CN112399160B

CN112399160B - Color management method and device, terminal and storage medium

Info

Publication number: CN112399160B
Application number: CN201910766163.3A
Authority: CN
Inventors: 孙剑波
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2023-04-25
Anticipated expiration: 2039-08-19
Also published as: CN112399160A

Abstract

The embodiment of the application discloses a color management method and device, a terminal and a storage medium, wherein the color management method is applied to the color management device and comprises the following steps: establishing a color database and generating an effect database corresponding to the color database; acquiring spectral response parameters corresponding to a shooting device of a terminal; generating a corresponding relation between the scene and the parameters based on the spectral response parameters, the color database and the effect database; and transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters.

Description

Color management method and device, terminal and storage medium

Technical Field

The embodiment of the application relates to the technical field of electronic equipment, in particular to a color management method and device, a terminal and a storage medium.

Background

The image signal processing (Image Signal Processing, ISP) mainly aims at post-processing the signals output by the front-end image sensor, and has the main functions of linear correction, noise removal, dead point removal, interpolation, white balance, automatic exposure control and the like, and the ISP can restore site details better under different optical conditions, so that the imaging quality of a camera is determined to a great extent by the ISP technology.

Currently, when color management is performed by an ISP, manual debugging is mainly performed, for example, a debugging engineer uses a debugging tool of the ISP to repeatedly debug parameters in the ISP, so that an output effect reaches an ideal target. In the prior art, repeated parameter debugging is needed for different hardware modules, different scenes and different images, and the debugging result depends on subjective feeling of staff, so that the existing color management mode often has the problems of low debugging efficiency, poor intelligence and unstable debugging effect.

Disclosure of Invention

The embodiment of the application provides a color management method and device, a terminal and a storage medium, which can realize personalized control of different users, effectively improve the control effect and improve the intelligence of the color management device.

The technical scheme of the embodiment of the application is realized as follows:

the embodiment of the application provides a color management method, which is applied to color management equipment, and comprises the following steps:

establishing a color database and generating an effect database corresponding to the color database;

acquiring spectral response parameters corresponding to a shooting device of a terminal;

Generating a corresponding relation between a scene and parameters based on the spectral response parameters, the color database and the effect database;

and transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters.

The embodiment of the application provides a color management method, which is applied to a terminal and comprises the following steps:

receiving the corresponding relation between the scene and the parameters transmitted by the color management equipment;

and carrying out color management on the current image according to the corresponding relation between the scene and the parameters to obtain the image after color management.

The embodiment of the application provides a color management device, which comprises: the establishing unit, the generating unit, the first obtaining unit, the transmitting unit,

the building unit is used for building a color database;

the generating unit is used for generating an effect database corresponding to the color database;

the first acquisition unit is used for acquiring spectral response parameters corresponding to the shooting device of the terminal;

the generating unit is further configured to generate a corresponding relationship between a scene and a parameter based on the spectral response parameter, the color database, and the effect database;

The transmission unit is used for transmitting the corresponding relation between the scene and the parameter to the terminal so that the terminal can realize color management according to the corresponding relation between the scene and the parameter.

The embodiment of the application provides a terminal, which comprises: a receiving unit and a second acquisition unit,

the receiving unit is used for receiving the corresponding relation between the scene and the parameter transmitted by the color management equipment;

the second obtaining unit is configured to perform color management on the current image according to the corresponding relationship between the scene and the parameter, and obtain a color-managed image.

The embodiment of the application provides a color management device, which comprises: the color management system comprises a first processor, a first memory storing instructions executable by the first processor, and the color management method is realized when the instructions are executed by the first processor.

The embodiment of the application provides a terminal, which comprises: and a second processor, a second memory storing instructions executable by the second processor, which when executed by the second processor, implement the color management method as described above.

The embodiment of the application provides a computer readable storage medium, on which a program is stored, for use in a color management device and a terminal, the program, when executed by a processor, implementing a color management method as described above.

The embodiment of the application provides a color management method, a color management device, a terminal and a storage medium, wherein the color management device establishes a color database and generates an effect database corresponding to the color database; acquiring spectral response parameters corresponding to a shooting device of a terminal; generating a corresponding relation between the scene and the parameters based on the spectral response parameters, the color database and the effect database; transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters; after receiving the corresponding relation between the scene and the parameter transmitted by the color management equipment, the terminal performs color management on the current image according to the corresponding relation between the scene and the parameter, and obtains the image after color management. Therefore, in the application, the color management device can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then parameters for color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management device. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

Drawings

Fig. 1 is a schematic implementation flow diagram of a color management method according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a color management system;

FIG. 3 is a schematic diagram of color information under a certain scene;

fig. 4 is a second implementation flow chart of a color management method according to an embodiment of the present application;

fig. 5 is a schematic diagram of a third implementation flow of a color management method according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a color management method;

fig. 7 is a schematic diagram of a composition structure of a color management apparatus according to an embodiment of the present application;

fig. 8 is a schematic diagram of a second component structure of the color management device according to the embodiment of the present application;

fig. 9 is a schematic diagram of a composition structure of a terminal according to an embodiment of the present application;

fig. 10 is a schematic diagram of a second component structure of the terminal according to the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting of the application. It should be noted that, for convenience of description, only a portion related to the related application is shown in the drawings.

The image signal processing ISP mainly has the function of post-processing the signals output by the front-end image sensor, and has the main functions of linear correction, noise removal, dead pixel removal, interpolation, white balance, automatic exposure control and the like, and the ISP can restore site details better under different optical conditions only by relying on the ISP, so that the imaging quality of a camera is determined to a great extent by the ISP technology. It can be divided into two forms of independent and integrated forms.

The Firmware (Firmware) of an ISP mainly comprises three parts, one part is an ISP control unit and a basic algorithm library, the other part is a 3A algorithm library of Automatic exposure (Automatic Exposure, AE), automatic white balance (Automatic White Balance, AWB) and Automatic Focus (AF), and the other part is a sensor library. The basic idea of Firmware design is to separately provide a 3A algorithm library, schedule a base algorithm library and a 3A algorithm library by an ISP control unit, and simultaneously register function callbacks to the ISP base algorithm library and the 3A algorithm library by a sensor library, respectively, so as to realize differentiated sensor adaptation. Wherein, different sensors register control functions with the ISP algorithm library in the form of callback functions. When the ISP control unit dispatches the basic algorithm library and the 3A algorithm library, initialization parameters are acquired through the callback functions, and a sensor is controlled, such as exposure time adjustment, analog gain, digital gain adjustment, lens stepping focusing or aperture rotation and the like.

The existing color management has no existing scheme, and the parameters in the ISP, the 3A algorithm and other modules are debugged by a debugging engineer by using the debugging tool of the ISP, so that the output effect reaches an ideal target, and if the output effect does not reach the ideal target, the parameters are continuously adjusted until the effect reaches the standard. Specifically, the existing color management methods have the following disadvantages:

1. after replacing the camera module or other color related hardware, it is necessary to debug again, so that the debugging work is high in repeatability, low in efficiency, and free from precipitation.

2. The lighting condition of the photos taken in the debugging process is influenced by various factors such as climate, time and the like, so that the scene color is changed all the time, and besides the efficiency is influenced, the coverage of the eye effect is poor.

3. Various modules in the ISP, such as a color correction (Color Correction Matrix, CCM) module and a White Balance (WB) module, have limited color reproduction, and cannot take care of all scenes, thus making the final effect coverage limited.

In summary, when color management is performed by the ISP, the output effect is achieved to the ideal target mainly by manual debugging, for example, by debugging engineers using the debugging tools of the ISP to repeatedly debug the parameters in the ISP. In the prior art, repeated parameter debugging is needed for different hardware modules, different scenes and different images, and the debugging result depends on subjective feeling of staff, so that the existing color management mode often has the problems of low debugging efficiency, poor intelligence and unstable debugging effect.

The color management method can be respectively applied to the color management equipment and the terminal, the color management equipment can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then the parameters for performing color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management equipment. Therefore, when the color management is carried out, the repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, the debugging efficiency can be further improved, the debugging effect is improved, and the intelligence of the color management is greatly enhanced.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

An embodiment of the present application provides a color management method, which is applied to a color management device, fig. 1 is a schematic diagram of an implementation flow of the color management method provided in the embodiment of the present application, as shown in fig. 1, in the embodiment of the present application, the method for performing color management by the color management device may include the following steps:

Step 101, a color database is established, and an effect database corresponding to the color database is generated.

In an embodiment of the present application, the color management device may first create a color database, and then generate an effect database corresponding to the color database based on the color database.

Further, in the embodiment of the present application, the color management method may be applied to a color management device of a color management system, in particular, fig. 2 is a schematic diagram of the color management system, and as shown in fig. 2, the color management system may include a color management device, a terminal, a spectroilluminometer, and a detection device, where the spectroilluminometer may be used to collect color information of a photographic subject in a spectrum form; the detection device can be used for detecting quantum response of the shooting device of the terminal; the color management device may first establish and store a color database and an effect database based on color information collected by the spectroilluminometer, then generate a corresponding relationship between a scene and a parameter corresponding to the terminal in combination with a spectral response corresponding to the photographing device of the terminal, and transmit the corresponding relationship between the scene and the parameter to the terminal, so that the terminal may perform color management according to the corresponding relationship between the scene and the parameter.

Further, in the embodiment of the present application, when the color database is established, the color management device may receive the first scene information and the spectrum information corresponding to the shooting object, and then generate the correspondence of the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information. That is, there is corresponding spectral information for one photographic subject in one scene.

Further, in the embodiment of the present application, when receiving the first scene information and the spectrum information corresponding to the photographing object, the color management device may first receive the spectrum information collected by the spectroilluminometer, and then may acquire the first scene information corresponding to the spectrum information through the output operation.

It should be noted that, in the embodiment of the present application, the spectroilluminometer in the color management system may collect color information of different shooting objects in different scenes according to a spectrum form. Fig. 3 is a schematic diagram of color information in a certain scene, as shown in fig. 3, in the same scene, different photographic subjects correspond to different color information, for example, a spectroilluminometer collects the photographic subject A, B, C according to a spectrum form, so that spectrum information a, b, and c of the photographic subject A, B, C in the scene can be obtained, where the spectrum information a, b, and c is used to represent the color information of the photographic subject A, B, C.

Further, in the embodiment of the present application, the first scene information may include various information in a scene where the shooting object is located, for example, the first scene information may include different information of a scene light source, a scene position, a scene weather, a scene time, and the like corresponding to the shooting object.

Further, in the embodiment of the present application, after receiving the first scene information and the spectrum information of the shooting object collected by the spectroilluminometer, the color management device may generate a corresponding relationship among the object, the scene and the spectrum, and finally may establish a color database based on the corresponding relationship among the object, the scene and the spectrum. That is, in the present application, the color database established by the color management apparatus stores the spectrum information corresponding to different photographic subjects under different first scene information.

It should be noted that, in the embodiment of the present application, after the color management device creates the color database, the color management device may generate the effect database corresponding to the color database based on the color database. Specifically, when generating the effect database corresponding to the color database, the color management device may determine color effect information corresponding to the shooting object and the first scene information, then determine a corresponding relationship of the object, the scene and the effect according to the shooting object, the first scene information and the color effect information, and generate the effect database corresponding to the color database according to the corresponding relationship of the object, the scene and the effect.

It should be noted that, in the embodiment of the present application, the color management device may define colors output by different shooting objects under different first scene information, that is, define a target color to perform color adjustment, where the target color is color effect information.

Further, in the embodiment of the present application, the color management device may store the spectrum information and the color effect information corresponding to different photographic objects under different first scene information in a one-to-one correspondence manner through establishment of the color database and the effect database.

Step 102, acquiring spectral response parameters corresponding to a shooting device of the terminal.

In the embodiment of the application, the color management device may acquire the spectral response parameter corresponding to the photographing device of the terminal. Specifically, the color management device may obtain the spectral response parameter detected by the detection device. Wherein the detection device may be a quantum response test device.

It should be noted that, in the embodiment of the present application, the color management device may first establish a connection with the terminal before acquiring the spectral response parameter corresponding to the terminal detected by the detection device. Specifically, the color management device may first receive a connection request of the terminal, then transmit a connection response to the terminal in response to the connection request, and establish a connection with the terminal according to the connection response.

Further, in the embodiment of the present application, when the color management device establishes a connection with the terminal, the color management device may also send a connection request to the terminal first, and then establish a connection with the terminal through a connection response returned by the terminal.

It should be noted that, in the embodiment of the present application, the spectral response parameter is a spectral response, where the spectral response refers to a relationship between a quantum efficiency of a photocathode and an incident wavelength, that is, an ability of photons with different wavelengths to generate electron-hole pairs, and an intuitive physical meaning is a current response generated under a unit power. Quantum efficiency is divided into external quantum efficiency and internal quantum efficiency, and general quantum efficiency refers to external quantum efficiency, which refers to the ratio of the number of electrons generated in an internal and external circuit per unit time to the number of incident monochromatic photons per unit time. In summary, quantum efficiency= (1240×spectral response)/wavelength.

Further, in the embodiment of the present application, when the detection device detects the spectral response parameters, the detection device may specifically detect three spectral response parameters corresponding to the R, G, B three channels corresponding to the image capturing device of the terminal.

In the embodiment of the present application, the terminal may be any device having communication and storage functions and provided with a photographing device. For example: tablet computers, cell phones, electronic readers, remote controllers, personal computers (Personal Computer, PCs), notebook computers, vehicle-mounted devices, network televisions, wearable devices and the like.

And 103, generating the corresponding relation between the scene and the parameters based on the spectral response parameters, the color database and the effect database.

In the embodiment of the application, after the color management device establishes the color database and simultaneously generates the effect database corresponding to the color database and obtains the spectral response parameters corresponding to the photographing device of the terminal, the corresponding relation between the scene and the parameters can be generated according to the spectral response parameters, the color database and the effect database.

Further, in the embodiment of the present application, after the spectral response parameters corresponding to the terminal are obtained, the color management device may calculate and obtain, according to the spectral response parameters, a theoretical output value of the stored spectral information in the image capturing device of the terminal, that is, calculate and obtain the predicted output of the spectral information corresponding to the terminal.

It should be noted that, in the embodiment of the present application, after determining the predicted output of the spectrum information in the terminal according to the spectrum response parameter, the color management device may further combine the color database and the effect database according to the predicted output corresponding to the spectrum information to generate the color management parameters under different first scene information, so as to obtain the corresponding relationship between the scene and the parameters.

Further, in the embodiment of the present application, when the color management device generates the corresponding relationship between the scene and the parameter according to the prediction output, the color database and the effect database, the CCM parameter may be generated according to the prediction output, the color database and the effect database, and then the corresponding relationship between the scene and the parameter may be established according to the CCM parameter.

It should be noted that, in the embodiment of the present application, CCM is mainly used to correct color errors caused by color penetration between color blocks at the filter. The general color correction process is to compare the image captured by the image sensor with a standard image to calculate a correction matrix. The matrix is the color correction matrix of the image sensor. During application of the image sensor, and all images taken by the image sensor can be corrected using the matrix to obtain an image closest to the true color of the object. Typically, the process of correcting color is accompanied by an adjustment of color saturation. The saturation of a color refers to the purity of the color, and the higher the purity of a color, the more vivid it will be; the lower the purity, the less dull the performance. The higher the saturation of the RGB three primary colors, the wider the displayable color range.

Further, in the embodiment of the present application, when the color management device generates the corresponding relationship between the scene and the parameter according to the prediction output, the color database and the effect database, the WB parameter may be generated according to the prediction output, the color database and the effect database, and then the corresponding relationship between the scene and the parameter may be established according to the WB parameter.

It should be noted that, in the embodiment of the present application, white balance is an index describing the accuracy of white color after mixing of three primary colors of red, green and blue in a display, and it can solve a series of problems of color reproduction and hue processing. WB is a method for realizing that a camera image can accurately reflect the color condition of a subject, and has manual white balance, automatic white balance and the like. Many people encounter such problems when shooting with digital cameras: the image shot in the room of the fluorescent lamp will appear green, the scenery shot under the light of the tungsten filament in the room will be yellow, and the photo shot at the sun shadow is blue everywhere, because of the white balance setting. The human visual system has the characteristic of color constancy, so that human observation of things can not be influenced by the color of the light source. However, the image sensor itself does not have such a characteristic of color constancy, and thus, images photographed under different light rays are changed by the influence of the color of the light source. For example, an image taken in a clear sky may be bluish, while an object taken in candelas may be reddish in color. In order to eliminate the influence of the light source color on the imaging of the image sensor, the automatic white balance function simulates the characteristic of color constancy of the human visual system to eliminate the influence of the light source color on the image.

Further, in the embodiment of the present application, when generating the corresponding relationship between the scene and the parameter according to the prediction output, the Color database and the effect database, the Color management device may also generate the Color engineering parameter Color Engine and/or the Color classification parameter according to the prediction output, the Color database and the effect database, and then may continue to establish the corresponding relationship between the scene and the parameter according to the Color engineering parameter Color Engine and/or the Color classification parameter.

That is, in the embodiment of the present application, the Color management device may generate corresponding different Color management parameters under different first scene information based on the spectral response parameters, the Color database, and the effect database, wherein the Color management parameters may include, but are not limited to, CCM parameters, WB parameters, color engines, color classification parameters, and the like.

Step 104, transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal can realize color management according to the corresponding relation between the scene and the parameters.

In the embodiment of the application, after the color management device generates the corresponding relation between the scene and the parameters based on the spectral response parameters, the color database and the effect database, the corresponding relation between the scene and the parameters can be directly transmitted to the terminal, so that the terminal can realize color management according to the corresponding relation between the scene and the parameters.

It should be noted that, in the embodiment of the present application, the correspondence between the scene and the parameter generated by the color management device is obtained by calculating according to the spectral response parameter corresponding to the photographing device of the terminal, that is, the correspondence between the scene and the parameter corresponds to the terminal, so that the color management device transmits the correspondence between the scene and the parameter to the terminal, and the terminal can perform color management on the image by using the correspondence between the scene and the parameter.

Further, in the embodiment of the present application, the color management device may generate, for different terminals, parameters for performing color management, which are adapted to the photographing device of the terminal, in combination with spectral response parameters corresponding to the photographing device of the terminal, where the parameters correspond to the first scene information and are suitable for performing color management on images in different scenes, based on the color database and the effect database that are established by the first scene information and the spectral information. Therefore, according to the color management method, the color database and the effect database established and stored by the color management device store the color information and the target effect corresponding to different first scene information, and based on the color database and the effect database, the color management equipment can carry out color management and image processing according to the corresponding relation between the scene corresponding to the shooting device and the parameter by the corresponding relation between the scene corresponding to the shooting device and the parameter according to the spectral response parameters of different shooting devices, so that repeated debugging is not needed depending on subjective feelings of staff, and the debugging efficiency and the debugging effect are improved.

The color management method provided by the embodiment of the application is applied to color management equipment, and the color management equipment establishes a color database and generates an effect database corresponding to the color database; acquiring spectral response parameters corresponding to a shooting device of a terminal; generating a corresponding relation between the scene and the parameters based on the spectral response parameters, the color database and the effect database; and transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters. Therefore, in the application, the color management device can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then parameters for color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management device. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

Based on the above embodiments, in yet another embodiment of the present application, a method for creating a color database by a color management device may include the steps of:

step 201, receiving first scene information and spectrum information of a shooting object; wherein one first scene information corresponds to one spectrum information.

In the embodiment of the present application, the color management apparatus may first receive the first scene information and the spectrum information of the photographing object. Specifically, under one first scene information, one spectrum information corresponding to the photographic subject may be acquired.

Further, in the embodiment of the present application, in a color management system including a color management device, a terminal, a spectroilluminometer, and a detection device, the spectroilluminometer may collect colors of a photographic subject in a spectrum form under first scene information, so as to obtain spectrum information of the photographic subject.

In the embodiment of the present application, the color management device may acquire the spectrum information of the photographic subject acquired by the spectroilluminometer, and then may acquire the first scene information corresponding to the spectrum information, and specifically, the color management device may acquire the first scene information corresponding to the spectrum information according to the input operation of the user.

Step 202, determining the corresponding relation among the object, the scene and the spectrum according to the shot object, the first scene information and the spectrum information.

And 203, establishing a color database according to the corresponding relation among the object, the scene and the spectrum.

In the embodiment of the application, after receiving the first scene information and the spectrum information of the shooting object, the color management device can determine the corresponding relation among the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information, so that a color database can be established according to the corresponding relation among the object, the scene and the spectrum.

It should be noted that, in the embodiment of the present application, after the color management device obtains the first scene information and the spectrum information corresponding to the shooting object, the color management device may establish a corresponding relationship related to each other, that is, establish a corresponding relationship of the object, the scene and the spectrum, for different shooting objects, different first scene information and different spectrum information. That is, for a subject, there is corresponding spectral information in one first scene information.

Further, in the embodiment of the present application, after the correspondence between the object, the scene and the spectrum is established, the color management device may store the correspondence between the object, the scene and the spectrum, to obtain the color database.

It should be noted that, in the embodiment of the present application, the color database stores the first scene information and the spectrum information corresponding to the shooting object, for example, the color database may store the spectrum information of the real object a according to specific scene information such as time, light source, weather, address, etc., that is, according to the correspondence between the object, the scene and the spectrum, so that the searching and the arrangement may be convenient.

Further, in the embodiment of the present application, the establishment of the color database including the first scene information may make the spectrum information of the shooting object no longer affected by the factors of the scenes such as seasons, climates, and the like when performing color management. Meanwhile, the color database can be a continuously updated live-action color database, namely a complete live-action database, so that the color parameter coverage is good, and the color database can be continuously deposited, so that the color coverage is improved.

In an embodiment of the present application, further, the method for generating the effect database corresponding to the color database by the color management device may include the following steps:

step 301, determining color effect information corresponding to a shooting object and first scene information; wherein one first scene information corresponds to one color effect information.

In the embodiment of the present application, the color management apparatus may determine the color effect information corresponding to the photographic subject and the first scene information using the data in the color database after creating the color database. Specifically, under one first scene information, one color effect information corresponding to the photographic subject may be determined.

It should be noted that, in the embodiment of the present application, the color management device may define a target effect for a photographic object under the first scene information, where the target effect to be defined is different for different color management modes, for example, if color management is performed by CCM, the color management device may set color effect information representing a target color when setting the target effect.

Further, in the embodiment of the present application, if color management is performed through CCM, the color management apparatus may set a target color for each photographic object corresponding to each first scene information, that is, set corresponding color effect information, using a node method based on the first scene information and photographic objects stored in the color database.

Step 302, determining the corresponding relation among the object, the scene and the effect according to the shooting object, the first scene information and the color effect information.

And 303, establishing an effect database according to the corresponding relation among the objects, the scenes and the effects.

In the embodiment of the application, after determining the color effect information corresponding to the shooting object and the first scene information, the color management device can determine the corresponding relation of the object, the scene and the effect according to the shooting object, the first scene information and the color effect information, so that an effect database can be established according to the corresponding relation of the object, the scene and the effect.

It should be noted that, in the embodiment of the present application, after the color management device obtains the first scene information and the color effect information corresponding to the shooting object, the color management device may establish a corresponding relationship of each other with respect to different shooting objects, different first scene information, and different color effect information, that is, establish a corresponding relationship of the objects, the scenes, and the effects. That is, for a photographic subject, there is corresponding color effect information under one first scene information.

Further, in the embodiment of the present application, after the color management device establishes the correspondence between the object, the scene and the effect, the correspondence between the object, the scene and the effect may be stored, so as to obtain the effect database.

It should be noted that, in the embodiment of the present application, the effect database stores the first scene information and the color effect information corresponding to the shooting object, for example, the effect database may store the color effect information of the real object a according to specific scene information such as time, light source, weather, address, etc., that is, according to the corresponding relationship of the object, the scene, and the effect, so that the searching and the arrangement may be convenient.

Further, in the embodiment of the present application, the effect database including the first scene information is established, so that the spectrum information of the shooting object is not affected by the factors of the scenes such as seasons, climates, and the like when the color management is performed. Meanwhile, the effect database can be a continuously updated live-action color effect database, namely a complete live-action effect database, so that the effect parameter coverage is good, and the effect coverage can be improved by continuous precipitation.

step 304, determining gray type information corresponding to the shooting object and the first scene information; wherein one first scene information corresponds to one gray type information.

In the embodiment of the present application, the color management apparatus may determine the gradation type information corresponding to the photographic subject and the first scene information using the data in the color database after creating the color database. Specifically, in one first scene information, one gray type information corresponding to the photographing object may be determined.

It should be noted that, in the embodiment of the present application, the color management device may define a target effect for a photographic object under the first scene information, where the target effect to be defined is different for different color management modes, for example, if the color management is performed by WB, the color management device may set a gray scale type information indicating a target color block when setting the target effect.

Further, in the embodiment of the present application, if color management is performed by WB, the color management apparatus may set a target color gamut for each photographic subject corresponding to each first scene information, that is, set corresponding gray-scale type information, using a color block method based on the first scene information and the photographic subject stored in the color database.

Step 305, determining the corresponding relation among the object, the scene and the gray scale according to the shot object, the first scene information and the gray scale type information.

And 306, establishing an effect database according to the corresponding relation among the object, the scene and the gray scale.

In the embodiment of the application, after the gray scale type information corresponding to the shooting object and the first scene information is determined, the color management device can determine the corresponding relation among the object, the scene and the gray scale according to the shooting object, the first scene information and the gray scale type information, so that an effect database can be established according to the corresponding relation among the object, the scene and the gray scale.

It should be noted that, in the embodiment of the present application, after the color management device obtains the first scene information and the gray scale type information corresponding to the shooting object, the color management device may establish a corresponding relationship of each other with respect to different shooting objects, different first scene information, and different gray scale type information, that is, establish a corresponding relationship of the object, the scene, and the gray scale. That is, for one photographic subject, there is corresponding gradation type information under one first scene information.

Further, in the embodiment of the present application, after the color management device establishes the correspondence between the object, the scene and the gray scale, the color management device may store the correspondence between the object, the scene and the gray scale, so as to obtain the effect database.

It should be noted that, in the embodiment of the present application, the effect database stores the first scene information and the gray level type information corresponding to the shooting object, for example, the effect database may store the gray level type information of the real object a according to specific scene information such as time, light source, weather, address, etc., that is, according to the corresponding relationship of the object, the scene and the gray level, so that the searching and the arrangement may be convenient.

The color management method provided by the embodiment of the application is applied to color management equipment, the color management equipment can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then parameters for performing color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management equipment. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

Based on the above embodiments, in still another embodiment of the present application, the method for generating the correspondence between the scene and the parameter by the color management device based on the spectral response parameter, the color database, and the effect database may include the steps of:

and 103a, determining the prediction output corresponding to the spectrum information based on the spectrum response parameters.

In the embodiment of the application, after the color management device establishes the color database and simultaneously generates the effect database corresponding to the color database and obtains the spectral response parameters corresponding to the photographing device of the terminal, the prediction output corresponding to the spectral information can be determined based on the spectral response parameters.

It should be noted that, in the embodiment of the present application, after obtaining the spectral response parameter corresponding to the image capturing device of the terminal detected by the detection device, the color management device may calculate, using the spectral response parameter, a theoretical output condition that the spectral information corresponds to the image capturing device of the terminal and may be obtained, that is, determine a predicted output corresponding to the spectral information.

Further, in the embodiment of the present application, the image capturing devices in different terminals may have different spectral response parameters, so the color management apparatus may directly obtain the theoretical output situation of the spectral information on the image capturing device according to the determination of the predicted output of the spectral information by the spectral response parameters corresponding to the image capturing device of the terminal.

And 103b, generating the corresponding relation between the scene and the parameters according to the prediction output, the color database and the effect database.

In the embodiment of the application, after determining the prediction output corresponding to the spectrum information based on the spectrum response parameter, the color management device may generate the corresponding relationship between the scene and the parameter according to the prediction output, the color database and the effect database.

Further, in the embodiment of the present application, the target effect to be defined is also different for different color management modes, so that when generating color management parameters under different first scene information according to the prediction output, the color database and the effect database, the color management parameters to be obtained are also different. For example, if color management is performed by CCM, the color management parameters under the generated different first scene information may be CCM parameters; if the color management is performed through CCM, the generated color management parameters under different first scene information can be CCM parameters; if color management is performed by WB, the color management parameters under the generated different first scene information may be WB parameters.

It should be noted that, in the embodiment of the present application, after generating the color management parameters under different first scene information, the color management device may obtain the correspondence between the scene and the parameters. Specifically, when the color management device generates the corresponding relation between the scene and the parameter according to the prediction output, the color database and the effect database, the color management device may generate the CCM parameter according to the prediction output, the color database and the effect database, and then establish the corresponding relation between the scene and the parameter according to the CCM parameter; or generating WB parameters according to the prediction output, the color database and the effect database; and then establishing the corresponding relation between the scene and the parameters according to the WB parameters.

It should be noted that, in the embodiment of the present application, when the color management device generates the corresponding relationship between the scene and the parameter according to the prediction output, the color database and the effect database, the color management device may generate the color engineering parameter and/or the color classification parameter according to the prediction output, the color database and the effect database; and establishing a corresponding relation between the scene and the parameters according to the color engineering parameters and/or the color classification parameters.

An embodiment of the present application provides a color management method, which is applied to a terminal, and fig. 4 is a schematic diagram of a implementation flow chart of the color management method provided in the embodiment of the present application, as shown in fig. 4, where in the embodiment of the present application, the method for performing color management by the terminal may include the following steps:

step 401, receiving a corresponding relation between a scene and a parameter transmitted by a color management device.

In the embodiment of the application, the terminal may first receive the corresponding relationship between the scene and the parameter transmitted by the color management device. The corresponding relation between the scene and the parameters is used for carrying out color management on images under different scenes.

Further, in the embodiment of the present application, the color management method may be applied to a terminal of a color management system, and in particular, based on the above-described fig. 2, the color management system may include a color management device, a terminal, a spectroilluminometer, and a detection device. The color management device can firstly establish and store a color database and an effect database based on color information acquired by the spectroilluminometer, then generate a corresponding relation between a scene corresponding to the terminal and a parameter by combining a spectrum response corresponding to the shooting device of the terminal, and transmit the corresponding relation between the scene and the parameter to the terminal, so that the terminal can perform color management according to the corresponding relation between the scene and the parameter.

It should be noted that, in the embodiment of the present application, before receiving the corresponding relationship between the scene and the parameter transmitted by the color management device, the terminal may first establish a connection with the color management device. Specifically, the terminal may receive a connection request of the color management device first, then transmit a connection response to the color management device in response to the connection request, and establish a connection with the color management device according to the connection response.

Further, in the embodiment of the present application, when the terminal establishes a connection with the color management device, the terminal may also send a connection request to the color management device first, and then establish a connection with the color management device through a connection response returned by the color management device.

And step 402, performing color management on the current image according to the corresponding relation between the scene and the parameters to obtain the image after color management.

In the embodiment of the application, after receiving the corresponding relation between the scene and the parameter transmitted by the color management device, the terminal can perform color management on the current image according to the corresponding relation between the scene and the parameter so as to obtain the image after color management.

It should be noted that, in the embodiment of the present application, the terminal needs to acquire the current image before performing color management on the current image. Specifically, the terminal may acquire the current image through a photographing device configured by the terminal, extract the current image from a pre-stored image database, and may also receive the current image sent by other devices.

Further, in the embodiment of the present application, the terminal performs color management on the current image according to the corresponding relationship between the scene and the parameter to obtain the image after color management, and first determines the scene information corresponding to the current image, that is, the second scene information, so that the color management parameter corresponding to the second scene information can be determined from the corresponding relationship between the scene and the parameter, so as to perform color management on the current image according to the color management parameter.

It should be noted that, in the embodiment of the present application, for different color management modes, the color management parameters that the terminal needs to obtain are also different, for example, if color management is performed through CCM, the terminal may determine the CCM parameter corresponding to the second scene information from the corresponding relationship between the scene and the parameters; if the color management is performed through WB, the terminal may determine a WB parameter corresponding to the second scene information from the correspondence of the scene and the parameter.

Further, in the embodiment of the present application, when determining the color management parameter corresponding to the second scene information from the correspondence between the scene and the parameter, the terminal may further obtain the corresponding color engineering parameter and the color classification parameter based on the second scene information.

In summary, in the embodiment of the present application, the color management parameters may include at least one of CCM parameters, WB parameters, color engineering parameters, and color classification parameters.

In an embodiment of the present application, further, the method for performing color management on the current image by the terminal according to the corresponding relationship between the scene and the parameter, and obtaining the image after color management may include the following steps:

step 402a, performing scene classification on the current image to obtain second scene information corresponding to the current image.

In the embodiment of the application, the terminal may perform scene classification on the current image first, so as to determine a specific scene in the current image, that is, obtain second scene information corresponding to the current image.

Further, in the embodiment of the present application, the second scene information may include various information in a scene where the shooting object in the current image is located, for example, the second scene information may include different information of a scene light source, a scene position, a scene weather, a scene time, and the like corresponding to the shooting object.

It should be noted that, in the embodiment of the present application, when the terminal performs scene classification on the current image, the terminal may perform feature extraction on the current image, specifically, may extract specific feature information such as brightness features, color features, shape features, artificial intelligence (Artificial Intelligence, AI) features and the like in the current image, and then perform scene classification on the current image according to the extracted feature information, so as to obtain second scene information corresponding to the current image.

Step 402b, obtaining color management parameters according to the second scene information and the corresponding relation between the scene and the parameters.

In the embodiment of the application, after performing scene classification on the current image and obtaining the second scene information corresponding to the current image, the terminal may obtain the color management parameter according to the second scene information and the corresponding relationship between the scene and the parameter.

It should be noted that, in the embodiment of the present application, the correspondence between the scene and the parameter sent by the color management device to the terminal includes specific parameters for performing color management under different scenes, so after determining the second scene information corresponding to the current image, the terminal may determine the color management parameter corresponding to the second scene information from the correspondence between the scene and the parameter.

Step 402c, obtaining a color-managed image corresponding to the current image based on the color management parameters.

In the embodiment of the application, after obtaining the color management parameters according to the second scene information and the corresponding relation between the scene and the parameters, the terminal may obtain the color-managed image corresponding to the current image based on the color management parameters.

It should be noted that, in the embodiment of the present application, after the terminal obtains the color management parameter corresponding to the second scene information of the current image, the color management may be performed on the current image by using the color management parameter, so that the current image may reach the target effect preset by the color management device, and the image after color management is obtained.

The embodiment of the application provides a color management method, which is applied to a terminal, and after receiving the corresponding relation between a scene and parameters transmitted by color management equipment, the terminal performs color management on a current image according to the corresponding relation between the scene and the parameters to obtain a color-managed image. Therefore, in the application, the color management device can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then parameters for color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management device. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

An embodiment of the present application provides a color management method, which is applied to a color management device and a terminal, and fig. 5 is a schematic diagram of a implementation flow of the color management method provided in the embodiment of the present application, as shown in fig. 5, where in the embodiment of the present application, the method for performing color management by the color management device and the terminal may include the following steps:

step 501, the color management device establishes a color database and generates an effect database corresponding to the color database.

Further, in the embodiment of the present application, the color management method may be applied to a color management device and a terminal of a color management system, in particular, fig. 6 is a schematic diagram of an architecture of the color management method, and as shown in fig. 6, the color management system 0 may include a color management device 1, a terminal 2, a spectroilluminometer 3, and a detection device 4, where the spectroilluminometer 3 may be used to collect color information of a photographic subject in a spectral form; the detection device 4 may be used for detecting a quantum response of a photographing device of the terminal, so as to obtain a spectral response parameter z corresponding to the photographing device of the terminal; the color management device 1 may first establish and store a color database x and an effect database y based on color information collected by the spectroilluminometer, then combine a spectral response parameter z corresponding to the photographing device of the terminal 2 to generate a corresponding relationship p between a scene and a parameter corresponding to the terminal, and transmit the corresponding relationship p between the scene and the parameter to the terminal 2, so that the terminal 2 may perform color management according to the corresponding relationship p between the scene and the parameter. Specifically, the terminal 2 may first perform scene classification on the current image to be color-managed to obtain corresponding scene information q, and then may generate a corresponding color management parameter r based on the corresponding relationship p between the scene and the parameter, so that the current image may be color-managed by using the color management parameter r.

Step 502, the color management device obtains spectral response parameters corresponding to the photographing device of the terminal.

It should be noted that, in the embodiment of the present application, the color management device may first establish a connection with the terminal before acquiring the spectral response parameter corresponding to the terminal detected by the detection device.

In step 503, the color management device generates a corresponding relationship between the scene and the parameters based on the spectral response parameters, the color database and the effect database.

Further, in an embodiment of the present application, the Color management device may generate corresponding different Color management parameters under different first scene information based on the spectral response parameter, the Color database, and the effect database, where the Color management parameters may include, but are not limited to, CCM parameters, WB parameters, color Engine, color classification parameters, and the like.

Step 504, the color management device transmits the corresponding relation between the scene and the parameter to the terminal, so that the terminal realizes color management according to the corresponding relation between the scene and the parameter.

And 505, the terminal performs color management on the current image according to the corresponding relation between the scene and the parameters, and obtains the image after color management.

Further, in an embodiment of the present application, the color management parameters may include at least one of CCM parameters, WB parameters, color engineering parameters, and color classification parameters.

The embodiment of the application provides a color management method, which is applied to color management equipment and a terminal, wherein the color management equipment can acquire and determine the spectrum information and the target color effect of a shooting object under different scene information in advance, so that a color database and an effect database can be established, then the parameters for color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to shooting devices of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on a current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management equipment. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

Based on the above embodiments, in another embodiment of the present application, fig. 7 is a schematic diagram of a composition structure of a color management device according to an embodiment of the present application, and as shown in fig. 7, the color management device 1 according to an embodiment of the present application may include: a building unit 11, a generating unit 12, a first obtaining unit 13, a transmitting unit 14.

The establishing unit 11 is configured to establish a color database;

the generating unit 12 is configured to generate an effect database corresponding to the color database;

the first obtaining unit 13 is configured to obtain a spectral response parameter corresponding to a shooting device of the terminal;

the generating unit 12 is further configured to generate a correspondence between a scene and a parameter based on the spectral response parameter, the color database, and the effect database;

the transmission unit 14 is configured to transmit the correspondence between the scene and the parameter to the terminal, so that the terminal implements color management according to the correspondence between the scene and the parameter.

Further, in the embodiment of the present application, the establishing unit 11 is specifically configured to receive the first scene information and the spectrum information of the shooting object; wherein one first scene information corresponds to one spectrum information; determining the corresponding relation among the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information; and establishing the color database according to the corresponding relation among the object, the scene and the spectrum.

Further, in the embodiment of the present application, the generating unit 12 is specifically configured to determine color effect information corresponding to the shooting object and the first scene information; wherein one first scene information corresponds to one color effect information; determining the corresponding relation among the object, the scene and the effect according to the shooting object, the first scene information and the color effect information; and establishing the effect database according to the corresponding relation among the object, the scene and the effect.

Further, in the embodiment of the present application, the generating unit 12 is further specifically configured to determine gray-scale type information corresponding to the shooting object and the first scene information; wherein one first scene information corresponds to one gray type information; determining the corresponding relation among the object, the scene and the gray scale according to the shooting object, the first scene information and the gray scale type information; and establishing the effect database according to the corresponding relation among the object, the scene and the gray scale.

Further, in the embodiment of the present application, the establishing unit 11 is further specifically configured to receive the spectrum information collected by the spectroilluminometer; and acquiring the first scene information corresponding to the spectrum information through an input operation.

Further, in the embodiment of the present application, the establishing unit 11 is further configured to receive a connection request of the terminal before the obtaining the spectral response parameter corresponding to the photographing device of the terminal; and responding to the connection request, sending a connection response to the terminal, and establishing connection with the terminal according to the connection response.

Further, in the embodiment of the present application, the first obtaining unit 13 is specifically configured to obtain the spectral response parameter detected by the detecting device.

Further, in the embodiment of the present application, the generating unit 12 is further specifically configured to determine, based on the spectral response parameter, a prediction output corresponding to the spectral information; and generating the corresponding relation between the scene and the parameters according to the prediction output, the color database and the effect database.

Further, in the embodiment of the present application, the generating unit 12 is further specifically configured to generate CCM parameters according to the prediction output, the color database, and the effect database; and establishing the corresponding relation between the scene and the parameters according to the CCM parameters.

Further, in the embodiment of the present application, the generating unit 12 is further specifically configured to generate WB parameters according to the prediction output, the color database, and the effect database; and establishing a corresponding relation between the scene and the parameter according to the WB parameter.

Further, in the embodiment of the present application, the generating unit 12 is further specifically configured to generate a color engineering parameter and/or a color classification parameter according to the prediction output, the color database, and the effect database; and establishing the corresponding relation between the scene and the parameters according to the color engineering parameters and/or the color classification parameters.

Fig. 8 is a schematic diagram of a second component structure of the color management device according to the embodiment of the present application, as shown in fig. 8, the color management device 1 according to the embodiment of the present application may further include a first processor 15, a first memory 16 storing executable instructions of the first processor 15, and further, the color management device 1 may further include a first communication interface 17, and a first bus 18 for connecting the first processor 15, the first memory 16, and the first communication interface 17.

In an embodiment of the present application, the first processor 15 may be at least one of an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device, DSPD), a programmable logic device (ProgRAMmable Logic Device, PLD), a field programmable gate array (Field ProgRAMmable Gate Array, FPGA), a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic device for implementing the above-mentioned processor function may be other for different apparatuses, and embodiments of the present application are not specifically limited. The color management device 1 may further comprise a first memory 16, which first memory 16 may be connected to the first processor 15, wherein the first memory 16 is adapted to store executable program code comprising computer operation instructions, which first memory 16 may comprise a high speed RAM memory, and may further comprise a non-volatile memory, e.g. at least two disk memories.

In the embodiment of the present application, the first bus 18 is used to connect the first communication interface 17, the first processor 15 and the first memory 16 and the mutual communication between these devices.

In an embodiment of the present application, the first memory 16 is used to store instructions and data.

Further, in the embodiment of the present application, the first processor 15 is configured to establish a color database, and generate an effect database corresponding to the color database; acquiring spectral response parameters corresponding to a shooting device of a terminal; generating a corresponding relation between a scene and parameters based on the spectral response parameters, the color database and the effect database; and transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters.

In practical applications, the first Memory 16 may be a volatile Memory (RAM), such as a Random-Access Memory (RAM); or a nonvolatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (HDD) or a Solid State Drive (SSD); or a combination of memories of the above kind and providing instructions and data to the first processor 15.

The color management device establishes a color database and generates an effect database corresponding to the color database; acquiring spectral response parameters corresponding to a shooting device of a terminal; generating a corresponding relation between the scene and the parameters based on the spectral response parameters, the color database and the effect database; and transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters. Therefore, in the application, the color management device can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then parameters for color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management device. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

Based on the foregoing embodiments, in another embodiment of the present application, fig. 9 is a schematic diagram of a composition structure of a terminal according to an embodiment of the present application, and as shown in fig. 9, a terminal 2 according to an embodiment of the present application may include: a receiving unit 21, a second acquisition unit 22.

The receiving unit 21 is configured to receive a correspondence between a scene and a parameter transmitted by the color management device;

the second obtaining unit 22 is configured to perform color management on the current image according to the correspondence between the scene and the parameter, and obtain a color-managed image.

Further, in the embodiment of the present application, the second obtaining unit 22 is specifically configured to perform scene classification on the current image to obtain second scene information corresponding to the current image; obtaining color management parameters according to the second scene information and the corresponding relation between the scene and the parameters; and obtaining the color-managed image corresponding to the current image based on the color management parameters.

Further, in an embodiment of the present application, the color management parameters include at least one of CCM parameters, WB parameters, color engineering parameters, and color classification parameters.

Further, in the embodiment of the present application, the receiving unit 21 is further configured to send a connection request to the color management device before receiving the corresponding relationship between the scene and the parameter transmitted by the color management device; and receiving a connection response sent by the color management equipment, and establishing connection with the color management equipment according to the connection response.

Fig. 10 is a schematic diagram of a second component structure of the terminal according to the embodiment of the present application, as shown in fig. 10, the terminal 2 according to the embodiment of the present application may further include a second processor 23, a second memory 24 storing executable instructions of the second processor 23, and further, the terminal 2 may further include a second communication interface 25, and a second bus 26 for connecting the second processor 23, the second memory 24, and the second communication interface 25.

In an embodiment of the present application, the second processor 23 may be at least one of an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device, DSPD), a programmable logic device (ProgRAMmable Logic Device, PLD), a field programmable gate array (Field ProgRAMmable Gate Array, FPGA), a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, and a microprocessor. It will be appreciated that the electronic device for implementing the above-mentioned processor function may be other for different apparatuses, and embodiments of the present application are not specifically limited. The color management device 1 may further comprise a second memory 24, which second memory 24 may be connected to the second processor 23, wherein the second memory 24 is adapted to store executable program code comprising computer operating instructions, which second memory 24 may comprise a high speed RAM memory, and may further comprise a non-volatile memory, e.g. at least two disk memories.

In the embodiment of the present application, the second bus 26 is used to connect the second communication interface 25, the second processor 23, and the second memory 24 and the mutual communication between these devices.

In an embodiment of the present application, the second memory 24 is used for storing instructions and data.

Further, in the embodiment of the present application, the second processor 23 is configured to receive a correspondence between a scene and a parameter transmitted by the color management device; and carrying out color management on the current image according to the corresponding relation between the scene and the parameters to obtain the image after color management.

In practical applications, the second Memory 24 may be a volatile Memory (RAM), such as a Random-Access Memory (RAM); or a nonvolatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (HDD) or a Solid State Drive (SSD); or a combination of memories of the above kind and providing instructions and data to the second processor 23.

The embodiment of the application provides a terminal, which performs color management on a current image according to a corresponding relation between a scene and parameters after receiving the corresponding relation between the scene and the parameters transmitted by color management equipment, and obtains an image after color management. Therefore, in the application, the color management device can acquire and determine the spectrum information and the target color effect of the shooting object under different scene information in advance, so that a color database and an effect database can be established, then parameters for color management under different scenes corresponding to the terminal can be generated by combining the spectrum response parameters corresponding to the shooting device of the terminal on the basis of the database and the effect database, namely, the corresponding relation between the scenes and the parameters is generated, and the terminal can directly perform color management on the current image by utilizing the corresponding relation between the scenes and the parameters transmitted by the color management device. That is, the color management device generates color management parameters corresponding to the terminal in different scenes, and the terminal can directly use the corresponding color management parameters to perform color management after determining the scene corresponding to the current image, so that when performing color management, repeated debugging of parameters in the ISP is avoided, the debugging result is not dependent on subjective feeling of staff, further, the debugging efficiency is improved, the debugging effect is improved, and the intelligence of color management is greatly enhanced.

The present embodiment provides a computer-readable storage medium having stored thereon a program which, when executed by a processor, implements the color management method as described above.

Specifically, the program instructions corresponding to one color management method in the present embodiment may be stored on a storage medium such as an optical disc, a hard disk, a usb disk, or the like, and when the program instructions corresponding to one color management method in the storage medium are read or executed by an electronic device, the method includes the following steps:

Further, the program instructions corresponding to one color management method in the present embodiment may be stored on a storage medium such as an optical disc, a hard disc, a usb disk, or the like, and when the program instructions corresponding to one color management method in the storage medium are read or executed by an electronic device, the method further includes the following steps:

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of implementations of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block and/or flow of the flowchart illustrations and/or block diagrams, and combinations of blocks and/or flow diagrams in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks and/or block diagram block or blocks.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application.

Claims

1. A color management method, wherein the color management method is applied to a color management device, the method comprising:

transmitting the corresponding relation between the scene and the parameters to the terminal so that the terminal realizes color management according to the corresponding relation between the scene and the parameters;

Wherein, the establishing a color database comprises:

receiving first scene information and spectrum information of a shooting object; wherein one first scene information corresponds to one spectrum information;

determining the corresponding relation among the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information;

establishing the color database according to the corresponding relation among the object, the scene and the spectrum;

the generating the effect database corresponding to the color database comprises the following steps:

determining color effect information corresponding to the photographic subject and the first scene information; wherein one first scene information corresponds to one color effect information;

determining the corresponding relation among the object, the scene and the effect according to the shooting object, the first scene information and the color effect information;

and establishing the effect database according to the corresponding relation among the object, the scene and the effect.

2. The method of claim 1, wherein generating the effects database corresponding to the color database comprises:

determining gray type information corresponding to the photographing object and the first scene information; wherein one first scene information corresponds to one gray type information;

Determining the corresponding relation among the object, the scene and the gray scale according to the shooting object, the first scene information and the gray scale type information;

and establishing the effect database according to the corresponding relation among the object, the scene and the gray scale.

3. The method of claim 1, wherein receiving the first scene information and the spectral information of the subject comprises:

receiving the spectrum information acquired by the spectroilluminometer;

and acquiring the first scene information corresponding to the spectrum information through an input operation.

4. The method according to claim 1, wherein before the obtaining the spectral response parameters corresponding to the photographing device of the terminal, the method further comprises:

receiving a connection request of a terminal;

and responding to the connection request, sending a connection response to the terminal, and establishing connection with the terminal according to the connection response.

5. The method of claim 1, wherein the obtaining the spectral response parameters corresponding to the photographing device of the terminal includes:

and acquiring the spectral response parameters detected by the detection equipment.

6. The method according to any one of claims 1 or 2, wherein generating a correspondence of a scene to a parameter based on the spectral response parameter, the color database, and the effects database comprises:

Determining a prediction output corresponding to the spectrum information based on the spectrum response parameter;

and generating the corresponding relation between the scene and the parameters according to the prediction output, the color database and the effect database.

7. The method of claim 6, wherein generating the correspondence of the scene to the parameter based on the prediction output, the color database, and the effects database comprises:

generating a color correction matrix CCM parameter according to the prediction output, the color database and the effect database;

and establishing the corresponding relation between the scene and the parameters according to the CCM parameters.

8. The method of claim 6, wherein generating the correspondence of the scene to the parameter based on the prediction output, the color database, and the effects database comprises:

generating a white balance WB parameter according to the prediction output, the color database and the effect database;

and establishing a corresponding relation between the scene and the parameter according to the WB parameter.

9. The method of claim 6, wherein generating the correspondence of the scene to the parameter based on the prediction output, the color database, and the effects database comprises:

Generating color engineering parameters and/or color classification parameters according to the prediction output, the color database and the effect database;

and establishing the corresponding relation between the scene and the parameters according to the color engineering parameters and/or the color classification parameters.

10. A color management method, wherein the color management method is applied to a terminal, the method comprising:

receiving the corresponding relation between the scene and the parameters transmitted by the color management equipment; the corresponding relation is generated by the color management equipment according to the established color database, the generated effect database corresponding to the color database and the acquired spectral response parameters corresponding to the shooting device of the terminal equipment; the color database is used for receiving first scene information and spectrum information of a shooting object by color management equipment; wherein one first scene information corresponds to one spectrum information; determining the corresponding relation among the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information; the method comprises the steps of establishing corresponding relations among the objects, the scenes and the spectrums; the effect database corresponding to the color database is used for determining color effect information corresponding to the shooting object and the first scene information by the color management equipment; wherein one first scene information corresponds to one color effect information; determining the corresponding relation among the object, the scene and the effect according to the shooting object, the first scene information and the color effect information; the method comprises the steps of establishing corresponding relations among the objects, the scenes and the effects;

Performing color management on the current image according to the corresponding relation between the scene and the parameters to obtain a color-managed image;

the color management of the current image according to the corresponding relation between the scene and the parameters is performed to obtain a color-managed image, which comprises the following steps:

performing scene classification on the current image to obtain second scene information corresponding to the current image;

obtaining color management parameters according to the second scene information and the corresponding relation between the scene and the parameters;

and obtaining the color-managed image corresponding to the current image based on the color management parameters.

11. The method of claim 10, wherein the color management parameters include at least one of CCM parameters, WB parameters, color engineering parameters, and color classification parameters.

12. The method according to any one of claims 10 to 11, wherein prior to receiving the correspondence between the scene and the parameter transmitted by the color management device, the method further comprises:

sending a connection request to the color management device;

and receiving a connection response sent by the color management equipment, and establishing connection with the color management equipment according to the connection response.

13. A color management device, said color management device comprising: the establishing unit, the generating unit, the first obtaining unit, the transmitting unit,

the building unit is used for building a color database;

the transmission unit is used for transmitting the corresponding relation between the scene and the parameter to the terminal so that the terminal can realize color management according to the corresponding relation between the scene and the parameter;

the building unit is specifically configured to receive first scene information and spectrum information of a shooting object; wherein one first scene information corresponds to one spectrum information; determining the corresponding relation among the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information; establishing the color database according to the corresponding relation among the object, the scene and the spectrum;

The generating unit is specifically configured to determine color effect information corresponding to the shooting object and the first scene information; wherein one first scene information corresponds to one color effect information; determining the corresponding relation among the object, the scene and the effect according to the shooting object, the first scene information and the color effect information; and establishing the effect database according to the corresponding relation among the object, the scene and the effect.

14. The color management device of claim 13, wherein said color management device comprises,

the generating unit is further specifically configured to determine gray type information corresponding to the shooting object and the first scene information; wherein one first scene information corresponds to one gray type information; determining the corresponding relation among the object, the scene and the gray scale according to the shooting object, the first scene information and the gray scale type information; and establishing the effect database according to the corresponding relation among the object, the scene and the gray scale.

15. The color management device of any one of claims 13 or 14, wherein,

the generating unit is further specifically configured to determine a prediction output corresponding to the spectrum information based on the spectrum response parameter; and generating the corresponding relation between the scene and the parameters according to the prediction output, the color database and the effect database.

16. A terminal, the terminal comprising: a receiving unit and a second acquisition unit,

the receiving unit is used for receiving the corresponding relation between the scene and the parameter transmitted by the color management equipment; the corresponding relation is generated by the color management equipment according to the established color database, the generated effect database corresponding to the color database and the acquired spectral response parameters corresponding to the shooting device of the terminal equipment; the color database is used for receiving first scene information and spectrum information of a shooting object by color management equipment; wherein one first scene information corresponds to one spectrum information; determining the corresponding relation among the object, the scene and the spectrum according to the shooting object, the first scene information and the spectrum information; the method comprises the steps of establishing corresponding relations among the objects, the scenes and the spectrums; the effect database corresponding to the color database is used for determining color effect information corresponding to the shooting object and the first scene information by the color management equipment; wherein one first scene information corresponds to one color effect information; determining the corresponding relation among the object, the scene and the effect according to the shooting object, the first scene information and the color effect information; the method comprises the steps of establishing corresponding relations among the objects, the scenes and the effects;

The second obtaining unit is used for carrying out color management on the current image according to the corresponding relation between the scene and the parameters to obtain a color-managed image;

the second obtaining unit is specifically configured to perform scene classification on the current image to obtain second scene information corresponding to the current image; obtaining color management parameters according to the second scene information and the corresponding relation between the scene and the parameters; and obtaining the color-managed image corresponding to the current image based on the color management parameters.

17. The terminal of claim 16, wherein the color management parameters include at least one of CCM parameters, WB parameters, color engineering parameters, and color classification parameters.

18. A color management device, said color management device comprising: a first processor, a first memory storing instructions executable by the first processor, which when executed by the first processor, implement the method of any of claims 1-9.

19. A terminal, the terminal comprising: a second processor, a second memory storing instructions executable by the second processor, which when executed by the second processor, implement the method of any of claims 10-12.

20. A computer readable storage medium having stored thereon a program for use in a color management device and a terminal, wherein the program, when executed by a processor, implements the method of any of claims 1-12.