Traditional Culture Encyclopedia - Photography and portraiture - What is the function of "HDR" in the camera of mobile phone? How to use it correctly?
What is the function of "HDR" in the camera of mobile phone? How to use it correctly?
▲HDR restores the original color of the sky.
For example, when shooting the sunset, because the light ratio is very large, it is likely to exceed the tolerance range of the camera, and the sky will easily become pale and the color of the sky cannot be photographed. After using HDR synthesis, the exposure will be automatically adjusted to restore the original color of the sky. When the scene is backlit, the foreground usually looks dark. At this time, we can use HDR function to shoot and brighten the foreground.
▲HDR photos have details in both bright and dark parts, which brighten the foreground.
In addition, buildings can also use HDR to enhance the texture and texture of the building surface.
▲HDR enhances the texture and texture of the building surface.
HDR used to be a tall skill, but now it is a "civilian" skill. Many mobile phones have a one-button HDR mode.
HDR is not suitable for all scenes. Please use HDR with caution in the following scenarios.
1. Shooting a moving object: Because the image before and after composition has changed, there will be ghosting or ghosting after composition;
▲ Ghost effect
2. High contrast scenes: Some photos will look better because of the sharp contrast between light and dark parts. Turning on HDR will reduce the contrast and make photos lose their charm, such as silhouette shooting.
▲ Silhouette Due to the large illumination between the foreground and background, the bright and dark parts are in sharp contrast.
3. Portrait: Due to the outstanding performance of HDR on details and texture, various details on people's faces, such as wrinkles and acne, will be subtle, so try not to appear in the picture, which will be ugly! Of course, if you intend to highlight the vicissitudes of the characters' faces, that is another matter.
▲HDR highlights the wrinkles and acne on the face of the characters, showing the vicissitudes of the characters.
Precautions for use
1. Because the HDR mode of the mobile phone camera will automatically select different exposure points as reference, in some scenes with excessive light ratio, you can "manually" select the highlights in the picture to make highlights. Below is the sun at sunset to ensure that the details of the picture are fully reflected.
▲ artificially select the highlight part for metering to ensure that the details of the picture are fully reflected.
2. When shooting with HDR, the exposure time is long, so try to ensure the stability of the picture.
3. Automatically merged HDR photos are not necessarily "bad", but may not meet our shooting needs. You need to adjust the tone and light and shade later.
▲ Manually adjusting HDR parameters and tone repair can help us hide unnecessary details and restore the layering and realism of photos.
Finally, there is HDR in later software, such as Snapseed and rough retouching. What I want to say is that no matter in the early or late stage, shooting HDR requires constant practice to make progress, so we should make good use of it instead of "abusing it".
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