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Photo Acceptance - Help With Contrast And Overexposed Rejection  
User currently offlineMnazarinia From Australia, joined Mar 2005, 122 posts, RR: 4
Posted (5 years 6 months 7 hours ago) and read 5527 times:
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Hi all,

I just got this one rejected for being overexposed and contrast. I guess this was my third trail ans yet got rejected for the same reason. Can I ask someone to help me what I need to do to fix the problem please?

http://www.airliners.net/procphotos/..._z1235389379.6248img_4389_ver1.jpg


Thanks,
Mehdi.

20 replies: All unread, jump to last
 
User currently offlineChukcha From Australia, joined Mar 2006, 1980 posts, RR: 7
Reply 1, posted (5 years 6 months 7 hours ago) and read 5525 times:
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Mehdi, the link doesn't seem to work - shows "Default Image".

User currently offlineMnazarinia From Australia, joined Mar 2005, 122 posts, RR: 4
Reply 2, posted (5 years 6 months 6 hours ago) and read 5510 times:
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Oh sorry,

Try this link please:

http://www.airliners.net/addphotos/r..._z1235389379.6248img_4389_ver1.jpg


User currently offlineChukcha From Australia, joined Mar 2006, 1980 posts, RR: 7
Reply 3, posted (5 years 6 months 6 hours ago) and read 5504 times:
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I don't see where it is overexposed, but the contrast is definitely low. The red on the tail is a bit washed out, no pure whites or black. The histogram shows that clearly at the both ends. Levels adjustment might help.

User currently offlineAussie18 From Australia, joined Jun 2005, 1745 posts, RR: 9
Reply 4, posted (5 years 6 months 6 hours ago) and read 5495 times:
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Id give the contrast a boost on it,exposure looks okay to me.

User currently offlineChukcha From Australia, joined Mar 2006, 1980 posts, RR: 7
Reply 5, posted (5 years 6 months 5 hours ago) and read 5494 times:
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It is actually very easy to check whether the shot is overexposed, using the Shadow/Highlight function. Just move the Shadow slider to zero, and the Highlight slider over to 100. If there are overexposed areas, they will remain unchanged white. But even the brightest areas with any data in them will go dark.

User currently offlineOly720man From United Kingdom, joined May 2004, 6698 posts, RR: 11
Reply 6, posted (5 years 6 months 5 hours ago) and read 5488 times:

Setting the black and white point gives this. Seems you have a strong colour cast, or was the weather like that on the day?


http://i4.photobucket.com/albums/y120/oly720man/vh-ogb.jpg



wheat and dairy can screw up your brain
User currently offlineMnazarinia From Australia, joined Mar 2005, 122 posts, RR: 4
Reply 7, posted (5 years 6 months 5 hours ago) and read 5487 times:
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Quoting Oly720man (Reply 6):
Setting the black and white point gives this. Seems you have a strong colour cast, or was the weather like that on the day?

No the weather was like that. It was all smoky due to the recent bush fire!!
I will give it another go, thanks all.
Mehdi.


User currently offlineCodeshare From Poland, joined Sep 2002, 1854 posts, RR: 1
Reply 8, posted (5 years 5 months 4 weeks 1 day 23 hours ago) and read 5443 times:

I 've had a few contrasts recenlty myself actually.

Contrast is a bit too low. The whites seem gray. You can also try moving the middle pointer (or what's it called) in the Levels to have a darker feel. At the same time it should fix the exposure. Other than that great photo !

Ks/codeshare



How much A is there is Airliners Net ? 0 or nothing ?
User currently offlineTimdeGroot From Netherlands, joined Apr 2002, 3674 posts, RR: 64
Reply 9, posted (5 years 5 months 4 weeks 1 day 23 hours ago) and read 5432 times:
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The vast majority of contrast rejections are for contrast being too low.

I think this is because people tend to leave contrast as it is and not work the levels which is really necessary.

Contrast rejections for high contrast dont happen as often

Tim



Alderman Exit
User currently offlineMnazarinia From Australia, joined Mar 2005, 122 posts, RR: 4
Reply 10, posted (5 years 5 months 4 weeks 1 day 18 hours ago) and read 5383 times:
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Thanks all.

Tim, I really touched the levels and even curves. I guess the problem is with my original image. That day the sky was so smoky due to our recent bush fire and I guess because of the white body the contrast doesn't show as white as it should be.

I have attached the original untouched but just reduced size photo here as well:
Big version: Width: 1024 Height: 683 File size: 288kb


User currently offlineTimdeGroot From Netherlands, joined Apr 2002, 3674 posts, RR: 64
Reply 11, posted (5 years 5 months 4 weeks 1 day 18 hours ago) and read 5382 times:
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yes hazy weather can definitely worsen the problem, those shots can often need a bigger kick

Tim



Alderman Exit
User currently offlineMnazarinia From Australia, joined Mar 2005, 122 posts, RR: 4
Reply 12, posted (5 years 5 months 4 weeks 1 day 17 hours ago) and read 5364 times:
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Thanks Tim. I will try again and will post it here soon before uploading it.
Cheers, Mehdi.


User currently offlinePtrjong From Netherlands, joined Mar 2005, 3928 posts, RR: 18
Reply 13, posted (5 years 5 months 4 weeks 1 day 17 hours ago) and read 5355 times:



Quoting TimdeGroot (Reply 11):
yes hazy weather can definitely worsen the problem, those shots can often need a bigger kick

I know that it's often frowned upon, but Autocolor in PS will usually give a kick in the right direction. It will often exaggerate and even blow out highlights, but you can reduce the effects with the Fade function.

Peter Smile



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlineChukcha From Australia, joined Mar 2006, 1980 posts, RR: 7
Reply 14, posted (5 years 5 months 4 weeks 1 day 16 hours ago) and read 5351 times:
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Quoting Mnazarinia (Reply 10):
I really touched the levels and even curves.

If you have a look at the histogram, you will see that on the both right and left hand side there is a flat area meaning no pixels for higher intensity whites and blacks. That accounts for the low contrast, and that's what every picture levels should really be checked for. If you move the sliders just past the flat areas, the image will already look better. That of course won't guarantee a perfect result, some further contrast adjustment might be needed. Then, as mentioned above, you could adjust brightness with the middle slider.

[Edited 2009-02-25 15:37:21]

User currently offlineChukcha From Australia, joined Mar 2006, 1980 posts, RR: 7
Reply 15, posted (5 years 5 months 4 weeks 1 day 16 hours ago) and read 5341 times:
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Quoting Ptrjong (Reply 13):
Autocolor in PS will usually give a kick in the right direction.

Sometimes it will, and sometimes it will not, it is a bit of a 'hit' and 'miss'. But when it does, the effect may be a bit too much. In that case it pays to go to 'Edit' - 'Fade" and to play with the Auto Color intensity.


User currently offlinePtrjong From Netherlands, joined Mar 2005, 3928 posts, RR: 18
Reply 16, posted (5 years 5 months 4 weeks 1 day 16 hours ago) and read 5331 times:



Quoting Chukcha (Reply 15):
But when it does, the effect may be a bit too much. In that case it pays to go to 'Edit' - 'Fade" and to play with the Auto Color intensity.

Didn't I say that?  Wink

Anyway it doesn't replace looking at the levels and curve, I just often use this as an easy step in the right direction.

Cheers

Peter Smile



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlineChukcha From Australia, joined Mar 2006, 1980 posts, RR: 7
Reply 17, posted (5 years 5 months 4 weeks 1 day 15 hours ago) and read 5321 times:
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Sorry, Peter, I'm doing lots of things here on the run, trying to multitask, which I definitely have the wrong gender for  Smile . Only caught the first half of your post  sorry  . Anyway, some profound insights are worth repeating, aren't they :D ?

[Edited 2009-02-25 17:04:51]

User currently offlineDendrobatid From United Kingdom, joined Nov 2004, 1667 posts, RR: 62
Reply 18, posted (5 years 5 months 4 weeks 1 day 8 hours ago) and read 5295 times:
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This trick works for setting the black point.
Open levels (Ctrl+L) I have not checked but I would expect a gap on the left side to be indicated by the weak black.
Press and hold down Alt as you move the left slider in. The image will go blank, white. Keep moving the slider in until the merest trace of anything shows and that will set the black point.
The same happens at the white point though highlight spots almost always immediately show when you press Alt and move the right slider.
I found that simply looking at the histogram gave virtually identical results to this method, but that comes with a lot of experience, this way is a shortcut to it - dead simple
Mick Bajcar


User currently offlinePtrjong From Netherlands, joined Mar 2005, 3928 posts, RR: 18
Reply 19, posted (5 years 5 months 4 weeks 1 day 5 hours ago) and read 5279 times:



Quoting Chukcha (Reply 17):

No problem at all Andrei, I think it was maybe even you who taught me the Fade tool.

Peter Smile



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlineMnazarinia From Australia, joined Mar 2005, 122 posts, RR: 4
Reply 20, posted (5 years 5 months 3 weeks 4 days 9 hours ago) and read 5181 times:
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PHOTO SCREENER

Thanks all. It is now accepted!

Click Here to view the photo



[Edited 2009-03-01 22:44:31]

[Edited 2009-03-01 22:46:02]

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