Posted by
Herbie-2 on
Apr 29, 2013; 10:25am
URL: http://imagej.273.s1.nabble.com/measure-length-of-many-parallel-lines-tp5002827p5002849.html
It's always a good idea to start with what was stated first in a thread.
Hence, I just had look at the original image in which--I must admit--I
can't see any parallel lines but more or less aligned parallel
structures (sequences of dots). For me it makes no sense to apply the
Hough transform to such images (for an analysis of the elongation of
these structures) without heavy preprocessing.
In any case, the term "lines" is definitely wrong in the context of the
sample image and to realize this fact may lead to more promising
approaches to solve your task.
HTH
Herbie
_____________________________________
On 27.04.13 10:18, sombreroduck wrote:
> Hi,
> We have images with many more-or-less parallel lines. We can measure the
> spacing with FFT, but is there a way to measure all their lengths? (and/or
> the distribution of) Either if there is a function that could do this, or if
> I could write a plugin/macro?
>
> We're looking for a software solution to extract the numbers since measuring
> them by hand, one at a time, could be subjective (because we know what the
> theory says), plus there will be many hundreds of them...
>
> I've appended an example image, just to give you an idea of what I'm talking
> about. Others might have several, smaller areas with similar lines (but if
> need be we could crop them...)
>
> Cheers!
> R
>
> <
http://imagej.1557.x6.nabble.com/file/n5002827/isoPP.png>
>
>
>
> --
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