Re: Measuring Angles between adjacent particles

Posted by Yuming Liu on Feb 10, 2017; 5:45pm
URL: http://imagej.273.s1.nabble.com/Measuring-Angles-between-adjacent-particles-tp5018001p5018078.html

Hi Fabrice,

To my knowledge, Orientation J uses structure tensor to  calculate orientation of each pixel and does not directly track fiber. But it can give you a quick evaluation of overall alignment of any image or any region of interest.

While our tool, CurveAlign, directly tracks fiber using either curvelet transform or fiber propagation algorithm and is able to yield overall alignment as well was localized alignment. It also has a feature to calculate the relative angle of a fiber with respect to a user-defined boundary. The new version to be released soon is under test now and is available to be downloaded from our website. Please give it a try if interested.

Thanks,

Yuming     

On Wed, Feb 8, 2017 at 9:54 AM, fabrice senger-2 [via ImageJ] <[hidden email]> wrote:

Hello,

I'm wondering to wich extent CurvAlign compares to OrientionJ

Thank you,

Fabrice

2017-02-07 0:05 GMT+01:00 Yuming Liu <[hidden email]>:

> Hi Aidan,
>
> I am Curtis's colleague, Yuming Liu who is taking care of CurveAlign now
> and
> would like to take your question about the use of CurveAlign.
>
> To launch a MAC standalone APP correctly, the following steps are
> suggested:
> right click the APP(ctrl -click)----->Show Package Contents ---->
> Contents---->MacOS---->applauncher (right-click and choose open).
>
> As far as your original question is concerned, CurveAlign measures
> relative
> angle of a fiber/fiber segment with respect to a nearest point on a user
> specified boundary. It can also measure the relative alignment (or
> dispersity of angle, or angular anisotropy) of a fiber's nearest 2,4, 8 ,16
> fibers but it does not output the relative angle of adjacent fibers. But it
> would be straightforward to add that.
>
> In the newest version(V4.0) that is under testing now, you can also set
> essentially arbitrary number of nearest fibers.
>
> Hope it helps. You can directly email me for further questions about the
> usage.
>
> Regards,
> Yuming
>
>
>
>
>

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