DPChallenge: A Digital Photography Contest You are not logged in. (log in or register
 

DPChallenge Forums >> Tips, Tricks, and Q&A >> How do you get rid of those lines?
Pages:  
Showing posts 1 - 25 of 43, (reverse)
AuthorThread
09/09/2005 10:16:53 AM · #1
I have a few photos that have lines in the bg when it's not too busy. It's not a compression problem, because the lines are there also in the original. Here's one. You'll see the lines towards the lower left side and the lower right side.



Does anyone know how to get rid of those?
09/09/2005 10:19:05 AM · #2
I don't see the lines you are refering to. When I pull up your image I can clearly see the Damper Wire lines of the Trinitron monitor here at work but it's not in the image itself.
09/09/2005 10:22:10 AM · #3
I don't see any lines, either.
09/09/2005 10:29:12 AM · #4
Originally posted by K-Rob:

I don't see the lines you are refering to. When I pull up your image I can clearly see the Damper Wire lines of the Trinitron monitor here at work but it's not in the image itself.


These are what I mean, but they are in the photo. When they are not in the photo, they kind of vibrate a little, these don't. And they are also in the very large original, in the same spots.
09/09/2005 10:33:40 AM · #5
Are you talking about areas of gradual gradation, where (in this photo) there is a slightly jaggy line in the clouds in the lower corners?
09/09/2005 10:35:44 AM · #6
No lines here, neither on my PowerBook's own LCD nor the Diamondtron CRT next to it.

Great photo, BTW. Since the statue and the background share similar colors, that flame really stands out!
09/09/2005 10:36:30 AM · #7
If they are there, I'm missing them.
09/09/2005 10:38:05 AM · #8
Here's another shot where the jaggy lines (yes, legalbeagle, those are what I mean) are more obvious. I just posted it to illustrate what I mean.

09/09/2005 10:38:09 AM · #9
Chalk me up as another one who can't see any lines either (using a PowerBook).
09/09/2005 10:38:25 AM · #10
Is this a snipe hunt?

P.S. Nice image BTW.

Message edited by author 2005-09-09 10:38:54.
09/09/2005 10:38:50 AM · #11
yep... no lines. can you post a larger pic that might help us see what you're seeing better?

other than that, the pic looks good. a bit soft on focus tho however that might have been the effect you were going for. good stuff.
09/09/2005 10:40:22 AM · #12
i see the lines quite clearly in the 2nd shot, but not the statue of liberty one. not sure what to say about that, other than the gradient thing.
09/09/2005 10:40:41 AM · #13
i see the lines in the second photo, not in the first.
09/09/2005 10:43:26 AM · #14
To clarify my first post: I, too, can see the lines in the second shot, but not in the Statue of Liberty shot.
09/09/2005 10:46:35 AM · #15
Wow, they are obvious in the 2nd photo (still don't see any in the 1st). Afraid I have no idea what they could be. They seem to tilt slightly, which makes compression block-coding artifacts and sensor defects unlikely, both would be perfectly horizontal.
09/09/2005 10:57:18 AM · #16
I also see the lines in the second, but not the first, image. I suspect Muckpond and Legalbeagle are right in that the first image lines are caused by abrupt gradient changes which could be caused by the settings on the monitor used to view the image (or the quality of the monitor?).

As for the second, those horizontal lines look like background to me more than image artifact.

Message edited by author 2005-09-09 10:58:11.
09/09/2005 10:57:46 AM · #17
The background lines in the second photo look like smears left by inadequate sensor cleaning. Are the lines identical in all shots?
Your camera may have been improperly cleaned at manufacture.

Message edited by author 2005-09-09 10:59:49.
09/09/2005 11:00:53 AM · #18
They look to me like lines caused by an incomplete colour palette - what settings do you save files in and what programs do you use? From your examples, they appear to be most obvious in the greys.
09/09/2005 11:02:05 AM · #19
Louison check the color settings for you system you may have you setting set to something less than true color. To do this right click on your desktop, go to properties, select the setting tab and make sure it is set to 32 bit color.
09/09/2005 11:03:49 AM · #20
You can see the same effect exagerated in the photos on this rather amusing page.

//www.engadget.com/entry/1234000430055334/
09/09/2005 11:04:06 AM · #21
Originally posted by ElGordo:

The background lines in the second photo look like smears left by inadequate sensor cleaning. Are the lines identical in all shots?
Your camera may have been improperly cleaned at manufacture.


They are the same, since one photo is in portrait orientation and the other in landscape, and all lines appear horizontal.
09/09/2005 11:05:44 AM · #22
Originally posted by drz01:

Louison check the color settings for you system you may have you setting set to something less than true color. To do this right click on your desktop, go to properties, select the setting tab and make sure it is set to 32 bit color.


I just checked and I'm at 32 bits.
09/09/2005 11:07:14 AM · #23
Originally posted by legalbeagle:

They look to me like lines caused by an incomplete colour palette - what settings do you save files in and what programs do you use? From your examples, they appear to be most obvious in the greys.


My original is saved by simply clicking and dragging from the camera to my pc, using ACDSee 3.1. Could this be the problem?
09/09/2005 11:09:53 AM · #24
Originally posted by strangeghost:

I also see the lines in the second, but not the first, image. I suspect Muckpond and Legalbeagle are right in that the first image lines are caused by abrupt gradient changes which could be caused by the settings on the monitor used to view the image (or the quality of the monitor?).

As for the second, those horizontal lines look like background to me more than image artifact.


I don't know, you may be right about the bg. On the second image, the bg was a wall, not too far from the subject (about 1 foot away) and I was shooting very close. However, as seen from my screen, they are exactly the same kind of lines as in the 1st shot.

Now the question remains: how do you get rid of the lines once they are in the photo?
09/09/2005 11:14:39 AM · #25
I do see the lines in the second photo. What I think they are is an artifact from the sensor readout. It's similar to the notorious "Canon banding" on the 10D, which is most noticeable on higher ISO shots with smooth areas. It's caused by electrical noise issues.
I don't believe it's part of the actual image, they are slightly visible on the leaf as well, which means they are not a part of the BG. It's interesting that they show up on only part of the image. Do they always show up on just a part, the same part, different parts, or sometimes the whole image? Do they show up at certain settings, e.g. high ISO, slow shutter speed, or??
Pages:  
Current Server Time: 03/28/2024 05:53:00 PM

Please log in or register to post to the forums.


Home - Challenges - Community - League - Photos - Cameras - Lenses - Learn - Prints! - Help - Terms of Use - Privacy - Top ^
DPChallenge, and website content and design, Copyright © 2001-2024 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 03/28/2024 05:53:00 PM EDT.