What is HDR? How does it work? Effects and versions of the image

Currently HDR system is used on almost every smartphone, camera or television bought in good prices. We have taken HDR photos with almost all of our smartphones. Or we have seen HDR quality video images on television or any video device. Now the question is, did you see any difference between a picture and an image taken in HDR? The answer must be yes, because the image taken in the HDR is to use a more dynamic range than the normal picture, which makes the image look very clean and colorful. Now this HDR photo is taken up, but most people do not know about it well enough. Let's know today what is the HDR? How does it work?


What is HDR?

At first we will know what the full meaning of HDR. The full meaning of HDR is the High Dynamic Range. Here, the dynamic Range means that the power of a camera can highlight something in the light and in the dark. The more of it the cameras will be able to highlight any more light and detail in the light and in the dark.

Effects of the Image:

Now let's come to the analysis. Suppose you are sitting in a house and outside of the house there are many sunny sky Here you can see everything in the light of the house as transparent and colorful, the same can be seen in the same bright blue cloud outside. Because people can see all the shades of dark in the dark of the eyes to be very bright. But a normal camera can not see all the sheds transparently.

If there is a normal camera in your place at the same position above, then the camera will take a specific exposure in the picture or the part of the cell will not be perfect, The two parts can not be perfected together at the same time. But the HDR has come to make this simple camera possible to do the impossible. This means that the use of HDR can highlight the bright part and the dark part of the two parts in detail and clearly.

How does it work?

Now the question is how does HDR work. It is essentially through a method of HDR process. The procedure is taken by the normal camera, only one photo is taken, but three photos are taken together in the HDR process. For example, you take a picture where you have sunlight behind you and you're sitting in front of it. Now this way if a picture is taken in a normal camera then you can see that your appearance is dark and the outer lights look more clearly. But when the same picture is taken in the HDR process, your appearance and outer light can be seen in roughly transparent and detailed form.

Because here three pictures have been taken. First of all, a picture has been taken in high light, that is why your appearance is clearly and detailed in the high light. The second is taken down in the lower light, that is, here it is clearly and detailed in the light of your back sun. Then the ending image was taken in a light like a normal camera. Now these three pictures merge into the HDR process to become a beautiful, transparent and more perfect picture.

Versions of HDR:

I knew what ever the HDR Let's now know about some versions of this. Three types of HDR versions are HDR10, Dolby Vision and HLG. Now we will know about these three things.



HDR10, Dolby Vision and HLG among the three, HDR10 was first published on August 27, 2015 and anyone free to use it without any kind of license. As a result, it is available everywhere and its popularity is high. This is a very standard HDR version. It makes our photo or video image brighter and colorful. On the other hand, Dolby Vision is a much better format than HDR, which gives better results than HDR10. This means that our pictures and video images will look much more bright and colorful. Most of the programs or movies we watch on TV are now seen on HDR10 and Dolby Vision. These two versions can give us a good quality picture.

Let's now come in HLG's words. It is full of hybrid log-gamma. It is basically a format of HDR like HDR10 and dolby vision. But it differs from the previous two versions. Because where these two versions of Games, 4K Blue-Ray or Netflix are limited to Amazon videos, HGL is used for its broadcasts, satellites and live broadcasts.

No comments

If any problem, please comment us below the comment box.

Powered by Blogger.