You didn't say what version of Photoshop you are using but CS has a Rounded
Rectangle Tool as one of the Shapes tool sets. With this tool you can
type in the pixel radius you want for a rounded rectangle.

If you are using a selection to begin with, you can also use the
Modify>Expand or Modify>Contract commands. Both of these will shave off
pixels on the corners but they not as precise at the shape tool method.



(the)duckster wrote:

> Dear Experienced PhotoShop Users,
>
> I would like to take a square object, such as a tooth, and round off the
> corners.  I have found various ways using replace color, or by using a pai
nt
> brush to do so pixels by pixel.  This way, however leaves me with a jagged
> edge and not the round smooth one I am looking for.
>
> I am new to PhotoShop and don't speak its language fluently, so I am unsur
e
> as to what this technique is called.
>
> Might someone be kind enough to at least tell me in PS speak what I am
> looking for?  A tip or two how to accomplish this task would be mighty
> appreciated, but not necessary. :)
>
> TIA to all,
>
> Kelly Kirsch
>
>

>I would like to take a square object, such as a tooth, and round off the
>corners.

If you are talking about rounding the corners of a picture of an object, the
re
are several ways, all of which require some degree of artistic skill.

The way I approach problems like this is usually with the Pen tool. Use the 
Pen
tool to put a rounded path around the object, then turn the path into a
selection and use the Rubber Stamp or Paintbrush (as appropriate) to modify 
the
object.

--
Art, literature, shareware, polyamory, kink, and more:
http://www.xeromag.com/franklin.html

(the)duckster wrote:
> Dear Experienced PhotoShop Users,
>
> I would like to take a square object, such as a tooth, and round off the
> corners.  I have found various ways using replace color, or by using a pai
nt
> brush to do so pixels by pixel.  This way, however leaves me with a jagged
> edge and not the round smooth one I am looking for.
>
> I am new to PhotoShop and don't speak its language fluently, so I am unsur
e
> as to what this technique is called.
>
> Might someone be kind enough to at least tell me in PS speak what I am
> looking for?  A tip or two how to accomplish this task would be mighty
> appreciated, but not necessary. :)

Try this..  do a filter > blur > gaussian blur to get a good sized blur on y
our
object, for 300x300 i'd go about a 5-9 radius on the blur setting.  Just wat
ch
the preview till you see a good size curve.  You can always undo and tweak i
t
after you see what the next step comes up with..

Now hit it with Image > Adjustment > Levels with a setting of  Input Levels 
=
117  1.74  128

Go back to blur and tweak it till you get a good sized curve..

That's one way to do it.. it also should work for other things than a simple
square.

A cheap and dirty way is to create a rounded-corner shape (it's in the
shapes menu). Scale it (edit-transform-scale) so that it fits your picture
with your picture's edges hanging outside the rounded shape. Then in the
shape's layer, select the area outside the shape. Go to your original layer
and press 'delete'. Done. (Then you can wink-out or delete the shape layer.)

jjs wrote:
> A cheap and dirty way is to create a rounded-corner shape (it's in the
> shapes menu). Scale it (edit-transform-scale) so that it fits your picture
> with your picture's edges hanging outside the rounded shape. Then in the
> shape's layer, select the area outside the shape. Go to your original laye
r
> and press 'delete'. Done. (Then you can wink-out or delete the shape layer
.)
>
>
You should not use Delete when a Layer Mask will do.

--
Comic book sketches and artwork:
http://www.sover.net/~hannigan/edjh.html
Comics art for sale:
http://www.sover.net/~hannigan/batsale.html

"edjh" <edjhann@hotmail.com> wrote in message
news:kxY9d.2854$Pd2.1073453@monger.newsread.com...
> jjs wrote: 
> You should not use Delete when a Layer Mask will do.

I stand corrected.

>I would like to take a square object, such as a tooth, and round off the
>corners.

If you are talking about rounding the corners of a picture of an object, the
re
are several ways, all of which require some degree of artistic skill.

The way I approach problems like this is usually with the Pen tool. Use the 
Pen
tool to put a rounded path around the object, then turn the path into a
selection and use the Rubber Stamp or Paintbrush (as appropriate) to modify 
the
object.

--
Art, literature, shareware, polyamory, kink, and more:
http://www.xeromag.com/franklin.html