CN117911228A

CN117911228A - Image generation method, device, nonvolatile storage medium and computer equipment

Info

Publication number: CN117911228A
Application number: CN202410058517.XA
Authority: CN
Inventors: 李贺
Original assignee: Tianyi Electronic Commerce Co Ltd
Current assignee: Tianyi Electronic Commerce Co Ltd
Priority date: 2024-01-15
Filing date: 2024-01-15
Publication date: 2024-04-19

Abstract

The invention discloses an image generation method, an image generation device, a nonvolatile storage medium and computer equipment. Wherein the method comprises the following steps: acquiring an initial image and a first watermark image, and setting a light source, the number of watermarks and a watermark arrangement mode of a target account; drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode; according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image; and generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image. The invention solves the technical problem that the watermark effect cannot be adjusted according to the user demand in the related art.

Description

Image generation method, device, nonvolatile storage medium and computer equipment

Technical Field

The present invention relates to the field of image processing, and in particular, to an image generating method, an image generating device, a nonvolatile storage medium, and a computer device.

Background

Conventional methods for producing picture watermarks generally require a designer to perform a pattern design in advance and then fuse the watermark into the target image. However, this approach does not allow for real-time batch free customization, and does not allow for flexibility under different user needs. Therefore, for large-scale or personalized customized application scenarios, the traditional watermarking method obviously has limitations that different requirements of users cannot be met, and the watermarking effect can be flexibly adjusted according to the requirements.

In view of the above problems, no effective solution has been proposed at present.

Disclosure of Invention

The embodiment of the invention provides an image generation method, an image generation device, a nonvolatile storage medium and computer equipment, which at least solve the technical problem that the watermark effect cannot be adjusted according to the user requirement in the related technology.

According to an aspect of an embodiment of the present invention, there is provided an image generation method including: acquiring an initial image and a first watermark image, and setting a light source, the number of watermarks and a watermark arrangement mode of a target account; drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode; according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image; and generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image.

Optionally, according to the number of watermarks and the watermark arrangement mode, drawing based on the first watermark image to obtain a second watermark image, including: drawing a fourth watermark image which accords with the number of watermarks and the watermark arrangement mode based on the first watermark image; and adjusting the size of the fourth watermark image according to the size of the initial image to obtain a second watermark image.

Optionally, adjusting color values of each of the plurality of first pixels in the second watermark image according to the light source to obtain a third watermark image, including: determining the gray value of each of a plurality of first pixel points; determining the height value of each of the plurality of first pixel points according to the gray value of each of the plurality of first pixel points, wherein the height value of each of the plurality of first pixel points represents the height of an object point represented by the corresponding pixel point relative to an imaging plane; determining normal vectors of the first pixel points according to the height values of the first pixel points, wherein the normal vectors of the first pixel points are vectors perpendicular to a plane where an object point represented by the corresponding pixel point is located; determining respective illumination effects of the plurality of first pixel points according to respective normal vectors of the light source and the plurality of first pixel points; and adjusting the color values of the first pixel points according to the illumination effect of the first pixel points to obtain a third watermark image.

Optionally, determining the normal vector of each of the plurality of first pixel points according to the height value of each of the plurality of first pixel points includes: establishing a three-dimensional coordinate system, wherein an xoy plane in the three-dimensional coordinate system is positioned on a plane where the second watermark image is positioned, and a z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is positioned; determining respective coordinates of a plurality of first pixel points based on a three-dimensional coordinate system, wherein the respective z-axis coordinates of the plurality of first pixel points are respective height values of the plurality of first pixel points; and determining the normal vector of each of the plurality of first pixel points according to the coordinates of each of the plurality of first pixel points.

Optionally, determining the illumination effect of each of the plurality of first pixel points according to the normal vector of each of the light source and the plurality of first pixel points includes: determining coordinates of the light source based on the three-dimensional coordinate system; determining respective ray vectors of the plurality of first pixel points according to the coordinates of the light source and the coordinates of the plurality of first pixel points; and determining the illumination effect of each of the plurality of first pixel points according to the light vector and the normal vector of each of the plurality of first pixel points.

Optionally, adjusting respective color values of the plurality of first pixel points according to respective illumination effects of the plurality of first pixel points to obtain a third watermark image, and further including: determining connecting lines corresponding to the plurality of first pixel points according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points; determining influence pixel points corresponding to the first pixel points respectively according to the connecting lines corresponding to the first pixel points, wherein the influence pixel points are pixel points located on the connecting lines corresponding to the first pixel points; determining a shielding effect of the corresponding first pixel point according to the height value affecting the pixel point; and adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect and the respective shielding effect of the plurality of first pixel points to obtain a third watermark image.

Optionally, the generating, based on the third watermark image and with the initial image as the background, the target image includes: determining the brightness value of each of the plurality of second pixel points; and adjusting the color value of the corresponding third pixel point according to the brightness value of each of the plurality of second pixel points to generate a target image.

According to another aspect of the embodiment of the present invention, there is also provided an image generating apparatus including: the acquisition module is used for acquiring the initial image, the first watermark image, and the light source, the watermark number and the watermark arrangement mode set by the target account; the drawing module is used for drawing a second watermark image based on the first watermark image according to the number of the watermarks and the watermark arrangement mode; the adjusting module is used for adjusting the color values of the first pixel points in the second watermark image according to the light source to obtain a third watermark image; and the generation module is used for generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image.

According to still another aspect of the embodiments of the present invention, there is also provided a nonvolatile storage medium including a stored program, wherein a device in which the nonvolatile storage medium is controlled to execute any one of the image generating methods described above when the program runs.

According to still another aspect of the embodiments of the present invention, there is further provided a computer device, including a processor for executing a program, where the program executes any one of the image generating methods described above.

In the embodiment of the invention, an image generation method is adopted, and the initial image, the first watermark image, the light source set by the target account, the watermark number and the watermark arrangement mode are obtained; drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode; according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image; based on the third watermark image, the initial image is used as a background to generate a target image, wherein the target image is an image printed with the third watermark image, so that the purpose of adjusting the watermark effect is achieved, the technical effect of better meeting the user requirement is achieved, and the technical problem that the watermark effect cannot be adjusted according to the user requirement in the related art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 shows a hardware block diagram of a computer terminal for implementing an image generation method;

fig. 2 is a flowchart of an image generating method according to an embodiment of the present invention;

FIG. 3 is a flowchart of an implementation of an image generation method provided in accordance with an alternative embodiment of the present invention;

FIG. 4 is an implementation effect diagram of an image generation method provided according to an alternative embodiment of the present invention;

fig. 5 is a block diagram of an image generating apparatus according to an embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

According to an embodiment of the present invention, there is provided a method embodiment of an image generation method, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases the steps shown or described may be performed in an order different from that herein.

The method according to the first embodiment of the present application may be implemented in a mobile terminal, a computer terminal or a similar computing device. Fig. 1 shows a block diagram of a hardware structure of a computer terminal for implementing an image generation method. As shown in fig. 1, the computer terminal 10 may include one or more (shown as 102a, 102b, … …,102 n) processors (which may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. In addition, the method may further include: a display, an input/output interface (I/O interface), a Universal Serial BUS (USB) port (which may be included as one of the ports of the BUS), a network interface, a power supply, and/or a camera. It will be appreciated by those of ordinary skill in the art that the configuration shown in fig. 1 is merely illustrative and is not intended to limit the configuration of the electronic device described above. For example, the computer terminal 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.

It should be noted that the one or more processors and/or other data processing circuits described above may be referred to herein generally as "data processing circuits. The data processing circuit may be embodied in whole or in part in software, hardware, firmware, or any other combination. Furthermore, the data processing circuitry may be a single stand-alone processing module or incorporated, in whole or in part, into any of the other elements in the computer terminal 10. As referred to in embodiments of the application, the data processing circuit acts as a processor control (e.g., selection of the path of the variable resistor termination connected to the interface).

The memory 104 may be used to store software programs and modules of application software, such as program instructions/data storage devices corresponding to the image generation method in the embodiments of the present invention, and the processor executes the software programs and modules stored in the memory 104, thereby executing various functional applications and data processing, that is, implementing the image generation method of the application program described above. Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor, which may be connected to the computer terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The display may be, for example, a touch screen type Liquid Crystal Display (LCD) that may enable a user to interact with a user interface of the computer terminal 10.

Fig. 2 is a flowchart of an image generating method according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:

Step S202, obtaining an initial image, a first watermark image, and a light source, the number of watermarks and a watermark arrangement mode set by a target account.

In this step, the initial image obtained is the image to be watermarked, and the first watermark image obtained is the image used as the watermark. Both the initial image and the first watermark image may be self-selected by the user. The user corresponding to the target account can set the light source, the number of watermarks and the watermark arrangement mode according to the required watermark effect. Different light sources, watermark numbers and watermark arrangement modes can show different watermark effects. Wherein the setting of the light source may include a position of the light source, an illumination intensity, etc. The number of watermarks is related to the watermark arrangement mode, for example, when the number of watermarks is 4, the watermark arrangement mode can be horizontal side by side, vertical side by side or four grids, and concretely, the watermark arrangement mode can be selected by a user according to the requirement, so that the requirement of the user can be better met.

And step S204, drawing to obtain a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode.

In the step, a second watermark image is drawn according to the number of watermarks and the watermark arrangement mode. For example, the number of watermarks is 4, the watermark arrangement mode is four-grid arrangement, and a second watermark image with four-grid as the first watermark image is drawn based on the first watermark image.

Step S206, according to the light source, the color values of the first pixel points in the second watermark image are adjusted to obtain a third watermark image.

In this step, the color values of the first pixels in the second watermark image are adjusted according to the light source set in the target account, so as to obtain a third watermark image. The light source irradiates the second watermark image, and different pixel points can generate different illumination effects, so that different influences on color values can be generated.

In step S208, a target image is generated based on the third watermark image with the initial image as a background, wherein the target image is an image printed with the third watermark image.

In this step, the initial image is used as a background, and the third watermark image is superimposed to be used as a watermark image, so that the target image can be obtained. For example, color values of pixels on the third watermark image may be selected to be directly superimposed on corresponding pixels in the original image; the brightness value of the pixel point on the third watermark image can be superimposed on the corresponding pixel point in the initial image, so that the display of the initial image is not influenced while the watermark is added.

Through the steps, the purpose of adjusting the watermark effect is achieved, so that the technical effect of better meeting the user demand is achieved, and the technical problem that the watermark effect cannot be adjusted according to the user demand in the related art is solved.

As an optional embodiment, according to the number of watermarks and the watermark arrangement mode, drawing based on the first watermark image to obtain a second watermark image, including: drawing a fourth watermark image which accords with the number of watermarks and the watermark arrangement mode based on the first watermark image; and adjusting the size of the fourth watermark image according to the size of the initial image to obtain a second watermark image.

Optionally, a fourth watermark image which accords with the watermark number and the watermark arrangement mode set by the user is drawn based on the first watermark image. And then the size of the fourth watermark image is adjusted to the size of the initial image according to the size of the initial image, so that the second watermark image is obtained. For example, the first watermark images are combined into a fourth watermark image according to the number and arrangement mode set by a user, and then the fourth watermark image is scaled and cut according to the size of the initial image, so as to obtain a second watermark image with the same size as the initial image.

As an optional embodiment, adjusting, according to the light source, respective color values of the plurality of first pixels in the second watermark image to obtain a third watermark image includes: determining the gray value of each of a plurality of first pixel points; determining the height value of each of the plurality of first pixel points according to the gray value of each of the plurality of first pixel points, wherein the height value of each of the plurality of first pixel points represents the height of an object point represented by the corresponding pixel point relative to an imaging plane; determining normal vectors of the first pixel points according to the height values of the first pixel points, wherein the normal vectors of the first pixel points are vectors perpendicular to a plane where an object point represented by the corresponding pixel point is located; determining respective illumination effects of the plurality of first pixel points according to respective normal vectors of the light source and the plurality of first pixel points; and adjusting the color values of the first pixel points according to the illumination effect of the first pixel points to obtain a third watermark image.

Alternatively, the gray value of the first pixel point may be determined first, and the respective height value of the first pixel point may be determined according to the gray value. And then determining the normal vector corresponding to the first pixel point according to the respective height value of the first pixel point. And determining respective illumination effects according to the normal vectors corresponding to the light source and the first pixel point. And adjusting the color value of the first pixel point according to the illumination effect to obtain a third watermark image. The light source is set by a user, comprises the position and illumination intensity of the light source, and adjusts the color value of the first pixel point of the watermark image according to the light source set by the user, so that the technical effect of meeting different requirements of the user is realized. The color vector of the first pixel point can be obtained first, and the gray value of the first pixel point is determined according to the color vector. And determining the height value of the first pixel point according to the gray value, wherein the darker the color of the first pixel point is, the smaller the corresponding height value is. And determining the illumination effect according to the normal vector of the light source and the first pixel point, and calculating the direction vector of the light ray through the coordinates of the light source and the coordinates of the first pixel point. And calculating dot products of the light rays according to the direction vector and the normal vector of the light rays to obtain the illumination effect.

As an alternative embodiment, determining the normal vector of each of the plurality of first pixel points according to the height value of each of the plurality of first pixel points includes: establishing a three-dimensional coordinate system, wherein an xoy plane in the three-dimensional coordinate system is positioned on a plane where the second watermark image is positioned, and a z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is positioned; determining respective coordinates of a plurality of first pixel points based on a three-dimensional coordinate system, wherein the respective z-axis coordinates of the plurality of first pixel points are respective height values of the plurality of first pixel points; and determining the normal vector of each of the plurality of first pixel points according to the coordinates of each of the plurality of first pixel points.

Alternatively, determining the normal vector of the first pixel point may first establish a three-dimensional coordinate system, where the xoy plane in the three-dimensional coordinate system is located in the plane where the second watermark image is located, and the z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is located. In the three-dimensional coordinate system, the respective coordinates of the plurality of first pixel points are respectively determined, wherein the coordinates of the z-axis are the respective height values of the first pixel points, that is, the three-dimensional coordinates of the first pixel points can represent the positions of the physical points represented by the pixel points in the three-dimensional scene displayed by the image to a certain extent. And then determining the normal vector of each of the plurality of pixel points according to the respective coordinates of the first pixel points. Specifically, the normal line corresponding to the pixel point may be determined according to the gradient vector of the height value corresponding to the first pixel point on the x-axis and the y-axis. Wherein the modulo length of the gradient vector represents the rate of change of the function at a point, and the gradient vector can be obtained by calculating the partial derivatives in each direction.

As an alternative embodiment, determining the illumination effect of each of the plurality of first pixel points according to the normal vector of each of the light source and the plurality of first pixel points includes: determining coordinates of the light source based on the three-dimensional coordinate system; determining respective ray vectors of the plurality of first pixel points according to the coordinates of the light source and the coordinates of the plurality of first pixel points; and determining the illumination effect of each of the plurality of first pixel points according to the light vector and the normal vector of each of the plurality of first pixel points.

Alternatively, determining the illumination effect of the first pixel point may first determine the coordinates of the light source based on a three-dimensional coordinate system. According to the coordinates of the light source and the coordinates of the plurality of first pixel points, the respective ray vectors of the plurality of first pixel points, namely the connection lines of the light source and the plurality of pixel points, can be determined. According to the respective ray vector and normal vector of the first pixel point, the respective illumination effect of the first pixel point can be determined. Specifically, the dot product of the ray vector and the normal vector can be calculated, and the respective illumination intensity of the first pixel point can be calculated. And determining the final illumination effect according to the illumination intensity of the light source.

As an optional embodiment, according to the illumination effect of each of the plurality of first pixel points, adjusting the color values of each of the plurality of first pixel points to obtain a third watermark image, and further including: determining connecting lines corresponding to the plurality of first pixel points according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points; determining influence pixel points corresponding to the first pixel points respectively according to the connecting lines corresponding to the first pixel points, wherein the influence pixel points are pixel points located on the connecting lines corresponding to the first pixel points; determining a shielding effect of the corresponding first pixel point according to the height value affecting the pixel point; and adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect and the respective shielding effect of the plurality of first pixel points to obtain a third watermark image.

Optionally, determining the connection lines corresponding to the plurality of first pixel points according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points. And then according to the connecting lines corresponding to the plurality of first pixel points, determining the influence pixel points corresponding to the plurality of first pixel points respectively. The influencing pixel point is a pixel point positioned on a connecting line corresponding to the first pixel point. And then determining the shielding effect of the first pixel point according to the height value of the influence pixel point, wherein the height value of the influence pixel point is larger than the height value of the corresponding first pixel point, so that the first pixel point can be considered to be positioned in the shadow. And adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect and the respective shielding effect of the plurality of first pixel points, so as to obtain a third watermark image. For example, a fixed step size may be defined for performing texture sampling multiple times in a loop. After entering the loop, starting from the texture coordinates of the current pixel, gradually sampling the texture according to the step length. By comparing the current depth with the next depth, it is determined whether or not it is in shadow. The loop is performed a maximum of 256 times to trade-off performance and accuracy. If the next depth is greater than the current depth, returning a shadow value of 0.5, which indicates that the pixel is in shadow; otherwise, a shadow value of 1.0 is returned, indicating that the pixel is not in shadow.

As an alternative embodiment, the generating, based on the third watermark image, the target image with the initial image as the background, where the plurality of second pixels in the third watermark image and the plurality of third pixels in the initial image are in one-to-one correspondence, includes: determining the brightness value of each of the plurality of second pixel points; and adjusting the color value of the corresponding third pixel point according to the brightness value of each of the plurality of second pixel points to generate a target image.

Alternatively, the brightness value of the second pixel point may be determined first, and then the color value of the corresponding third pixel point may be adjusted according to the brightness value of the second pixel point, so that the target image may be generated. According to the brightness value of the second pixel point, the watermark can not influence the display of the final initial image, and has the watermark effect. The user can also set the strength of the watermark, the lower the strength is, the smaller the influence of the watermark on the initial image is, and specifically, the strength of the watermark set by the user can be multiplied by the brightness value of the second pixel point to adjust the color value of the corresponding third pixel point.

Fig. 3 is a flowchart illustrating an implementation of an image generating method according to an alternative embodiment of the present invention, and as shown in fig. 3, a specific embodiment of the present invention is provided below:

s1, acquiring an image: an initial image and a first watermark image are acquired.

S2, acquiring initial parameters: the user sets the light source, the watermark intensity, the watermark number and the watermark arrangement mode.

S3, determining a second watermark image: and determining a second watermark image according to the number of watermarks and the watermark arrangement mode, wherein the size of the second watermark image is the same as that of the initial image.

S4, determining the illumination effect: the direction of the light is calculated. And then calculating the dot product of the light direction and the normal line to obtain the intensity of diffuse reflection illumination.

S5, determining a shielding effect: a fixed step size is used for performing texture sampling multiple times in a loop. After entering the loop, starting from the texture coordinates of the current pixel point, gradually sampling according to the step length. By comparing the current depth with the next depth, it is determined whether or not it is in shadow. The loop is performed a maximum of 256 times to trade-off performance and accuracy. If the next depth is greater than the current depth, returning a shadow value of 0.5, which indicates that the pixel is in shadow; otherwise, a shadow value of 1.0 is returned, indicating that the pixel is not in shadow.

S6, determining a third watermark image: and calculating the product of the diffuse reflection illumination intensity and the shadow value, and multiplying the product by the watermark intensity coefficient. And adjusting the color value of the pixel point in the second watermark image according to the obtained value to obtain a third watermark image. Wherein the watermark strength is user-set.

S7, generating a target image: and adjusting the color value of the corresponding pixel point in the initial image according to the brightness value of the pixel point in the third watermark image to obtain the target image. Fig. 4 is an implementation effect diagram of an image generating method according to an alternative embodiment of the present invention, where, as shown in fig. 4, an initial image is left, a first watermark image is in the middle, and a target image is right.

It should be noted that, for simplicity of description, the foregoing method embodiments are all described as a series of acts, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts described, as some steps may be performed in other orders or concurrently in accordance with the present invention. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present invention.

From the above description of the embodiments, it will be clear to a person skilled in the art that the image generation method according to the above embodiments may be implemented by means of software plus a necessary general hardware platform, but of course also by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.

According to an embodiment of the present invention, there is also provided an image generating apparatus for implementing the above-described image generating method, and fig. 5 is a block diagram of the structure of the image generating apparatus provided according to the embodiment of the present invention, as shown in fig. 5, the image generating apparatus includes: the image generating apparatus will be described below as the acquisition module 52, the drawing module 54, the adjustment module 56, and the generation module 58.

The obtaining module 52 is configured to obtain the initial image and the first watermark image, and the light source, the watermark number and the watermark arrangement set by the target account.

And the drawing module 54 is connected with the acquisition module 52 and is used for drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode.

The adjusting module 56 is connected to the drawing module 54, and is configured to adjust respective color values of the plurality of first pixels in the second watermark image according to the light source, so as to obtain a third watermark image.

The generating module 58 is connected to the adjusting module 56, and is configured to generate a target image based on the third watermark image and using the initial image as a background, where the target image is an image printed with the third watermark image.

Optionally, the drawing module is configured to draw a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode, and includes: the drawing unit is used for drawing a fourth watermark image which accords with the number and the arrangement mode of the watermarks based on the first watermark image; and the size adjusting unit is used for adjusting the size of the fourth watermark image according to the size of the initial image to obtain a second watermark image.

Optionally, the adjusting module is configured to adjust respective color values of the plurality of first pixel points in the second watermark image according to the light source, to obtain a third watermark image, including: the first determining unit is used for determining gray values of each of the plurality of first pixel points; the second determining unit is used for determining the height value of each of the plurality of first pixel points according to the gray value of each of the plurality of first pixel points, wherein the height value of each of the plurality of first pixel points represents the height of an object point represented by a corresponding pixel point relative to an imaging plane; the third determining unit is used for determining the normal vector of each of the plurality of first pixel points according to the height value of each of the plurality of first pixel points, wherein the normal vector of each of the plurality of first pixel points is a vector vertical to the plane of the object point represented by the corresponding pixel point; the fourth determining unit is used for determining the illumination effect of each of the plurality of first pixel points according to the normal vector of each of the light source and the plurality of first pixel points; the color adjusting unit is used for adjusting the color values of the first pixel points according to the illumination effects of the first pixel points to obtain a third watermark image.

Optionally, the third determining unit is configured to determine a normal vector of each of the plurality of first pixel points according to the height values of each of the plurality of first pixel points, and includes: the establishing subunit is used for establishing a three-dimensional coordinate system, wherein an xoy plane in the three-dimensional coordinate system is positioned on the plane where the second watermark image is positioned, and the z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is positioned; the first determining subunit is configured to determine coordinates of each of the plurality of first pixel points based on a three-dimensional coordinate system, where the z-axis coordinates of each of the plurality of first pixel points are height values of each of the plurality of first pixel points; the second determining subunit is configured to determine normal vectors of the first pixel points according to the coordinates of the first pixel points.

Optionally, the fourth determining unit is configured to determine, according to the normal vector of each of the light source and the plurality of first pixel points, an illumination effect of each of the plurality of first pixel points, including: the third determining subunit is used for determining coordinates of the light source based on the three-dimensional coordinate system; the fourth determining subunit is configured to determine respective light vectors of the plurality of first pixel points according to the coordinates of the light source and the coordinates of the plurality of first pixel points; the fifth determining subunit is configured to determine an illumination effect of each of the plurality of first pixel points according to the light vector and the normal vector of each of the plurality of first pixel points.

Optionally, the color adjustment unit is configured to adjust respective color values of the plurality of first pixel points according to respective illumination effects of the plurality of first pixel points, to obtain a third watermark image, and further includes: the sixth determining subunit is configured to determine, according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points, a connection line corresponding to the plurality of first pixel points; the seventh determining subunit is configured to determine, according to the connection lines corresponding to the plurality of first pixel points, an influence pixel point corresponding to each of the plurality of first pixel points, where the influence pixel point is a pixel point located on the connection line corresponding to the first pixel point; the eighth determination subunit is configured to determine a shielding effect of the corresponding first pixel according to the height value affecting the pixel; the adjusting subunit is configured to adjust respective color values of the plurality of first pixel points according to respective illumination effects and shielding effects of the plurality of first pixel points, so as to obtain a third watermark image.

Optionally, the generating module is configured to generate, based on the third watermark image and with the initial image as a background, a target image according to a one-to-one correspondence between the plurality of second pixels in the third watermark image and the plurality of third pixels in the initial image, and includes: the fifth determining unit is used for determining the brightness value of each of the plurality of second pixel points; the generating unit is used for adjusting the color value of the corresponding third pixel point according to the brightness value of each of the plurality of second pixel points to generate a target image.

It should be noted that, the above-mentioned obtaining module 52, the drawing module 54, the adjusting module 56 and the generating module 58 correspond to steps S202 to S208 in the embodiment, and the plurality of modules are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to the disclosure of the above-mentioned embodiments. It should be noted that the above-described module may be operated as a part of the apparatus in the computer terminal 10 provided in the embodiment.

Embodiments of the present invention may provide a computer device, optionally in this embodiment, the computer device may be located in at least one network device of a plurality of network devices of a computer network. The computer device includes a memory and a processor.

The memory may be used to store software programs and modules, such as program instructions/modules corresponding to the image generating method and apparatus in the embodiments of the present invention, and the processor executes the software programs and modules stored in the memory, thereby executing various functional applications and data processing, that is, implementing the image generating method described above. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include memory remotely located relative to the processor, which may be connected to the computer terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The processor may call the information and the application program stored in the memory through the transmission device to perform the following steps: acquiring an initial image and a first watermark image, and setting a light source, the number of watermarks and a watermark arrangement mode of a target account; drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode; according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image; and generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image.

Optionally, the above processor may further execute program code for: according to the number of watermarks and the watermark arrangement mode, drawing a second watermark image based on the first watermark image, including: drawing a fourth watermark image which accords with the number of watermarks and the watermark arrangement mode based on the first watermark image; and adjusting the size of the fourth watermark image according to the size of the initial image to obtain a second watermark image.

Optionally, the above processor may further execute program code for: according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image, including: determining the gray value of each of a plurality of first pixel points; determining the height value of each of the plurality of first pixel points according to the gray value of each of the plurality of first pixel points, wherein the height value of each of the plurality of first pixel points represents the height of an object point represented by the corresponding pixel point relative to an imaging plane; determining normal vectors of the first pixel points according to the height values of the first pixel points, wherein the normal vectors of the first pixel points are vectors perpendicular to a plane where an object point represented by the corresponding pixel point is located; determining respective illumination effects of the plurality of first pixel points according to respective normal vectors of the light source and the plurality of first pixel points; and adjusting the color values of the first pixel points according to the illumination effect of the first pixel points to obtain a third watermark image.

Optionally, the above processor may further execute program code for: determining a normal vector of each of the plurality of first pixel points according to the height value of each of the plurality of first pixel points, including: establishing a three-dimensional coordinate system, wherein an xoy plane in the three-dimensional coordinate system is positioned on a plane where the second watermark image is positioned, and a z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is positioned; determining respective coordinates of a plurality of first pixel points based on a three-dimensional coordinate system, wherein the respective z-axis coordinates of the plurality of first pixel points are respective height values of the plurality of first pixel points; and determining the normal vector of each of the plurality of first pixel points according to the coordinates of each of the plurality of first pixel points.

Optionally, the above processor may further execute program code for: determining the illumination effect of each of the plurality of first pixel points according to the normal vector of each of the light source and the plurality of first pixel points, including: determining coordinates of the light source based on the three-dimensional coordinate system; determining respective ray vectors of the plurality of first pixel points according to the coordinates of the light source and the coordinates of the plurality of first pixel points; and determining the illumination effect of each of the plurality of first pixel points according to the light vector and the normal vector of each of the plurality of first pixel points.

Optionally, the above processor may further execute program code for: according to the respective illumination effects of the plurality of first pixel points, respective color values of the plurality of first pixel points are adjusted to obtain a third watermark image, and the method further comprises the following steps: determining connecting lines corresponding to the plurality of first pixel points according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points; determining influence pixel points corresponding to the first pixel points respectively according to the connecting lines corresponding to the first pixel points, wherein the influence pixel points are pixel points located on the connecting lines corresponding to the first pixel points; determining a shielding effect of the corresponding first pixel point according to the height value affecting the pixel point; and adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect and the respective shielding effect of the plurality of first pixel points to obtain a third watermark image.

Optionally, the above processor may further execute program code for: the generating a target image based on the third watermark image by taking the initial image as a background, wherein the second pixel points in the third watermark image are in one-to-one correspondence with the third pixel points in the initial image, and the generating comprises the following steps: determining the brightness value of each of the plurality of second pixel points; and adjusting the color value of the corresponding third pixel point according to the brightness value of each of the plurality of second pixel points to generate a target image.

By adopting the embodiment of the invention, the image generation method is provided, and the initial image, the first watermark image, the light source set by the target account, the watermark number and the watermark arrangement mode are obtained; drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode; according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image; based on the third watermark image, the initial image is used as a background to generate a target image, wherein the target image is an image printed with the third watermark image, so that the purpose of adjusting the watermark effect is achieved, the technical effect of better meeting the user requirement is achieved, and the technical problem that the watermark effect cannot be adjusted according to the user requirement in the related art is solved.

Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program for instructing a terminal device to execute on associated hardware, the program may be stored in a non-volatile storage medium, and the storage medium may include: flash disk, read-only memory (ROM), random-access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

Embodiments of the present invention also provide a nonvolatile storage medium. Alternatively, in the present embodiment, the above-described nonvolatile storage medium may be used to store the program code executed by the image generation method provided in the above-described embodiment.

Alternatively, in this embodiment, the above-mentioned nonvolatile storage medium may be located in any one of the computer terminals in the computer terminal group in the computer network, or in any one of the mobile terminals in the mobile terminal group.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: acquiring an initial image and a first watermark image, and setting a light source, the number of watermarks and a watermark arrangement mode of a target account; drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement mode; according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image; and generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: according to the number of watermarks and the watermark arrangement mode, drawing a second watermark image based on the first watermark image, including: drawing a fourth watermark image which accords with the number of watermarks and the watermark arrangement mode based on the first watermark image; and adjusting the size of the fourth watermark image according to the size of the initial image to obtain a second watermark image.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image, including: determining the gray value of each of a plurality of first pixel points; determining the height value of each of the plurality of first pixel points according to the gray value of each of the plurality of first pixel points, wherein the height value of each of the plurality of first pixel points represents the height of an object point represented by the corresponding pixel point relative to an imaging plane; determining normal vectors of the first pixel points according to the height values of the first pixel points, wherein the normal vectors of the first pixel points are vectors perpendicular to a plane where an object point represented by the corresponding pixel point is located; determining respective illumination effects of the plurality of first pixel points according to respective normal vectors of the light source and the plurality of first pixel points; and adjusting the color values of the first pixel points according to the illumination effect of the first pixel points to obtain a third watermark image.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: determining a normal vector of each of the plurality of first pixel points according to the height value of each of the plurality of first pixel points, including: establishing a three-dimensional coordinate system, wherein an xoy plane in the three-dimensional coordinate system is positioned on a plane where the second watermark image is positioned, and a z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is positioned; determining respective coordinates of a plurality of first pixel points based on a three-dimensional coordinate system, wherein the respective z-axis coordinates of the plurality of first pixel points are respective height values of the plurality of first pixel points; and determining the normal vector of each of the plurality of first pixel points according to the coordinates of each of the plurality of first pixel points.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: determining the illumination effect of each of the plurality of first pixel points according to the normal vector of each of the light source and the plurality of first pixel points, including: determining coordinates of the light source based on the three-dimensional coordinate system; determining respective ray vectors of the plurality of first pixel points according to the coordinates of the light source and the coordinates of the plurality of first pixel points; and determining the illumination effect of each of the plurality of first pixel points according to the light vector and the normal vector of each of the plurality of first pixel points.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: according to the respective illumination effects of the plurality of first pixel points, respective color values of the plurality of first pixel points are adjusted to obtain a third watermark image, and the method further comprises the following steps: determining connecting lines corresponding to the plurality of first pixel points according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points; determining influence pixel points corresponding to the first pixel points respectively according to the connecting lines corresponding to the first pixel points, wherein the influence pixel points are pixel points located on the connecting lines corresponding to the first pixel points; determining a shielding effect of the corresponding first pixel point according to the height value affecting the pixel point; and adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect and the respective shielding effect of the plurality of first pixel points to obtain a third watermark image.

Optionally, in the present embodiment, the non-volatile storage medium is arranged to store program code for performing the steps of: the generating a target image based on the third watermark image by taking the initial image as a background, wherein the second pixel points in the third watermark image are in one-to-one correspondence with the third pixel points in the initial image, and the generating comprises the following steps: determining the brightness value of each of the plurality of second pixel points; and adjusting the color value of the corresponding third pixel point according to the brightness value of each of the plurality of second pixel points to generate a target image.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a non-volatile storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a read-only memory (ROM), a random access memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. An image generation method, comprising:

acquiring an initial image and a first watermark image, and setting a light source, the number of watermarks and a watermark arrangement mode of a target account;

Drawing a second watermark image based on the first watermark image according to the number of the watermarks and the watermark arrangement mode;

according to the light source, adjusting respective color values of a plurality of first pixel points in the second watermark image to obtain a third watermark image;

and generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image.

2. The method according to claim 1, wherein the drawing a second watermark image based on the first watermark image according to the number of watermarks and the watermark arrangement includes:

drawing a fourth watermark image conforming to the number of watermarks and the watermark arrangement mode based on the first watermark image;

and adjusting the size of the fourth watermark image according to the size of the initial image to obtain the second watermark image.

3. The method according to claim 1, wherein adjusting the color values of each of the plurality of first pixels in the second watermark image according to the light source to obtain a third watermark image includes:

Determining the gray value of each of the plurality of first pixel points;

Determining respective height values of the plurality of first pixel points according to respective gray values of the plurality of first pixel points, wherein the respective height values of the plurality of first pixel points represent the heights of object points represented by corresponding pixel points relative to an imaging plane;

Determining respective normal vectors of the plurality of first pixel points according to respective height values of the plurality of first pixel points, wherein the respective normal vectors of the plurality of first pixel points are vectors perpendicular to a plane where an object point represented by a corresponding pixel point is located;

Determining respective illumination effects of the plurality of first pixel points according to respective normal vectors of the light source and the plurality of first pixel points;

And adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect of the plurality of first pixel points to obtain a third watermark image.

4. A method according to claim 3, wherein determining the normal vector of each of the plurality of first pixels from the height value of each of the plurality of first pixels comprises:

establishing a three-dimensional coordinate system, wherein an xoy plane in the three-dimensional coordinate system is positioned on a plane where the second watermark image is positioned, and a z-axis of the three-dimensional coordinate system is perpendicular to the plane where the second watermark image is positioned;

Determining the coordinates of each of the plurality of first pixel points based on the three-dimensional coordinate system, wherein the z-axis coordinates of each of the plurality of first pixel points are the height values of each of the plurality of first pixel points;

And determining the normal vector of each of the plurality of first pixel points according to the coordinates of each of the plurality of first pixel points.

5. The method of claim 4, wherein determining the lighting effect of each of the plurality of first pixels from the light source and the normal vector of each of the plurality of first pixels comprises:

Determining coordinates of the light source based on the three-dimensional coordinate system;

determining respective ray vectors of the plurality of first pixel points according to the coordinates of the light source and the coordinates of the plurality of first pixel points;

And determining the illumination effect of each of the plurality of first pixel points according to the light vector and the normal vector of each of the plurality of first pixel points.

6. A method according to claim 3, wherein said adjusting the color values of each of the plurality of first pixels according to the illumination effect of each of the plurality of first pixels to obtain a third watermark image further comprises:

determining a connecting line corresponding to the plurality of first pixel points according to the coordinates of the light source and the coordinates of each of the plurality of first pixel points;

Determining influence pixel points corresponding to the first pixel points respectively according to the connecting lines corresponding to the first pixel points, wherein the influence pixel points are pixel points located on the connecting lines corresponding to the first pixel points;

Determining a shielding effect of the corresponding first pixel point according to the height value of the influence pixel point;

And adjusting the respective color values of the plurality of first pixel points according to the respective illumination effect and the respective shielding effect of the plurality of first pixel points to obtain the third watermark image.

7. The method according to any one of claims 1 to 6, wherein the plurality of second pixels in the third watermark image and the plurality of third pixels in the initial image are in one-to-one correspondence, and the generating, based on the third watermark image, a target image with the initial image as a background includes:

Determining the brightness value of each of the plurality of second pixel points;

and adjusting the color value of the corresponding third pixel point according to the brightness value of each of the plurality of second pixel points to generate the target image.

8. An image generating apparatus, comprising:

The acquisition module is used for acquiring the initial image, the first watermark image, and the light source, the watermark number and the watermark arrangement mode set by the target account;

The drawing module is used for drawing a second watermark image based on the first watermark image according to the number of the watermarks and the watermark arrangement mode;

The adjusting module is used for adjusting the respective color values of the first pixel points in the second watermark image according to the light source to obtain a third watermark image;

And the generation module is used for generating a target image based on the third watermark image by taking the initial image as a background, wherein the target image is an image printed with the third watermark image.

9. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored program, wherein the program, when run, controls a device in which the non-volatile storage medium is located to perform the image generation method of any one of claims 1 to 7.

10. A computer device, comprising: a memory and a processor, wherein the memory is configured to store,

The memory stores a computer program;

the processor configured to execute a computer program stored in the memory, the computer program when executed causing the processor to perform the image generation method of any one of claims 1 to 7.