polar coordinates query

K
Posted By
ken
May 27, 2008
Views
260
Replies
2
Status
Closed
I’ve got a problem with the Polar Coordinates filter that probably can’t be fixed, but I thought I’d still ask…

I’m doing some graphics work that requires converting an image from polar to rectangular, then back to polar again. It *should* go back to the original image, but in practice, there’s a bit of overlap, resulting in a bit of the image being lost.

Does anyone know of a way to get round this? (I use PS6, BTW).

Thanks in advance

Ken
Related Tags

Must-have mockup pack for every graphic designer 🔥🔥🔥

Easy-to-use drag-n-drop Photoshop scene creator with more than 2800 items.

GH
Gernot Hoffmann
May 27, 2008
ken schrieb:
I’ve got a problem with the Polar Coordinates filter that probably can’t be fixed, but I thought I’d still ask…

I’m doing some graphics work that requires converting an image from polar to rectangular, then back to polar again. It *should* go back to the original image, but in practice, there’s a bit of overlap, resulting in a bit of the image being lost.

Does anyone know of a way to get round this? (I use PS6, BTW).
Thanks in advance

Ken

Increasing the size of the canvas seems to help a little, for instance by factor 1.5 in both directions.

I am familiar with coordinate systems, but I don’t understand the meaning of Photoshop’s transforms. I had just tested Cartesian –> Polar followed by Polar –> Cartesian.

Best regards –Gernot Hoffmann
MR
Mike Russell
May 27, 2008
Gernots suggestion of increasing the canvas size is good, plus you can do an image resize to increase the number of pixels, to help retain the original image.
—
Mike Russell – http://www.curvemeister.com

Master Retouching Hair

Learn how to rescue details, remove flyaways, add volume, and enhance the definition of hair in any photo. We break down every tool and technique in Photoshop to get picture-perfect hair, every time.

Related Discussion Topics

Nice and short text about related topics in discussion sections