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07/16/2007 10:36:14 PM · #1 |
I'm trying to create a radial background for this headshot:
First I created a fill layer with a radial gradient, but it created visible curves. Here's a 100% crop from the upper left - you can see the bands curving around from the bottom up to the right:
So then I rasterized the fill layer, but the curves are still there.
And no amount of gaussian blur gets rid of them.
The lines are visible in Photoshop; they're not an artifact of exporting to JPG.
Fill layers created in both 8-bit and 16-bit have the problem.
I can't believe it's not possible to create a smooth gradient.
Help!
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07/16/2007 10:38:24 PM · #2 |
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07/16/2007 11:04:04 PM · #3 |
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07/16/2007 11:06:35 PM · #4 |
Originally posted by wavelength:
gaussian blur? |
Nope - no amount of gaussian blur gets rid of the rings.
A little noise does, but it doesn't seem right to me that I'd have to add noise.
I've even gone in and added lots of noise and then lots of gaussian blur. The rings come right back.
Grrr....
Message edited by author 2007-07-16 23:27:11.
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07/17/2007 12:08:45 AM · #5 |
Originally posted by levyj413:
Originally posted by wavelength:
gaussian blur? |
Nope - no amount of gaussian blur gets rid of the rings.
A little noise does, but it doesn't seem right to me that I'd have to add noise.
I've even gone in and added lots of noise and then lots of gaussian blur. The rings come right back.
Grrr.... |
oh, then maybe your monitor just sucks at greyscale? Those bands in your 100% look very minor to me, and probably won't show in a print at all. |
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07/17/2007 12:17:06 AM · #6 |
Originally posted by wavelength:
oh, then maybe your monitor just sucks at greyscale? Those bands in your 100% look very minor to me, and probably won't show in a print at all. |
Heh. I wish that were it! I just printed a test, and the bands are easily visible. That is, they're subtle, but I can definitely see them.
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07/17/2007 12:23:06 AM · #7 |
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07/17/2007 01:01:49 AM · #8 |
Yup, you got to dither, dude. I use gradients in my skies all the time, print 'em at 16x20, and they don't show.
R.
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07/17/2007 01:18:43 AM · #9 |
Originally posted by C_Steve_G:
Hast thou used dither? |
Doesn't have any effect.
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07/17/2007 01:30:59 AM · #10 |
| First of all: What version of PS are you using? Second what monitor are you on? Do you have a high quality graphics card? I am on a Mac running PS CS3 and have no problems creating a radial gradient. I create a new file in 16 bit mode and create a new fill layer and select radial. I can zoom in 300% with 0 banding. I have a feeling it is either your monitor or the graphics card. Seeing the banding in the print because the print is done in an 8 bit world. Depending on the printer you have it may have a problem rendering smooth gradients in grayscale. You may need a printer with multiple blacks. |
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07/17/2007 01:40:21 AM · #11 |
Originally posted by jtlee321:
First of all: What version of PS are you using? Second what monitor are you on? Do you have a high quality graphics card? I am on a Mac running PS CS3 and have no problems creating a radial gradient. I create a new file in 16 bit mode and create a new fill layer and select radial. I can zoom in 300% with 0 banding. I have a feeling it is either your monitor or the graphics card. Seeing the banding in the print because the print is done in an 8 bit world. Depending on the printer you have it may have a problem rendering smooth gradients in grayscale. You may need a printer with multiple blacks. |
I have an nVdia 6800 GT card, PS CS2, and a 20" monitor that's never had problems showing gradients before.
I'm not going to worry about it any more, though. After rasterizing it and adding a little noise, and then printing at full quality, they're gone. It was printing at draft quality that had them still showing up.
Thanks, everyone!
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