Finding shapes

[donny008]

Hello

I have an image and after using the "Find Edge" option, i get most of the
non homogeneous structures in my image. but i want to avoid certain shapes
which correspond to triangle or polygons. I am attaching the image to get a
better impression. could someone please help me to avoid these shapes from
my final image.  Is there some way to recognize these shapes and avoid them.

Thanks for the response

Regards


--
Donny George

[donny008]

Is there no one who can help me with this. I have been trying to do this for
some days now. Please help.

don


On Sun, May 16, 2010 at 10:49 PM, Donny George <[hidden email]> wrote:

> Hello
>
> I have an image and after using the "Find Edge" option, i get most of the
> non homogeneous structures in my image. but i want to avoid certain shapes
> which correspond to triangle or polygons. I am attaching the image to get a
> better impression. could someone please help me to avoid these shapes from
> my final image.  Is there some way to recognize these shapes and avoid them.
>
> Thanks for the response
>
> Regards
>
>
> --
> Donny George
>

--
Donny George

[Michael Schmid]

Hi Donny,

it looks almost hopeless on the image after edge detection - is there  
no way to do it before, after strong background subtraction (Subtract  
background with small radius, various background subtraction options  
of the Fast Filters plugin, Highpass etc)?

Michael
________________________________________________________________

On 16 May 2010, at 22:49, Donny George wrote:

> Hello
>
> I have an image and after using the "Find Edge" option, i get most  
> of the
> non homogeneous structures in my image. but i want to avoid certain  
> shapes
> which correspond to triangle or polygons. I am attaching the image  
> to get a
> better impression. could someone please help me to avoid these  
> shapes from
> my final image.  Is there some way to recognize these shapes and  
> avoid them.
>
> Thanks for the response
>
> Regards
>
>
> --
> Donny George<res.jpg>

[Gabriel Landini]

On Monday 17 May 2010  09:59:55 you wrote:
> Is there no one who can help me with this. I have been trying to do this
> for some days now. Please help.
>

You could start by not using jpegs. Your image looks like it is mostly edges
of jpeg artifacts.
http://pacific.mpi-cbg.de/wiki/index.php/IP_Principles

G.

[GCH-2]

Don,

Try the Shape descriptor plugin. It has some options to exclude  
particles based on their shape. However, you will need to process the  
image differently before thresholding. You will probably need to  
apply the watershed option after thresholding too. Can you send the  
original image?

Once you have a binary image with single particles, run a full  
analysis first and then verify the shapes that describe the particles  
you want to remove. RUn the plugin again and use the shape values as  
thresholds for removing the particles.

http://www.gcsca.net/IJ/Shapes.html

I hope this helps,

Gary.
http://www.gcsca.net


On May 17, 2010, at 9:58 AM, Donny George wrote:

> Is there no one who can help me with this. I have been trying to do  
> this for
> some days now. Please help.
>
> don
>
>
> On Sun, May 16, 2010 at 10:49 PM, Donny George <[hidden email]>  
> wrote:
>
>> Hello
>>
>> I have an image and after using the "Find Edge" option, i get most  
>> of the
>> non homogeneous structures in my image. but i want to avoid  
>> certain shapes
>> which correspond to triangle or polygons. I am attaching the image  
>> to get a
>> better impression. could someone please help me to avoid these  
>> shapes from
>> my final image.  Is there some way to recognize these shapes and  
>> avoid them.
>>
>> Thanks for the response
>>
>> Regards
>>
>>
>> --
>> Donny George
>>
>
>
>
> --
> Donny George