Hough Transform for Circle detection

[YuriGagarine]

Hi all,
I would like to code a Hough Transform algorithm for circle detection, I already coded for line detection and it works pefectly. I detect lines thanks to the "find maxima" function, I use it on the hough space which is a 2D image but now that I want to detect circle I need to create the hough space for circle detection which needs to be represented on a 3D image.

My question is : where can I find plugins which allow me to create 3D images and to find local maxima on a 3D image ?

What I mean by create a 3D images is to set the value of each voxel of this image.

Sorry for my english and thanks in advance.

[YuriGagarine]

UP !

[YuriGagarine]

Hi again,

I finally found how to create a 3D image but I couldn't find how to detect local maxima on a 3D image. Is there any plugin able to do that ?



Thanks in advance.

[Thomas Boudier]

Hi,

Have a look to 3D Filters plugin :

http://imagejdocu.tudor.lu/doku.php?id=plugin:filter:3d_filters:start

best,

Thomas

> Hi again,
>
> I finally found how to create a 3D image but I couldn't find how to detect
> local maxima on a 3D image. Is there any plugin able to do that ?
>
> <http://imagej.1557.x6.nabble.com/file/n5007071/tops.png>
>
> Thanks in advance.
>
>
>
> --
> View this message in context:
> http://imagej.1557.x6.nabble.com/Hough-Transform-for-Circle-detection-tp5007033p5007071.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
>

--
Thomas Boudier, UPMC

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html

[YuriGagarine]

Thanks for the link but I couldn't find the function "3D local maxima", I used "3D Fast Filters" and it only process the 3D_Mean function. I also look in the "find command" function to seek for a plugin that allow to find 3D local maxima but there is nothing despite I installed all the plugins from this link :

http://imagejdocu.tudor.lu/doku.php?id=plugin:filter:3d_filters:start

Thanks in advance for your help and sorry for my english.

[Thomas Boudier]

Hi,

Just select "plugins/3D/FastFilters3D" then "Local Maxima" in the list
where you can choose the filter, "Mean Filter" is the default filter.

Best,

Thomas

> Thanks for the link but I couldn't find the function "3D local maxima", I
> used "3D Fast Filters" and it only process the 3D_Mean function. I also
> look
> in the "find command" function to seek for a plugin that allow to find 3D
> local maxima but there is nothing despite I installed all the plugins from
> this link :
>
> http://imagejdocu.tudor.lu/doku.php?id=plugin:filter:3d_filters:start
>
> Thanks in advance for your help and sorry for my english.
>
>
>
>
> --
> View this message in context:
> http://imagej.1557.x6.nabble.com/Hough-Transform-for-Circle-detection-tp5007033p5007145.html
> Sent from the ImageJ mailing list archive at Nabble.com.
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
>

--
Thomas Boudier, UPMC

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html

[YuriGagarine]

Oh yes ! Sorry for my dumb question, I didn't see there were selections. Thanks a lot.