What does hdr video mean?

HDR video means high dynamic range images.

HDR is a video with a dynamic range larger than that of standard video, while SDR video uses the traditional gamma curve. HDR refers to high dynamic lighting rendering. HDR is a processing technology to improve the brightness and contrast of images. Compared with ordinary images, HDR can provide more dynamic range and image details, and use the LDR image with the best details corresponding to each exposure time to synthesize the final image.

HDR is a processing technology to improve the brightness and contrast of images. This technology can enrich the details of every dark part, make the dark part darker, enrich more detailed colors, make movies, pictures and game pictures show excellent effects, and make users closer to the visual experience in the real environment when watching movies and playing games. HDR technology can make the maximum brightness reach thousands of nits.

HDR application scenario

1, ray photography. Because landscape photography often faces large light ratio images, it is very suitable for HDR technology.

2. Still life photography such as flowers and plants. This theme is rich in color change and light and shadow, and at the same time it is still, which is conducive to the early shooting.

3. Sunset, sunrise and night scene are good subjects for shooting HDR. The contrast between the sky and the ground scene in this kind of theme picture is great, and the dynamic range of digital camera can not meet such a large dynamic range, so it is the most suitable application theme for HDR. Especially when shooting night scenes, HDR can well show the contrast effect between the weak light in the sky and the ground light source, which can not be recorded in general night scenes.

4. When shooting indoors, the picture includes dark scenes indoors and very bright scenes outdoors, so that both indoor and outdoor scenes can be well represented in one photo. In short, as long as the picture is relatively stable and the contrast between light and dark is large, it is all taken by HDR and synthesized by HDR post-processing.

The above contents refer to Baidu Encyclopedia -HDR.