improve low-light image quality? Sharing 2 ways to improve low-light image quality
Improving low-light image quality is one of the key points in improving the video shooting performance of mobile phones. In this regard, mobile phone manufacturers have similar approaches. One is by upgrading the pixel size or changing the pixel structure, and the second is by increasing the aperture size and increasing the exposure time.
1. Upgrade the pixel size to improve low-light images
Upgrading the pixel size means lower pixels, or an increase in the image sensor area. Reducing pixels is a double-edged sword. Apple's approach is more conservative. The iPhone only maintains the lowest pixels that can shoot 4K videos, which is about 12 million pixels for still photos and about 8.3 million pixels for dynamic videos. This is good for improving 4K video shooting in low light, but the resolution will be a hindrance when shooting still photos. What many Android phones do is to increase the sensor size and change the sensor pixel structure to improve the performance of videos shot in low light.
2. Increase the amount of light entering the camera to improve low-light images
Another solution is a common solution in the imaging industry, which is to increase the amount of light entering the camera. For example, use a lower frame rate or let the video automatically reduce the frame. Complete video shooting in low light.
Shooting video in low light is a bit difficult for mobile phones with small image sensors. Without significant increase in size or improvement in performance of mobile phone sensors, it is difficult to shoot videos in low light, so shooting with mobile phones is still mainly done in a well-lit environment.
