What Is HDR ? When And Where To Use HDR?


Friends  apne mobile ka camera use karte samay aap jab setting  optipn select karte to aapne camra ki setting  me ek HDR option dekhe honge tab aapke man me question utha hoga ki HDR kya hota hai,  HDR ko kab aur kaha use karna hai Aur hdr use karne se kya fayda hota hai?  To aaj ham hdr ke bare me hi detail me janenge :-

What  Is HDR? 

HDR ki full form hai High Dynamic  Range.  To ab hdr ke bare me janne se pahle jane dyanamic range kya hoti hai. Camra me exposure (brightness)  ke do level hote hai :- +2.0 to -2.0 jinhe Dynamic  Range  kahte hai.Aur jab ham camera se image capture karte hai tab wah image inhi 2 level ke bich capture hoti hai.Aur normal image capture hoti hai.  Hdr mode me image Ki exposure correction karke image capture  ki jati hai. 


Working Of HDR ?

Kai bar jab ham image capture  karte hai to aisa hota hai ki image ke ek part par kisi chij ki parchai padti hai aur dusre part brightness jyada hoti hai to aise me parchai wale part ki image dim aur blach type ki hoti hai aur dusre part ki bright aise me compelete image thodi bekar si lagti hai.  Lekin jab ham hdr mode on karke image capture  karte hai tab hamare phone ka camera 3 image capture  karta hai. 

1. Normal image :-

 Isme jaise pahle image capture  ki gayi thi normally  waise hi capture karta hai. 

2. High Exposure  :-

 Isme camera exposure  (brightness)  bilkul increase  karke image capture  karta hai jisse parchai (low light) wale part ki brightness increase ho jati hai. 

3. Low Exposure  :-

Finally Camera software  ki help se teeno image ko mix karke ek final image taiyar karta hai aur aapke gallery me save kar deta hai.  Isse hame parfecr brightness  level ki image mil jati hai.Aur umage dekhne me bhi badhiya lagti hai.


When To Use HDR ?

Hdr ko aap following  coditions me use kar sakte hai :- 

1. Jab aap kisi aisi jagah par image capture  kar rahe hai jaha light ke two level hai ek part par light bilkul Jyada hai aur ek part par kam. 

2. Jab aap koi landscape part ka image capture  kar rahe ho. 

When Not To Use HDR ?

Aapko following  condution me hdr nahi use karna chahiye :-

1. Jab aap kisi moving object ki image capture kar rahe ho. Kyoki hdr mode me camera 3 image capture  karta hai jab tak cameea  3 image capture  karega tab tak object  move kar raha hoga aur jo image capture  hogi wo blur hogi. 

2. Jab aap kisi aisi jagah image capture  kare jaha light level bilkul low hai. Aise me aap hdr ka use na kare ktuki jab camera exposure  ko decrease karke image capture  jarega apki image ki brightness  bhi bejar aayegi. 



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EDUCATIONALTECHS: What Is HDR ? When And Where To Use HDR?
What Is HDR ? When And Where To Use HDR?
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