WO2016082170A1

WO2016082170A1 - Toning monitor and real-time toning method

Info

Publication number: WO2016082170A1
Application number: PCT/CN2014/092427
Authority: WO
Inventors: 王尊正
Original assignee: 深圳市尊正数字视频有限公司
Priority date: 2014-11-28
Filing date: 2014-11-28
Publication date: 2016-06-02
Also published as: CN104823217B; CN104823217A

Abstract

A toning monitor and a real-time toning method, which are used for toning an input image in real time. The toning monitor comprises: an acquisition module, used for acquiring a CSC parameter from a user operation end; a parsing module, used for parsing the acquired CSC parameter to determine whether the CSC parameter satisfies a predetermined condition, and updating the acquired CSC parameter to a CSC parameter mapping unit and performing CSC parameter mapping if the CSC parameter satisfies the predetermined condition, or discarding the CSC parameter if the CSC parameter does not satisfy the predetermined condition; and a display module, used for displaying an input image subjected to the CSC parameter mapping.

Description

Color monitor and real-time color method

Technical field

The present invention relates to image processing, and more particularly to a color grading monitor and a real-time color grading method.

Background technique

In today's digital cinema technology, from the acquisition of the image to the final screening, the image will go through different systems, such as the image taken with a digital camera, which needs to be tuned by the color grading system, and then recorded by the film recorder. On the film, it is finally projected onto the screen through the projection system. Each system has its own unique color space, which means that the same image is not the same in different systems. The task of color management is to understand the characteristics of the color space of these systems and to unify the color space of different systems. . To put it simply, it is necessary to ensure that the images monitored during the production process are consistent with the final screen image effects.

In general, the process of color management can be seen as the process of color transitioning between different color spaces. If you do not make corrections, the performance of the same picture varies greatly in different color spaces. The picture on the monitor and the film copy will be displayed on the screen very differently; different monitors and different projection environments There will be visually obvious differences. In absolute terms, there are no two color space systems in the world that are identical. The role of the color management system currently on the market is to minimize the visual difference between images on different media and display devices. The most important part is to unify the picture of the monitor in the digital coloring process with the final film copy onto the screen, making them "look" more similar, in order to provide a relative for the colorist. "Accurate" visual reference. This type of color space conversion is often done by CSC parameter mapping.

However, the existing process of coloring by adjusting the CSC parameters is very complicated, and it is usually necessary to additionally set a color box to perform color correction on the CSC parameters. In this way, the monitor includes a CSC parameter mapping module, and the color palette also includes a CSC parameter mapping module, wherein the CSC parameter mapping module in the monitor is used to implement color space mapping, and CSC parameter mapping in the color box. The module is used for toning processing. As a result, the system is bulky and real-time color grading is not possible.

Summary of the invention

In order to solve the above problems, embodiments of the present invention provide a color grading monitor and a real-time color grading method which are capable of simplifying the color grading system and capable of real-time color grading.

In one embodiment, a color adjustment monitor is provided for real-time color grading of an input image. The color adjustment monitor includes: an acquisition module, configured to acquire CSC parameters from a user operation terminal; and a parsing module, configured to parse whether the acquired CSC parameters meet predetermined conditions, and if yes, update the acquired CSC parameters to one In the CSC parameter mapping unit, the CSC parameter mapping is performed; if the predetermined condition is not met, the CSC parameter is discarded; and the display module is configured to display the input image after the CSC parameter mapping.

In another embodiment, a real-time color grading method is provided for real-time color grading of an input image. The real-time color grading method includes: acquiring a CSC parameter from a user operation terminal; analyzing whether the acquired CSC parameter meets a predetermined condition, and if so, updating the acquired CSC parameter and performing CSC parameter mapping; if the predetermined condition is not met, And then discarding the CSC parameters; and displaying the input image after the CSC parameter mapping.

With the color grading system and the real-time color grading method of the above-mentioned color grading monitor, after the user generates the CSC parameter through the user operation terminal or directly generates the CSC parameter in the color grading monitor, the CSC parameter is updated in real time to the CSC parameter mapping unit, and Real-time display. Therefore, real-time color grading can be achieved through a simple architecture.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a functional block diagram of a color grading monitor according to an embodiment of the present invention;

FIG. 2 is a flowchart of a real-time color grading method according to an embodiment of the present invention.

detailed description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all implementations. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

Please refer to FIG. 1 , which is a functional block diagram of a color grading monitor 100 according to an embodiment of the present invention. The color adjustment monitor 100 is coupled to a user operating terminal 200. The color adjustment monitor 100 has a function of coloring an input image in real time. In this embodiment, the user operation terminal 200 includes color grading software, and the color grading software may be PC (personal computer) color grading software, Mac color grading software, mobile phone (such as iphone) color grading software, and Android system color grading. Software or WP coloring software. Of course, the user operation terminal 200 is not limited thereto, and any device that can output CSC parameters can be used as the user operation terminal 200.

The user operation terminal 200 includes a CSC parameter generation module 201 and a transmission module 202. The CSC parameter generating module 201 is configured to generate CSC parameters according to a user operation. In this embodiment, the user adjusts the toning parameter in the user operation end according to his own color adjustment requirement to output the CSC parameter. The correspondence between the input RGB value and the output RGB value is described in the CSC parameter. The sending module 202 is configured to send the CSC parameter to the color grading monitor 100. In this embodiment, the sending module 202 sends the CSC parameter to the color grading monitor 100 through a communication network. It can be understood that the sending module 202 can send the CSC through at least one of an Ethernet interface network, a Wifi interface network, a Bluetooth interface network, a USB interface network, a serial interface network, a lightning interface network, and a 1394 interface network. parameter.

The color adjustment monitor 100 includes a CSC parameter mapping unit 10, a receiving module 20, a parsing module 30, a response module 40, an update module 50, and a display module 60.

The receiving module 20 is configured to receive CSC parameters sent by the user operation terminal 200. Correspondingly, the receiving module 20 receives the CSC parameter through at least one of an Ethernet interface network, a Wifi interface network, a Bluetooth interface network, a USB interface network, a serial interface network, a lightning interface network, and a 1394 interface network.

The parsing module 30 is configured to parse whether the CSC parameter meets a predetermined condition, and if yes, update the received CSC parameter to the CSC parameter mapping unit 10, and perform a new CSC parameter mapping; if the reservation is not met Condition, the CSC parameters are discarded. Specifically, the parsing module 30 may compare the data format, the data length, and/or the data check information of the received CSC parameter with a preset corresponding condition, and if the matching is performed, the parsing result is that the predetermined condition is met. If there is no match, the result of the parsing is that the predetermined condition is not met. The CSC parameter mapping unit 10 can be implemented by using an FPGA or an ASIC, and can be connected to an external storage device or an external storage device. In this reality In an embodiment, the CSC parameter mapping unit 10 is implemented using an FPGA.

The response module 40 is configured to feed back the analysis result of the parsing module 30 to the user operation end. In this embodiment, the response information fed back by the response module 40 is “received data is correct” or “received data error”. Specifically, when the parsing result is that the predetermined condition is met, the response module 40 feeds back the information that “receives the data correctly”, and when the parsing result is that the predetermined condition is not met, the response module 40 feeds back the “receive data error” information.

The update module 50 is connected between the parsing module 30 and the CSC parameter mapping unit 10. When the parsing result is that the predetermined condition is met, the parsing module 30 transmits the latest CSC parameter to the update module 50, and the update module 50 updates the CSC parameter to the CSC parameter mapping unit 10 to perform a new CSC parameter mapping. After the update is completed, the user can observe the change in the video chromaticity on the screen of the color adjustment monitor 100 in real time.

The display module 60 is configured to display an input image after the new CSC parameter mapping according to the analysis result of the parsing module 30. Specifically, the display module 60 is connected to the CSC parameter mapping unit 10. When the update module 50 updates the CSC parameters, the display module 60 acquires the data in the CSC parameter mapping unit 10 in real time, and displays the CSC in real time. The input image after the parameter mapping.

In other embodiments, the display module 60 may also be connected to the update module 50 and/or the LUT mapping unit 10, and when the parsing result is that the predetermined condition is met, the update module 50 outputs a control signal to the The display module 60 is configured to cause the display module 60 to acquire an input image after the new CSC parameter mapping from the LUT mapping unit 10 and display it.

When the color grading monitor 100 is used, the user transmits the CSC parameters to the color grading monitor 100 after the user operates the terminal 200 to generate the CSC parameters. Through the parsing and updating functions, the correct CSC parameters can be updated in real time to the CSC parameter mapping unit 10 inside the color grading monitor 100, and the real-time color grading function can be realized by a simple architecture.

Please refer to FIG. 2 , which illustrates a real-time color grading method according to an embodiment of the present invention. The real-time color grading method includes the following steps:

Step S301: Connect the user operation terminal 200. In this embodiment, the user operation terminal is connected through at least one of an Ethernet interface network, a Wifi interface network, a Bluetooth interface network, a USB interface network, a serial interface network, a lightning interface network, and a 1394 interface network. The user operating terminal 200 includes color grading software, and the color grading software may be PC color grading software, Mac color grading software, mobile phone (eg, Iphone) color software, Android system color software or WP color software. In other embodiments, the user terminal 200 may also be a color palette. In this embodiment, the user terminal 200 is connected through a USB cable. Of course, the user operation terminal 200 is not limited thereto, and any device capable of providing accurate and convenient control of human-computer interaction function can be used as the user operation terminal 200.

Step S303: Acquire CSC parameters according to user operations. In this embodiment, after the user operates the color grading software, the CSC parameter sent by the user operation terminal 200 is received at the color grading monitor end. Correspondingly, the CSC parameter can be obtained through at least one of an Ethernet interface network, a Wifi interface network, a Bluetooth interface network, a USB interface network, a serial interface network, a lightning interface network, and a 1394 interface network. In another embodiment, the CSC parameters are generated within the color grading monitor when the user operates the color palette.

Step S305: Parsing whether the CSC parameter meets a predetermined condition, if yes, performing step S307: updating the acquired CSC parameter, and performing a new CSC parameter mapping; if the predetermined condition is not met, performing step S309: discarding the CSC parameters. Specifically, when parsing, the data format, the data length, and/or the data check information of the received CSC parameter may be compared with a preset corresponding condition. If they match, the analysis result is that the predetermined condition is met, if not If the match is made, the result of the analysis is that the predetermined condition is not met.

Step S311: The analysis result is fed back to the user operation terminal for the user to confirm whether to re-adjust the CSC parameter. In this embodiment, the feedback information that is fed back is “received data correctly” or “received data error”. When the parsing result is that the predetermined condition is met, the “received data is correct” information is fed back, and when the parsing result is that the predetermined condition is not met, , feedback "receive data error" information, at this time, the user needs to readjust the CSC parameters.

Step S313: Display the input image after the new CSC parameter mapping.

It should be noted that the present invention does not limit the order of execution of the various steps.

It should be noted that, through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary hardware platform, and of course, all can be implemented by hardware. Based on such understanding, the technical solution of the present invention contributes to the background art. All or part of it may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions for causing a computer device (which may be a personal computer or a server) , or a network device, etc.) performs the methods described in various embodiments of the present invention or in certain portions of the embodiments.

The above are only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the claims of the present invention are still within the scope of the present invention.

Claims

A color tone monitor for real-time color grading an input image, wherein the color grading monitor comprises:

An obtaining module, configured to acquire CSC parameters from a user operation terminal;

a parsing module, configured to parse whether the acquired CSC parameter meets a predetermined condition, and if yes, update the acquired CSC parameter to a CSC parameter mapping unit, and perform CSC parameter mapping; if the predetermined condition is not met, discard the CSC parameters;

A display module for displaying an input image after being mapped by the CSC parameter.
The color grading monitor of claim 1 further comprising:

The response module is configured to feed back the parsing result of the parsing module to the user operation end for the user to confirm whether to re-adjust the CSC parameter.
The color grading monitor according to claim 2, wherein said parsing module is configured to compare data format, data length and/or data check information of the received CSC parameters with preset corresponding conditions If the matching is matched, the parsing result is that the predetermined condition is met, and the response module returns the response information that “receives the data correctly”. If not, the parsing result is that the predetermined condition is not met, and the response module returns “receive data”. "Error" response message.
A color grading monitor according to claim 1, further comprising an update module coupled between said parsing module and said CSC parameter mapping unit, said update module for updating said acquired CSC parameters To the CSC parameter mapping unit.
The color grading monitor according to claim 1, wherein said color grading monitor comprises an Ethernet network, a Wifi interface network, a Bluetooth interface network, a USB interface network, a serial interface network, a lightning interface network, and a 1394 interface. At least one of the networks acquires the CSC parameters.
The color grading monitor according to claim 1, wherein said user operation terminal comprises color grading software, said color grading software is PC color grading software, Mac color grading software, mobile phone color grading software, Android system tuning Color software or WP coloring software.
A real-time color grading method for real-time grading an input image, the real-time color grading method comprising:

Obtain CSC parameters from the user operation terminal;

Determining whether the acquired CSC parameter meets a predetermined condition, if yes, updating the acquired CSC parameter, and performing CSC parameter mapping; if the predetermined condition is not met, discarding the CSC parameter; and

The input image after the CSC parameter mapping is displayed.
A real-time color grading method according to claim 7, further comprising the steps of:

The analysis result is fed back to the user operation terminal for the user to confirm whether to re-adjust the CSC parameter.
The real-time color grading method according to claim 7, wherein the step of analyzing whether the received CSC parameter meets a predetermined condition comprises:

Comparing the data format, data length, and/or data check information of the received CSC parameters with preset corresponding conditions;

If they match, the result of the parsing is that the predetermined condition is met, and the response message of “received data correctly” is returned;

If it does not match, the parsing result is a response message that does not meet the predetermined condition and returns "receive data error".
The real-time color grading method according to claim 7, wherein the user operation terminal comprises color grading software, and the color grading software is PC color grading software, Mac color grading software, mobile phone color grading software, and Android system tuning. Color software or WP coloring software, the CSC parameters are obtained from the color grading software.