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Photoshop showing low quality graphics


Question

Hi guys,

I've gotten a strange problem in Photoshop, which I've never had before. I had this background image that I had downloaded from a website to try and recreate something like it. After i downloaded it and opened it up it all looked fine. Then the other day when i wanted to start working on my project Photoshop was showing the image in very low quality where it added noise and pixelated the image.

I tried creating a new document and made a standard radial gradient, but noticed that the samme thing happened. It added a lot of noise to the edges of the image (Almost like the Dissolve blending mode would) and the newly created image appears at a very low quality.

I'm not sure what to do. I've tried opening up the file at work, and there is nothing to see there. (Same version of Photoshop CS5).

I've attached the file so you can see what i mean. I also tried to recreate this by downloading the background image from battle.net - I've attached the and image of how it looks in Photoshop.

You can go here to see the "real" one : http://eu.battle.net/static/images/layout/bg-top.jpg

post-289916-0-10846600-1296759421.jpg

post-289916-0-11351600-1296759697.jpg

9 answers to this question

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  On 03/02/2011 at 19:04, Tom said:

It looks like you've got it to the wrong bit setting.

When you create a new page set it to 8bit.

Like this.

Screen_shot_2011-02-03_at_7.04.51_PM.png

They are all already set to 8bit. I've tried changing it around to 16 and 32bit to see if that was what is wrong. However that didn't help.

I've also tried to "reset" Photoshop (Holding down ctrl+alt+shift while starting up the program), since it has worked I thought I might have touched a setting or something that I shouldn't have, but that didn't help either.

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  On 03/02/2011 at 19:02, madskl said:

Hi guys,

I've gotten a strange problem in Photoshop

Try this: right click -> screen resolution -> advanced settings --> monitor

post-225596-0-92389600-1296761380.jpg

I changed it to 16bit and got the same results as on your screenshot.

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  On 03/02/2011 at 19:30, IMPSBL said:

Try this: right click -> screen resolution -> advanced settings --> monitor

post-225596-0-92389600-1296761380.jpg

I changed it to 16bit and got the same results as on your screenshot.

I've already have it at those settings.

post-289916-0-70651400-1296761687.jpg

EDIT:

I just found out that by opening up the image in the standard Windows 7 image viewer also shows the pixelation. I guess this is not "only" a Photoshop problem, but something else.

Edited by madskl
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Mate this happens to everyone. It's called 'Gradient Banding'.

You are getting banding because the difference between colors is too wide. The monitor is able to show the millions of color that a printer can't. Never use the gradient tool for full page gradients. Instead set up a new FILL layer as a Gradient. This allows you to retain the ability to scale, rotate, invert, and otherwise edit the gradient. - taken from the interwebs but I couldn't explain it better myself.

If all the above hasn't worked you can duplicate the layer and adda gausian blur till the banding reduces or goes away.

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