Which units does viscircle use

Hi, function viscircles gives me the output radii = 30 . But I have no idea in which units it is.

Thank you for answer

Answer 1

[Kevin Holly]

I believe it is based on the coordinates of your axes. If you have an image, it would be pixels.

[Eliska Paulikova]

It is an image

The centers gives me x and y

So you thing the radii is in pixels

Thank you so much

[Kevin Holly]

Yes, it should be.

Are you sure you weren't using imfindcircles as this function provide radii as an output whereas viscircles provides a handle as an output.

[Eliska Paulikova]

Oh yes you are right I use imfindcircles

[Eliska Paulikova]

So it is still in pixels?

[Kevin Holly]

Yes, it is. If you want to see for yourself, you can type:

axis on

to see the axes coordinates which your image is on. This should match the pixel dimensions of your image.