How to unify the background color in the later period of Taobao photography on PS?

Figure 2 is dark, so take 438+0 in Figure 65 as the standard brightness, pick up the color of the background, and remember the RGB value and brightness value, that is, B:66%.

Pick up the background of Figure 2 again.

Brightness information 66-42=24

Call the brightness contrast tool in Figure 2 and set the brightness adjustment value to 24 as the reference value. Because the color selection data will be biased, the brightness correction can be adjusted within the range of plus or minus 10. Then adjust the contrast, observe that the RGB value of the monitoring point is close to the RGB value of figure 1, and compare the two figures to achieve visual consistency.

The purpose of the data is to provide an adjustment basis, avoid blindness, and finally obey the human eye.