How To Round off the corner of a square

D
Posted By
duckster
Oct 8, 2004
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1684
Replies
6
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Closed
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 paint 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 unsure 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
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B
bogus
Oct 8, 2004
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 paint 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 unsure 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

T
tacitr
Oct 9, 2004
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, there 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.

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M
MorituriMax
Oct 9, 2004
(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 paint 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 unsure 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 your object, for 300×300 i’d go about a 5-9 radius on the blur setting. Just watch the preview till you see a good size curve. You can always undo and tweak it 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.
J
jjs
Oct 9, 2004
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.)
E
edjh
Oct 9, 2004
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 layer 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.

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J
jjs
Oct 9, 2004
"edjh" wrote in message
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 layer 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.

I stand corrected.

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