CN111127580A

CN111127580A - User-defined signature generation method, computer tool, subscription method and system

Info

Publication number: CN111127580A
Application number: CN201911403081.9A
Authority: CN
Inventors: 黄祖清
Original assignee: Itruschina Co ltd
Current assignee: Itruschina Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-05-08
Anticipated expiration: 2039-12-30
Also published as: CN111127580B

Abstract

In the custom signature generation method, the computer tool, the signing method and the system provided by the invention, the custom signature generation method comprises the following steps: receiving a signature picture uploaded by a user; acquiring the sampling interval and the sampling initial value of pixels in the signature picture; reading the RGB value of each pixel in the signature picture; processing the RGB value of each pixel according to the sampling interval, the sampling initial value and a preset transparentization cutting threshold value, and reserving the main tone color in the signature picture to obtain a transparentization picture; and cutting out the transparentized pixels at the edge of the transparentized picture to obtain the signature. The method can realize the transparent processing of the signature pictures uploaded by the user and realize the personalized customization of the electronic signing signature.

Description

User-defined signature generation method, computer tool, subscription method and system

Technical Field

The invention belongs to the technical field of electronic signing, and particularly relates to a custom signature generation method, a computer tool, a signing method and a signing system.

Background

The signature used by the electronic signing system in the software industry is generally preset by a user through signature management service of the system and automatically generated by the system, and the user cannot use the signature uploaded by the user to sign. Even if some electronic signing systems provide a signature function which can be uploaded by users, the signature pictures need to be uploaded after manual PS transparentization processing is carried out on the signature pictures under the user line, and if the signatures which are not subjected to transparentization processing are directly used for electronic signature, the signature pictures can cover the original text of the electronic contract, and the complete display of the content of the electronic contract is seriously influenced.

The general enterprises have the signatures customized by the companies, and the online signing of the contracts is also the company signature. Most enterprise users, when using an electronic signature system, prefer to be able to sign up for an electronic contract by uploading a company's signature. However, at present, electronic signing systems in the industry are mostly user enterprise signatures generated by a system platform, rather than enterprise official signatures uploaded by a user, and the signing systems cannot meet the real requirements of the user in this respect.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a user-defined signature generation method, a computer tool, a signing method and a system, which can realize the transparent processing of signature pictures uploaded by a user and realize the personalized customization of electronic signing.

In a first aspect, a method for generating a custom signature includes the following steps:

receiving a signature picture uploaded by a user;

acquiring the sampling interval and the sampling initial value of pixels in the signature picture;

reading the RGB value of each pixel in the signature picture;

processing the RGB value of each pixel according to the sampling interval, the sampling initial value and a preset transparentization cutting threshold value, and reserving the main tone color in the signature picture to obtain a transparentization picture;

and cutting out the transparentized pixels at the edge of the transparentized picture to obtain the signature.

Preferably, the signature picture uploaded by the user includes a picture obtained by photographing or scanning the blank paper covered with the signature by the user.

Preferably, the processing the RGB value of each pixel according to the sampling interval, the sampling start value, and the preset transparentization cut threshold value, and retaining the dominant hue color in the signature picture to obtain the transparentization picture specifically includes:

when the R value, the G value and the B value in the RGB values of the pixel are all larger than the sampling initial value, discarding the pixel point;

presetting an R sum value, a G sum value and a B sum value, wherein the R sum value, the G sum value and the B sum value are equal;

when the R value in the RGB values of the pixels is larger than max (G, B) + the sampling interval, adding 1 to the R sum value;

when the G value in the RGB values of the pixels is larger than max (R, B) + the sampling interval, adding 1 to the total G value;

when the B value in the RGB values of the pixels is larger than max (R, G) + the sampling interval, adding 1 to the B sum value;

wherein max is the operation of solving the maximum value;

respectively calculating the sum of the R sum value, the G sum value and the B sum value in all the pixels;

and defining the color corresponding to the maximum value in the sum of the R sum value, the G sum value and the B sum value as a main tone color to obtain the transparentized picture.

Preferably, after the obtaining of the transparentized picture, the method further includes:

carrying out gray level processing on the dominant hue color of the pixel in the transparentized picture;

and replacing the main tone color of the pixel in the transparentized picture with the signature color set by the user.

Preferably, the cutting out the transparentized pixels at the edge in the transparentized picture to obtain the signature specifically includes:

reading the pixels at the top, bottom, left and right in the replaced transparentized picture, determining the coordinates of the four pixels in the transparentized picture, and storing all pixel values in the four coordinates to obtain the signature.

In a second aspect, a computer tool includes the custom signature generation method of the first aspect.

In a third aspect, an electronic subscription method includes the following steps:

when a signing interface receives an electronic contract signing request initiated by a user, inputting an electronic contract and verifying whether parameters of the signing interface are correct or not; the interface parameters include: the signer account, the certificate number and the contract number;

if the interface parameters are incorrect, ending the electronic contract signing request;

if the interface parameters are correct, executing the custom signature generation method of any one of claims 1-5 to obtain a signature;

adopting the signature to sign the electronic contract;

and storing the signed electronic contract.

Preferably, the electronic contract signing request further comprises a signer and a signature picture.

Preferably, if the interface parameter is correct, the executing the custom signature generation method, and the obtaining a signature specifically includes:

if the interface parameters are correct, judging whether the signer has the certificate; the certificate comprises a CA electronic certificate of the user;

if not, receiving a certificate application request initiated by a signer, applying for a certificate, and executing the custom signature generation method to obtain a signature;

and if so, executing the self-defined signature generation method to obtain the signature.

In a fourth aspect, a subscription system includes a processor, an input device, an output device, and a memory, the processor, the input device, the output device, and the memory being interconnected, wherein the memory is configured to store a computer program, the computer program including program instructions, the processor being configured to invoke the program instructions to perform the following method:

adopting the signature to sign the electronic contract;

and storing the signed electronic contract.

According to the technical scheme, the user-defined signature generation method, the computer tool, the signing method and the system can realize the transparent processing of the signature pictures uploaded by the user and realize the personalized customization of the electronic signing signature.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a flowchart of a custom signature generation method according to an embodiment of the present invention.

Fig. 2 is a signature picture uploaded by a user according to an embodiment of the present invention.

Fig. 3 is a signature obtained after the transparentization processing according to the first embodiment of the present invention.

Fig. 4 is a flowchart of an electronic subscription method provided by a third embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

The first embodiment is as follows:

a method for generating a custom signature, see FIG. 1, includes the following steps:

s1: receiving a signature picture uploaded by a user; preferably, referring to fig. 2, the signature picture uploaded by the user includes a picture or a scan of the blank paper covered with the signature by the user.

Specifically, when the method is used, an enterprise user covers a blank paper (A4 paper) with a signature, and then converts the covered signature into a picture file by means of photographing or scanning.

S2: acquiring the sampling interval and the sampling initial value of pixels in the signature picture;

s3: reading the RGB value of each pixel in the signature picture;

s4: processing the RGB value of each pixel according to the sampling interval, the sampling initial value and a preset transparentization cutting threshold value, and reserving the main tone color in the signature picture to obtain a transparentization picture, wherein the method specifically comprises the following steps:

wherein max is the operation of solving the maximum value;

Specifically, when the method performs background transparency processing on a signature picture, the related parameters include a sampling interval, a sampling start value, a transparency cutting threshold value and the like. The method comprises the steps of firstly obtaining a sampling interval, a sampling initial value and a transparentization cutting threshold value in a signature picture, then reading an RGB value of each pixel for comparison analysis, wherein the analysis method comprises the following two steps:

first, RGB color-equalizing processing: when the R value, the G value and the B value in the RGB values of the pixel are all larger than the sampling initial value, namely the pixel is in light color, the pixel is discarded at the moment, and the transparentization processing is directly carried out.

Second, RGB non-uniform color processing:

first, the R sum value, the G sum value, and the B sum value are preset, and the R sum value, the G sum value, and the B sum value are equal, for example, the R sum value, the G sum value, and the B sum value are all set to 0.

When the R value in the RGB values of the pixels is larger than max (G, B) + the sampling interval, adding 1 to the R value;

when the G value in the RGB values of the pixels is larger than max (R, B) + the sampling interval, adding 1 to the G value;

when the B value in the RGB values of the pixels is larger than max (R, G) + the sampling interval, adding 1 to the B value;

and defining the color corresponding to the maximum value in the sum of the R sum value, the G sum value and the B sum value as a main tone color to obtain the transparentized picture. The method defines the color corresponding to the maximum color value in each pixel as the dominant color of the pixel through circulation, and then confirms the maximum value of the sum value of the dominant colors of all the pixels as the dominant hue color of the signature picture.

S5: and cutting out the transparentized pixels at the edge of the transparentized picture to obtain the signature. The method specifically comprises the following steps:

reading the pixels at the top, bottom, left and right in the replaced transparentized picture, determining the coordinates of the four pixels in the transparentized picture, and storing all pixel values in the four coordinates to obtain the signature. Fig. 3 shows a signature obtained by transparentizing.

Specifically, the method finally cuts out the transparent pixels at the edges of the picture. During processing, the color values of the upper, lower, left and right sides of the picture are read, the coordinates of the four edge positions of the picture are determined, the RGB values in the coordinates are stored, the processed picture is generated, the signature is obtained, and the stored signature is output.

The method makes the background color of the signature picture transparent. Because the signature picture photographed by the user has factors such as light and the like, and the uploaded signature picture has not a good effect, the method needs to process the signature pictures, namely, the pixels are analyzed one by one, including the sampling of the pixels, the definition of the pigment threshold value and the like.

After the signature picture is received, the method carries out background transparency processing on the signature picture and stores the signature picture as the signature of an enterprise, so that electronic signature can be carried out on the electronic contract. The method analyzes and processes each pixel of the picture, realizes the transparent processing of the signature picture uploaded by the user, and realizes the personalized customization of the electronic signature.

Specifically, the method may also replace the color of the signature with a color set by the user, for example, the color of the signature may be modified to blue. In the replacing process, the gray processing is firstly carried out on the main tone color, and then the main tone color of the pixel in the transparentized picture is replaced according to the signature color (such as blue) set by a user, so that the personalized customization function of the signature color is realized.

The method has wide application scenes, and is widely applied to scenes that some signing users have special requirements on signatures, such as triangular signatures or other irregular signatures. The traditional electronic signing system can only generate a plurality of fixed signatures such as circles, ellipses and the like, and can not generate irregular signatures of the type. At this time, the user can seal on the blank A4 paper offline, take a picture or scan a signature picture and upload the picture, so that the uploaded signature can be subjected to transparency processing, and then the electronic contract is electronically signed by using the processed signature.

Example two:

a computer tool comprises the user-defined signature generation method.

Specifically, the code of the method can be packaged into an SDK tool interface and provided for any system needing a function of transparently processing the signature. When the computer tool is used, the transparent processing interface can be directly called only by introducing the computer tool, so that the transparent processing of the signature is completed, the effects of one-time development and multi-system multi-time reuse are realized, the system development time and the labor input cost are saved, and the development efficiency of other systems is greatly improved.

For a brief description of the tools provided in the embodiments of the present invention, reference may be made to the corresponding contents in the foregoing method embodiments, where the embodiments are not mentioned in part.

Example three:

an electronic subscription method, see fig. 4, comprising the steps of:

s11: when a signing interface receives an electronic contract signing request initiated by a user, inputting an electronic contract and verifying whether parameters of the signing interface are correct or not; preferably, the electronic contract signing request further comprises a signer and a signature picture. The interface parameters include: the signer account, the certificate number and the contract number; and when the interface parameters pass the verification, signing the electronic contract later.

S12: if the interface parameters are incorrect, ending the electronic contract signing request;

s13: if the interface parameters are correct, executing the self-defined signature generation method to obtain a signature;

s14: adopting the signature to sign the electronic contract;

s15: and storing the signed electronic contract.

Specifically, when electronic contract signing is performed, a user initiates an electronic contract signing request and inputs an electronic contract, a signer and a signature picture. When the check of the signing interface fails, the contract signing fails, and the electronic contract signing request is finished. If the signing interface is successfully verified, a signature can be generated according to a signature picture provided by a user, and then the generated signature is adopted to sign an electronic contract.

if the interface parameters are correct, judging whether the signer has the certificate; the certificate comprises a CA electronic certificate of the user; the certificate is used to electronically sign the electronic contract.

Specifically, after the interface parameters are successfully verified, the method needs to judge whether the signer has the certificate, the electronic contract signing can be carried out only under the condition that the signer has the certificate, and if the signer does not have the certificate, the signer can apply for the certificate and then carry out the electronic contract signing.

For the sake of brief description, the method provided by the embodiment of the present invention may refer to the corresponding contents in the foregoing method embodiments.

Example four:

a sign-up system comprising a processor, an input device, an output device, and a memory, the processor, input device, output device, and memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform a method comprising:

if the interface parameters are correct, executing the self-defined signature generation method to obtain a signature;

adopting the signature to sign the electronic contract;

and storing the signed electronic contract.

For the sake of brief description, the system provided by the embodiment of the present invention may refer to the corresponding content in the foregoing method embodiments.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A custom signature generation method is characterized by comprising the following steps:

receiving a signature picture uploaded by a user;

reading the RGB value of each pixel in the signature picture;

2. The custom signature generation method of claim 1,

the signature picture uploaded by the user is obtained by photographing or scanning the blank paper covered with the signature by the user.

3. The method of claim 1, wherein the processing RGB values of each pixel according to the sampling interval, the sampling start value, and a preset transparentization cut threshold, and retaining dominant hue colors in the signed picture to obtain a transparentized picture specifically comprises:

wherein max is the operation of solving the maximum value;

4. The method of claim 3, further comprising, after the obtaining the transparentized picture:

5. The method of claim 4, wherein the removing the transparentized pixels at the edge of the transparentized picture to obtain the signature specifically comprises:

6. A computer tool comprising the custom signature generation method of any of claims 1 to 5.

7. An electronic subscription method, comprising the steps of:

adopting the signature to sign the electronic contract;

and storing the signed electronic contract.

8. The electronic subscription method according to claim 7,

the electronic contract signing request also comprises a signer and a signature picture.

9. The electronic signing method of claim 8, wherein if the interface parameters are correct, executing the custom signature generation method, and obtaining the signature specifically comprises:

10. A contracting system comprising a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of:

adopting the signature to sign the electronic contract;

and storing the signed electronic contract.