4hw.com.cn: you don't know if you find that when you use a mobile camera, there is a function called HDR. What is HDR? What's the use of this feature? Today, let's explain in detail the magic of HDR.
HDR - full name is high dynamic range, translated into Chinese is high dynamic range image. It seems very complicated to listen to the name, but in fact, it means that after the mobile phone turns on HDR, the camera will take three consecutive pictures, corresponding to under exposure, normal exposure and over exposure, and then synthesize these three pictures, and synthesize the better parts of these three pictures, so as to form a better picture.
After finishing the principle of HDR, let's talk about why to turn on HDR to take photos. Just mentioned, HDR technology is to obtain more balanced exposure effect by taking multiple photos and software synthesis. The advantage of doing this is that HDR can keep the highlights and shadows of your photos in a clear state when there is a big difference between the light and shade in the place where you take photos, so as to create a feeling that the highlights are not exposed and the shadows are not under exposed. Make the photo bright in the light and keep more details in the dark.
Since HDR is so good, doesn't it mean that we can take pictures without brains in the future? No, HDR is also used in different scenes. If you use HDR in unsuitable scenes, the effect will be just the opposite. Let's briefly talk about the applicable and inapplicable scenarios of HDR.
1、 Applicable scenarios
1. Low light scene
Go out at night to see some interesting scenes or want to take photos together, but many places in the evening are lack of light, that is to say, low light environment. In this case, HDR can also have a good effect.
2, scenery
When we take landscape photos, we often pursue the overall view of the photos. However, the reality is that the contrast between the background and the subject often gives us a headache. At this time, you can use HDR to alleviate this embarrassment. After using HDR, you can make the overall appearance of the picture better and more harmonious without too obvious contrast.
3. Backlight portrait
Sometimes when taking photos outside, it's hard to avoid good weather and strong sunshine. At this time, I want my friend to take a picture of myself. It's really dark? So don't use HDR to eliminate the discordant effect?
2、 Not applicable scenario
1. Colorful scene
If you are shooting something or a scene that is meant to highlight its rich color features, then do not use HDR, otherwise the effect will be worse.
2. High contrast scenes
Some photos are characterized by differences and strong contrast. In this case, it is better not to use HDR, otherwise the contrast effect will be weakened.
3. Moving object
As mentioned earlier, the principle of HDR is multi photo synthesis. So if you use HDR to take pictures of moving objects, there is a great possibility that the pictures will be blurred.
After all that, I believe you have a certain understanding of mobile phone HDR mode photo taking. Make good use of HDR to make your mobile phone feel like a 'blockbuster'.