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Information about Set Measurements

Adrián Villalba
Dear all,

I want to know where ca i find more information about some parameters that
i can measure in imageJ such as FeretX, FeretY, all the shape descriptors
information (AR, round, circularity...) I found a short description at the
user manual of imageJ but i want to know if there is some place where it is
high described and explained (for example, how does imageJ measure
FerretMin?) .

Thank you in advance

--

   - Adrián Villalba Felipe.
   https://es.linkedin.com/in/adrianvillalba

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html
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Re: Information about Set Measurements

Swayne, Theresa C.
Dear Adrián,

The code for the calculation is in the ROI class:
https://imagej.nih.gov/ij/developer/source/ij/gui/Roi.java.html

This is the link to the browsable source code for ImageJ:
https://imagej.nih.gov/ij/developer/source/index.html

Hope this helps,
Theresa

On May 3, 2017, at 9:50 AM, Adrián Villalba <[hidden email]<mailto:[hidden email]>> wrote:

Dear all,

I want to know where ca i find more information about some parameters that
i can measure in imageJ such as FeretX, FeretY, all the shape descriptors
information (AR, round, circularity...) I found a short description at the
user manual of imageJ but i want to know if there is some place where it is
high described and explained (for example, how does imageJ measure
FerretMin?) .

Thank you in advance

--

  - Adrián Villalba Felipe.
  https://es.linkedin.com/in/adrianvillalba

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

------------------------------------
Theresa Swayne, Ph.D.
Manager
Confocal and Specialized Microscopy Shared Resource<http://hiccc.columbia.edu/research/sharedresources/confocal>

Herbert Irving Comprehensive Cancer Center
Columbia University Medical Center
1130 St. Nicholas Ave., Room 222A
New York, NY 10032
Phone: 212-851-4613
[hidden email]<mailto:[hidden email]>


--
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Re: Information about Set Measurements

Adrián Villalba
Dear Theresa,

Thank you for the code library! Do you know if in addition i can find the
mathematical explanation?
Thanks in advance!

2017-05-03 16:51 GMT+02:00 Swayne, Theresa C. <[hidden email]>:

> Dear Adrián,
>
> The code for the calculation is in the ROI class:
> https://imagej.nih.gov/ij/developer/source/ij/gui/Roi.java.html
>
> This is the link to the browsable source code for ImageJ:
> https://imagej.nih.gov/ij/developer/source/index.html
>
> Hope this helps,
> Theresa
>
> On May 3, 2017, at 9:50 AM, Adrián Villalba <[hidden email]<mailto:ad
> [hidden email]>> wrote:
>
> Dear all,
>
> I want to know where ca i find more information about some parameters that
> i can measure in imageJ such as FeretX, FeretY, all the shape descriptors
> information (AR, round, circularity...) I found a short description at the
> user manual of imageJ but i want to know if there is some place where it is
> high described and explained (for example, how does imageJ measure
> FerretMin?) .
>
> Thank you in advance
>
> --
>
>   - Adrián Villalba Felipe.
>   https://es.linkedin.com/in/adrianvillalba
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
> ------------------------------------
> Theresa Swayne, Ph.D.
> Manager
> Confocal and Specialized Microscopy Shared Resource<http://hiccc.
> columbia.edu/research/sharedresources/confocal>
>
> Herbert Irving Comprehensive Cancer Center
> Columbia University Medical Center
> 1130 St. Nicholas Ave., Room 222A
> New York, NY 10032
> Phone: 212-851-4613
> [hidden email]<mailto:[hidden email]>
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>



--

   - Adrián Villalba Felipe.
   https://es.linkedin.com/in/adrianvillalba

--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html
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Re: Information about Set Measurements

Swayne, Theresa C.

Dear Adrián,

The code shows in detail how ImageJ calculates the Feret values.
But it may not be so easy to read.

In short, if I’m reading correctly, it finds a polygon approximating the convex hull of the particle, then generates diameters of the polygon at a series of angles, in 0.5 degree increments. The shortest of all these diameters is stored as the minFeret.

You can search the forum (forum.imagej.net<http://forum.imagej.net>) and the archives of this list for more discussion that is more detailed than the user manual, but less code-y than the source.

Hope this helps,
Theresa

On May 3, 2017, at 10:55 AM, Adrián Villalba <[hidden email]<mailto:[hidden email]>> wrote:

Dear Theresa,

Thank you for the code library! Do you know if in addition i can find the
mathematical explanation?
Thanks in advance!

2017-05-03 16:51 GMT+02:00 Swayne, Theresa C. <[hidden email]<mailto:[hidden email]>>:

Dear Adrián,

The code for the calculation is in the ROI class:
https://imagej.nih.gov/ij/developer/source/ij/gui/Roi.java.html

This is the link to the browsable source code for ImageJ:
https://imagej.nih.gov/ij/developer/source/index.html

Hope this helps,
Theresa

On May 3, 2017, at 9:50 AM, Adrián Villalba <[hidden email]<mailto:ad
[hidden email]>> wrote:

Dear all,

I want to know where ca i find more information about some parameters that
i can measure in imageJ such as FeretX, FeretY, all the shape descriptors
information (AR, round, circularity...) I found a short description at the
user manual of imageJ but i want to know if there is some place where it is
high described and explained (for example, how does imageJ measure
FerretMin?) .

Thank you in advance

--

 - Adrián Villalba Felipe.
 https://es.linkedin.com/in/adrianvillalba

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

------------------------------------
Theresa Swayne, Ph.D.
Manager
Confocal and Specialized Microscopy Shared Resource<http://hiccc.
columbia.edu/research/sharedresources/confocal>

Herbert Irving Comprehensive Cancer Center
Columbia University Medical Center
1130 St. Nicholas Ave., Room 222A
New York, NY 10032
Phone: 212-851-4613
[hidden email]<mailto:[hidden email]>


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




--

  - Adrián Villalba Felipe.
  https://es.linkedin.com/in/adrianvillalba

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

------------------------------------
Theresa Swayne, Ph.D.
Manager
Confocal and Specialized Microscopy Shared Resource<http://hiccc.columbia.edu/research/sharedresources/confocal>

Herbert Irving Comprehensive Cancer Center
Columbia University Medical Center
1130 St. Nicholas Ave., Room 222A
New York, NY 10032
Phone: 212-851-4613
[hidden email]<mailto:[hidden email]>


--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html
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Re: Information about Set Measurements

Stefan Helfrich-2
Dear Adrian, dear Theresa,

as Theresa has already pointed out, you can find more information on the
measurements at
https://imagej.nih.gov/ij/docs/guide/146-30.html#toc-Subsection-30.7

Best,
Stefan

On 05/03/2017 05:13 PM, Swayne, Theresa C. wrote:

> Dear Adrián,
>
> The code shows in detail how ImageJ calculates the Feret values.
> But it may not be so easy to read.
>
> In short, if I’m reading correctly, it finds a polygon approximating the convex hull of the particle, then generates diameters of the polygon at a series of angles, in 0.5 degree increments. The shortest of all these diameters is stored as the minFeret.
>
> You can search the forum (forum.imagej.net<http://forum.imagej.net>) and the archives of this list for more discussion that is more detailed than the user manual, but less code-y than the source.
>
> Hope this helps,
> Theresa
>
> On May 3, 2017, at 10:55 AM, Adrián Villalba <[hidden email]<mailto:[hidden email]>> wrote:
>
> Dear Theresa,
>
> Thank you for the code library! Do you know if in addition i can find the
> mathematical explanation?
> Thanks in advance!
>
> 2017-05-03 16:51 GMT+02:00 Swayne, Theresa C. <[hidden email]<mailto:[hidden email]>>:
>
> Dear Adrián,
>
> The code for the calculation is in the ROI class:
> https://imagej.nih.gov/ij/developer/source/ij/gui/Roi.java.html
>
> This is the link to the browsable source code for ImageJ:
> https://imagej.nih.gov/ij/developer/source/index.html
>
> Hope this helps,
> Theresa
>
> On May 3, 2017, at 9:50 AM, Adrián Villalba <[hidden email]<mailto:ad
> [hidden email]>> wrote:
>
> Dear all,
>
> I want to know where ca i find more information about some parameters that
> i can measure in imageJ such as FeretX, FeretY, all the shape descriptors
> information (AR, round, circularity...) I found a short description at the
> user manual of imageJ but i want to know if there is some place where it is
> high described and explained (for example, how does imageJ measure
> FerretMin?) .
>
> Thank you in advance
>
> --
>
>   - Adrián Villalba Felipe.
>   https://es.linkedin.com/in/adrianvillalba
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
> ------------------------------------
> Theresa Swayne, Ph.D.
> Manager
> Confocal and Specialized Microscopy Shared Resource<http://hiccc.
> columbia.edu/research/sharedresources/confocal>
>
> Herbert Irving Comprehensive Cancer Center
> Columbia University Medical Center
> 1130 St. Nicholas Ave., Room 222A
> New York, NY 10032
> Phone: 212-851-4613
> [hidden email]<mailto:[hidden email]>
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
>
>
>
> --
>
>    - Adrián Villalba Felipe.
>    https://es.linkedin.com/in/adrianvillalba
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>
> ------------------------------------
> Theresa Swayne, Ph.D.
> Manager
> Confocal and Specialized Microscopy Shared Resource<http://hiccc.columbia.edu/research/sharedresources/confocal>
>
> Herbert Irving Comprehensive Cancer Center
> Columbia University Medical Center
> 1130 St. Nicholas Ave., Room 222A
> New York, NY 10032
> Phone: 212-851-4613
> [hidden email]<mailto:[hidden email]>
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html

--
Dr. Stefan Helfrich
Bioimaging Center (L931)
University of Konstanz

PO Box 604
78457 Konstanz
Germany

Tel +49-7531-884666
Fax +49-7531-884005

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