Eliminating low density pixel areas – CS2

R
Posted By
ronviers
Oct 17, 2006
Views
399
Replies
4
Status
Closed
Hi,
I am able to select, either with channel, or otherwise, masks or ‘color range’ or whatever, areas for extraction – like flowers or yarn balls or kittens etc. But each time I make a selection more or less of the rest of the image remains along with the object of interest. So my question is how do I get rid of the residual (largely transparent areas) pixels that remain after the selection? It seems like it should be pretty easy but I have tried everything I can think of. Btw, I know I can do the extraction with the pen tool and stroke but I would like to avoid that if possible. Although I really enjoy zoning out with the pen tool and looking up and six hours have passed that may not always the best time spent.

Thanks,
Ron
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area density low pixel

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AM
Andrew Morton
Oct 17, 2006
wrote:
Hi,
I am able to select, either with channel, or otherwise, masks or ‘color range’ or whatever, areas for extraction – like flowers or yarn balls or kittens etc. But each time I make a selection more or less of the rest of the image remains along with the object of interest. So my question is how do I get rid of the residual (largely transparent areas) pixels that remain after the selection? It seems like it should be pretty easy but I have tried everything I can think of. Btw, I know I can do the extraction with the pen tool and stroke but I would like to avoid that if possible. Although I really enjoy zoning out with the pen tool and looking up and six hours have passed that may not always the best time spent.

You can subtract from a selection by holding the ctrl key while making a selection, so in combination with inverting the original selection you should be able to deselect the outlying residuals.

Andrew
R
ronviers
Oct 17, 2006
You can subtract from a selection by holding the ctrl key while making a selection, so in combination with inverting the original selection you should be able to deselect the outlying residuals.

Andrew

Hi Andrew,
If I understand what you are suggesting, and I probably do not, then the problem is that with yarn balls and kitten hair the detail is too fine. I have thought about it some more and what I would really like to have is a paintbrush tip, or even a filter for that matter, that would look for pixels missing neighboring pixels and if a pixel is missing a neighbor then delete that pixel. Do you know of something like that?

Thanks for the info,
Ron
MR
Mike Russell
Oct 17, 2006
wrote in message
….
[re creating a clean selection or mask]
the problem is that with yarn balls and kitten hair the detail is too fine. I have thought about it some more and what I would really like to have is a paintbrush tip, or even a filter for that matter, that would look for pixels missing neighboring pixels and if a pixel is missing a neighbor then delete that pixel. Do you know of something like that?

Try out Photoshop’s Extract filter – it’s worth spending an hour or so to learn:
http://www.myjanee.com/tuts/restore/restore.htm

GrowCut is another interesting, and free, filter that is similar to Extract, but a bit more interactive and fun.
http://research.graphicon.ru/image-processing/gml-growcut.ht ml

GrowCut will also work with Elements, as discussed in the thread below: http://www.curvemeister.com/forum/index.php?topic=48.0
—

Mike Russell
www.curvemeister.com/forum/
R
ronviers
Oct 17, 2006
Try out Photoshop’s Extract filter – it’s worth spending an hour or so to learn:
http://www.myjanee.com/tuts/restore/restore.htm

GrowCut is another interesting, and free, filter that is similar to Extract, but a bit more interactive and fun.
http://research.graphicon.ru/image-processing/gml-growcut.ht ml
GrowCut will also work with Elements, as discussed in the thread below: http://www.curvemeister.com/forum/index.php?topic=48.0
—

Mike Russell
www.curvemeister.com/forum/

Hi Mike,
Thanks as always.
Ron

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