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Photoshop posterization problem

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  #1  
Old 11-02-2009, 01:02 PM
decu decu is offline
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Photoshop posterization problem

Hi gues, im experiencing a problem with a photoshop posterization when im using brushes. They looks like im using a 256 color. Example is attached.
16bit RGB, Photoshop cs4, monitor nec 2190uxi, monitor is two weeks ago calibrated, gpu nvidia 8800gt. Hope for your help.
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File Type: jpg disk.jpg (32.4 KB, 54 views)
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  #2  
Old 11-03-2009, 03:35 AM
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KarimNassar KarimNassar is offline
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Re: Photoshop posterization problem

what color space are you in? the broader the color space the more posterisation you will get. reset your brush settings in the brush palettes just in case also
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Old 11-03-2009, 03:40 AM
decu decu is offline
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Re: Photoshop posterization problem

monitor is calibrated, so there is my own color space for this monitor. anyway if i change it to srgb result is the same. Brush reset too doesnt help...
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Old 11-03-2009, 06:15 AM
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pavel123 pavel123 is offline
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Re: Photoshop posterization problem

I am not sure how posterization with brushes work, but posterization does imply that you reduce number of colors, actually way less then 256, more like 10 or 15.
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Old 11-03-2009, 07:30 AM
Quantum3 Quantum3 is offline
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Re: Photoshop posterization problem

Posterization? Where?
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  #6  
Old 11-03-2009, 07:36 AM
decu decu is offline
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Re: Photoshop posterization problem

May be posterization is not the right word, i dont know the name of this effect.
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  #7  
Old 11-03-2009, 11:25 AM
Quantum3 Quantum3 is offline
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Re: Photoshop posterization problem

I mean, I don't see posterization in the attachmed image.
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Old 11-03-2009, 11:27 AM
Quantum3 Quantum3 is offline
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Re: Photoshop posterization problem

By the way, monitors sometimes shows posterization when the zoom size is not 100%. Better try doing a print, prints have much more tonal values than monitors. If you see posterization in the print, then you have a problem.
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  #9  
Old 11-03-2009, 12:12 PM
decu decu is offline
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Re: Photoshop posterization problem

My monitor shows allot of tonal values, and this problem appears 2-3 weeks ago..
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Old 11-03-2009, 05:25 PM
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pavel123 pavel123 is offline
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Re: Photoshop posterization problem

The attached file looks pure white to me.

A more detailed description of your workflow and the issue itself could be very helpful.
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