| Author | Thread |
|
|
01/12/2006 05:55:48 PM · #1 |
A curve to the left or right gives you an indication of under/over exposure. But, what does a narrow spike off the top of the screen tell you? While I'm on the subject how about a really flat low curve?
Message edited by author 2006-01-12 17:59:02. |
|
|
|
01/12/2006 06:43:03 PM · #2 |
A narrow spike off the top of the screen tells you that you have a LOT of pixels that are exactly the same luminosity. If that spike is at the far right or left ends, it indicates that you've clipped (lost data) in either the highlights (right end) or the shadows (left end). If the spike is within the histogram, it means that there is severe posterization, with lots of pixels of one color. That's normally a result of excessive, repeated changes to curves or levels.
A low, flat histogram just means that there is a relativley uniform distrubution of tones from dark to light, with no one range of tones predominating.
|
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 09/10/2025 03:07:44 PM EDT.
