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DPChallenge Forums >> Tips, Tricks, and Q&A >> Jagged edges
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04/03/2007 01:25:56 PM · #1
I wanted to make a "my world" type of image (like this one //www.dpchallenge.com/how.php?HOW_ID=42 ), but the jagged edges on long skinny objects keeps messing up my worlds. example: //img129.imageshack.us/my.php?image=untitled1uk4.jpg

Is there any way to un-jag the jagged edges?

Thanks!

Message edited by author 2007-04-03 13:26:15.
04/03/2007 01:34:18 PM · #2
The simple answer is increase the resolution. At some point, when there are too few pixels to work with, diagonal lines will always experience "jaggies" -- think of pixels as small square colored tiles, building up the image as a mosaic.
04/03/2007 01:38:41 PM · #3
To expand a little on GeneralE's response. Start with a higher-res image. If a hi-res original is not available, decrease the size of the final image.
04/03/2007 02:20:28 PM · #4
Hmm. I was fearing those kinds of replies lol. If I made my starting image any bigger, my computer would probably explode :P I guess it looks OK if I make the final picture smaller, I was just hoping there was some sort of filter or technique that would fix the jaggies. Oh well.

Thanks :)

Message edited by author 2007-04-03 14:20:42.
04/03/2007 02:25:33 PM · #5
Well, anyplace you have an option to use anti-aliasing, use it.

If you're downsampling in PS CS (or later) or later versions of Elements, the standard recommendation is to use the Bicubic Sharper algorithm.
04/03/2007 02:50:26 PM · #6
Originally posted by GeneralE:


If you're downsampling in PS CS (or later) or later versions of Elements, the standard recommendation is to use the Bicubic Sharper algorithm.


I have found from experience, if you are downsizing something with obvious diagnol lines, then use Bicubic Smoother to keep the jaggies down. The difference is remarkable.
04/03/2007 03:19:55 PM · #7
Hmm. After some searching, I think I know what you're talking about (I'm a newbie photographer and photoshopper) I don't think I can really fix it because it's not resizing that's causing the problem. See, I start out with a huge (~80 inches by ~15 inches, or 5897x1037 pixels) panorama, I apply the polar coordinates filter, and then I stretch the image to a big square. It's that polar coordinates/stretching that causes the jaggies, and there's no anti-aliasing option.
04/08/2007 07:43:43 PM · #8
any idea where this Polar filter is in CS2?
04/08/2007 07:46:01 PM · #9
Filter> distort> polar coordinates
04/08/2007 07:47:14 PM · #10
why thankyou
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