How to prevent posterizing.
Feb 1, 2018 19:15:40 #
Hello,
I am a newbie on this forum and have learnt a lot from you wise folks. I have a friend who recently acquired a Sony A7r ii. She is keen to take bird pictures but it appears that her pictures are posterized, any help would be greatly appreciated. Thank you!
I am a newbie on this forum and have learnt a lot from you wise folks. I have a friend who recently acquired a Sony A7r ii. She is keen to take bird pictures but it appears that her pictures are posterized, any help would be greatly appreciated. Thank you!
Feb 1, 2018 19:27:45 #
Feb 1, 2018 19:33:22 #
I had to google it . Posterization or posterisation of an image entails conversion of a continuous gradation of tone to several regions of fewer tones, with abrupt changes from one tone to another. This was originally done with photographic processes to create posters.
Feb 1, 2018 19:45:20 #
I'm not sure exactly what you are referring to when you say "posterized". I know what it is but I don't see it in the picture. First thing to do would be to check "Store Original" when you upload a picture to UHH. This gives us a much bigger, more detailed picture to look at and analyze. Second, send a picture straight our of the camera; no post processing. You will get a better response this way.
Feb 1, 2018 19:49:21 #
Feb 1, 2018 20:07:45 #
Was it underexposed and she pulled up the shadows? That'll do it if there's not enough info in the shadow areas.
Feb 1, 2018 20:24:02 #
Steve Perry wrote:
Was it underexposed and she pulled up the shadows? That'll do it if there's not enough info in the shadow areas.
It kind of looks that way the bright sky behind the tree would tend to be much brighter than the bird which the camera would have rendered pretty much as a silhouette there is just not enough detail recorded. would bracketing have worked?
Feb 1, 2018 21:16:27 #
I agree, it seems like the pic was underexposed. Probably needed a higher iso than iso-400 with the f5.6 and 1/200 sec. settings. The added noise and extra colored pixels look like an attempt to increase the exposure in post processing.
Feb 1, 2018 22:21:53 #
I'll bet that somebody who was good a PP could save the image. I don't mean me, but this I think shows hope. This was done from the thumbnail.
Feb 1, 2018 22:26:53 #
blackest wrote:
It kind of looks that way the bright sky behind the tree would tend to be much brighter than the bird which the camera would have rendered pretty much as a silhouette there is just not enough detail recorded. would bracketing have worked?
I doubt it - it's a no win scenario. If you exposure for the bird, the sky would blow out and start bleeding into the branches. Sometimes the conditions prevent a good photo.
Feb 1, 2018 22:28:03 #
Bill_de wrote:
I'll bet that somebody who was good a PP could save the image. I don't mean me, but this I think shows hope. This was done from the thumbnail.
The problem is, there's no info in the areas that have problem to save. It's like trying to clone a baseball hat off of someone - how do you put their hair where the cap was?
Feb 1, 2018 22:31:23 #
What do you mean, "this was done from the thumbnail???"
Bill_de wrote:
I'll bet that somebody who was good a PP could save the image. I don't mean me, but this I think shows hope. This was done from the thumbnail.
Feb 1, 2018 22:36:52 #
Feb 1, 2018 22:47:07 #
GalaxyCat wrote:
What do you mean, "this was done from the thumbnail???"
The picture you see when you go to a post on UHH they refer to as a thumbnail. No matter what size image you upload it is reduced in size to 600px wide. If you choose you can click on save original. Then a viewer can click on 'download' and see the full size original.
I'm not sure thumbnail is the word I would use, but when in Rome ...
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Feb 1, 2018 23:00:38 #
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