The shot video is too dark, which means that the video has insufficient light and exposure. When the outside light is bad, the video will be very dark. If the external adjustment during shooting cannot be changed, then the video can only be brightened later, and the brightness and contrast of the video and the color saturation need to be adjusted.

Data expansion:

First, the video that needs brightness adjustment is imported into MP4/RM conversion experts.

Click the "Add Video to be Converted" button in the upper left corner of the main interface of the software, and select the video file whose brightness needs to be adjusted in the pop-up dialog box.

Second, choose to save as AVI format.

Enter the "Selection of Basic Conversion Parameters" dialog box, select the "AVI/MPEG4 format used on computer" to be exported, and then click "Next".

Third, freely adjust the definition and video size.

Entering the "Set Video Parameters to Convert" dialog box, we can freely adjust the definition, video size and size of the exported video by adjusting the resolution and bit rate, which is very convenient and provides better default options without setting software.

Fourth, adjust the video brightness.

Click the "Picture Style Special Effects" button at the bottom of the "Set Video Parameters to be Converted" dialog box, and check "Use Picture Style Special Effects" in the pop-up dialog box to adjust the video brightness freely.

5. Export the video with adjusted brightness.

Finally, click the "Start Conversion" button, and you can wait for a video to be generated with the best brightness you like.

(Source: Baidu Experience: How to Adjust the Brightness of Video)