Welcome to XDA

Search to go directly to your device's forum

Register an account

Unlock full posting privileges

Ask a question

No registration required
Post Reply

Just suspected about HDR mode

OP Jatiyanon

12th January 2014, 01:17 PM   |  #1  
OP Junior Member
Thanks Meter: 0
 
13 posts
Join Date:Joined: Jan 2014
I just suspected, HDR mode in camera app that it is a new technology in the hardware or just to take pictures and then adjust the picture brightness to brighten it up which others app it can be done.
12th January 2014, 01:22 PM   |  #2  
jbdan's Avatar
Senior Member
Atlanta
Thanks Meter: 636
 
2,608 posts
Join Date:Joined: Aug 2010
More
It actually takes 3 quick pictures: one is properly exposed (well according to the software), one is over exposed, and one is underexposed. The 3 images are blended together to make one with more dynamic range than just a single photo from this camera can provide.

Nexus5
The Following 3 Users Say Thank You to jbdan For This Useful Post: [ View ]
12th January 2014, 09:29 PM   |  #3  
Senior Member
Flag Toronto
Thanks Meter: 373
 
1,522 posts
Join Date:Joined: Nov 2013
More
Quote:
Originally Posted by jbdan

It actually takes 3 quick pictures: one is properly exposed (well according to the software), one is over exposed, and one is underexposed. The 3 images are blended together to make one with more dynamic range than just a single photo from this camera can provide.

Nexus5

That is what a normal HDR mode is supposed to do. But then Google's HDR+ in the Nexus 5 isn't a normal HDR mode.
12th January 2014, 09:54 PM   |  #4  
GldRush98's Avatar
Senior Member
Flag Taylorville, IL.
Thanks Meter: 279
 
2,229 posts
Join Date:Joined: Jun 2006
More
Quote:
Originally Posted by bblzd

That is what a normal HDR mode is supposed to do. But then Google's HDR+ in the Nexus 5 isn't a normal HDR mode.

It is simulated HDR. True HDR shots are taken by bracketing the exposure (shutter speed) of an SLR camera (part time photographer here). A cheap little image sensor in a phone can't do this, so it simulates over exposure and under exposure by taking a longer or faster shot from the sensor. Then the camera software automatically combines the images. In a true HDR photo, you need some decent software to merge the bracketed images together, and this usually takes time to tweak everything by hand to make it not looks like ass (see /r/****tyhdr for plenty of examples on how NOT to do this).
Anything claiming to be HDR that is not taken from proper bracketing on an SLR camera is basically simulated HDR.
The Following 3 Users Say Thank You to GldRush98 For This Useful Post: [ View ]
13th January 2014, 05:23 AM   |  #5  
jbdan's Avatar
Senior Member
Atlanta
Thanks Meter: 636
 
2,608 posts
Join Date:Joined: Aug 2010
More
Quote:
Originally Posted by GldRush98

It is simulated HDR. True HDR shots are taken by bracketing the exposure (shutter speed) of an SLR camera (part time photographer here). A cheap little image sensor in a phone can't do this, so it simulates over exposure and under exposure by taking a longer or faster shot from the sensor. Then the camera software automatically combines the images. In a true HDR photo, you need some decent software to merge the bracketed images together, and this usually takes time to tweak everything by hand to make it not looks like ass (see /r/****tyhdr for plenty of examples on how NOT to do this).
Anything claiming to be HDR that is not taken from proper bracketing on an SLR camera is basically simulated HDR.

Well said. I gave the "layman version"

(photography enthusiast here too)

Nexus5
Post Reply Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes