The application program stored in the memory 702 may include one or more modules (not shown in the figure), and each module may include a series of computer-executable instructions for the image watermark processing device based on the blockchain. Furthermore, the processor 701 may be configured to communicate with the memory 702, and execute a series of computer-executable instructions in the memory 702 on a block chain-based image watermark processing device. The block chain-based image watermark processing device may also include one or more power supplies 703, one or more wired or wireless network interfaces 704, one or more input and output interfaces 705, and one or more keyboards 706.

Specifically, in this embodiment, the block chain-based image watermark processing device includes a memory and one or more programs. One or more programs are stored in the memory, and one or more programs may include one or more programs. The above modules, and each module may include a series of computer-executable instructions in a block chain-based image watermark processing device, and is configured to be executed by one or more processors including one or more programs for performing The following computer-executable instructions: Obtain the target picture after the watermark encryption process; The target picture is embedded with the first watermark picture corresponding to the first hash value; A watermark element is hashed and encrypted; the first watermark element contains the copyright-related information of the target picture; the first watermark picture is extracted from the target picture, and the first watermark picture is determined based on the first watermark picture The first hash value; the verification information of the picture-related content corresponding to the target picture stored in the blockchain is obtained; the picture-related content includes the first composite element used when the watermark encryption processing is performed; the verification The information includes a second hash value corresponding to the first composite element; the first hash value is matched with the verification information to obtain a matching result.

Optionally, the first watermark picture is a picture obtained by synthesizing the first hash value and a second watermark element in a specified format; the specified format includes a picture format; computer executable instructions are being executed At the time, the processor may also be caused to separate the second watermark element and the first hash value in the first watermark picture.

Optionally, the picture-related content further includes at least one of the target picture, a second watermark picture used when performing the watermark encryption processing, and a second composition element used to synthesize the second watermark picture; When the computer-executable instructions are executed, the processor may further: match the second hash value corresponding to the second watermark element with the verification information of the second composite element; The third hash value corresponding to the picture is matched with the verification information of the second watermark picture.

Optionally, the copyright-related information includes at least one of picture identification, picture source, picture upload time, user information of the user related to the picture, and designated characters; The copyright-related information is obtained after processing.

One or more embodiments of this specification also propose a computer-readable storage medium that stores one or more programs, and the one or more programs include instructions. When the instructions include multiple application programs When executed by the electronic device, the electronic device can execute the above-mentioned blockchain-based picture watermark processing method, and is specifically used to execute: obtain the first watermark element corresponding to the picture to be processed; the first watermark element contains the to-be-processed picture Process the copyright-related information of the picture; use a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain the first hash value corresponding to the first watermark element; use the first hash value corresponding to the The watermark picture performs watermark encryption processing on the picture to be processed to obtain the target picture; determines the verification information of the picture-related content of the target picture, and uploads the verification information to the blockchain; the picture-related content includes the The first watermark element; the verification information includes the first hash value.

One or more embodiments of this specification also propose a computer-readable storage medium that stores one or more programs, and the one or more programs include instructions. When the instructions include multiple application programs When the electronic device is executed, the electronic device can execute the above-mentioned block chain-based image watermark processing method, and is specifically used to execute: obtain a target picture after watermark encryption processing; the target picture is embedded with a first hash Value corresponding to the first watermark picture; the first hash value is obtained by hashing and encrypting the first watermark element through a hash encryption algorithm; the first watermark element contains the copyright-related information of the target picture; Extracting the first watermark picture from the target picture, and determining the first hash value based on the first watermark picture; obtaining verification information of the picture-related content corresponding to the target picture stored in the blockchain; The picture-related content includes a first composite element used when performing the watermark encryption process; the verification information includes a second hash value corresponding to the first composite element; and the first hash value is combined with the The verification information is matched, and the matching result is obtained.

The systems, devices, modules, or units illustrated in the above embodiments may be specifically implemented by computer chips or entities, or implemented by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cell phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or Any combination of these devices.

For the convenience of description, when describing the above device, the functions are divided into various units and described separately. Of course, when implementing one or more embodiments of this specification, the functions of each unit may be implemented in the same one or more software and/or hardware.

Those skilled in the art should understand that one or more embodiments of this specification can be provided as a method, a system, or a computer program product. Therefore, one or more embodiments of this specification may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, one or more embodiments of this specification may adopt computer programs implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The form of the product.

One or more embodiments of this specification are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

In a typical configuration, the computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include non-permanent memory in computer readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM). Memory is an example of computer readable media.

Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

It should also be noted that the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or equipment including a series of elements not only includes those elements, but also includes Other elements that are not explicitly listed, or also include elements inherent to such processes, methods, commodities, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, commodity, or equipment that includes the element.

One or more embodiments of this specification may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. This application can also be practiced in distributed computing environments. In these distributed computing environments, tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules can be located in local and remote computer storage media including storage devices.

The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, as for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The above description is only one or more embodiments of this specification, and is not intended to limit this specification. For those skilled in the art, one or more embodiments of this specification may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification should be included in the scope of the claims of one or more embodiments of this specification.

Claims

A block chain-based image watermark processing method, including:

Acquiring a first watermark element corresponding to the picture to be processed; the first watermark element contains copyright related information of the picture to be processed;

Performing hash encryption processing on the first watermark element using a hash encryption algorithm to obtain the first hash value corresponding to the first watermark element;

Performing watermark encryption processing on the to-be-processed picture by using the watermark picture corresponding to the first hash value to obtain a target picture;

Determine the verification information of the picture-related content of the target picture, and upload the verification information to the blockchain; the picture-related content includes the first watermark element; the verification information includes the first hash value .
The method according to claim 1, using the watermark picture corresponding to the first hash value to perform watermark encryption processing on the picture to be processed, comprising:

Performing image processing on the first hash value to obtain a watermark image corresponding to the image to be processed;

Adding the watermark picture to the picture to be processed.
According to the method of claim 2, performing image processing on the watermark image corresponding to the first hash value to obtain the watermark image corresponding to the image to be processed includes:

Obtain a second watermark element conforming to a specified format; the specified format includes a picture format; perform picture synthesis on the first hash value and the second watermark element to obtain a watermark picture corresponding to the first hash value.
The method according to claim 1, wherein the copyright-related information includes at least one of a picture identifier, a picture source, a picture upload time, user information of a picture-related user, and designated characters;

The obtaining the first watermark element corresponding to the picture to be processed includes:

Obtaining the copyright-related information of the picture to be processed;

The copyright-related information is processed according to preset rules to generate the first watermark element corresponding to the picture to be processed.
The method according to claim 3, wherein the picture-related content further includes at least one of the second watermark element, the watermark picture, and the target picture.
A block chain-based image watermark processing method, including:

Obtain the target picture after the watermark encryption process; the target picture is embedded with the first watermark picture corresponding to the first hash value; the first hash value is to hash the first watermark element through a hash encryption algorithm Obtained through encryption processing; the first watermark element contains the copyright related information of the target picture;

Extracting the first watermark picture from the target picture, and determining the first hash value based on the first watermark picture;

Obtain verification information of the picture-related content corresponding to the target picture stored in the blockchain; the picture-related content includes the first synthesis element used when the watermark encryption process is performed; the verification information includes the first synthesis The second hash value corresponding to the element;

The first hash value is matched with the verification information to obtain a matching result.
The method according to claim 6, wherein the first watermark picture is a picture obtained by synthesizing the first hash value and a second watermark element conforming to a specified format; the specified format includes a picture format;

The determining the first hash value based on the first watermark picture includes:

Separating the second watermark element and the first hash value in the first watermark picture.
The method according to claim 7, wherein the picture-related content further includes the target picture, a second watermark picture used when performing the watermark encryption process, and a second composition element used to synthesize the second watermark picture At least one of

The method also includes at least one of the following:

Matching the second hash value corresponding to the second watermark element with the verification information of the second composite element;

Matching the third hash value corresponding to the first watermark picture with the verification information of the second watermark picture.
The method according to claim 6, wherein the copyright-related information includes at least one of picture identification, picture source, picture upload time, user information of the user related to the picture, and designated characters; Set rules to be obtained after processing the copyright-related information.
A picture watermark processing device based on blockchain, including:

The first obtaining module obtains the first watermark element corresponding to the picture to be processed; the first watermark element contains copyright related information of the picture to be processed;

A first encryption module, which uses a hash encryption algorithm to perform hash encryption processing on the first watermark element to obtain a first hash value corresponding to the first watermark element;

The second encryption module uses the watermark image corresponding to the first hash value to perform watermark encryption processing on the to-be-processed image to obtain a target image;

The upload module determines the verification information of the picture-related content of the target picture, and uploads the verification information to the blockchain; the picture-related content includes the first watermark element; the verification information includes the first Hash value.
The device according to claim 10, the second encryption module comprises:

A processing unit to perform picture processing on the first hash value to obtain a watermark picture corresponding to the picture to be processed;

The adding unit adds the watermark picture to the picture to be processed.
11. The device according to claim 11, wherein the processing unit obtains a second watermark element conforming to a specified format; the specified format includes a picture format; and performs picture synthesis on the first hash value and the second watermark element To obtain the watermark image corresponding to the first hash value.
A picture watermark processing device based on blockchain, including:

The second obtaining module obtains the target picture after the watermark encryption processing; the first watermark picture corresponding to the first hash value is embedded on the target picture; The watermark element is obtained through hash encryption processing; the first watermark element contains the copyright related information of the target picture;

An extraction module, which extracts the first watermark picture from the target picture, and determines the first hash value based on the first watermark picture;

The third obtaining module obtains the verification information of the picture-related content corresponding to the target picture stored in the blockchain; the picture-related content includes the first composite element used when the watermark encryption process is performed; the verification information includes The second hash value corresponding to the first composite element;

The first matching module matches the first hash value with the verification information to obtain a matching result.
The device according to claim 13, wherein the first watermark picture is a picture obtained by synthesizing the first hash value and a second watermark element conforming to a specified format; the specified format includes a picture format;

The extraction module separates the second watermark element and the first hash value in the first watermark picture.
The device according to claim 14, wherein the picture-related content further includes the target picture, a second watermark picture used when performing the watermark encryption process, and a second composition element used to synthesize the second watermark picture At least one of

The device also includes at least one of the following:

A second matching module, which matches the second hash value corresponding to the second watermark element with the verification information of the second composite element;

The third matching module matches the third hash value corresponding to the first watermark picture with the verification information of the second watermark picture.
A picture watermark processing device based on blockchain, including:

Processor; and

A memory arranged to store computer-executable instructions which, when executed, cause the processor to:

Acquiring a first watermark element corresponding to the picture to be processed; the first watermark element contains copyright related information of the picture to be processed;

Performing hash encryption processing on the first watermark element using a hash encryption algorithm to obtain the first hash value corresponding to the first watermark element;

Performing watermark encryption processing on the to-be-processed picture by using the watermark picture corresponding to the first hash value to obtain a target picture;

Determine the verification information of the picture-related content of the target picture, and upload the verification information to the blockchain; the picture-related content includes the first watermark element; the verification information includes the first hash value .
A picture watermark processing device based on blockchain, including:

Processor; and

A memory arranged to store computer-executable instructions which, when executed, cause the processor to:

Obtain the target picture after the watermark encryption process; the target picture is embedded with the first watermark picture corresponding to the first hash value; the first hash value is to hash the first watermark element through a hash encryption algorithm Obtained through encryption processing; the first watermark element contains the copyright related information of the target picture;

Extracting the first watermark picture from the target picture, and determining the first hash value based on the first watermark picture;

Obtain verification information of the picture-related content corresponding to the target picture stored in the blockchain; the picture-related content includes the first synthesis element used when the watermark encryption process is performed; the verification information includes the first synthesis The second hash value corresponding to the element;

The first hash value is matched with the verification information to obtain a matching result.
A storage medium for storing computer-executable instructions, which, when executed, implement the following processes:

Acquiring a first watermark element corresponding to the picture to be processed; the first watermark element contains copyright related information of the picture to be processed;

Performing hash encryption processing on the first watermark element using a hash encryption algorithm to obtain the first hash value corresponding to the first watermark element;

Performing watermark encryption processing on the to-be-processed picture by using the watermark picture corresponding to the first hash value to obtain a target picture;

Determine the verification information of the picture-related content of the target picture, and upload the verification information to the blockchain; the picture-related content includes the first watermark element; the verification information includes the first hash value .
A storage medium for storing computer-executable instructions, which, when executed, implement the following processes:

Obtain the target picture after the watermark encryption process; the target picture is embedded with the first watermark picture corresponding to the first hash value; the first hash value is to hash the first watermark element through a hash encryption algorithm Obtained through encryption processing; the first watermark element contains the copyright related information of the target picture;

Extracting the first watermark picture from the target picture, and determining the first hash value based on the first watermark picture;

Obtain verification information of the picture-related content corresponding to the target picture stored in the blockchain; the picture-related content includes the first synthesis element used when the watermark encryption process is performed; the verification information includes the first synthesis The second hash value corresponding to the element;

The first hash value is matched with the verification information to obtain a matching result.