CN110737440B

CN110737440B - Programming method based on DaVinci nostalgic color series digital color correction plug-in

Info

Publication number: CN110737440B
Application number: CN201911003712.8A
Authority: CN
Inventors: 齐师鳐; 葛春晓; 邹克瑾
Original assignee: Jilin Teachers Institute of Engineering and Technology
Current assignee: Jilin Teachers Institute of Engineering and Technology
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2023-03-14
Anticipated expiration: 2039-10-22
Also published as: CN110737440A

Abstract

The invention discloses a programming method based on a digital color correction plug-in of the nostalgic color system in DaVinci, which comprises the steps of improving a gamma value and a gain value of a picture, adding an LUT (look up Table) for materials, adjusting color temperature and contrast, adjusting the vintage feeling of the picture by adopting a warm color system, manually deducting a main object in the picture by using a painting brush tool, adding contrast color for a singly deducted picture main body, adjusting a curves curve and the like. The method is based on a DaVinci research Advanced Panel digital color correction system platform, and the digital color correction command is compiled into a digital color correction command database of a functional program which is not possessed by the original platform according to an application program interface of the original software system. By programming the color style commonly used in the digital color correction process, the aim of color attachment by one key is fulfilled when the nostalgic color system style is created for the material in the color correction process in future, so that the working flow is standardized and the working efficiency is improved.

Description

Programming method based on DaVinci nostalgic color series digital color correction plug-in

Technical Field

The invention relates to the technical field of computers, in particular to a programming method based on a DaVinci nostalgic color system digital color correction plug-in.

Background

The DaVinci research Advanced Panel digital color correction system platform is a nonlinear editing system and a professional-level hardware color matching platform. However, in the color correction process, when a nostalgic color system style is created for materials, the steps are multiple, the working procedures of each person are greatly different, the operation is not standard, and the working efficiency is influenced.

Disclosure of Invention

The invention aims to provide a programming method based on a DaVinci nostalgic color system digital color correction plug-in, which can achieve the purpose of color attachment by one key when creating nostalgic color system styles for materials in the color correction process in future by programming the color styles commonly used in the digital color correction process, thereby standardizing the working process and improving the working efficiency.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a programming method based on DaVinci nostalgic color system digital color correction plug-in comprises the following steps:

s1, ensuring that a material is in a log gray film mode, increasing a gamma value of a picture by 0.07, and increasing a gain value by 0.9;

s2, adding LUT (look up table) for the material, wherein the log of ari is converted to rec.709;

s3, adjusting color temperature and contrast, and adjusting vintage feeling of a picture by adopting a warm color system, wherein the Gain value is 1.2, the offset value is 23.0, the contrast value is 1.420, the piovt value is 0.521, and the temp321;

s4, manually buckling a main object in the picture by using a painting brush tool to form a selected area mask;

s5, adding contrast colors to the independently deducted picture main body, and adding an orange Y value of 0.01, an R value of 0.02, a G value of-0.01 and a B value of-0.03 into gamma; indigo is added into the gain, and the Y value is 1.03, the R value is 0.95, the G value is 0.97 and the B value is 1.05;

s6, adjusting a curves, wherein the high value is 60, and the R value is 105;

s7, increasing the overall contrast of the picture, wherein the contrast value is 1.120;

s8, creating parallel nodes with the nodes just deducted out of the main body, reducing the brightness gain value of the background by 0.9, and improving the sat value 60 of which the background saturation is matched with the saturation and brightness of the main body of the picture;

s9, creating a serial node, and adjusting the intermediate voltage darkness to be 1ift to be 0.04;

and S10, finding out nodes for deducting the picture main body, and performing a small amount of grinding to obtain a value of 5.

Furthermore, after the LUT is added in step S2, if some of the materials are black cut or white cut, the video curve can be stretched out manually.

Further, in order to make the main body more three-dimensional, the contrast of the picture main body is increased after the contrast color is added to the picture main body which is separately deducted in the step S5.

Further, after the modification is correct in step S10, the right key of the current picture is saved as galary and saved in the local gallery.

Further, the final color correction static frame saved in the local gallery is moved to the grand, and the nostalgic color family plug-in is named.

Compared with the prior art, the invention has the following technical effects:

the invention is based on a programming method of a DaVinci research Advanced Panel digital color correction plug-in, and based on a DaVinci research Advanced Panel digital color correction system platform, the digital color correction command is compiled into a digital color correction command database of a functional program which is not provided by the original platform according to an application program interface of the original software system. By programming the color style commonly used in the digital color correction process, the aim of color attachment by one key is fulfilled when the nostalgic color system style is created for the material in the color correction process in future, so that the working flow is standardized and the working efficiency is improved.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the following embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The preparation steps of the method are as follows:

1. ensuring the material to be in a log gray film mode, increasing the gamma value of the picture by 0.07 and increasing the gamma value by 0.9.

2. Add LUT, ari log to rec.709 for material.

3. After the LUT is added, if the partial material has black cut or white cut, the video wave curve can be stretched out manually.

4. The color temperature and the contrast are adjusted, so that the picture color is more vivid. The warm color is usually used to adjust the vintage of the picture. Gain value 1.2, offset value 23.0, const value 1.420, piovt value 0.521, temp321.

5. And manually buckling the main object in the picture by using a painting brush tool to form the selected area mask.

6. Contrast color is added to the singly deducted picture main body, and orange Y value of 0.01, R value of 0.02, G value of-0.01 and B value of-0.03 are added to gamma. Indigo is added in the gain, and the Y value is 1.03, the R value is 0.95, the G value is 0.97 and the B value is 1.05. After the contrast color is added, the picture main body is more three-dimensional, and the whole picture is more vivid.

7. The contrast of the picture main body just buckled is increased, so that the main body is more stereoscopic.

8. The curves were adjusted for high value 60, R value 105.

9. The contrast of the whole picture is increased, and the contrast value is 1.120.

10. And parallel nodes are created with the nodes just deducted out of the main object, the brightness gain value of the background is reduced by 0.9, and the sat value of the background saturation matched with the saturation and brightness of the main object of the picture is improved by 60.

11. And (3) creating a serial node, and dimming the intermediate voltage by 1ift to a value of-0.04.

12. Find out the node of the main body of the picture, carry on a small amount of buffing to finish the value 5.

13. And after the correction is correct, saving the right key of the current picture as garry and saving the garry in the local gallery.

14. And moving the final color correction static frame stored in the local gallery to the grand, and naming the nostalgic color system plug-in.

The programming method of the invention is based on the DaVinci research Advanced Panel digital color correction system platform, and the digital color correction command is compiled into the digital color correction command database of the functional program which is not provided by the original platform according to the application program interface of the original software system. By programming the common color style in the digital color correction process, the aim of color attachment by one key is fulfilled when the nostalgic color system style is created for the material in the color correction process in future, so that the working flow is standardized, and the working efficiency is improved.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention as claimed.

Claims

1. A programming method based on DaVinci nostalgic color series digital color correction plug-in is characterized by comprising the following steps:

s2, adding LUT for the material, wherein the ari log is converted to rec.709;

s3, adjusting color temperature and contrast, adjusting vintage feeling of the picture by adopting a warm color system, setting a gain value to be 1.2, an offset value to be 23.0, a contrast value to be 1.420, a piovt value to be 0.521 and a temp value to be 321;

s5, adding contrast color to the singly deducted picture main body, adding orange to gamma, setting the Y value to be 0.01, setting the R value to be 0.02, setting the G value to be-0.01, and setting the B value to be-0.03; gain adds indigo, sets the Y value to 1.03, the R value to 0.95, the G value to 0.97, and the B value to 1.05;

s6, adjusting the curves, setting the high value as 60 and the R value as 105;

s7, increasing the overall contrast of the picture, and setting the contrast value to 1.120;

s8, creating parallel nodes with the nodes just deducted out of the main body, reducing the brightness gain value of the background to 0.9, improving the saturation of the background, enabling the saturation and brightness of the background to be matched with the saturation and brightness of the main body of the picture, and setting the sat value to be 60;

s9, creating a serial node, and setting the intermediate voltage-regulating dark 1ift value to-0.04;

and S10, finding out a node for deducting the picture main body, and grinding the skin, wherein the atomization value is set to be 5.

2. The programming method according to claim 1, wherein after the LUT is added in step S2, if the partial material has black cut or white cut, the visual wave curve is manually flattened.

3. The programming method according to claim 1, wherein the contrast of the picture body is increased after the contrast color is added to the picture body deducted in step S5.

4. The programming method based on digital color correction plug-in of nostalgic color system in da vinci according to claim 1, wherein the right key of the current frame is saved as galary and saved in the local gallery after the modification in step S10 is correct.

5. The method according to claim 4, wherein the final color correction static frame stored in the local gallery is shifted to the grand to pick up the nostalgic color family plug-in.