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Photography

[People] What Is HDR Mode, How It Woks!

2019-02-05 17:21:49
2081 18

Hey MI Fans,
You've probably seen it mentioned, but never really understood what you're seeing: HDR is a thing in your smartphone's camera, but it's coming to screens as well.
It's also being bandied about on high-end TVs as well, so it's clearly a good thing.but what does that actually mean for you and the next phone you might buy?

What Is HDR?
HDR stands for high dynamic range. You may have seen this term in your phone’s camera app, where it’s used to bring out more detail in a photo’s shadows. It also helps avoid overexposure, which turns parts of an image into blocks of white.


High dynamic range movies and TV shows work slightly differently. HDR video widens the distance between the darkest parts of the image and the brightest. This increased contrast brings out the detail in both the dark and brights of the image, making for more cinematic video.
For the best results, HDR content requires a display with a high contrast ratio and a high peak brightness. The image is always constrained by how bright and dark a display actually appears.

Why click photos using HDR mode on a mobile phone?

At present, the camera sensors featured in mobile phones are not at par with the sensors installed in a DSLR. Thus, the dynamic range of the mobile phone camera sensor is narrow/less and there are more chances of highlights getting blown out or the shadows getting darker in a scene with wide/high dynamic range.



The HDR mode on mobile phone automatically clicks three consecutive photos of the scene and gives you a single HDR image. What happens inside the camera sensor is that the camera clicks three images each at different exposure value and through the internal process, merges them into one image. These three images are clicked in such a manner that one of them is of normal exposure, one is overexposed and one underexposed.

The overexposed photo is clicked to get details from the dark area, whereas the underexposed photo is clicked to get details from the highlight area. The normal exposure photo helps in retaining details of mid-tones. This is how a single HDR image is processed.


How does HDR work?

When you take a photo with HDR enabled, the camera captures several images in quick succession with different exposure values. The smartphone camera software then combines these images into a single photo which maintains detail from the darkest and lightest regions. Before this functionality found its way to smartphone cameras, you had to capture three photos (with your camera of choice), transfer them to a PC, open them in Photoshop or something similar and use the HDR software function to compile the three images together, highlighting the best parts of each, to achieve the same effect.



Thankfully, smartphone manufacturers have adapted HDR to their devices' camera software so that, when activated, the phone does all of this work automatically. Because the software is essentially combining several images to create your final shot, HDR works best with static shots and a steady hand.

Related Thread: When & How To Use HDR Mode!

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2019-02-05 17:21:49
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Wizard Bunny

MH Imran | from Redmi Note 4

#1

Thank you very much for the details of HDR.
2019-02-05 17:29:33

Grand Master Bunny

$huvo | from Redmi 4

#2

Thanks for sharing
2019-02-05 18:35:21

Admin

mnnahid | from Mi Note 2

#3

Love this informative thread, keep it up.
2019-02-05 18:54:14

Semi Pro Bunny

Nick415122 | from Redmi 6A

#4

thanks for sharing
2019-02-05 19:44:50

Moderator

Mainul Hasan Rohan | from Redmi Note 5

#5

informative thread brother
2019-02-05 20:54:36
Mainul Hasan
Moderator, Mi Community Bangladesh

I ❤️ Mi

Grand Master Bunny

Mahmud Af Nahin | from Redmi Note 5

#6

Thanks for sharing
2019-02-06 00:53:43
An informative thread. Thanks for sharing.
2019-02-06 01:12:55
Shah Md. Sultan
Super Moderator, Mi Community Bangladesh

Read my special thread

Super moderator

rayhanh Author | from Redmi Note 4X

#8

MH Imran
Thank you very much for the details of HDR.

thanks for reading.
2019-02-06 02:12:01
Rayhan Hasan
Super Moderator, Mi Community Bangladesh.

Super moderator

rayhanh Author | from Redmi Note 4X

#9

$huvo
Thanks for sharing

thanks for reading.
2019-02-06 02:12:18
Rayhan Hasan
Super Moderator, Mi Community Bangladesh.

Super moderator

rayhanh Author | from Redmi Note 4X

#10

mnnahid
Love this informative thread, keep it up.

thank you,thank you so much dada.
2019-02-06 02:12:37
Rayhan Hasan
Super Moderator, Mi Community Bangladesh.
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