How to adjust the white balance in the later stage of mobile photography?

First, the automatic white balance of the camera is usually used.

Open White Balance Settings (WB), find Auto White Balance, and then click OK. The so-called automatic white balance means that all the tasks of setting white, black and gray are handed over to the camera to complete. This method is very common and effective. It can be said that it can be successful in more than 90% shooting environments. We can completely trust the camera and improve the execution efficiency. In actual shooting, most of us do this.

Second, when the requirements are high, you can set it accurately by customizing the white balance.

The method is to aim the lens at the standard white cardboard in the environment you want to shoot and set the white balance setting to custom mode. First guess how many pictures are made with different color temperature data, then find the one you think is the most accurate, read the color temperature data, and define "white" according to this color temperature data. So the white balance basically meets the requirements. Similar practices can also use gray cardboard or black cardboard, which has exactly the same meaning. Remember: if you change the scene and conditions, what you just did is useless or even wrong.

This is the general method. If you encounter stage lights, it will be changeable. You might as well do it honestly and use the camera to automatically balance the white.

Third, under special circumstances, you can set the white balance you need artificially.

According to your creative design, if you want the picture to be cold or artificially warm, you can use the custom white balance method to select the color temperature data that you think is appropriate, but this method requires multiple shots and the process is complicated. Another method is to use "White Balance Offset". Next to the white balance setting, there is a project setting called "White Balance Offset", which is marked with obvious color change trend. Through the movement of the cursor position, it can be clearly and intuitively seen that when the cursor moves in different directions, the effect of "color cast" will appear. If necessary, you can take some photos of it when shooting. Caution: Be sure to return the cursor to the normal position after shooting, otherwise there will be color cast in future shooting!

Fourth, save the picture in RAW format for later adjustment and proofreading.

In this way of storing data, there is a lot of room for post-adjustment of white balance, but it is not absolutely accurate, because the so-called post-adjustment is actually determined by people.

Fifth, correct the white balance appropriately in the later period.

There is some room for adjustment, including redefining "white" and "gray" and "black" by using color scale tools, but these methods can't pass, and then very strange picture effects will appear.

When we are not satisfied with the color of the picture, it may be caused by improper exposure.

For example, if we shoot a large piece of white snow and a large piece of black elements, there will also be a result that "white" is not white and "black" is not black. It is often white and gray, and black is dead white. The root cause is the wrong exposure. You can't blame the problem of white balance, which is essentially caused by insufficient exposure of white and excessive exposure of black. The real-time exposure compensation method of "white plus black minus" should be adopted to solve this problem.