CN110737440A

CN110737440A - programming method based on DaVinci nostalgic color system digital color correction plug-in

Info

Publication number: CN110737440A
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: 2020-01-31
Anticipated expiration: 2039-10-22
Also published as: CN110737440B

Abstract

The invention discloses a programming method based on DaVinci nostalgic color system digital color correction plug-in, which comprises the steps of improving a gamma value and a gain value of a picture, adding LUT for materials, adjusting color temperature and contrast, adopting a warm color system to adjust the vintage feeling of the picture, 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 and the like.

Description

programming method based on DaVinci nostalgic color system digital color correction plug-in

Technical Field

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

Background

However, in the color correction process, when creating a nostalgic color system style for materials, steps are multiple, the working process of each person is greatly different, the operation is not standard, and the working efficiency is influenced.

Disclosure of Invention

The invention aims to provide programming methods based on DaVinci nostalgic color system digital color correction plug-in, and by programming the color style commonly used in the digital color correction process, the purpose of color attachment by keys when creating nostalgic color system style for materials in the color correction process in future is achieved, so that the working process is standardized, and the working efficiency is improved.

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

A programming method based on DaVinci nostalgic color series digital color correction plug-in, comprising the following steps:

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

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

s3, adjusting color temperature and contrast, adjusting vintage feeling of the 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 temp 321;

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

s5, adding contrast color to the single deducted picture main body, and adding orange Y value of 0.01, R value of 0.02, G value of-0.01 and B value of-0.03 to 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 the 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 object, 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 object of the picture;

s9, creating a serial node, and carrying out dark 1ift value-0.04 on the intermediate voltage regulation;

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

, after step S2 adds LUT, if some material appears black cut or white cut, the video wave curve can be flattened manually.

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

And , when the modification of the step S10 is correct, saving the right key of the current picture as galary and saving the right key of the current picture in the local gallery.

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

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

the invention is based on the programming method of the digital color correction plug-in of the nostalgic color system in DaVinci Resolve advanced Panel digital color correction system platform, follows the application program interface of the original software system, and writes the digital color correction command into the digital color correction command database of the functional program which is not provided by the original platform, and by programming the color style which is commonly used in the digital color correction process, the aim of color attaching of keys can be achieved when the nostalgic color system style is created for the material in the color correction process in future, thereby standardizing the working flow and improving the working efficiency.

Detailed Description

The present invention will be described in further detail with reference to examples so that those skilled in the art can better understand the technical solution of the present invention, and it is to be understood that the described examples are only a part of examples , but not all examples.

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, temp 321.

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. Serial nodes are created and the intermediate voltage is dimmed to a value of-0.04 at 1 ift.

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, and the common color style in the digital color correction process is programmed, so that the aim of color attaching of keys can be achieved when the old color style is created for the material in the color correction process in future, thereby standardizing the working flow and improving the working efficiency.

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, characterized by comprising the following steps:

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

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

3. The method as claimed in 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 for digital color correction plug-in based on 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 of step S10.

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.